this derivation will be built:
  /nix/store/kl74v7zcvmab2x0whnqy8avg402qb37v-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/kl74v7zcvmab2x0whnqy8avg402qb37v-bcachefs-module-7.0.0-39-generic.drv'...