these 5 derivations will be built:
  /nix/store/5hvj44ic567z060ka7wvrz01wzy431p1-Cargo.toml.drv
  /nix/store/x136z5bjknvwz3p2l9nv6bh2w7r52q2q-Cargo.toml.drv
  /nix/store/mhq3mlgndwic9j828rp35b6k3w47yxp8-source.drv
  /nix/store/2rb2ac091wrf3igp7mvvy2y6d7h86zb6-harmonia-deps-3.2.0.drv
  /nix/store/4s7j28a9ig0gdna8ildc2kb9waa93zc3-harmonia-clippy-3.2.0.drv
Failed to find a machine for remote build!
derivation: 5hvj44ic567z060ka7wvrz01wzy431p1-Cargo.toml.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: 4s7j28a9ig0gdna8ildc2kb9waa93zc3-harmonia-clippy-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], [])