this derivation will be built:
  /nix/store/r1az91dpi8xjyqq1mnffr42l1479w6qc-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/r1az91dpi8xjyqq1mnffr42l1479w6qc-bcachefs-module-7.0.0-31-generic.drv'...