[INFO] cloning repository https://github.com/not-for-me/hang-monitor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/not-for-me/hang-monitor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnot-for-me%2Fhang-monitor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnot-for-me%2Fhang-monitor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d59403b89f347288a9cd44ffdc4241260bafacd2
[INFO] documenting not-for-me/hang-monitor against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnot-for-me%2Fhang-monitor" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/not-for-me/hang-monitor on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/not-for-me/hang-monitor
[INFO] finished tweaking git repo https://github.com/not-for-me/hang-monitor
[INFO] tweaked toml for git repo https://github.com/not-for-me/hang-monitor written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/not-for-me/hang-monitor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arc-swap v0.3.6
[INFO] [stderr]   Downloaded signal-hook v0.1.6
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b81d13c5fb4bd2ae37e20cf06ef2dd48950090edaaf98e87db6ce0ca1134f33
[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" "5b81d13c5fb4bd2ae37e20cf06ef2dd48950090edaaf98e87db6ce0ca1134f33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b81d13c5fb4bd2ae37e20cf06ef2dd48950090edaaf98e87db6ce0ca1134f33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b81d13c5fb4bd2ae37e20cf06ef2dd48950090edaaf98e87db6ce0ca1134f33", kill_on_drop: false }`
[INFO] [stdout] 5b81d13c5fb4bd2ae37e20cf06ef2dd48950090edaaf98e87db6ce0ca1134f33
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f64b0e5b5c2987ee852aed0b79b5d046ff04725e0735caf95c88f691246e158
[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" "9f64b0e5b5c2987ee852aed0b79b5d046ff04725e0735caf95c88f691246e158", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking arc-swap v0.3.6
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking signal-hook v0.1.6
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]  Documenting hang-monitor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0517]: attribute should be applied to enum
[INFO] [stdout]   --> src/lib.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |   #[repr(u128)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 30 | / pub fn run(conf: Config) {
[INFO] [stdout] 31 | |     let mut file = match OpenOptions::new().append(true).create(true).open(conf.log_path) {
[INFO] [stdout] 32 | |         Err(why) => panic!("couldn't open file, reason: {}", why.description()),
[INFO] [stdout] 33 | |         Ok(file) => file,
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |     }
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_- not an enum
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0517`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `hang-monitor`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name hang_monitor src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-86fb1d0d254e7c0f.rmeta --extern signal_hook=/opt/rustwide/target/debug/deps/libsignal_hook-b0e575fd3702adfd.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "9f64b0e5b5c2987ee852aed0b79b5d046ff04725e0735caf95c88f691246e158", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f64b0e5b5c2987ee852aed0b79b5d046ff04725e0735caf95c88f691246e158", kill_on_drop: false }`
[INFO] [stdout] 9f64b0e5b5c2987ee852aed0b79b5d046ff04725e0735caf95c88f691246e158