these 3 derivations will be built:
  /nix/store/myk0953cyscgmw92vbnqbg06h0nd4wkd-docker-image-sources.drv
  /nix/store/6w6xza5kdnafrlb4qkip78h0w3bapzsw-docker-image-inputs.drv
  /nix/store/81a9pv4dnpalcr18d0qyplkinbq979zc-docker-image-inputs-hash.drv
building '/nix/store/myk0953cyscgmw92vbnqbg06h0nd4wkd-docker-image-sources.drv'
docker-image-sources> Running phase: unpackPhase
docker-image-sources> unpacking source archive /nix/store/va25czbdpi5cdykw753g2r6bgfik2awm-source
docker-image-sources> source root is source
docker-image-sources> Running phase: installPhase
building '/nix/store/6w6xza5kdnafrlb4qkip78h0w3bapzsw-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/av50nmp7j0zs8yzkyykhzr0ccwiscvis-docker-image-inputs
docker-image-inputs> checking for references to /build/ in /nix/store/av50nmp7j0zs8yzkyykhzr0ccwiscvis-docker-image-inputs...
docker-image-inputs> patching script interpreter paths in /nix/store/av50nmp7j0zs8yzkyykhzr0ccwiscvis-docker-image-inputs
building '/nix/store/81a9pv4dnpalcr18d0qyplkinbq979zc-docker-image-inputs-hash.drv'