Running phase: unpackPhase
unpacking sources
Running phase: patchPhase
patching sources
Running phase: configurePhase
configuring
no configure script, doing nothing
Running phase: installPhase
installing
buildFlags: 
WARNING:  You build with buildroot.
  Build root: /
  Bin dir: /nix/store/5wmc4y3hnvnhgll9gkvjqd6dnlgh83z4-ruby2.7.6-doorkeeper-5.5.4/lib/ruby/gems/2.7.0/bin
  Gem home: /nix/store/5wmc4y3hnvnhgll9gkvjqd6dnlgh83z4-ruby2.7.6-doorkeeper-5.5.4/lib/ruby/gems/2.7.0
  Plugins dir: /nix/store/5wmc4y3hnvnhgll9gkvjqd6dnlgh83z4-ruby2.7.6-doorkeeper-5.5.4/lib/ruby/gems/2.7.0/plugins
Starting from 5.5.0 RC1 Doorkeeper requires client authentication for Resource Owner Password Grant
as stated in the OAuth RFC. You have to create a new OAuth client (Doorkeeper::Application) if you didn't
have it before and use client credentials in HTTP Basic auth if you previously used this grant flow without
client authentication. 

To opt out of this you could set the "skip_client_authentication_for_password_grant" configuration option
to "true", but note that this is in violation of the OAuth spec and represents a security risk.

Read https://github.com/doorkeeper-gem/doorkeeper/issues/561#issuecomment-612857163 for more details.
Successfully installed doorkeeper-5.5.4
1 gem installed
/nix/store/5wmc4y3hnvnhgll9gkvjqd6dnlgh83z4-ruby2.7.6-doorkeeper-5.5.4/lib/ruby/gems/2.7.0 /build
removed 'cache/doorkeeper-5.5.4.gem'
removed directory 'cache'
/build
Running phase: fixupPhase
post-installation fixup
shrinking RPATHs of ELF executables and libraries in /nix/store/5wmc4y3hnvnhgll9gkvjqd6dnlgh83z4-ruby2.7.6-doorkeeper-5.5.4
rewriting symlink /nix/store/5wmc4y3hnvnhgll9gkvjqd6dnlgh83z4-ruby2.7.6-doorkeeper-5.5.4/nix-support/gem-meta/spec to be relative to /nix/store/5wmc4y3hnvnhgll9gkvjqd6dnlgh83z4-ruby2.7.6-doorkeeper-5.5.4
strip is /nix/store/rkwixq2wda45gxx7zg1qh329zhkbvzzb-gcc-wrapper-11.3.0/bin/strip
stripping (with command strip and flags -S) in  /nix/store/5wmc4y3hnvnhgll9gkvjqd6dnlgh83z4-ruby2.7.6-doorkeeper-5.5.4/lib /nix/store/5wmc4y3hnvnhgll9gkvjqd6dnlgh83z4-ruby2.7.6-doorkeeper-5.5.4/bin
patching script interpreter paths in /nix/store/5wmc4y3hnvnhgll9gkvjqd6dnlgh83z4-ruby2.7.6-doorkeeper-5.5.4
checking for references to /build/ in /nix/store/5wmc4y3hnvnhgll9gkvjqd6dnlgh83z4-ruby2.7.6-doorkeeper-5.5.4...