[INFO] fetching crate merkle_sigs 1.7.0...
[INFO] checking merkle_sigs-1.7.0 against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] extracting crate merkle_sigs 1.7.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate merkle_sigs 1.7.0 on toolchain 82acd1d76add2232e19c1f0feb250d2a19ec6efe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "read-manifest" "--manifest-path" "Cargo.toml", 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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lamport_sigs v0.7.0
[INFO] [stderr]   Downloaded merkle v1.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f9e64cc171cecf26f5613b8a5455f592c42d3fb8279164e9ef5753ac431fa82
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4f9e64cc171cecf26f5613b8a5455f592c42d3fb8279164e9ef5753ac431fa82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f9e64cc171cecf26f5613b8a5455f592c42d3fb8279164e9ef5753ac431fa82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f9e64cc171cecf26f5613b8a5455f592c42d3fb8279164e9ef5753ac431fa82", kill_on_drop: false }`
[INFO] [stdout] 4f9e64cc171cecf26f5613b8a5455f592c42d3fb8279164e9ef5753ac431fa82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4e818dc78f4cc51005d240e9a02ecd27a3851d544119358e02a5d7b3a9d2c98
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b4e818dc78f4cc51005d240e9a02ecd27a3851d544119358e02a5d7b3a9d2c98", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling syn v1.0.59
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling protobuf v2.20.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling rand_core v0.6.1
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.2
[INFO] [stderr]     Checking lamport_sigs v0.7.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling protobuf-codegen v2.20.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling which v4.0.2
[INFO] [stderr]    Compiling protoc v2.20.0
[INFO] [stderr]    Compiling protoc-rust v2.20.0
[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-9fabf846861585b9/build-script-build` (exit code: 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" "b4e818dc78f4cc51005d240e9a02ecd27a3851d544119358e02a5d7b3a9d2c98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4e818dc78f4cc51005d240e9a02ecd27a3851d544119358e02a5d7b3a9d2c98", kill_on_drop: false }`
[INFO] [stdout] b4e818dc78f4cc51005d240e9a02ecd27a3851d544119358e02a5d7b3a9d2c98