this derivation will be built:
  /nix/store/k8kwmcvp9mmvmq97fnyj8mgkx8225c21-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/k8kwmcvp9mmvmq97fnyj8mgkx8225c21-bcachefs-module-7.0.0-39-generic.drv'...