this derivation will be built:
  /nix/store/594c6gf4h6cgrgfqc9ka740sv8ycixbn-flake-inputs.drv
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: connection timeout, retrying
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: remote connection failure, retrying
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: connection timeout, retrying
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: remote connection failure, retrying
cannot build on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=23&system=aarch64-linux': error: gRPC StoreInfo on 'farm.numtide.com:50051' failed: upstream connect error or disconnect/reset before headers. reset reason: connection timeout
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: connection timeout, retrying
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: remote connection failure, retrying
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: connection timeout, retrying
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: remote connection failure, retrying
cannot build on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=22&system=aarch64-linux': error: gRPC StoreInfo on 'farm.numtide.com:50051' failed: upstream connect error or disconnect/reset before headers. reset reason: connection timeout
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: connection timeout, retrying
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: remote connection failure, retrying
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: remote connection failure, retrying
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: connection timeout, retrying
cannot build on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=21&system=aarch64-linux': error: gRPC StoreInfo on 'farm.numtide.com:50051' failed: upstream connect error or disconnect/reset before headers. reset reason: remote connection failure
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: remote connection failure, retrying
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: remote connection failure, retrying
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: remote connection failure, retrying
bld4: building 594c6gf4h6cgrgfqc9ka740sv8ycixbn-flake-inputs.drv