these 7 derivations will be built:
  /nix/store/pn8vb4cpxvk46lf33pvm252skh3b597q-cargo-src-md5-0.8.1.drv
  /nix/store/y659mwgkfibnzpppkn54ny1gk6p58fzl-cargo-package-md5-0.8.1.drv
  /nix/store/p0vkhx4pzxpgzp2psdmw5ll3bgyvyvh9-vendor-registry.drv
  /nix/store/76y3ln68ddrl4bwd3ndmc6hww5qxiqjy-vendor-cargo-deps.drv
  /nix/store/idwa66p52lzv2lyw8k6ihbd767926fhl-source.drv
  /nix/store/qgna7wxnv6w3l1jyacgha7sj50d9h1y9-harmonia-deps-3.1.0.drv
  /nix/store/jxmq87y7q48l8i1rahyqbby9ya4kb9dd-harmonia-clippy-3.1.0.drv
Failed to find a machine for remote build!
derivation: idwa66p52lzv2lyw8k6ihbd767926fhl-source.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: y659mwgkfibnzpppkn54ny1gk6p58fzl-cargo-package-md5-0.8.1.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: qgna7wxnv6w3l1jyacgha7sj50d9h1y9-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: jxmq87y7q48l8i1rahyqbby9ya4kb9dd-harmonia-clippy-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], [])