[INFO] fetching crate stop-token 0.1.2...
[INFO] documenting stop-token-0.1.2 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate stop-token 0.1.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate stop-token 0.1.2 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stop-token 0.1.2
[INFO] finished tweaking crates.io crate stop-token 0.1.2
[INFO] tweaked toml for crates.io crate stop-token 0.1.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", 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] 1b56509370c83b15b8abab90744e2dd3c3ca7d10cf844b6839e75e630182a3c7
[INFO] running `Command { std: "docker" "start" "-a" "1b56509370c83b15b8abab90744e2dd3c3ca7d10cf844b6839e75e630182a3c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b56509370c83b15b8abab90744e2dd3c3ca7d10cf844b6839e75e630182a3c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b56509370c83b15b8abab90744e2dd3c3ca7d10cf844b6839e75e630182a3c7", kill_on_drop: false }`
[INFO] [stdout] 1b56509370c83b15b8abab90744e2dd3c3ca7d10cf844b6839e75e630182a3c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f165bd9f1dbfb194a226c3356a10bfcf86426e87ee51ab1f89a9b51dd45602d
[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" "8f165bd9f1dbfb194a226c3356a10bfcf86426e87ee51ab1f89a9b51dd45602d", kill_on_drop: false }`
[INFO] [stderr]     Checking async-std v1.6.5
[INFO] [stderr]  Documenting stop-token v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `async_std::sync::channel`, `async_std::sync::Receiver`, `async_std::sync::Sender`
[INFO] [stdout]   --> src/lib.rs:74:23
[INFO] [stdout]    |
[INFO] [stdout] 74 | use async_std::sync::{channel, Receiver, Sender};
[INFO] [stdout]    |                       ^^^^^^^  ^^^^^^^^  ^^^^^^ no `Sender` in `sync`
[INFO] [stdout]    |                       |        |
[INFO] [stdout]    |                       |        no `Receiver` in `sync`
[INFO] [stdout]    |                       no `channel` in `sync`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `stop-token`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name stop_token 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 async_std=/opt/rustwide/target/debug/deps/libasync_std-42cfda62c301145b.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-92321333351fea9a.rmeta --cap-lints=warn --crate-version 0.1.2` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "8f165bd9f1dbfb194a226c3356a10bfcf86426e87ee51ab1f89a9b51dd45602d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f165bd9f1dbfb194a226c3356a10bfcf86426e87ee51ab1f89a9b51dd45602d", kill_on_drop: false }`
[INFO] [stdout] 8f165bd9f1dbfb194a226c3356a10bfcf86426e87ee51ab1f89a9b51dd45602d
