this derivation will be built:
  /nix/store/99agk3k9kr957ln4qa7y93rvq22z7h3j-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/99agk3k9kr957ln4qa7y93rvq22z7h3j-bcachefs-module-7.0.0-39-generic.drv'...