[INFO] fetching crate remote-canvas 1.0.4...
[INFO] documenting remote-canvas-1.0.4 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate remote-canvas 1.0.4 into /workspace/builds/worker-34/source
[INFO] validating manifest of crates.io crate remote-canvas 1.0.4 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate remote-canvas 1.0.4
[INFO] finished tweaking crates.io crate remote-canvas 1.0.4
[INFO] tweaked toml for crates.io crate remote-canvas 1.0.4 written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47c63b50edfd6d96ccf621b860aae4ad94e48f97688f7aef8cdd6e90fe12a595
[INFO] running `Command { std: "docker" "start" "-a" "47c63b50edfd6d96ccf621b860aae4ad94e48f97688f7aef8cdd6e90fe12a595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47c63b50edfd6d96ccf621b860aae4ad94e48f97688f7aef8cdd6e90fe12a595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47c63b50edfd6d96ccf621b860aae4ad94e48f97688f7aef8cdd6e90fe12a595", kill_on_drop: false }`
[INFO] [stdout] 47c63b50edfd6d96ccf621b860aae4ad94e48f97688f7aef8cdd6e90fe12a595
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1962db71d851c1b11b50741507d5f787f809c59a9c6d08b5cc857c8d4b68ec16
[INFO] running `Command { std: "docker" "start" "-a" "1962db71d851c1b11b50741507d5f787f809c59a9c6d08b5cc857c8d4b68ec16", kill_on_drop: false }`
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[INFO] [stderr]     Checking awc v1.0.1
[INFO] [stderr]     Checking actix-web v2.0.0
[INFO] [stderr]  Documenting remote-canvas v1.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `Sender` in module `sync`
[INFO] [stdout]   --> src/canvas.rs:10:30
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub(crate) sender: sync::Sender<mpsc::Receiver<WSMessage>>,
[INFO] [stdout]    |                              ^^^^^^ not found in `sync`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use async_std::channel::Sender;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use crate::mpsc::Sender;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::sync::mpsc::Sender;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use tokio::sync::broadcast::Sender;
[INFO] [stdout]    |
[INFO] [stdout]      and 3 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Sender` in module `sync`
[INFO] [stdout]    --> src/websocket.rs:302:32
[INFO] [stdout]     |
[INFO] [stdout] 302 |     pub response: Option<sync::Sender<WsMessageResponse>>,
[INFO] [stdout]     |                                ^^^^^^ not found in `sync`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use async_std::channel::Sender;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use crate::mpsc::Sender;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::sync::mpsc::Sender;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use tokio::sync::broadcast::Sender;
[INFO] [stdout]     |
[INFO] [stdout]       and 3 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Receiver` in module `sync`
[INFO] [stdout]    --> src/websocket.rs:321:25
[INFO] [stdout]     |
[INFO] [stdout] 321 |     mut receiver: sync::Receiver<mpsc::Receiver<WSMessage>>,
[INFO] [stdout]     |                         ^^^^^^^^ not found in `sync`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use async_std::channel::Receiver;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use core::ops::Receiver;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use crate::mpsc::Receiver;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::ops::Receiver;
[INFO] [stdout]     |
[INFO] [stdout]       and 5 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Receiver` in module `sync`
[INFO] [stdout]    --> src/websocket.rs:375:21
[INFO] [stdout]     |
[INFO] [stdout] 375 |     receiver: sync::Receiver<mpsc::Receiver<WSMessage>>,
[INFO] [stdout]     |                     ^^^^^^^^ not found in `sync`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use async_std::channel::Receiver;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use core::ops::Receiver;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use crate::mpsc::Receiver;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::ops::Receiver;
[INFO] [stdout]     |
[INFO] [stdout]       and 5 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Receiver` in module `sync`
[INFO] [stdout]    --> src/websocket.rs:389:21
[INFO] [stdout]     |
[INFO] [stdout] 389 |     receiver: sync::Receiver<mpsc::Receiver<WSMessage>>,
[INFO] [stdout]     |                     ^^^^^^^^ not found in `sync`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use async_std::channel::Receiver;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use core::ops::Receiver;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use crate::mpsc::Receiver;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::ops::Receiver;
[INFO] [stdout]     |
[INFO] [stdout]       and 5 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `remote-canvas`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name remote_canvas src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=68ca35aeef730667 -L dependency=/opt/rustwide/target/debug/deps --extern actix_rt=/opt/rustwide/target/debug/deps/libactix_rt-6768fee61e6a1524.rmeta --extern actix_web=/opt/rustwide/target/debug/deps/libactix_web-591f216a0b48b66d.rmeta --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-3c2cc0c53dc49e97.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-30e7e73669886735.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-2d32cf426b606b94.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-8d54640b62a78aa4.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-311e13e6ee1f9772.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-2ba9365f9dbc4a99.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-e19b53b2444ec147.rmeta --extern tokio_tungstenite=/opt/rustwide/target/debug/deps/libtokio_tungstenite-5177eaab53155286.rmeta --extern tungstenite=/opt/rustwide/target/debug/deps/libtungstenite-bfbc3d82871b87ff.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-361cae0cb60eef0a.rmeta --cap-lints=warn --crate-version 1.0.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "1962db71d851c1b11b50741507d5f787f809c59a9c6d08b5cc857c8d4b68ec16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1962db71d851c1b11b50741507d5f787f809c59a9c6d08b5cc857c8d4b68ec16", kill_on_drop: false }`
[INFO] [stdout] 1962db71d851c1b11b50741507d5f787f809c59a9c6d08b5cc857c8d4b68ec16