this derivation will be built:
  /nix/store/mvr9vm20mpq4limn2swcpf4f1biaiyy2-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/mvr9vm20mpq4limn2swcpf4f1biaiyy2-bcachefs-module-7.0.0-31-generic.drv'...