these 2 derivations will be built:
  /nix/store/l8a8w3bfcz0ybkfd5f4z1668gja678s5-hol-guard-3.0.189.tar.gz.drv
  /nix/store/8nq7ccd50ifli0pp7a967praqg7npz0a-hol-guard-3.0.189.drv
bld3: error: Cannot build '/nix/store/7qhxfqhzp0rqibak39ipqfcqqpf6llw2-hol-guard-3.0.189.tar.gz.drv'., retrying elsewhere
bld4: error: Cannot build '/nix/store/7qhxfqhzp0rqibak39ipqfcqqpf6llw2-hol-guard-3.0.189.tar.gz.drv'., retrying elsewhere
bld3: error: Cannot build '/nix/store/7qhxfqhzp0rqibak39ipqfcqqpf6llw2-hol-guard-3.0.189.tar.gz.drv'., retrying elsewhere
bld3: error: Cannot build '/nix/store/7qhxfqhzp0rqibak39ipqfcqqpf6llw2-hol-guard-3.0.189.tar.gz.drv'., retrying elsewhere
bld3: error: Cannot build '/nix/store/7qhxfqhzp0rqibak39ipqfcqqpf6llw2-hol-guard-3.0.189.tar.gz.drv'., retrying elsewhere
error: gRPC BuildDerivation on 'farm.numtide.com:50051' failed: bld4: error: Cannot build '/nix/store/7qhxfqhzp0rqibak39ipqfcqqpf6llw2-hol-guard-3.0.189.tar.gz.drv'.
              Reason: builder failed with exit code 1.
              Output paths:
                /nix/store/xa21p4zvrjy8q5z639xgy9azcvpdw4yq-hol-guard-3.0.189.tar.gz
              Last 25 log lines:
              > Warning: Problem (retrying all errors). Retrying in 2 seconds. 2 retries left.
              >
              >   0      0   0      0   0      0      0      0                              0
              > 100    122 100    122   0      0  19526      0                              0
              > 100    122 100    122   0      0  19300      0                              0
              >
              >   0      0   0      0   0      0      0      0                              0
              > 100    280 100    280   0      0  22227      0                              0
              > 100    280 100    280   0      0  22136      0                              0
              >
              >   0      0   0      0   0      0      0      0                              0
              > curl: (22) The requested URL returned error: 404
              > Warning: Problem (retrying all errors). Retrying in 4 seconds. 1 retry left.
              >
              >   0      0   0      0   0      0      0      0                              0
              > 100    122 100    122   0      0  19319      0                              0
              > 100    122 100    122   0      0  19122      0                              0
              >
              >   0      0   0      0   0      0      0      0                              0
              > 100    280 100    280   0      0  21957      0                              0
              > 100    280 100    280   0      0  21851      0                              0
              >
              >   0      0   0      0   0      0      0      0                              0
              > curl: (22) The requested URL returned error: 404
              > error: cannot download hol-guard-3.0.189.tar.gz from any mirror
              For full logs, run:
                nix log /nix/store/7qhxfqhzp0rqibak39ipqfcqqpf6llw2-hol-guard-3.0.189.tar.gz.drv
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
error: Cannot build '/nix/store/7qhxfqhzp0rqibak39ipqfcqqpf6llw2-hol-guard-3.0.189.tar.gz.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/xa21p4zvrjy8q5z639xgy9azcvpdw4yq-hol-guard-3.0.189.tar.gz
error: build of resolved derivation '/nix/store/7qhxfqhzp0rqibak39ipqfcqqpf6llw2-hol-guard-3.0.189.tar.gz.drv' failed
error: Cannot build '/nix/store/8nq7ccd50ifli0pp7a967praqg7npz0a-hol-guard-3.0.189.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/aqsr3054a505pkfcvpz6qdg0r2xwfg69-hol-guard-3.0.189
         /nix/store/i2633bv85pgvsrrjyd0rn63g6ga69vcx-hol-guard-3.0.189-dist