these 5 derivations will be built:
  /nix/store/8rlr0z0k3q6kfl2nzi7gw41ym6pdczgy-vendor-registry.drv
  /nix/store/7qqkzxvbkvl5182mzrb2nw6f5f26x0xc-vendor-cargo-deps.drv
  /nix/store/g4w4jyn4sn58yx58r1sra9xdzhpb65lh-source.drv
  /nix/store/w2id9r73c5l3d86cwbwsv1ngys44411q-harmonia-deps-3.1.0.drv
  /nix/store/pzivcaggvaq8mpdbfkak4xln2l1fisy6-harmonia-llvm-cov-3.1.0.drv
Failed to find a machine for remote build!
derivation: w2id9r73c5l3d86cwbwsv1ngys44411q-harmonia-deps-3.1.0.drv
required (system, features): (aarch64-linux, [])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])
Failed to find a machine for remote build!
derivation: pzivcaggvaq8mpdbfkak4xln2l1fisy6-harmonia-llvm-cov-3.1.0.drv
required (system, features): (aarch64-linux, [])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])