this derivation will be built:
  /nix/store/ka7a0bcrs49wv93nxrll91a0izn602q2-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/ka7a0bcrs49wv93nxrll91a0izn602q2-bcachefs-module-7.0.0-39-generic.drv'...