these 3 derivations will be built:
  /nix/store/v3w3wn3r8cr21igjzlx972hj2zys7af4-docker-image-sources.drv
  /nix/store/j2qv61gbf9brlg3krqnq4fyyni58i8hd-docker-image-inputs.drv
  /nix/store/lnj0m9gbyvbw5hj8wiqpfrjgp7sz60ar-docker-image-inputs-hash.drv
building '/nix/store/v3w3wn3r8cr21igjzlx972hj2zys7af4-docker-image-sources.drv'
docker-image-sources> Running phase: unpackPhase
docker-image-sources> unpacking source archive /nix/store/6sjrihgcwmggcrns2v4bdnm9vzxvmmbz-source
docker-image-sources> source root is source
docker-image-sources> Running phase: installPhase
building '/nix/store/j2qv61gbf9brlg3krqnq4fyyni58i8hd-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/3x0kljrydkjml6x1dkqwdxy2sqw7ysjz-docker-image-inputs
docker-image-inputs> checking for references to /build/ in /nix/store/3x0kljrydkjml6x1dkqwdxy2sqw7ysjz-docker-image-inputs...
docker-image-inputs> patching script interpreter paths in /nix/store/3x0kljrydkjml6x1dkqwdxy2sqw7ysjz-docker-image-inputs
building '/nix/store/lnj0m9gbyvbw5hj8wiqpfrjgp7sz60ar-docker-image-inputs-hash.drv'