Bug#984151: gnome-builder: ftbfs with GCC-11

[Matthias Klose]

Package: src:gnome-builder
Version: 3.38.1-1
Severity: normal
Tags: sid bookworm
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-11

[This bug is not targeted to the upcoming bullseye release]

Please keep this issue open in the bug tracker for the package it
was filed for.  If a fix in another package is required, please
file a bug for the other package (or clone), and add a block in this
package. Please keep the issue open until the package can be built in
a follow-up test rebuild.

The package fails to build in a test rebuild on at least amd64 with
gcc-11/g++-11, but succeeds to build with gcc-10/g++-10. The
severity of this report will be raised before the bookworm release,
so nothing has to be done for the bullseye release.

The full build log can be found at:
http://people.debian.org/~doko/logs/20210228/filtered/gcc11/gnome-builder_3.38.1-1_unstable_gcc11.log
The last lines of the build log are at the end of this report.

To build with GCC 11, either set CC=gcc-11 CXX=g++-11 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t=experimental install g++ 

Common build failures are new warnings resulting in build failures with
-Werror turned on, or new/dropped symbols in Debian symbols files.
For other C/C++ related build failures see the porting guide at
http://gcc.gnu.org/gcc-11/porting_to.html

GCC 11 defaults to the GNU++17 standard.  If your package installs
header files in /usr/include, please don't work around C++17 issues
by choosing a lower C++ standard for the package build, but fix these
issues to build with the C++17 standard.

[...]
Ign:8 http://people.debian.org/~doko/gcc/gcc11 ./ Packages
Ign:8 http://people.debian.org/~doko/gcc/gcc11 ./ Packages
Ign:8 http://people.debian.org/~doko/gcc/gcc11 ./ Packages
Hit:8 http://people.debian.org/~doko/gcc/gcc11 ./ Packages
Fetched 300 kB in 3s (112 kB/s)
Reading package lists...
Reading package lists...
Building dependency tree...
Reading state information...
Calculating upgrade...
The following packages will be upgraded:
  libzstd1
1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 319 kB of archives.
After this operation, 21.5 kB disk space will be freed.
Get:1 http://127.0.0.1:12990/debian sid/main amd64 libzstd1 amd64 1.4.8+dfsg-2.1 [319 kB]
debconf: delaying package configuration, since apt-utils is not installed
Fetched 319 kB in 0s (4418 kB/s)
(Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
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(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 13755 files and directories currently installed.)
Preparing to unpack .../libzstd1_1.4.8+dfsg-2.1_amd64.deb ...
Unpacking libzstd1:amd64 (1.4.8+dfsg-2.1) over (1.4.8+dfsg-2) ...
Setting up libzstd1:amd64 (1.4.8+dfsg-2.1) ...
Processing triggers for libc-bin (2.31-9) ...

+------------------------------------------------------------------------------+
| Fetch source files                                                           |
+------------------------------------------------------------------------------+


Check APT
---------

Checking available source versions...
E: apt-cache returned no information about gnome-builder source
E: Are there any deb-src lines in your /etc/apt/sources.list?

+------------------------------------------------------------------------------+
| Cleanup                                                                      |
+------------------------------------------------------------------------------+

Purging /build/gnome-builder-RhOxXA
Not cleaning session: cloned chroot in use
E: Failed to fetch source files

+------------------------------------------------------------------------------+
| Summary                                                                      |
+------------------------------------------------------------------------------+

Build Architecture: amd64
Build Type: binary
Build-Space: n/a
Build-Time: 0
Distribution: unstable
Fail-Stage: fetch-src
Host Architecture: amd64
Install-Time: 0
Job: gnome-builder_3.38.1-1
Machine Architecture: amd64
Package: gnome-builder
Package-Time: 0
Source-Version: 3.38.1-1
Space: n/a
Status: given-back
Version: 3.38.1-1
--------------------------------------------------------------------------------
Finished at 2021-03-01T20:45:02Z
Build needed 00:00:00, no disk space
E: Failed to fetch source files
DC-Status: Failed 59.294937267s
DC-Time-Estimation: 59.294937267 versus expected 294 (r/m: 3.958264795460417 ; m: 59.294937267)