[INFO] cloning repository https://github.com/mehcode/wadatsumi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mehcode/wadatsumi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Fwadatsumi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Fwadatsumi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08c3eee47e9c7d1491f726b9b3466cf548b2e6e0
[INFO] documenting mehcode/wadatsumi 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%2Fmehcode%2Fwadatsumi" "/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/mehcode/wadatsumi 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] removed /workspace/builds/worker-2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/mehcode/wadatsumi
[INFO] finished tweaking git repo https://github.com/mehcode/wadatsumi
[INFO] tweaked toml for git repo https://github.com/mehcode/wadatsumi written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mehcode/wadatsumi 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 derive_more v0.14.0
[INFO] [stderr]   Downloaded backtrace v0.3.14
[INFO] [stderr]   Downloaded bitintr v0.2.0
[INFO] [stderr]   Downloaded pretty_env_logger v0.3.0
[INFO] [stderr]   Downloaded syn v0.15.28
[INFO] [stderr]   Downloaded regex v1.1.2
[INFO] [stderr]   Downloaded cc v1.0.30
[INFO] [stderr]   Downloaded regex-syntax v0.6.5
[INFO] [stderr]   Downloaded termcolor v1.0.4
[INFO] [stderr]   Downloaded num-derive v0.2.4
[INFO] [stderr]   Downloaded unchecked_unwrap v1.0.1
[INFO] [stderr]   Downloaded env_logger v0.6.1
[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] 01830fc1083815ace64e0a35cfa163e1712032bfecc37eee88f75ceeaf892c88
[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" "01830fc1083815ace64e0a35cfa163e1712032bfecc37eee88f75ceeaf892c88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01830fc1083815ace64e0a35cfa163e1712032bfecc37eee88f75ceeaf892c88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01830fc1083815ace64e0a35cfa163e1712032bfecc37eee88f75ceeaf892c88", kill_on_drop: false }`
[INFO] [stdout] 01830fc1083815ace64e0a35cfa163e1712032bfecc37eee88f75ceeaf892c88
[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] 1c9f9c2a44d23c8209c5246dce390c1d9c7fef17b56ebfd7b3e28818414663ca
[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" "1c9f9c2a44d23c8209c5246dce390c1d9c7fef17b56ebfd7b3e28818414663ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.30
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking unchecked_unwrap v1.0.1
[INFO] [stderr]     Checking bitintr v0.2.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]    Compiling syn v0.15.28
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bitintr-0.2.0/src/lib.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 |     feature = "unstable", feature(cfg_target_feature, stdsimd, core_intrinsics)
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitintr`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1c9f9c2a44d23c8209c5246dce390c1d9c7fef17b56ebfd7b3e28818414663ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c9f9c2a44d23c8209c5246dce390c1d9c7fef17b56ebfd7b3e28818414663ca", kill_on_drop: false }`
[INFO] [stdout] 1c9f9c2a44d23c8209c5246dce390c1d9c7fef17b56ebfd7b3e28818414663ca