this derivation will be built:
  /nix/store/a1msrm4q0vmx0k3by08amxrdzkq6nw63-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/a1msrm4q0vmx0k3by08amxrdzkq6nw63-bcachefs-module-7.0.0-39-generic.drv'...