[INFO] cloning repository https://github.com/remi-blaise/Benchmark-Study-C-Go-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/remi-blaise/Benchmark-Study-C-Go-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremi-blaise%2FBenchmark-Study-C-Go-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremi-blaise%2FBenchmark-Study-C-Go-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3df39414f94e233cc3a2f3afcefa02dde5aeaf1
[INFO] documenting remi-blaise/Benchmark-Study-C-Go-Rust against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremi-blaise%2FBenchmark-Study-C-Go-Rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/remi-blaise/Benchmark-Study-C-Go-Rust on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/remi-blaise/Benchmark-Study-C-Go-Rust
[INFO] finished tweaking git repo https://github.com/remi-blaise/Benchmark-Study-C-Go-Rust
[INFO] tweaked toml for git repo https://github.com/remi-blaise/Benchmark-Study-C-Go-Rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/remi-blaise/Benchmark-Study-C-Go-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quick-xml v0.18.1
[INFO] [stderr]   Downloaded hashers v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d58ce7f34fb6facda967ebc62b247d813f0ff56a63509ffb8308c9d3e212024
[INFO] running `Command { std: "docker" "start" "-a" "6d58ce7f34fb6facda967ebc62b247d813f0ff56a63509ffb8308c9d3e212024", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d58ce7f34fb6facda967ebc62b247d813f0ff56a63509ffb8308c9d3e212024", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d58ce7f34fb6facda967ebc62b247d813f0ff56a63509ffb8308c9d3e212024", kill_on_drop: false }`
[INFO] [stdout] 6d58ce7f34fb6facda967ebc62b247d813f0ff56a63509ffb8308c9d3e212024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4dfa6a777f76df6424ab94e22a4e9dcdcc6bc39d5daacf158d68558acf8a9ade
[INFO] running `Command { std: "docker" "start" "-a" "4dfa6a777f76df6424ab94e22a4e9dcdcc6bc39d5daacf158d68558acf8a9ade", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking memrange v0.1.3
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking num-iter v0.1.40
[INFO] [stderr]     Checking hashers v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling shared_memory_derive v0.10.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking theban_interval_tree v0.7.1
[INFO] [stderr]     Checking shared_memory v0.10.0
[INFO] [stderr]     Checking serde v1.0.106
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking quick-xml v0.18.1
[INFO] [stderr]  Documenting bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `bench`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name hashing_2 bench/hashing/2.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-47362992f61bf1d6.rmeta --extern hashers=/opt/rustwide/target/debug/deps/libhashers-dfe895136ea7d847.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-922c42a1169f50b3.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-c8b01582a54edc67.rmeta --extern quick_xml=/opt/rustwide/target/debug/deps/libquick_xml-28277123abd64c9c.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-925085230df088b8.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-035677dcfc54a6f6.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-f98656827f9024a4.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-c2196568b6a69f24.rmeta --extern shared_memory=/opt/rustwide/target/debug/deps/libshared_memory-4e14294a9395171b.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4dfa6a777f76df6424ab94e22a4e9dcdcc6bc39d5daacf158d68558acf8a9ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dfa6a777f76df6424ab94e22a4e9dcdcc6bc39d5daacf158d68558acf8a9ade", kill_on_drop: false }`
[INFO] [stdout] 4dfa6a777f76df6424ab94e22a4e9dcdcc6bc39d5daacf158d68558acf8a9ade
