[INFO] fetching crate broadcast-channel 0.0.0...
[INFO] checking broadcast-channel-0.0.0 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate broadcast-channel 0.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate broadcast-channel 0.0.0 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate broadcast-channel 0.0.0
[INFO] finished tweaking crates.io crate broadcast-channel 0.0.0
[INFO] tweaked toml for crates.io crate broadcast-channel 0.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbf79c2f1c529b67429302816ba3ac3095baf9781e7af8462cb892bb5679281b
[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" "bbf79c2f1c529b67429302816ba3ac3095baf9781e7af8462cb892bb5679281b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbf79c2f1c529b67429302816ba3ac3095baf9781e7af8462cb892bb5679281b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbf79c2f1c529b67429302816ba3ac3095baf9781e7af8462cb892bb5679281b", kill_on_drop: false }`
[INFO] [stdout] bbf79c2f1c529b67429302816ba3ac3095baf9781e7af8462cb892bb5679281b
[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" "RUSTFLAGS=--cap-lints=forbid" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b9a0cecf351ad8f1a97be1fe8814854b1956aca71f595efe7280e67bfd5346f
[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" "1b9a0cecf351ad8f1a97be1fe8814854b1956aca71f595efe7280e67bfd5346f", kill_on_drop: false }`
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking broadcast-channel v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/lib.rs:58:35
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub async fn broadcast(&self, msg: T) -> Result<(), SendError<T>> {
[INFO] [stdout]    |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/lib.rs:58:35
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub async fn broadcast(&self, msg: T) -> Result<(), SendError<T>> {
[INFO] [stdout]    |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]   --> src/lib.rs:46:1
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct Sender<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![warn(missing_docs, missing_doc_code_examples, unreachable_pub)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/lib.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn capacity(&self) -> usize {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/lib.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub async fn broadcast(&self, msg: T) -> Result<(), SendError<T>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/lib.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn try_broadcast(&self, msg: T) -> Result<(), TrySendError<T>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/lib.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub async fn recv(&self) -> Result<T, RecvError> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/lib.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn try_recv(&mut self) -> Result<T, TryRecvError> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "1b9a0cecf351ad8f1a97be1fe8814854b1956aca71f595efe7280e67bfd5346f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b9a0cecf351ad8f1a97be1fe8814854b1956aca71f595efe7280e67bfd5346f", kill_on_drop: false }`
[INFO] [stdout] 1b9a0cecf351ad8f1a97be1fe8814854b1956aca71f595efe7280e67bfd5346f