these 3 derivations will be built:
  /nix/store/kpgma7q0nv4pvizvz5nm0276m07c79hr-docker-image-sources.drv
  /nix/store/imgfjdawnhlv695c9gpr74yvy52pm6k0-docker-image-inputs.drv
  /nix/store/s6q1a67qnb1q40bzzpfy7kr2d97jfv5p-docker-image-inputs-hash.drv
building '/nix/store/kpgma7q0nv4pvizvz5nm0276m07c79hr-docker-image-sources.drv'
docker-image-sources> Running phase: unpackPhase
docker-image-sources> unpacking source archive /nix/store/6v3ybqawmpd4bzbrzr1gz0rsgni185ni-source
docker-image-sources> source root is source
docker-image-sources> Running phase: installPhase
building '/nix/store/imgfjdawnhlv695c9gpr74yvy52pm6k0-docker-image-inputs.drv'
docker-image-inputs> Running phase: patchPhase
docker-image-inputs> Running phase: updateAutotoolsGnuConfigScriptsPhase
docker-image-inputs> Running phase: configurePhase
docker-image-inputs> no configure script, doing nothing
docker-image-inputs> Running phase: buildPhase
docker-image-inputs> no Makefile or custom buildPhase, doing nothing
docker-image-inputs> Running phase: installPhase
docker-image-inputs> Running phase: fixupPhase
docker-image-inputs> shrinking RPATHs of ELF executables and libraries in /nix/store/mdl2kf5xpy7p7k554nfmc5nxdafy1b8l-docker-image-inputs
docker-image-inputs> checking for references to /build/ in /nix/store/mdl2kf5xpy7p7k554nfmc5nxdafy1b8l-docker-image-inputs...
docker-image-inputs> patching script interpreter paths in /nix/store/mdl2kf5xpy7p7k554nfmc5nxdafy1b8l-docker-image-inputs
building '/nix/store/s6q1a67qnb1q40bzzpfy7kr2d97jfv5p-docker-image-inputs-hash.drv'