[INFO] fetching crate channel-async 0.3.0-deprecated...
[INFO] documenting channel-async-0.3.0-deprecated against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate channel-async 0.3.0-deprecated into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate channel-async 0.3.0-deprecated 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 channel-async 0.3.0-deprecated
[INFO] finished tweaking crates.io crate channel-async 0.3.0-deprecated
[INFO] tweaked toml for crates.io crate channel-async 0.3.0-deprecated written to /workspace/builds/worker-14/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 09ddff24871c4b4ff351dacc019b95c5395ae64c75894e8b046cfd58e991312c
[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" "09ddff24871c4b4ff351dacc019b95c5395ae64c75894e8b046cfd58e991312c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09ddff24871c4b4ff351dacc019b95c5395ae64c75894e8b046cfd58e991312c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09ddff24871c4b4ff351dacc019b95c5395ae64c75894e8b046cfd58e991312c", kill_on_drop: false }`
[INFO] [stdout] 09ddff24871c4b4ff351dacc019b95c5395ae64c75894e8b046cfd58e991312c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 726eab39e396dd692a618fe0b16e8a55f3cd415e255eda866728d8e03fc478f5
[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" "726eab39e396dd692a618fe0b16e8a55f3cd415e255eda866728d8e03fc478f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]  Documenting channel-async v0.3.0-deprecated (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tokio::timer`
[INFO] [stdout]  --> src/receiver.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tokio::timer::Delay;
[INFO] [stdout]   |            ^^^^^ could not find `timer` in `tokio`
[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 `channel-async`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name channel_async 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 crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-28b3ed1e3aa15149.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-4391e673a94c45e2.rmeta --extern failure_derive=/opt/rustwide/target/debug/deps/libfailure_derive-6f978b0e5b38f5c5.so --extern futures=/opt/rustwide/target/debug/deps/libfutures-6dc9766a41700476.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-e78ed758cec3fa5e.rmeta --cap-lints=warn --crate-version 0.3.0-deprecated` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "726eab39e396dd692a618fe0b16e8a55f3cd415e255eda866728d8e03fc478f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "726eab39e396dd692a618fe0b16e8a55f3cd415e255eda866728d8e03fc478f5", kill_on_drop: false }`
[INFO] [stdout] 726eab39e396dd692a618fe0b16e8a55f3cd415e255eda866728d8e03fc478f5