this derivation will be built:
  /nix/store/m7bh4s0srrw3ysd1jyw969nk74pz9kwl-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/m7bh4s0srrw3ysd1jyw969nk74pz9kwl-bcachefs-module-7.0.0-28-generic.drv'...