these 7 derivations will be built:
  /nix/store/aza8cmhbsximz05z42jd4f4ii90p6spz-source.drv
  /nix/store/ga0a5l6p9ybbi8yyfs11xwblnw143z7s-cargo-src-syn-3.0.4.drv
  /nix/store/c98h4f0hsi46938d5n7frclyni48yasq-cargo-package-syn-3.0.4.drv
  /nix/store/fz4bb6j7nnxj07fzscwkgnq6qrwprab5-vendor-registry.drv
  /nix/store/ka11cj8d2f50iizblgi36j573vxd4qs7-vendor-cargo-deps.drv
  /nix/store/vs61vymilmn3azx3qsgz6jq27m3vbyxs-harmonia-deps-3.2.0.drv
  /nix/store/ck88cfkp3r1f5sfgk1nps9ibxf0chvsp-harmonia-llvm-cov-3.2.0.drv
Failed to find a machine for remote build!
derivation: vs61vymilmn3azx3qsgz6jq27m3vbyxs-harmonia-deps-3.2.0.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: ck88cfkp3r1f5sfgk1nps9ibxf0chvsp-harmonia-llvm-cov-3.2.0.drv
required (system, features): (aarch64-linux, [])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])