these 3 derivations will be built:
  /nix/store/2jgcwsp6873gf247ll0az7pj7pa2pvyr-docker-image-sources.drv
  /nix/store/5h19x8p2bjlx5lv161z314hkv2xwc655-docker-image-inputs.drv
  /nix/store/7ws1r9zd7hhikr711lf2yh6k1695xg4p-docker-image-inputs-hash.drv
building '/nix/store/2jgcwsp6873gf247ll0az7pj7pa2pvyr-docker-image-sources.drv'
docker-image-sources> Running phase: unpackPhase
docker-image-sources> unpacking source archive /nix/store/l07vgj0p925fk74gjb0xf5yl7hgj7mfb-source
docker-image-sources> source root is source
docker-image-sources> Running phase: installPhase
building '/nix/store/5h19x8p2bjlx5lv161z314hkv2xwc655-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/n47lg8zl1wd9b7fasxhlg7pmrw8x11hp-docker-image-inputs
docker-image-inputs> checking for references to /build/ in /nix/store/n47lg8zl1wd9b7fasxhlg7pmrw8x11hp-docker-image-inputs...
docker-image-inputs> patching script interpreter paths in /nix/store/n47lg8zl1wd9b7fasxhlg7pmrw8x11hp-docker-image-inputs
building '/nix/store/7ws1r9zd7hhikr711lf2yh6k1695xg4p-docker-image-inputs-hash.drv'