[INFO] cloning repository https://github.com/rchaser53/ro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rchaser53/ro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Fro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Fro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9cc5be6c50cc676cab6fb9783f1b30daeeae3d2e
[INFO] documenting rchaser53/ro 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%2Frchaser53%2Fro" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/ro 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/rchaser53/ro
[INFO] finished tweaking git repo https://github.com/rchaser53/ro
[INFO] tweaked toml for git repo https://github.com/rchaser53/ro written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/rchaser53/ro 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] ca4586a46da39bdb5c062ac7f418dc61d96b289ae95240682d159de824f71a82
[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" "ca4586a46da39bdb5c062ac7f418dc61d96b289ae95240682d159de824f71a82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca4586a46da39bdb5c062ac7f418dc61d96b289ae95240682d159de824f71a82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca4586a46da39bdb5c062ac7f418dc61d96b289ae95240682d159de824f71a82", kill_on_drop: false }`
[INFO] [stdout] ca4586a46da39bdb5c062ac7f418dc61d96b289ae95240682d159de824f71a82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3956a5603f5ab7b8934b220242492af0f593db0a49b72ec62dbd2072d8d1ab2a
[INFO] running `Command { std: "docker" "start" "-a" "3956a5603f5ab7b8934b220242492af0f593db0a49b72ec62dbd2072d8d1ab2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]     Checking proc-macro2 v1.0.7
[INFO] [stderr]     Checking tokio v0.2.11
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]  Documenting ro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `ro`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ro src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-56378375299f5a82.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-3993218a0fa015fd.rmeta --extern dtoa=/opt/rustwide/target/debug/deps/libdtoa-8db29847785632d4.rmeta --extern itoa=/opt/rustwide/target/debug/deps/libitoa-59f98fe564716783.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-661b9c0370e78c6f.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-cca4a2b7d2cc3f34.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-95e24f9d8e6ebf10.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-5d0e2700a37591a8.so --extern serde_urlencoded=/opt/rustwide/target/debug/deps/libserde_urlencoded-9e256dddf1689cec.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-c8b8a6b94b9fc791.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-6a44f23bed7b3cd5.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-bef7b683051f4cc8.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "3956a5603f5ab7b8934b220242492af0f593db0a49b72ec62dbd2072d8d1ab2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3956a5603f5ab7b8934b220242492af0f593db0a49b72ec62dbd2072d8d1ab2a", kill_on_drop: false }`
[INFO] [stdout] 3956a5603f5ab7b8934b220242492af0f593db0a49b72ec62dbd2072d8d1ab2a
