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/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3/lib/ruby/gems/2.7.0/bin
  Gem home: /nix/store/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3/lib/ruby/gems/2.7.0
  Plugins dir: /nix/store/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3/lib/ruby/gems/2.7.0/plugins
-------------------------------------------------
Thank you for installing html-pipeline!
You must bundle Filter gem dependencies.
See html-pipeline README.md for more details.
https://github.com/jch/html-pipeline#dependencies
-------------------------------------------------
Successfully installed html-pipeline-2.14.3
1 gem installed
/nix/store/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3/lib/ruby/gems/2.7.0 /build
removed 'cache/html-pipeline-2.14.3.gem'
removed directory 'cache'
/build
Running phase: fixupPhase
post-installation fixup
shrinking RPATHs of ELF executables and libraries in /nix/store/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3
rewriting symlink /nix/store/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3/nix-support/gem-meta/spec to be relative to /nix/store/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3
strip is /nix/store/rkwixq2wda45gxx7zg1qh329zhkbvzzb-gcc-wrapper-11.3.0/bin/strip
stripping (with command strip and flags -S) in  /nix/store/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3/lib /nix/store/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3/bin
patching script interpreter paths in /nix/store/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3
/nix/store/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3/lib/ruby/gems/2.7.0/gems/html-pipeline-2.14.3/bin/html-pipeline: interpreter directive changed from "#!/usr/bin/env ruby" to "/nix/store/a98m1vmmjdid16chcclf4cdqi9bi1710-ruby-2.7.6/bin/ruby"
/nix/store/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3/lib/ruby/gems/2.7.0/gems/html-pipeline-2.14.3/Rakefile: interpreter directive changed from "#!/usr/bin/env rake" to "/nix/store/a98m1vmmjdid16chcclf4cdqi9bi1710-ruby-2.7.6/bin/rake"
checking for references to /build/ in /nix/store/vpxicjpw3m90ha9xhsb5p48z3d6qid55-ruby2.7.6-html-pipeline-2.14.3...