these 2 derivations will be built:
  /nix/store/8j8k0mfnkkw1c7yaas6qxpnq311159rf-source.drv
  /nix/store/hfwfq4dkfalic69vxx377dlz4473p0vm-nix-shell.drv
error: build of '/nix/store/p4w9gmnr31x34ka216c9ygbj1bjizzrj-source.drv' on 'ssh-ng://customer@mac02' failed: hash mismatch in fixed-output derivation '/nix/store/p4w9gmnr31x34ka216c9ygbj1bjizzrj-source.drv':
         specified: sha256-fcGVoV0Vd8TrYDE730W9GBHcVjTXB3oGqWzJRErBBzk=
            got:    sha256-uWORGGTafVZaTQV6a9ryETtYba0XKRpgti/WPJpIM6Q=
error: Cannot build '/nix/store/p4w9gmnr31x34ka216c9ygbj1bjizzrj-source.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/zkja64w4chzqiqg92ziq0ly7idhcjch7-source
error: build of resolved derivation '/nix/store/p4w9gmnr31x34ka216c9ygbj1bjizzrj-source.drv' failed
error: Cannot build '/nix/store/hfwfq4dkfalic69vxx377dlz4473p0vm-nix-shell.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/h7931cz6a7dzzv0if4bd2dr5ifl90n9w-nix-shell