[INFO] fetching crate libnetkeeper 0.1.0...
[INFO] documenting libnetkeeper-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate libnetkeeper 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate libnetkeeper 0.1.0 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 crates.io crate libnetkeeper 0.1.0
[INFO] finished tweaking crates.io crate libnetkeeper 0.1.0
[INFO] tweaked toml for crates.io crate libnetkeeper 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 clippy_lints v0.0.160
[INFO] [stderr]   Downloaded md4 v0.4.1
[INFO] [stderr]   Downloaded clippy v0.0.160
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 4ffeeb3af66e48cf74817bd2e551ceba3da9e35ee07c34e228b892dc369d8a0a
[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" "4ffeeb3af66e48cf74817bd2e551ceba3da9e35ee07c34e228b892dc369d8a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ffeeb3af66e48cf74817bd2e551ceba3da9e35ee07c34e228b892dc369d8a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ffeeb3af66e48cf74817bd2e551ceba3da9e35ee07c34e228b892dc369d8a0a", kill_on_drop: false }`
[INFO] [stdout] 4ffeeb3af66e48cf74817bd2e551ceba3da9e35ee07c34e228b892dc369d8a0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0a9bc7d8d42b578c645ec5a2d5a891dfbb5100b78c8389fdd523b8af610b1322
[INFO] running `Command { std: "docker" "start" "-a" "0a9bc7d8d42b578c645ec5a2d5a891dfbb5100b78c8389fdd523b8af610b1322", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking byte-tools v0.1.3
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking generic-array v0.6.0
[INFO] [stderr]     Checking digest-buffer v0.2.0
[INFO] [stderr]     Checking digest v0.4.0
[INFO] [stderr]     Checking md4 v0.4.1
[INFO] [stderr]  Documenting libnetkeeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/singlenet/heartbeater.rs:137:17
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 ;
[INFO] [stdout]     |                 ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.92s
[INFO] running `Command { std: "docker" "inspect" "0a9bc7d8d42b578c645ec5a2d5a891dfbb5100b78c8389fdd523b8af610b1322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a9bc7d8d42b578c645ec5a2d5a891dfbb5100b78c8389fdd523b8af610b1322", kill_on_drop: false }`
[INFO] [stdout] 0a9bc7d8d42b578c645ec5a2d5a891dfbb5100b78c8389fdd523b8af610b1322