this derivation will be built:
  /nix/store/j13bw95g2jg96vi1xwqvh36pf4waq30x-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/j13bw95g2jg96vi1xwqvh36pf4waq30x-bcachefs-module-7.0.0-31-generic.drv'...