these 5 derivations will be built:
  /nix/store/ih4m7hsn9h4sn8pd3v8kg7r1brj1abfq-clan-runtime.drv
  /nix/store/6185yh5qap312c5alaggzc3cyvj7i8qj-clan-cli-source.drv
  /nix/store/l6m383l8bvicrcdik4fgaairrk2zscmg-clan-cli.drv
  /nix/store/xq7gyx0zx324agkv6c213hsyjdkvr19b-closure-info.drv
  /nix/store/bl5qzbasv4ilcplcdl6gcxnli3n7x85p-check-vars.drv
building '/nix/store/xq7gyx0zx324agkv6c213hsyjdkvr19b-closure-info.drv' on 'ssh-ng://builder@build01.clan.lol'
error: path '/nix/store/s0fpxz3rvfip9bc50wfmwpigxiyl6nkg-source' is not valid
error: Cannot build '/nix/store/xq7gyx0zx324agkv6c213hsyjdkvr19b-closure-info.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/lxw6sm4wwpx1285jzds7n3asxsxfd92c-closure-info
error: Cannot build '/nix/store/bl5qzbasv4ilcplcdl6gcxnli3n7x85p-check-vars.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/qnsxvqc8x5qdwrq4fxm24qxazqyx9c3x-check-vars