this derivation will be built:
  /nix/store/flnz28b739dg3fblf12hw5q26wwwfhd1-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/flnz28b739dg3fblf12hw5q26wwwfhd1-bcachefs-module-7.0.0-31-generic.drv'...