this derivation will be built:
  /nix/store/h9xyl45q4d5grnqzg1zzkb8wdfax4h2m-spec-fantomas.drv
building '/nix/store/h9xyl45q4d5grnqzg1zzkb8wdfax4h2m-spec-fantomas.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=20&system=aarch64-linux'
building '/nix/store/h9xyl45q4d5grnqzg1zzkb8wdfax4h2m-spec-fantomas.drv' on farm.numtide.com:50051
spec-fantomas> elastic-arm-0b1d6a93: building h9xyl45q4d5grnqzg1zzkb8wdfax4h2m-spec-fantomas.drv
spec-fantomas>                                                              
spec-fantomas>   Formatted │ 2 │ Ignored │ 0 │ Unchanged │ 0 │ Errored │ 0  
spec-fantomas>                                                              
spec-fantomas> a.fs was unchanged.
spec-fantomas> Failed to format file: a.fs : Could not parse file.
spec-fantomas>                                                              
spec-fantomas>   Formatted │ 0 │ Ignored │ 0 │ Unchanged │ 1 │ Errored │ 1  
spec-fantomas>                                                              
spec-fantomas> Failed to format file: invalid/a.fs : Could not parse file.

upload niks3: ok