these 2 derivations will be built:
  /nix/store/k19dakjdkgp11kz1dsk19y5zgyqjhmib-cargo-vendor-dir.drv
  /nix/store/5r1nwmpwb59x493lnv0v2h2xxhp7y0cy-fast-nix-gc-proptest-0.1.0.drv
Failed to find a machine for remote build!
derivation: k19dakjdkgp11kz1dsk19y5zgyqjhmib-cargo-vendor-dir.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: 5r1nwmpwb59x493lnv0v2h2xxhp7y0cy-fast-nix-gc-proptest-0.1.0.drv
required (system, features): (aarch64-linux, [])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])