these 5 derivations will be built:
  /nix/store/749i56wxv1yd9k2mv8vxsfv79kkhzlsn-source.drv
  /nix/store/i5qqi6l221q43m4zw4wxlnm9x5jac8j8-omp-18.15.0-cargo-vendor-vendor-staging.drv
  /nix/store/w5ck4rdjx4jc5agdfgivq965d1bxzzyk-omp-18.15.0-cargo-vendor-vendor.drv
  /nix/store/0pcrw1618dwzcsdq1kyswvqphlch261i-omp-18.15.0.drv
  /nix/store/4l25jfsikh5nqipwnmjxrff41hplkfqc-check-omp.drv
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
cannot build on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token': error: gRPC StoreInfo on 'farm.numtide.com:50051' failed: no healthy upstream
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
cannot build on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token': error: gRPC StoreInfo on 'farm.numtide.com:50051' failed: no healthy upstream
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
cannot build on 'grpc://farm.numtide.com:50051?connect-timeout=23&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token': error: gRPC StoreInfo on 'farm.numtide.com:50051' failed: no healthy upstream
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
cannot build on 'grpc://farm.numtide.com:50051?connect-timeout=22&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token': error: gRPC StoreInfo on 'farm.numtide.com:50051' failed: no healthy upstream
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
Failed to find a machine for remote build!
derivation: w5ck4rdjx4jc5agdfgivq965d1bxzzyk-omp-18.15.0-cargo-vendor-vendor.drv
required (system, features): (aarch64-linux, [])
12 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin], 8, [apple-virt, big-parallel, nixos-test, recursive-nix], [])
([aarch64-darwin], 8, [apple-virt, big-parallel, nixos-test, recursive-nix], [])
([aarch64-darwin], 8, [apple-virt, big-parallel, nixos-test, recursive-nix], [])
([aarch64-darwin], 8, [apple-virt, big-parallel, nixos-test, recursive-nix], [])
([aarch64-linux], 8, [big-parallel, kvm, nixos-test, recursive-nix, uid-range], [])
([aarch64-linux], 8, [big-parallel, kvm, nixos-test, recursive-nix, uid-range], [])
([aarch64-linux], 8, [big-parallel, kvm, nixos-test, recursive-nix, uid-range], [])
([aarch64-linux], 8, [big-parallel, kvm, nixos-test, recursive-nix, uid-range], [])
([x86_64-darwin], 8, [big-parallel, nixos-test, recursive-nix], [])
([x86_64-darwin], 8, [big-parallel, nixos-test, recursive-nix], [])
([x86_64-darwin], 8, [big-parallel, nixos-test, recursive-nix], [])
([x86_64-darwin], 8, [big-parallel, nixos-test, recursive-nix], [])
error: Cannot build '/nix/store/w5ck4rdjx4jc5agdfgivq965d1bxzzyk-omp-18.15.0-cargo-vendor-vendor.drv'.
       Reason: platform mismatch
       Required system: 'aarch64-linux'
       Current system: 'x86_64-linux'
error: Cannot build '/nix/store/0pcrw1618dwzcsdq1kyswvqphlch261i-omp-18.15.0.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/asvjhkxg5qkq080b8hq018hbhqi9k2n1-omp-18.15.0
error: Cannot build '/nix/store/4l25jfsikh5nqipwnmjxrff41hplkfqc-check-omp.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/szyy7gyj1djri6hcgg6k93rgsgw97llg-check-omp