this derivation will be built:
  /nix/store/y2amk7wip690hzncy16m49bjf8n4iz4f-check-formatter.drv
building '/nix/store/y2amk7wip690hzncy16m49bjf8n4iz4f-check-formatter.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=23&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/y2amk7wip690hzncy16m49bjf8n4iz4f-check-formatter.drv' on farm.numtide.com:50051
check-formatter> mac02: building y2amk7wip690hzncy16m49bjf8n4iz4f-check-formatter.drv