these 4 derivations will be built:
  /nix/store/f7c23vawxdjwk7f6q0jzv60rrrz1ah2g-source.drv
  /nix/store/dpw31j9zhz65f4376h87b3d8lv1k26mx-picoclaw-0.5.3-go-modules.drv
  /nix/store/5fmz7frg38v48f5yzvh3lyp0p3myhcgb-picoclaw-0.5.3.drv
  /nix/store/35cp08v89sbsiy2dr7f2xd6za88wai9k-check-picoclaw.drv
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
cannot build on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token': error: gRPC StoreInfo on 'farm.numtide.com:50051' failed: no healthy upstream
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
cannot build on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token': error: gRPC StoreInfo on 'farm.numtide.com:50051' failed: no healthy upstream
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
cannot build on 'grpc://farm.numtide.com:50051?connect-timeout=23&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token': error: gRPC StoreInfo on 'farm.numtide.com:50051' failed: no healthy upstream
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
farm.numtide.com:50051: no healthy upstream, retrying
cannot build on 'grpc://farm.numtide.com:50051?connect-timeout=22&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token': error: gRPC StoreInfo on 'farm.numtide.com:50051' failed: no healthy upstream
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
Failed to find a machine for remote build!
derivation: h6jpl5nvp7mxcfrag0nxrw4nbhlp3k46-source.drv
required (system, features): (aarch64-linux, [])
12 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin], 8, [apple-virt, big-parallel, nixos-test, recursive-nix], [])
([aarch64-darwin], 8, [apple-virt, big-parallel, nixos-test, recursive-nix], [])
([aarch64-darwin], 8, [apple-virt, big-parallel, nixos-test, recursive-nix], [])
([aarch64-darwin], 8, [apple-virt, big-parallel, nixos-test, recursive-nix], [])
([aarch64-linux], 8, [big-parallel, kvm, nixos-test, recursive-nix, uid-range], [])
([aarch64-linux], 8, [big-parallel, kvm, nixos-test, recursive-nix, uid-range], [])
([aarch64-linux], 8, [big-parallel, kvm, nixos-test, recursive-nix, uid-range], [])
([aarch64-linux], 8, [big-parallel, kvm, nixos-test, recursive-nix, uid-range], [])
([x86_64-darwin], 8, [big-parallel, nixos-test, recursive-nix], [])
([x86_64-darwin], 8, [big-parallel, nixos-test, recursive-nix], [])
([x86_64-darwin], 8, [big-parallel, nixos-test, recursive-nix], [])
([x86_64-darwin], 8, [big-parallel, nixos-test, recursive-nix], [])
error: Cannot build '/nix/store/h6jpl5nvp7mxcfrag0nxrw4nbhlp3k46-source.drv'.
       Reason: platform mismatch
       Required system: 'aarch64-linux'
       Current system: 'x86_64-linux'
error: build of resolved derivation '/nix/store/h6jpl5nvp7mxcfrag0nxrw4nbhlp3k46-source.drv' failed
error: Cannot build '/nix/store/dpw31j9zhz65f4376h87b3d8lv1k26mx-picoclaw-0.5.3-go-modules.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/399cn9jbssf1k222wx0ida7ljy2sciyv-picoclaw-0.5.3-go-modules
error: Cannot build '/nix/store/5fmz7frg38v48f5yzvh3lyp0p3myhcgb-picoclaw-0.5.3.drv'.
       Reason: 2 dependencies failed.
       Output paths:
         /nix/store/ma3zfj6yycc6zjlmd4a8z447mxnjpmhb-picoclaw-0.5.3
error: Cannot build '/nix/store/35cp08v89sbsiy2dr7f2xd6za88wai9k-check-picoclaw.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/gc244125b4x7s1w5a82ly0pzv30vv4cd-check-picoclaw