this derivation will be built:
  /nix/store/h4r92rz386xq0c6klvjvzjp1bgmp0xqj-flake-inputs.drv
building '/nix/store/h4r92rz386xq0c6klvjvzjp1bgmp0xqj-flake-inputs.drv' 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'
bld4: building h4r92rz386xq0c6klvjvzjp1bgmp0xqj-flake-inputs.drv
error: niks3 push: gave up waiting for niks3 push, retrying elsewhere
upstream connect error or disconnect/reset before headers. reset reason: remote connection failure, retrying elsewhere
upstream connect error or disconnect/reset before headers. reset reason: remote connection failure, retrying elsewhere
upstream connect error or disconnect/reset before headers. reset reason: connection timeout, retrying elsewhere
upstream connect error or disconnect/reset before headers. reset reason: remote connection failure, retrying elsewhere
error: gRPC BuildDerivation 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.
error: Cannot build '/nix/store/h4r92rz386xq0c6klvjvzjp1bgmp0xqj-flake-inputs.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/69h3pnvygsy2zn69lr0vafw8ic8ym70n-flake-inputs