[INFO] updating cached repository https://github.com/kojole/benchmark-concurrent-io
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5670befbccd0f25b281482f1fa0009f0e321a18a
[INFO] documenting kojole/benchmark-concurrent-io against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkojole%2Fbenchmark-concurrent-io" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kojole/benchmark-concurrent-io on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kojole/benchmark-concurrent-io
[INFO] finished tweaking git repo https://github.com/kojole/benchmark-concurrent-io
[INFO] tweaked toml for git repo https://github.com/kojole/benchmark-concurrent-io written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/kojole/benchmark-concurrent-io already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb6d068b082f0671488b5bafead6fc394afd9a3079598c8717c7073ee84c9be1
[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" "bb6d068b082f0671488b5bafead6fc394afd9a3079598c8717c7073ee84c9be1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb6d068b082f0671488b5bafead6fc394afd9a3079598c8717c7073ee84c9be1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb6d068b082f0671488b5bafead6fc394afd9a3079598c8717c7073ee84c9be1", kill_on_drop: false }`
[INFO] [stdout] bb6d068b082f0671488b5bafead6fc394afd9a3079598c8717c7073ee84c9be1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e66310019b4b98f742d16c2aea47ff1d8176ebb3fbd723b88618911a6f27237
[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" "1e66310019b4b98f742d16c2aea47ff1d8176ebb3fbd723b88618911a6f27237", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking regex-syntax v0.6.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]     Checking regex v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]     Checking docopt v1.0.0
[INFO] [stderr]  Documenting conio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.34s
[INFO] running `Command { std: "docker" "inspect" "1e66310019b4b98f742d16c2aea47ff1d8176ebb3fbd723b88618911a6f27237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e66310019b4b98f742d16c2aea47ff1d8176ebb3fbd723b88618911a6f27237", kill_on_drop: false }`
[INFO] [stdout] 1e66310019b4b98f742d16c2aea47ff1d8176ebb3fbd723b88618911a6f27237