these 3 derivations will be built:
  /nix/store/npv34dq7j4428xdkh6h6dzvh53g8q0hz-tinc-tincd-c-1.1pre18.drv
  /nix/store/vr20755054801drnfmidssqvc85yri66-tinc-sptps-test-c-1.1pre18.drv
  /nix/store/mmm6q2qx8ya6sk7skfcv3l46jcab97nf-tincd-test-0.1.0.drv
these 2 paths will be fetched (103.1 KiB download, 243.3 KiB unpacked):
  /nix/store/cnw0cb7fllhah1pmhcpg0zsndfmh2i3b-iperf-3.21-dev
  /nix/store/m8by8fagpiv88bvm4v3245j1yzizqnxm-miniupnpd-2.3.10
Failed to find a machine for remote build!
derivation: vr20755054801drnfmidssqvc85yri66-tinc-sptps-test-c-1.1pre18.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: npv34dq7j4428xdkh6h6dzvh53g8q0hz-tinc-tincd-c-1.1pre18.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: mmm6q2qx8ya6sk7skfcv3l46jcab97nf-tincd-test-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], [])