this derivation will be built:
  /nix/store/khp620k51q7nyx3964nz74y4fkhfh0b6-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/khp620k51q7nyx3964nz74y4fkhfh0b6-bcachefs-module-7.0.0-29-generic.drv'...