[INFO] fetching crate merkle_sigs 1.7.0...
[INFO] checking merkle_sigs-1.7.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate merkle_sigs 1.7.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate merkle_sigs 1.7.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merkle_sigs 1.7.0
[INFO] finished tweaking crates.io crate merkle_sigs 1.7.0
[INFO] tweaked toml for crates.io crate merkle_sigs 1.7.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47a1edb5435e785c605baa650746d383c28d602d96849e201c678c7c2d79bd3d
[INFO] running `Command { std: "docker" "start" "-a" "47a1edb5435e785c605baa650746d383c28d602d96849e201c678c7c2d79bd3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47a1edb5435e785c605baa650746d383c28d602d96849e201c678c7c2d79bd3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47a1edb5435e785c605baa650746d383c28d602d96849e201c678c7c2d79bd3d", kill_on_drop: false }`
[INFO] [stdout] 47a1edb5435e785c605baa650746d383c28d602d96849e201c678c7c2d79bd3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 780f2f57100ee62bd3e6416b6339ec7daf63d84d68f9c4eddfe3dc50c5f9965f
[INFO] running `Command { std: "docker" "start" "-a" "780f2f57100ee62bd3e6416b6339ec7daf63d84d68f9c4eddfe3dc50c5f9965f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling protobuf v2.25.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling protoc v2.25.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]     Checking lamport_sigs v0.7.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling protobuf-codegen v2.25.1
[INFO] [stderr]    Compiling protoc-rust v2.25.1
[INFO] [stderr]    Compiling merkle v1.11.0
[INFO] [stderr] error: failed to run custom build command for `merkle v1.11.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/merkle-a020df06955cdfc3/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Build failed because merkle.rs could not find protobuf version 3.7.1
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "780f2f57100ee62bd3e6416b6339ec7daf63d84d68f9c4eddfe3dc50c5f9965f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "780f2f57100ee62bd3e6416b6339ec7daf63d84d68f9c4eddfe3dc50c5f9965f", kill_on_drop: false }`
[INFO] [stdout] 780f2f57100ee62bd3e6416b6339ec7daf63d84d68f9c4eddfe3dc50c5f9965f