autopkgtest fails in bionic

The test is passing locally, this may be only a proxy setting issue.

[21/21] URI::TestGeneric#test_use_proxy_p = 0.00 s

  1) Failure:
URI::TestGeneric#test_find_proxy [/tmp/autopkgtest.RLBJhW/autopkgtest_tmp/test/uri/test_generic.rb:830]:
<#<URI::HTTP http://127.0.0.1:8080>> expected but was
<nil>.

  2) Failure:
URI::TestGeneric#test_find_proxy_case_sensitive_env [/tmp/autopkgtest.RLBJhW/autopkgtest_tmp/test/uri/test_generic.rb:909]:
<#<URI::HTTP http://127.0.0.1:8080>> expected but was
<nil>.

  3) Failure:
URI::TestGeneric#test_find_proxy_get [/tmp/autopkgtest.RLBJhW/autopkgtest_tmp/test/uri/test_generic.rb:844]:
<#<URI::HTTP http://127.0.0.1:8080>> expected but was
<nil>.

Finished tests in 0.129418s, 162.2644 tests/s, 3623.9042 assertions/s.
21 tests, 469 assertions, 3 failures, 0 errors, 0 skips

As you may have noticed the ruby2.5 tests were fixed on Bionic in version 2.5.1-1ubuntu1.7 (accepted in Dec 1st). I am wondering if this is nothing related to the glibc changes because the same tests passed during the SRU process (you can see the log here [1]), and the test log above mention 127.0.0.1 as something expected and 127.0.0.1 is already added to the $no_proxy (check the autopkgtest call in the log you linked).

Anyway, I am going to tweak the $no_proxy content and try to re-trigger the test on LP to see if it can get sorted out.

[1] https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/amd64/r/ruby2.5/20201124_211114_f8f94@/log.gz

I don't think it is related to glibc changes, it is failing in the release pocket. I saw several new proxy related failures, so I suspect an infra change triggered that.

can you link to the several please?

We made a change to proxy handling recently, so you might want to follow up with Steve, in case that is wrong in some way:

https://git.launchpad.net/autopkgtest-cloud/commit/?id=f3679e7609b2f03d59aca28fe7329e4228350200

Maybe a dup of LP: #1908136.

The last test re-trigger from laney passed so I am considering this is not an issue anymore.