this derivation will be built:
  /nix/store/1fs02kdrbxbmfr153fz1xj77zvx85qpf-nixfmt-check.drv
nixfmt-check> Running phase: unpackPhase
nixfmt-check> unpacking source archive /nix/store/q4mzacbz5xvmlbk404kwvv9rs4ivs8lc-source
nixfmt-check> source root is source
nixfmt-check> Running phase: patchPhase
nixfmt-check> Running phase: updateAutotoolsGnuConfigScriptsPhase
nixfmt-check> Running phase: configurePhase
nixfmt-check> no configure script, doing nothing
nixfmt-check> Running phase: buildPhase
nixfmt-check> Running phase: installPhase
nixfmt-check> Running phase: fixupPhase
nixfmt-check> shrinking RPATHs of ELF executables and libraries in /nix/store/mla6bk1c0spdq60735rjywq7w2f7vbyc-nixfmt-check
nixfmt-check> checking for references to /build/ in /nix/store/mla6bk1c0spdq60735rjywq7w2f7vbyc-nixfmt-check...
nixfmt-check> patching script interpreter paths in /nix/store/mla6bk1c0spdq60735rjywq7w2f7vbyc-nixfmt-check