this derivation will be built:
  /nix/store/s837xz126bcpiv7lrxkx60mrkwscz4ad-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/s837xz126bcpiv7lrxkx60mrkwscz4ad-bcachefs-module-7.0.0-39-generic.drv'...