these 3 derivations will be built:
  /nix/store/fhd9ajr7nljwfhj1h9qj7lq8cvr9dm5b-docker-image-sources.drv
  /nix/store/0rkw0vkfrkdyl0066pwzvh6g8vv3d62h-docker-image-inputs.drv
  /nix/store/1791kyzpnr0sqhb68sf8n1n712kk254i-docker-image-inputs-hash.drv
building '/nix/store/fhd9ajr7nljwfhj1h9qj7lq8cvr9dm5b-docker-image-sources.drv'
docker-image-sources> Running phase: unpackPhase
docker-image-sources> unpacking source archive /nix/store/1kgis6x30nv66447vja8hwzzn39fpn0g-source
docker-image-sources> source root is source
docker-image-sources> Running phase: installPhase
building '/nix/store/0rkw0vkfrkdyl0066pwzvh6g8vv3d62h-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/3zjq6jhj9qsbiz6v5g3hbz8acf57cqwp-docker-image-inputs
docker-image-inputs> checking for references to /build/ in /nix/store/3zjq6jhj9qsbiz6v5g3hbz8acf57cqwp-docker-image-inputs...
docker-image-inputs> patching script interpreter paths in /nix/store/3zjq6jhj9qsbiz6v5g3hbz8acf57cqwp-docker-image-inputs
building '/nix/store/1791kyzpnr0sqhb68sf8n1n712kk254i-docker-image-inputs-hash.drv'