[DRE-maint] Bug#906688: ruby-netrc: FTBFS in buster/sid (test_missing_environment fails)

[Santiago Vila]

Package: src:ruby-netrc
Version: 0.11.0-1
Severity: serious
Tags: ftbfs

Dear maintainer:

I tried to build this package in buster but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-indep
dh build-indep --buildsystem=ruby --with ruby
   dh_update_autotools_config -i -O--buildsystem=ruby
   dh_auto_configure -i -O--buildsystem=ruby
	dh_ruby --configure
   dh_auto_build -i -O--buildsystem=ruby
	dh_ruby --build
   dh_ruby --build
   dh_auto_test -i -O--buildsystem=ruby
	dh_ruby --test
 fakeroot debian/rules binary-indep
dh binary-indep --buildsystem=ruby --with ruby
   dh_testroot -i -O--buildsystem=ruby
   dh_prep -i -O--buildsystem=ruby

[... snipped ...]

TestNetrc#test_multi_without_default = 0.00 s = .
TestNetrc#test_set = 0.00 s = .
TestNetrc#test_missing_environment = 0.00 s = F
TestNetrc#test_permission_error = 0.00 s = .
TestNetrc#test_save = 0.00 s = .
TestNetrc#test_entry_splat = 0.00 s = .
TestNetrc#test_get_missing = DEPRECATED: Use assert_nil if expecting nil from /<<PKGBUILDDIR>>/test/test_netrc.rb:169. This will fail in Minitest 6.
0.00 s = .
TestNetrc#test_netrc_environment_variable = 0.00 s = .
TestNetrc#test_add_get = 0.00 s = .
TestNetrc#test_add_newlineless = 0.00 s = .
TestNetrc#test_permission_error_windows = 0.00 s = .
TestNetrc#test_multi_with_default = 0.00 s = .
TestNetrc#test_allow_permissive_netrc_file_option = 0.00 s = .
TestNetrc#test_write_entry = 0.00 s = .
TestNetrc#test_parse_file = 0.00 s = .
TestNetrc#test_with_default = 0.00 s = .
TestNetrc#test_entry_implicit_splat = 0.00 s = .
TestNetrc#test_missing_file = 0.00 s = .
TestNetrc#test_parse_empty = 0.00 s = .
TestNetrc#test_set_get = 0.00 s = .
TestNetrc#test_password_file = 0.00 s = .
TestNetrc#test_add = 0.00 s = .
TestNetrc#test_login_file = 0.00 s = .

Finished in 0.022940s, 1787.2391 runs/s, 2571.8807 assertions/s.

  1) Failure:
TestNetrc#test_missing_environment [/<<PKGBUILDDIR>>/test/test_netrc.rb:203]:
--- expected
+++ actual
@@ -1,2 +1 @@
-# encoding: ASCII-8BIT
-"/<<PKGBUILDDIR>>/.netrc"
+"/build/.netrc"


41 runs, 59 assertions, 1 failures, 0 errors, 0 skips
rake aborted!
Command failed with status (1): [ruby -w  "/usr/lib/ruby/vendor_ruby/rake/rake_test_loader.rb" "test/test_lex.rb" "test/test_netrc.rb" "test/test_parse.rb" -v]

Tasks: TOP => default
(See full trace by running task with --trace)
ERROR: Test "ruby2.5" failed. Exiting.
dh_auto_install: dh_ruby --install /<<PKGBUILDDIR>>/debian/ruby-netrc returned exit code 1
make: *** [debian/rules:6: binary-indep] Error 1
dpkg-buildpackage: error: fakeroot debian/rules binary-indep subprocess returned exit status 2
--------------------------------------------------------------------------------

The above build was made with sbuild and schroot, under a user called "buildd" having
/build as its home directory.

Note: This does not happen in reproducible builds, but I don't know why.
Apparently, this happens every time, in any way it's built (sbuild or by hand),
as far as the build directory is different than the HOME directory.

Thanks.