[INFO] cloning repository https://github.com/south37/rust-websocket-connection
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/south37/rust-websocket-connection" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouth37%2Frust-websocket-connection", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouth37%2Frust-websocket-connection'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd9a253e1e9fbdd3d2b6d5b722f69be66f295f90
[INFO] documenting south37/rust-websocket-connection against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouth37%2Frust-websocket-connection" "/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/south37/rust-websocket-connection on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/south37/rust-websocket-connection
[INFO] finished tweaking git repo https://github.com/south37/rust-websocket-connection
[INFO] tweaked toml for git repo https://github.com/south37/rust-websocket-connection written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/south37/rust-websocket-connection already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/carllerche/mio`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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-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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d5b080c0ff5e6b8d0e6c63666411bb682a53769e4aac4e5b09c16c92877e838
[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" "0d5b080c0ff5e6b8d0e6c63666411bb682a53769e4aac4e5b09c16c92877e838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d5b080c0ff5e6b8d0e6c63666411bb682a53769e4aac4e5b09c16c92877e838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d5b080c0ff5e6b8d0e6c63666411bb682a53769e4aac4e5b09c16c92877e838", kill_on_drop: false }`
[INFO] [stdout] 0d5b080c0ff5e6b8d0e6c63666411bb682a53769e4aac4e5b09c16c92877e838
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 5185976142d9868406b9510e367762e82e3fb6ff1b9d2a37266de15988e5802d
[INFO] running `Command { std: "docker" "start" "-a" "5185976142d9868406b9510e367762e82e3fb6ff1b9d2a37266de15988e5802d", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking sha1 v0.1.1
[INFO] [stderr]     Checking mio v0.7.0 (https://github.com/carllerche/mio#eef8d3b9)
[INFO] [stderr]    Compiling http-muncher v0.2.5
[INFO] [stderr]  Documenting chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `mio::TryRead`, `mio::TryWrite`
[INFO] [stdout]  --> src/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use mio::{TryRead, TryWrite};
[INFO] [stdout]   |           ^^^^^^^  ^^^^^^^^ no `TryWrite` in the root
[INFO] [stdout]   |           |
[INFO] [stdout]   |           no `TryRead` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `tcp` in `mio`
[INFO] [stdout]   --> src/main.rs:51:18
[INFO] [stdout]    |
[INFO] [stdout] 51 |     socket: mio::tcp::TcpStream,
[INFO] [stdout]    |                  ^^^ could not find `tcp` in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `tcp` in `mio`
[INFO] [stdout]   --> src/main.rs:99:25
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn new(socket: mio::tcp::TcpStream) -> WebSocketClient {
[INFO] [stdout]    |                         ^^^ could not find `tcp` in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `tcp` in `mio`
[INFO] [stdout]    --> src/main.rs:117:18
[INFO] [stdout]     |
[INFO] [stdout] 117 |     socket: mio::tcp::TcpListener,
[INFO] [stdout]     |                  ^^^ could not find `tcp` in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `EventSet` in crate `mio`
[INFO] [stdout]   --> src/main.rs:55:20
[INFO] [stdout]    |
[INFO] [stdout] 55 |     interest: mio::EventSet,
[INFO] [stdout]    |                    ^^^^^^^^ not found in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Handler` in crate `mio`
[INFO] [stdout]    --> src/main.rs:124:11
[INFO] [stdout]     |
[INFO] [stdout] 124 | impl mio::Handler for WebSocketServer {
[INFO] [stdout]     |           ^^^^^^^ not found in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `EventLoop` in crate `mio`
[INFO] [stdout]    --> src/main.rs:128:47
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn ready(&mut self, event_loop: &mut mio::EventLoop<WebSocketServer>,
[INFO] [stdout]     |                                               ^^^^^^^^^ not found in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `EventSet` in crate `mio`
[INFO] [stdout]    --> src/main.rs:129:46
[INFO] [stdout]     |
[INFO] [stdout] 129 |              token: mio::Token, events: mio::EventSet)
[INFO] [stdout]     |                                              ^^^^^^^^ not found in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `chat`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name chat src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern http_muncher=/opt/rustwide/target/debug/deps/libhttp_muncher-23e27c7ecd37aeb1.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-53b53047f7d0000b.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-0e355727854478f2.rmeta --extern sha1=/opt/rustwide/target/debug/deps/libsha1-66bc3b46d756f417.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "5185976142d9868406b9510e367762e82e3fb6ff1b9d2a37266de15988e5802d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5185976142d9868406b9510e367762e82e3fb6ff1b9d2a37266de15988e5802d", kill_on_drop: false }`
[INFO] [stdout] 5185976142d9868406b9510e367762e82e3fb6ff1b9d2a37266de15988e5802d