these 4 derivations will be built:
  /nix/store/2wvyjqf9qghb0jdbzs11i34cpbig0w3s-vendor-registry.drv
  /nix/store/i5wnbqixpsw509k1cfby49z16m3l3b65-vendor-cargo-deps.drv
  /nix/store/46c07f296p26f9mdvpb97s708zsjfb58-harmonia-deps-3.1.0.drv
  /nix/store/lyk0gd8asmb5p31rbpdrwicqlzn8qy68-harmonia-llvm-cov-3.1.0.drv
Failed to find a machine for remote build!
derivation: 46c07f296p26f9mdvpb97s708zsjfb58-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: lyk0gd8asmb5p31rbpdrwicqlzn8qy68-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], [])