[INFO] fetching crate raft4rs 0.1.4...
[INFO] documenting raft4rs-0.1.4 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate raft4rs 0.1.4 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate raft4rs 0.1.4 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate raft4rs 0.1.4
[INFO] finished tweaking crates.io crate raft4rs 0.1.4
[INFO] tweaked toml for crates.io crate raft4rs 0.1.4 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7ad5c31b1dc707be0c1f841493e57c73502138949f9dbef892db1a65ee461e9
[INFO] running `Command { std: "docker" "start" "-a" "d7ad5c31b1dc707be0c1f841493e57c73502138949f9dbef892db1a65ee461e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7ad5c31b1dc707be0c1f841493e57c73502138949f9dbef892db1a65ee461e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ad5c31b1dc707be0c1f841493e57c73502138949f9dbef892db1a65ee461e9", kill_on_drop: false }`
[INFO] [stdout] d7ad5c31b1dc707be0c1f841493e57c73502138949f9dbef892db1a65ee461e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3137a899898284816592bad590355c1faa21ea48c39b94db4e59c44a1c88916
[INFO] running `Command { std: "docker" "start" "-a" "c3137a899898284816592bad590355c1faa21ea48c39b94db4e59c44a1c88916", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking event-listener v2.5.2
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking async-task v4.2.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling async-trait v0.1.53
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking memchr v2.5.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-lock v2.5.0
[INFO] [stderr]     Checking futures-channel v0.3.21
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking blocking v1.2.0
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking async-io v1.7.0
[INFO] [stderr]     Checking async-process v1.4.0
[INFO] [stderr]     Checking async-global-executor v2.1.0
[INFO] [stderr]     Checking async-std v1.11.0
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]     Checking deadpool v0.5.2
[INFO] [stderr]  Documenting raft4rs v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `async_std::sync::channel`, `async_std::sync::Receiver`, `async_std::sync::Sender`
[INFO] [stdout]  --> src/raft.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     sync::{channel, Mutex, Receiver, RwLock, Sender as Tx},
[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[E0432]: unresolved import `async_std::sync::channel`
[INFO] [stdout]  --> src/sender.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 | use async_std::{net::TcpStream, prelude::*, sync::channel, sync::RwLock, task};
[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 3 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 `raft4rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name raft4rs src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f0a8fcef1e142e96 -L dependency=/opt/rustwide/target/debug/deps --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-f72c82dbadeab4cc.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-f2eb86ea0bdcf4b8.so --extern deadpool=/opt/rustwide/target/debug/deps/libdeadpool-0ada00e5db229a7f.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-43c51f32c64d1b71.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-5db4f4f4c0d47046.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-bca3cf69452d8824.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-b4f43387cb3ba091.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-6da2383fa14d0272.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-b94d2c00e0646bc3.rmeta --cap-lints=warn --crate-version 0.1.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "c3137a899898284816592bad590355c1faa21ea48c39b94db4e59c44a1c88916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3137a899898284816592bad590355c1faa21ea48c39b94db4e59c44a1c88916", kill_on_drop: false }`
[INFO] [stdout] c3137a899898284816592bad590355c1faa21ea48c39b94db4e59c44a1c88916