Bug#952618: sagemath: FTBFS: [dochtml] [reference] intersphinx inventory '/usr/share/doc/python-ppl-doc/html/objects.inv' not fetchable due to <class 'FileNotFoundError'>: [Errno 2] No such file or directory: '/usr/share/doc/python-ppl-doc/html/objects.inv'

Lucas Nussbaum lucas at debian.org
Wed Feb 26 16:18:17 GMT 2020


Source: sagemath
Version: 9.0-1
Severity: serious
Justification: FTBFS on amd64
Tags: bullseye sid ftbfs
Usertags: ftbfs-20200225 ftbfs-bullseye

Hi,

During a rebuild of all packages in sid, your package failed to build on
amd64.

This rebuild was done by building only architecture:any binary packages
(binary-arch target of debian/rules).

Relevant part (hopefully):
> make[5]: Entering directory '/<<PKGBUILDDIR>>/sage/build/make'
> if [ -z "$SAGE_INSTALL_FETCH_ONLY" ]; then \
> 	cd /<<PKGBUILDDIR>>/sage/src && source bin/sage-env && \
> 	sage-logger -p 'time make -j4 sage' '/<<PKGBUILDDIR>>/sage/logs/pkgs/sagelib-9.0.log'; \
> fi
> [sagelib-9.0] make[6]: Entering directory '/<<PKGBUILDDIR>>/sage/src'
> [sagelib-9.0] make[6]: warning: -j4 forced in submake: resetting jobserver mode.
> [sagelib-9.0] cd . && export                                    \
> [sagelib-9.0]     SAGE_ROOT=/doesnotexist                               \
> [sagelib-9.0]     SAGE_SRC=/doesnotexist                                \
> [sagelib-9.0]     SAGE_SRC_ROOT=/doesnotexist                           \
> [sagelib-9.0]     SAGE_DOC_SRC=/doesnotexist                            \
> [sagelib-9.0]     SAGE_BUILD_DIR=/doesnotexist                          \
> [sagelib-9.0]     SAGE_PKGS=/<<PKGBUILDDIR>>/sage/build/pkgs                \
> [sagelib-9.0] && sage-python -u setup.py --no-user-cfg build install --root ../../debian/build --install-layout deb -O2
> [sagelib-9.0] /<<PKGBUILDDIR>>/sage/src/bin/sage-env: line 130: cd: /doesnotexist: No such file or directory
> [sagelib-9.0] Warning: overwriting SAGE_ROOT environment variable:
> [sagelib-9.0] Old SAGE_ROOT=/doesnotexist
> [sagelib-9.0] New SAGE_ROOT=
> [sagelib-9.0] Discovering Python/Cython source code....
> [sagelib-9.0] Discovered Python/Cython sources, time: 0.01 seconds.
> [sagelib-9.0] running build
> [sagelib-9.0] Generating auto-generated sources
> [sagelib-9.0] Building interpreters for fast_callable
> [sagelib-9.0] running build_cython
> [sagelib-9.0] Enabling Cython debugging support
> [sagelib-9.0] Updating Cython code....
> [sagelib-9.0] Finished Cythonizing, time: 1.43 seconds.
> [sagelib-9.0] running build_py
> [sagelib-9.0] running build_ext
> [sagelib-9.0] Executing 0 commands (using 1 thread)
> [sagelib-9.0] Time to execute 0 commands: 0.11 seconds.
> [sagelib-9.0] Total time spent compiling C/C++ extensions: 0.14 seconds.
> [sagelib-9.0] running install
> [sagelib-9.0] running install_lib
> [sagelib-9.0] writing byte-compilation script '/tmp/tmpfhhq4wur.py'
> [sagelib-9.0] /usr/bin/python3 /tmp/tmpfhhq4wur.py
> [sagelib-9.0] removing /tmp/tmpfhhq4wur.py
> [sagelib-9.0] running install_egg_info
> [sagelib-9.0] Removing ../../debian/build/usr/lib/python3/dist-packages/sage-9.0.egg-info
> [sagelib-9.0] Writing ../../debian/build/usr/lib/python3/dist-packages/sage-9.0.egg-info
> [sagelib-9.0] Cleaning up stale installed files....
> [sagelib-9.0] - cleaning build/lib.linux-x86_64-3.7
> [sagelib-9.0] - cleaning ../../debian/build/usr/lib/python3/dist-packages
> [sagelib-9.0] Finished cleaning, time: 0.14 seconds.
> [sagelib-9.0] if [ "$UNAME" = "CYGWIN" ]; then                         \
> [sagelib-9.0]     sage-rebase.sh "$SAGE_LOCAL" 2>/dev/null;            \
> [sagelib-9.0] fi
> [sagelib-9.0] make[6]: Leaving directory '/<<PKGBUILDDIR>>/sage/src'
> [sagelib-9.0] 
> [sagelib-9.0] real	0m3.506s
> [sagelib-9.0] user	0m2.960s
> [sagelib-9.0] sys	0m0.440s
> cd ../.. && sage-logger -p './sage --docbuild --no-pdf-links all html ' logs/dochtml.log
> [dochtml] 
> [dochtml] Building reference manual, first pass.
> [dochtml] 
> [dochtml] Setting permissions of DOT_SAGE directory so only you can read and write it.
> [dochtml] [reference] building [inventory]: targets for 1 source files that are out of date
> [dochtml] [reference] updating environment: 1 added, 0 changed, 0 removed
> [dochtml] [reference] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/references.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/references
> [dochtml] [repl     ] building [inventory]: targets for 37 source files that are out of date
> [dochtml] [polynomia] building [inventory]: targets for 66 source files that are out of date
> [dochtml] [repl     ] updating environment: 37 added, 0 changed, 0 removed
> [dochtml] [polynomia] updating environment: 66 added, 0 changed, 0 removed
> [dochtml] [tensor_fr] building [inventory]: targets for 19 source files that are out of date
> [dochtml] [tensor_fr] updating environment: 19 added, 0 changed, 0 removed
> [dochtml] [manifolds] building [inventory]: targets for 75 source files that are out of date
> [dochtml] [manifolds] updating environment: 75 added, 0 changed, 0 removed
> [dochtml] [tensor_fr] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/tensor_free_modules.
> [dochtml] [repl     ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/repl.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/tensor_free_modules
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/repl
> [dochtml] [algebras ] building [inventory]: targets for 74 source files that are out of date
> [dochtml] [algebras ] updating environment: 74 added, 0 changed, 0 removed
> [dochtml] [combinat ] building [inventory]: targets for 367 source files that are out of date
> [dochtml] [combinat ] updating environment: 367 added, 0 changed, 0 removed
> [dochtml] [algebras ] <unknown>:1351: DeprecationWarning: invalid escape sequence \Q
> [dochtml] [polynomia] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/polynomial_rings.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/polynomial_rings
> [dochtml] [dynamics ] building [inventory]: targets for 12 source files that are out of date
> [dochtml] [dynamics ] updating environment: 12 added, 0 changed, 0 removed
> [dochtml] [dynamics ] <unknown>:1351: DeprecationWarning: invalid escape sequence \Q
> [dochtml] [dynamics ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/dynamics.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/dynamics
> [dochtml] [plot3d   ] building [inventory]: targets for 20 source files that are out of date
> [dochtml] [plot3d   ] updating environment: 20 added, 0 changed, 0 removed
> [dochtml] [algebras ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/algebras.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/algebras
> [dochtml] [arithgrou] building [inventory]: targets for 12 source files that are out of date
> [dochtml] [arithgrou] updating environment: 12 added, 0 changed, 0 removed
> [dochtml] [arithgrou] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/arithgroup.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/arithgroup
> [dochtml] [graphs   ] building [inventory]: targets for 62 source files that are out of date
> [dochtml] [graphs   ] updating environment: 62 added, 0 changed, 0 removed
> [dochtml] [graphs   ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/graphs.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/graphs
> [dochtml] [homology ] building [inventory]: targets for 26 source files that are out of date
> [dochtml] [homology ] updating environment: 26 added, 0 changed, 0 removed
> [dochtml] [homology ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/homology.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/homology
> [dochtml] [misc     ] building [inventory]: targets for 108 source files that are out of date
> [dochtml] [misc     ] updating environment: 108 added, 0 changed, 0 removed
> [dochtml] [misc     ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/misc.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/misc
> [dochtml] [parallel ] building [inventory]: targets for 8 source files that are out of date
> [dochtml] [parallel ] updating environment: 8 added, 0 changed, 0 removed
> [dochtml] [parallel ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/parallel.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/parallel
> [dochtml] [asymptoti] building [inventory]: targets for 8 source files that are out of date
> [dochtml] [asymptoti] updating environment: 8 added, 0 changed, 0 removed
> [dochtml] [asymptoti] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/asymptotic.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/asymptotic
> [dochtml] [calculus ] building [inventory]: targets for 38 source files that are out of date
> [dochtml] [calculus ] updating environment: 38 added, 0 changed, 0 removed
> [dochtml] [calculus ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/calculus.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/calculus
> [dochtml] [categorie] building [inventory]: targets for 212 source files that are out of date
> [dochtml] [categorie] updating environment: 212 added, 0 changed, 0 removed
> [dochtml] [categorie] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/categories.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/categories
> [dochtml] [coding   ] building [inventory]: targets for 38 source files that are out of date
> [dochtml] [coding   ] updating environment: 38 added, 0 changed, 0 removed
> [dochtml] [coding   ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/coding.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/coding
> [dochtml] [coercion ] building [inventory]: targets for 8 source files that are out of date
> [dochtml] [coercion ] updating environment: 8 added, 0 changed, 0 removed
> [dochtml] [coercion ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/coercion.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/coercion
> [dochtml] [constants] building [inventory]: targets for 3 source files that are out of date
> [dochtml] [constants] updating environment: 3 added, 0 changed, 0 removed
> [dochtml] [constants] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/constants.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/constants
> [dochtml] [cpython  ] building [inventory]: targets for 8 source files that are out of date
> [dochtml] [cpython  ] updating environment: 8 added, 0 changed, 0 removed
> [dochtml] [cpython  ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/cpython.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/cpython
> [dochtml] [cryptogra] building [inventory]: targets for 22 source files that are out of date
> [dochtml] [cryptogra] updating environment: 22 added, 0 changed, 0 removed
> [dochtml] [cryptogra] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/cryptography.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/cryptography
> [dochtml] [curves   ] building [inventory]: targets for 71 source files that are out of date
> [dochtml] [curves   ] updating environment: 71 added, 0 changed, 0 removed
> [dochtml] [manifolds] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/manifolds.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/manifolds
> [dochtml] [data_stru] building [inventory]: targets for 5 source files that are out of date
> [dochtml] [data_stru] updating environment: 5 added, 0 changed, 0 removed
> [dochtml] [data_stru] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/data_structures.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/data_structures
> [dochtml] [databases] building [inventory]: targets for 13 source files that are out of date
> [dochtml] [databases] updating environment: 13 added, 0 changed, 0 removed
> [dochtml] [combinat ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/combinat.
> [dochtml] [databases] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/databases.
> [dochtml] [curves   ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/curves.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/databases
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/curves
> [dochtml] [diophanti] building [inventory]: targets for 2 source files that are out of date
> [dochtml] [diophanti] updating environment: 2 added, 0 changed, 0 removed
> [dochtml] [diophanti] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/diophantine_approximation.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/diophantine_approximation
> [dochtml] [discrete_] building [inventory]: targets for 48 source files that are out of date
> [dochtml] [discrete_] updating environment: 48 added, 0 changed, 0 removed
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/combinat
> [dochtml] [doctest  ] building [inventory]: targets for 10 source files that are out of date
> [dochtml] [finance  ] building [inventory]: targets for 7 source files that are out of date
> [dochtml] [finance  ] updating environment: 7 added, 0 changed, 0 removed
> [dochtml] [doctest  ] updating environment: 10 added, 0 changed, 0 removed
> [dochtml] [finance  ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/finance.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/finance
> [dochtml] [doctest  ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/doctest.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/doctest
> [dochtml] [finite_ri] building [inventory]: targets for 20 source files that are out of date
> [dochtml] [finite_ri] updating environment: 20 added, 0 changed, 0 removed
> [dochtml] [function_] building [inventory]: targets for 11 source files that are out of date
> [dochtml] [function_] updating environment: 11 added, 0 changed, 0 removed
> [dochtml] [function_] <unknown>:2217: DeprecationWarning: invalid escape sequence \g
> [dochtml] [finite_ri] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/finite_rings.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/finite_rings
> [dochtml] [function_] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/function_fields.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/function_fields
> [dochtml] [functions] building [inventory]: targets for 20 source files that are out of date
> [dochtml] [functions] updating environment: 20 added, 0 changed, 0 removed
> [dochtml] [game_theo] building [inventory]: targets for 6 source files that are out of date
> [dochtml] [game_theo] updating environment: 6 added, 0 changed, 0 removed
> [dochtml] [game_theo] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/game_theory.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/game_theory
> [dochtml] [functions] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/functions.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/functions
> [dochtml] [games    ] building [inventory]: targets for 5 source files that are out of date
> [dochtml] [games    ] updating environment: 5 added, 0 changed, 0 removed
> [dochtml] [discrete_] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/discrete_geometry.
> [dochtml] [games    ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/games.
> [dochtml] [groups   ] building [inventory]: targets for 69 source files that are out of date
> [dochtml] [groups   ] updating environment: 69 added, 0 changed, 0 removed
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/games
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/discrete_geometry
> [dochtml] [hecke    ] building [inventory]: targets for 10 source files that are out of date
> [dochtml] [hecke    ] updating environment: 10 added, 0 changed, 0 removed
> [dochtml] [history_a] building [inventory]: targets for 1 source files that are out of date
> [dochtml] [history_a] updating environment: 1 added, 0 changed, 0 removed
> [dochtml] [history_a] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/history_and_license.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/history_and_license
> [dochtml] [hecke    ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/hecke.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/hecke
> [dochtml] [hyperboli] building [inventory]: targets for 6 source files that are out of date
> [dochtml] [hyperboli] updating environment: 6 added, 0 changed, 0 removed
> [dochtml] [interface] building [inventory]: targets for 49 source files that are out of date
> [dochtml] [interface] updating environment: 49 added, 0 changed, 0 removed
> [dochtml] [groups   ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/groups.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/groups
> [dochtml] [knots    ] building [inventory]: targets for 3 source files that are out of date
> [dochtml] [knots    ] updating environment: 3 added, 0 changed, 0 removed
> [dochtml] [interface] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/interfaces.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/interfaces
> [dochtml] [hyperboli] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/hyperbolic_geometry.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/hyperbolic_geometry
> [dochtml] [lfunction] building [inventory]: targets for 5 source files that are out of date
> [dochtml] [lfunction] updating environment: 5 added, 0 changed, 0 removed
> [dochtml] [knots    ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/knots.
> [dochtml] [lfunction] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/lfunctions.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/knots
> [dochtml] [libs     ] building [inventory]: targets for 41 source files that are out of date
> [dochtml] [libs     ] updating environment: 41 added, 0 changed, 0 removed
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/lfunctions
> [dochtml] [logic    ] building [inventory]: targets for 7 source files that are out of date
> [dochtml] [logic    ] updating environment: 7 added, 0 changed, 0 removed
> [dochtml] [matrices ] building [inventory]: targets for 44 source files that are out of date
> [dochtml] [matrices ] updating environment: 44 added, 0 changed, 0 removed
> [dochtml] [libs     ] /usr/lib/python3/dist-packages/sphinx/ext/autodoc/importer.py:175: DeprecationWarning: The Sage wrappers around ppl are now superseded by the standalone pplpy. Please use import 'ppl' instead of 'sage.libs.ppl'.
> [dochtml] [libs     ] See http://trac.sagemath.org/23024 for details.
> [dochtml] [libs     ]   module = import_module(modname, warningiserror=warningiserror)
> [dochtml] [logic    ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/logic.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/logic
> [dochtml] [libs     ] /usr/lib/python3/dist-packages/sphinx/ext/autodoc/importer.py:175: DeprecationWarning: the module sage.libs.ratpoints is deprecated; use pari.ellratpoints or pari.hyperellratpoints instead
> [dochtml] [libs     ] See http://trac.sagemath.org/24531 for details.
> [dochtml] [libs     ]   module = import_module(modname, warningiserror=warningiserror)
> [dochtml] [libs     ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/libs.
> [dochtml] [matroids ] building [inventory]: targets for 20 source files that are out of date
> [dochtml] [matroids ] updating environment: 20 added, 0 changed, 0 removed
> [dochtml] /<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/__init__.py:1026: DeprecationWarning: The Sage wrappers around ppl are now superseded by the standalone pplpy. Please use import 'ppl' instead of 'sage.libs.ppl'.
> [dochtml] See http://trac.sagemath.org/23024 for details.
> [dochtml]   title = self.get_module_docstring_title(module_name)
> [dochtml] /<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/__init__.py:1026: DeprecationWarning: the module sage.libs.ratpoints is deprecated; use pari.ellratpoints or pari.hyperellratpoints instead
> [dochtml] See http://trac.sagemath.org/24531 for details.
> [dochtml]   title = self.get_module_docstring_title(module_name)
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/libs
> [dochtml] [modabvar ] building [inventory]: targets for 12 source files that are out of date
> [dochtml] [modabvar ] updating environment: 12 added, 0 changed, 0 removed
> [dochtml] [modabvar ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/modabvar.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/modabvar
> [dochtml] [matroids ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/matroids.
> [dochtml] [matrices ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/matrices.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/matroids
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/matrices
> [dochtml] [modfrm   ] building [inventory]: targets for 22 source files that are out of date
> [dochtml] [modfrm   ] updating environment: 22 added, 0 changed, 0 removed
> [dochtml] [modfrm_he] building [inventory]: targets for 15 source files that are out of date
> [dochtml] [modfrm_he] updating environment: 15 added, 0 changed, 0 removed
> [dochtml] [modmisc  ] building [inventory]: targets for 17 source files that are out of date
> [dochtml] [modmisc  ] updating environment: 17 added, 0 changed, 0 removed
> [dochtml] [modfrm   ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/modfrm.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/modfrm
> [dochtml] [modsym   ] building [inventory]: targets for 27 source files that are out of date
> [dochtml] [modsym   ] updating environment: 27 added, 0 changed, 0 removed
> [dochtml] [modfrm_he] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/modfrm_hecketriangle.
> [dochtml] [modmisc  ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/modmisc.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/modfrm_hecketriangle
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/modmisc
> [dochtml] [monoids  ] building [inventory]: targets for 12 source files that are out of date
> [dochtml] [monoids  ] updating environment: 12 added, 0 changed, 0 removed
> [dochtml] [modules  ] building [inventory]: targets for 40 source files that are out of date
> [dochtml] [modules  ] updating environment: 40 added, 0 changed, 0 removed
> [dochtml] [monoids  ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/monoids.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/monoids
> [dochtml] [modsym   ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/modsym.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/modsym
> [dochtml] [number_fi] building [inventory]: targets for 26 source files that are out of date
> [dochtml] [number_fi] updating environment: 26 added, 0 changed, 0 removed
> [dochtml] [numerical] building [inventory]: targets for 20 source files that are out of date
> [dochtml] [numerical] updating environment: 20 added, 0 changed, 0 removed
> [dochtml] [modules  ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/modules.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/modules
> [dochtml] [padics   ] building [inventory]: targets for 29 source files that are out of date
> [dochtml] [padics   ] updating environment: 29 added, 0 changed, 0 removed
> [dochtml] [numerical] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/numerical.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/numerical
> [dochtml] [number_fi] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/number_fields.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/number_fields
> [dochtml] [plotting ] building [inventory]: targets for 32 source files that are out of date
> [dochtml] [plotting ] updating environment: 32 added, 0 changed, 0 removed
> [dochtml] [padics   ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/padics.
> [dochtml] [power_ser] building [inventory]: targets for 13 source files that are out of date
> [dochtml] [power_ser] updating environment: 13 added, 0 changed, 0 removed
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/padics
> [dochtml] [probabili] building [inventory]: targets for 3 source files that are out of date
> [dochtml] [probabili] updating environment: 3 added, 0 changed, 0 removed
> [dochtml] [power_ser] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/power_series.
> [dochtml] [probabili] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/probability.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/power_series
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/probability
> [dochtml] [quadratic] building [inventory]: targets for 14 source files that are out of date
> [dochtml] [quadratic] updating environment: 14 added, 0 changed, 0 removed
> [dochtml] [quat_alge] building [inventory]: targets for 3 source files that are out of date
> [dochtml] [quat_alge] updating environment: 3 added, 0 changed, 0 removed
> [dochtml] [quat_alge] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/quat_algebras.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/quat_algebras
> [dochtml] [quadratic] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/quadratic_forms.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/quadratic_forms
> [dochtml] [quivers  ] building [inventory]: targets for 8 source files that are out of date
> [dochtml] [quivers  ] updating environment: 8 added, 0 changed, 0 removed
> [dochtml] [quivers  ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/quivers.
> [dochtml] [riemannia] building [inventory]: targets for 3 source files that are out of date
> [dochtml] [riemannia] updating environment: 3 added, 0 changed, 0 removed
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/quivers
> [dochtml] [riemannia] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/riemannian_geometry.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/riemannian_geometry
> [dochtml] [rings    ] building [inventory]: targets for 15 source files that are out of date
> [dochtml] [rings    ] updating environment: 15 added, 0 changed, 0 removed
> [dochtml] [rings_num] building [inventory]: targets for 14 source files that are out of date
> [dochtml] [rings_num] updating environment: 14 added, 0 changed, 0 removed
> [dochtml] [rings    ] <unknown>:1351: DeprecationWarning: invalid escape sequence \Q
> [dochtml] [rings    ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/rings.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/rings
> [dochtml] [rings_sta] building [inventory]: targets for 14 source files that are out of date
> [dochtml] [rings_sta] updating environment: 14 added, 0 changed, 0 removed
> [dochtml] [rings_num] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/rings_numerical.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/rings_numerical
> [dochtml] [rings_sta] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/rings_standard.
> [dochtml] [sat      ] building [inventory]: targets for 8 source files that are out of date
> [dochtml] [sat      ] updating environment: 8 added, 0 changed, 0 removed
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/rings_standard
> [dochtml] [sat      ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/sat.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/sat
> [dochtml] [schemes  ] building [inventory]: targets for 51 source files that are out of date
> [dochtml] [schemes  ] updating environment: 51 added, 0 changed, 0 removed
> [dochtml] [schemes  ] <unknown>:630: DeprecationWarning: invalid escape sequence \i
> [dochtml] [schemes  ] <unknown>:839: DeprecationWarning: invalid escape sequence \i
> [dochtml] [semirings] building [inventory]: targets for 3 source files that are out of date
> [dochtml] [semirings] updating environment: 3 added, 0 changed, 0 removed
> [dochtml] [semirings] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/semirings.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/semirings
> [dochtml] [schemes  ] <unknown>:1351: DeprecationWarning: invalid escape sequence \Q
> [dochtml] [sets     ] building [inventory]: targets for 18 source files that are out of date
> [dochtml] [sets     ] updating environment: 18 added, 0 changed, 0 removed
> [dochtml] [sets     ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/sets.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/sets
> [dochtml] [stats    ] building [inventory]: targets for 11 source files that are out of date
> [dochtml] [stats    ] updating environment: 11 added, 0 changed, 0 removed
> [dochtml] [schemes  ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/schemes.
> [dochtml] [stats    ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/stats.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/schemes
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/stats
> [dochtml] [structure] building [inventory]: targets for 33 source files that are out of date
> [dochtml] [structure] updating environment: 33 added, 0 changed, 0 removed
> [dochtml] [valuation] building [inventory]: targets for 14 source files that are out of date
> [dochtml] [valuation] updating environment: 14 added, 0 changed, 0 removed
> [dochtml] [structure] /usr/lib/python3/dist-packages/sphinx/ext/autodoc/importer.py:175: DeprecationWarning: the module sage.structure.misc is deprecated
> [dochtml] [structure] See https://trac.sagemath.org/27099 for details.
> [dochtml] [structure]   module = import_module(modname, warningiserror=warningiserror)
> [dochtml] [valuation] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/valuations.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/valuations
> [dochtml] [structure] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/structure.
> [dochtml] /<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/__init__.py:1026: DeprecationWarning: the module sage.structure.misc is deprecated
> [dochtml] See https://trac.sagemath.org/27099 for details.
> [dochtml]   title = self.get_module_docstring_title(module_name)
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/structure
> [dochtml] [plot3d   ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/plot3d.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/plot3d
> [dochtml] [plotting ] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference/plotting.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference/plotting
> [dochtml] [reference] building [inventory]: targets for 1 source files that are out of date
> [dochtml] [reference] updating environment: 1 added, 0 changed, 0 removed
> [dochtml] [reference] Merging environment/index files...
> [dochtml] [reference]     algebras: 27 todos, 74 index, 6 citations, 71 modules
> [dochtml] [reference]     arithgroup: 1 todos, 12 index, 0 citations, 11 modules
> [dochtml] [reference]     asymptotic: 6 todos, 8 index, 0 citations, 7 modules
> [dochtml] [reference]     calculus: 2 todos, 38 index, 0 citations, 37 modules
> [dochtml] [reference]     categories: 106 todos, 212 index, 0 citations, 211 modules
> [dochtml] [reference]     coding: 1 todos, 38 index, 1 citations, 37 modules
> [dochtml] [reference]     coercion: 0 todos, 8 index, 0 citations, 7 modules
> [dochtml] [reference]     combinat: 152 todos, 367 index, 232 citations, 366 modules
> [dochtml] [reference]     constants: 0 todos, 3 index, 0 citations, 2 modules
> [dochtml] [reference]     cpython: 0 todos, 8 index, 0 citations, 7 modules
> [dochtml] [reference]     cryptography: 0 todos, 22 index, 0 citations, 21 modules
> [dochtml] [reference]     curves: 12 todos, 71 index, 2 citations, 70 modules
> [dochtml] [reference]     data_structures: 2 todos, 5 index, 0 citations, 4 modules
> [dochtml] [reference]     databases: 5 todos, 13 index, 0 citations, 12 modules
> [dochtml] [reference]     diophantine_approximation: 3 todos, 2 index, 0 citations, 1 modules
> [dochtml] [reference]     discrete_geometry: 5 todos, 48 index, 0 citations, 47 modules
> [dochtml] [reference]     doctest: 0 todos, 10 index, 0 citations, 9 modules
> [dochtml] [reference]     dynamics: 13 todos, 12 index, 0 citations, 9 modules
> [dochtml] [reference]     finance: 0 todos, 7 index, 0 citations, 6 modules
> [dochtml] [reference]     finite_rings: 1 todos, 20 index, 0 citations, 19 modules
> [dochtml] [reference]     function_fields: 2 todos, 11 index, 0 citations, 10 modules
> [dochtml] [reference]     functions: 2 todos, 20 index, 0 citations, 19 modules
> [dochtml] [reference]     game_theory: 0 todos, 6 index, 0 citations, 5 modules
> [dochtml] [reference]     games: 0 todos, 5 index, 0 citations, 4 modules
> [dochtml] [reference]     graphs: 17 todos, 62 index, 1 citations, 61 modules
> [dochtml] [reference]     groups: 14 todos, 69 index, 0 citations, 68 modules
> [dochtml] [reference]     hecke: 0 todos, 10 index, 0 citations, 9 modules
> [dochtml] [reference]     history_and_license: 0 todos, 1 index, 0 citations, 0 modules
> [dochtml] [reference]     homology: 1 todos, 26 index, 0 citations, 25 modules
> [dochtml] [reference]     hyperbolic_geometry: 1 todos, 6 index, 0 citations, 5 modules
> [dochtml] [reference]     interfaces: 6 todos, 49 index, 0 citations, 48 modules
> [dochtml] [reference]     knots: 1 todos, 3 index, 0 citations, 2 modules
> [dochtml] [reference]     lfunctions: 2 todos, 5 index, 0 citations, 4 modules
> [dochtml] [reference]     libs: 2 todos, 41 index, 0 citations, 40 modules
> [dochtml] [reference]     logic: 2 todos, 7 index, 0 citations, 6 modules
> [dochtml] [reference]     manifolds: 1 todos, 75 index, 0 citations, 57 modules
> [dochtml] [reference]     matrices: 9 todos, 44 index, 0 citations, 43 modules
> [dochtml] [reference]     matroids: 6 todos, 20 index, 0 citations, 19 modules
> [dochtml] [reference]     misc: 12 todos, 108 index, 0 citations, 106 modules
> [dochtml] [reference]     modabvar: 0 todos, 12 index, 0 citations, 11 modules
> [dochtml] [reference]     modfrm: 0 todos, 22 index, 0 citations, 21 modules
> [dochtml] [reference]     modfrm_hecketriangle: 1 todos, 15 index, 0 citations, 14 modules
> [dochtml] [reference]     modmisc: 2 todos, 17 index, 1 citations, 16 modules
> [dochtml] [reference]     modsym: 0 todos, 27 index, 0 citations, 26 modules
> [dochtml] [reference]     modules: 8 todos, 40 index, 0 citations, 39 modules
> [dochtml] [reference]     monoids: 0 todos, 12 index, 0 citations, 11 modules
> [dochtml] [reference]     number_fields: 4 todos, 26 index, 0 citations, 25 modules
> [dochtml] [reference]     numerical: 0 todos, 20 index, 0 citations, 19 modules
> [dochtml] [reference]     padics: 3 todos, 29 index, 0 citations, 28 modules
> [dochtml] [reference]     parallel: 0 todos, 8 index, 0 citations, 7 modules
> [dochtml] [reference]     plot3d: 8 todos, 20 index, 0 citations, 18 modules
> [dochtml] [reference]     plotting: 0 todos, 32 index, 0 citations, 31 modules
> [dochtml] [reference]     polynomial_rings: 12 todos, 66 index, 0 citations, 61 modules
> [dochtml] [reference]     power_series: 1 todos, 13 index, 0 citations, 12 modules
> [dochtml] [reference]     probability: 0 todos, 3 index, 0 citations, 2 modules
> [dochtml] [reference]     quadratic_forms: 3 todos, 14 index, 0 citations, 13 modules
> [dochtml] [reference]     quat_algebras: 0 todos, 3 index, 0 citations, 2 modules
> [dochtml] [reference]     quivers: 2 todos, 8 index, 0 citations, 7 modules
> [dochtml] [reference]     references: 0 todos, 1 index, 1272 citations, 0 modules
> [dochtml] [reference]     repl: 1 todos, 37 index, 0 citations, 33 modules
> [dochtml] [reference]     riemannian_geometry: 0 todos, 3 index, 0 citations, 2 modules
> [dochtml] [reference]     rings: 8 todos, 15 index, 0 citations, 14 modules
> [dochtml] [reference]     rings_numerical: 2 todos, 14 index, 0 citations, 13 modules
> [dochtml] [reference]     rings_standard: 1 todos, 14 index, 0 citations, 13 modules
> [dochtml] [reference]     sat: 0 todos, 8 index, 4 citations, 7 modules
> [dochtml] [reference]     schemes: 5 todos, 51 index, 0 citations, 50 modules
> [dochtml] [reference]     semirings: 0 todos, 3 index, 0 citations, 2 modules
> [dochtml] [reference]     sets: 4 todos, 18 index, 0 citations, 17 modules
> [dochtml] [reference]     stats: 0 todos, 11 index, 0 citations, 10 modules
> [dochtml] [reference]     structure: 7 todos, 33 index, 0 citations, 32 modules
> [dochtml] [reference]     tensor_free_modules: 2 todos, 19 index, 0 citations, 15 modules
> [dochtml] [reference]     valuations: 1 todos, 14 index, 0 citations, 13 modules
> [dochtml] [reference] ... done (489 todos, 2103 index, 1509 citations, 2053 modules)
> [dochtml] [reference] preparing documents... skipping loading of indexes... done
> [dochtml] [reference] The inventory files are in ../debian/build/usr/share/doc/sagemath/inventory/en/reference.
> [dochtml] Build finished. The built documents can be found in /<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/inventory/en/reference
> [dochtml] Building reference manual, second pass.
> [dochtml] 
> [dochtml] [reference] WARNING: failed to reach any of the inventories with the following issues:
> [dochtml] [reference] intersphinx inventory '/usr/share/doc/python-ppl-doc/html/objects.inv' not fetchable due to <class 'FileNotFoundError'>: [Errno 2] No such file or directory: '/usr/share/doc/python-ppl-doc/html/objects.inv'
> [dochtml] [reference] building [html]: targets for 1 source files that are out of date
> [dochtml] [reference] updating environment: 1 added, 0 changed, 0 removed
> [dochtml] [reference] The HTML pages are in ../debian/build/usr/share/doc/sagemath/html/en/reference/references.
> [dochtml] Traceback (most recent call last):
> [dochtml]   File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main
> [dochtml]     "__main__", mod_spec)
> [dochtml]   File "/usr/lib/python3.7/runpy.py", line 85, in _run_code
> [dochtml]     exec(code, run_globals)
> [dochtml]   File "/<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/sphinxbuild.py", line 328, in <module>
> [dochtml]     runsphinx()
> [dochtml]   File "/<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/sphinxbuild.py", line 317, in runsphinx
> [dochtml]     sys.stderr.raise_errors()
> [dochtml]   File "/<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/sphinxbuild.py", line 252, in raise_errors
> [dochtml]     raise OSError(self._error)
> [dochtml] OSError: WARNING: failed to reach any of the inventories with the following issues:
> [dochtml] Error building the documentation.
> [dochtml] Traceback (most recent call last):
> [dochtml]   File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main
> [dochtml]     "__main__", mod_spec)
> [dochtml]   File "/usr/lib/python3.7/runpy.py", line 85, in _run_code
> [dochtml]     exec(code, run_globals)
> [dochtml]   File "/<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/__main__.py", line 2, in <module>
> [dochtml]     main()
> [dochtml]   File "/<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/__init__.py", line 1698, in main
> [dochtml]     builder()
> [dochtml]   File "/<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/__init__.py", line 310, in _wrapper
> [dochtml]     getattr(get_builder(document), name)(*args, **kwds)
> [dochtml]   File "/<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/__init__.py", line 528, in _wrapper
> [dochtml]     self._build_bibliography(lang, format, *args, **kwds)
> [dochtml]   File "/<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/__init__.py", line 505, in _build_bibliography
> [dochtml]     build_many(build_ref_doc, references)
> [dochtml]   File "/<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/__init__.py", line 258, in build_many
> [dochtml]     _build_many(target, args, processes=NUM_THREADS)
> [dochtml]   File "/<<PKGBUILDDIR>>/debian/build/usr/lib/python3/dist-packages/sage_setup/docbuild/utils.py", line 283, in build_many
> [dochtml]     raise worker_exc.original_exception
> [dochtml] subprocess.CalledProcessError: Command '['python3', '-um', 'sage_setup.docbuild.sphinxbuild', '-N', '-b', 'html', '-d', '/<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/doctrees/en/reference/references', '-D', 'multidoc_first_pass=0', '/<<PKGBUILDDIR>>/sage/src/doc/en/reference/references', '/<<PKGBUILDDIR>>/debian/build/usr/share/doc/sagemath/html/en/reference/references']' returned non-zero exit status 1.
> make[5]: *** [Makefile:2020: doc-html] Error 1

The full build log is available from:
   http://qa-logs.debian.net/2020/02/25/sagemath_9.0-1_unstable.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.



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