these 5 derivations will be built:
  /nix/store/ld1vikx83bdi5wffc4gvr74z67kqb79p-source.drv
  /nix/store/zml5bcl1xi55pcdn7ybkh0h86shjnphh-omp-18.12.5-cargo-vendor-vendor-staging.drv
  /nix/store/fqzkjygx4zv5h7j05p26qms4fgsnz0ci-omp-18.12.5-cargo-vendor-vendor.drv
  /nix/store/63yvwzpm5lw7jwkzsm2l79nffl377lsc-omp-18.12.5.drv
  /nix/store/z8gz5hq2pv1ny27v2fi80z7240bighxk-check-omp.drv
farm.numtide.com:50051: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.2:50051: connection attempt timed out before receiving SETTINGS frame, retrying