[INFO] cloning 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" "clone" "--bare" "https://github.com/kojole/benchmark-concurrent-io" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkojole%2Fbenchmark-concurrent-io", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkojole%2Fbenchmark-concurrent-io'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5670befbccd0f25b281482f1fa0009f0e321a18a
[INFO] documenting kojole/benchmark-concurrent-io against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkojole%2Fbenchmark-concurrent-io" "/workspace/builds/worker-38/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-38/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kojole/benchmark-concurrent-io on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-38/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" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3dc2adf7d2ed1eaf03063158f05e84a495420da3ea37a2fc860b2bdec50c90cd
[INFO] running `Command { std: "docker" "start" "-a" "3dc2adf7d2ed1eaf03063158f05e84a495420da3ea37a2fc860b2bdec50c90cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3dc2adf7d2ed1eaf03063158f05e84a495420da3ea37a2fc860b2bdec50c90cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dc2adf7d2ed1eaf03063158f05e84a495420da3ea37a2fc860b2bdec50c90cd", kill_on_drop: false }`
[INFO] [stdout] 3dc2adf7d2ed1eaf03063158f05e84a495420da3ea37a2fc860b2bdec50c90cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1c0f8cb4f70dc8d5befe1e63e710c90a8ffd3be84ddd181a2fe7c9d10e472c5
[INFO] running `Command { std: "docker" "start" "-a" "f1c0f8cb4f70dc8d5befe1e63e710c90a8ffd3be84ddd181a2fe7c9d10e472c5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.6.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]    Compiling syn v0.14.2
[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 9.58s
[INFO] running `Command { std: "docker" "inspect" "f1c0f8cb4f70dc8d5befe1e63e710c90a8ffd3be84ddd181a2fe7c9d10e472c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1c0f8cb4f70dc8d5befe1e63e710c90a8ffd3be84ddd181a2fe7c9d10e472c5", kill_on_drop: false }`
[INFO] [stdout] f1c0f8cb4f70dc8d5befe1e63e710c90a8ffd3be84ddd181a2fe7c9d10e472c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 3c1cebf40b2b8fcf2df6e01e3de19a247eb5b97e6b32ed7f22055bc1898a1e68
[INFO] running `Command { std: "docker" "start" "-a" "3c1cebf40b2b8fcf2df6e01e3de19a247eb5b97e6b32ed7f22055bc1898a1e68", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]     Checking aho-corasick v0.6.4
[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 9.59s
[INFO] running `Command { std: "docker" "inspect" "3c1cebf40b2b8fcf2df6e01e3de19a247eb5b97e6b32ed7f22055bc1898a1e68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c1cebf40b2b8fcf2df6e01e3de19a247eb5b97e6b32ed7f22055bc1898a1e68", kill_on_drop: false }`
[INFO] [stdout] 3c1cebf40b2b8fcf2df6e01e3de19a247eb5b97e6b32ed7f22055bc1898a1e68