these 7 derivations will be built:
  /nix/store/s2ch525dwzwyazfchbpxn7zl7daq8h34-cargo-src-memchr-2.8.3.drv
  /nix/store/ym9drqki4z611dhp7wrnib0m0cf68sd9-cargo-package-memchr-2.8.3.drv
  /nix/store/lix4jkfg1z6wrhh1gp9dbww6sx8jbiij-vendor-registry.drv
  /nix/store/59pv61l351jay2j73b8swvgd5nyxssnx-vendor-cargo-deps.drv
  /nix/store/jkjasbv265w14cs8ga5q719xljb0bqp3-source.drv
  /nix/store/39pxzkgiifnc4hxmdha175hb2z2pl7yb-harmonia-deps-3.1.0.drv
  /nix/store/mmlh9bkgd6rph9w60wjr7crdxvj9n96a-harmonia-llvm-cov-3.1.0.drv
Failed to find a machine for remote build!
derivation: 39pxzkgiifnc4hxmdha175hb2z2pl7yb-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: mmlh9bkgd6rph9w60wjr7crdxvj9n96a-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], [])