[INFO] fetching crate fibre 0.5.0...
[INFO] checking fibre-0.5.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate fibre 0.5.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate fibre 0.5.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate fibre 0.5.0
[INFO] tweaked toml for crates.io crate fibre 0.5.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fibre 0.5.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fibre 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded seize v0.5.0
[INFO] [stderr]   Downloaded bench_matrix v0.2.0
[INFO] [stderr]   Downloaded papaya v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90da1fa459f1c8498037d4c4ecf67c114800c9086edd7d420ce329e7833f3b2a
[INFO] running `Command { std: "docker" "start" "-a" "90da1fa459f1c8498037d4c4ecf67c114800c9086edd7d420ce329e7833f3b2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90da1fa459f1c8498037d4c4ecf67c114800c9086edd7d420ce329e7833f3b2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90da1fa459f1c8498037d4c4ecf67c114800c9086edd7d420ce329e7833f3b2a", kill_on_drop: false }`
[INFO] [stdout] 90da1fa459f1c8498037d4c4ecf67c114800c9086edd7d420ce329e7833f3b2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bae72229eda2cfe518c1de2054ad46287252fa145fbcf0a91da409c13d933fa3
[INFO] running `Command { std: "docker" "start" "-a" "bae72229eda2cfe518c1de2054ad46287252fa145fbcf0a91da409c13d933fa3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.173
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[INFO] [stdout] warning: unused macro definition: `impl_error_with_inner`
[INFO] [stdout]  --> src/error.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | macro_rules! impl_error_with_inner {
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RecvErrorTimeout`, `SendError`, `TryRecvError`, and `TrySendError`
[INFO] [stdout]  --> src/spsc/shared.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::error::{RecvError, RecvErrorTimeout, SendError, TryRecvError, TrySendError};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/spsc/shared.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]   --> src/spsc/shared.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::sync::Arc;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/spsc/shared.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::thread::{self, Thread};
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `Instant`
[INFO] [stdout]   --> src/spsc/shared.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]   --> src/mpsc/unbounded.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::marker::PhantomData;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryRecvError`
[INFO] [stdout]  --> src/mpmc/async_impl.rs:8:31
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::error::{SendError, TryRecvError, TrySendError};
[INFO] [stdout]   |                               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::future::PollFn`
[INFO] [stdout]   --> src/mpmc/core.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use core::future::PollFn;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling serial_test_derive v3.2.0
[INFO] [stdout] warning: constant `LOC_C_RECV` is never used
[INFO] [stdout]   --> src/spmc/ring_buffer.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | const LOC_C_RECV: &str = "Receiver::recv";
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EVT_P_ENTER_LOOP` is never used
[INFO] [stdout]   --> src/spmc/ring_buffer.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 31 | const EVT_P_ENTER_LOOP: &str = "P:EnterLoop";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EVT_P_GOT_MIN_TAIL` is never used
[INFO] [stdout]   --> src/spmc/ring_buffer.rs:32:7
[INFO] [stdout]    |
[INFO] [stdout] 32 | const EVT_P_GOT_MIN_TAIL: &str = "P:GotMinTail";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `capacity` and `is_empty` are never used
[INFO] [stdout]    --> src/spmc/topic/mailbox.rs:126:17
[INFO] [stdout]     |
[INFO] [stdout]  97 | impl<T> MailboxProducer<T> {
[INFO] [stdout]     | -------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 126 |   pub(crate) fn capacity(&self) -> usize {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |   pub(crate) fn is_empty(&self) -> bool {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AlignedInner128` is never constructed
[INFO] [stdout]   --> src/internal/cache_padded.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct AlignedInner128<T> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `park_thread_timeout_cond` is never used
[INFO] [stdout]   --> src/sync_util.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn park_thread_timeout_cond<F>(timeout: Option<Duration>, stop_condition: F)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio v1.45.1
[INFO] [stderr]     Checking serial_test v3.2.0
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking bench_matrix v0.2.0
[INFO] [stdout] warning: unused import: `SendError`
[INFO] [stdout]  --> examples/mpsc.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use fibre::error::{RecvError, SendError};
[INFO] [stdout]   |                               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncTeardownFn` and `ExtractorFn`
[INFO] [stdout]  --> benches/oneshot.rs:5:40
[INFO] [stdout]   |
[INFO] [stdout] 5 |     async_suite::{AsyncBenchmarkSuite, AsyncTeardownFn},
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     ExtractorFn,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cvar`
[INFO] [stdout]    --> tests/spmc_repro.rs:119:16
[INFO] [stdout]     |
[INFO] [stdout] 119 |     let (lock, cvar) = &*timeout_signal;
[INFO] [stdout]     |                ^^^^ help: if this is intentional, prefix it with an underscore: `_cvar`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_repro.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let (mut tx, rx_orig) = spmc::bounded(capacity);
[INFO] [stdout]    |          ----^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_repro.rs:34:11
[INFO] [stdout]    |
[INFO] [stdout] 34 |       let mut rx_clone = rx_orig.clone();
[INFO] [stdout]    |           ----^^^^^^^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/spmc_repro.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut timed_out = *lock.lock().unwrap();
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryRecvError`
[INFO] [stdout]  --> tests/topic_spmc_async.rs:6:42
[INFO] [stdout]   |
[INFO] [stdout] 6 | use fibre::error::{RecvError, SendError, TryRecvError};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> tests/topic_spmc_async.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/oneshot.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout] 68 |       let (p_oneshot, mut r_oneshot) = oneshot::oneshot();
[INFO] [stdout]    |                       ----^^^^^^^^^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/mpsc.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let (tx, mut rx) = mpsc::unbounded_async::<String>();
[INFO] [stdout]    |              ----^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/mpsc.rs:99:20
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let (tx_async, mut rx_async) = mpsc::unbounded_async::<String>(); // Start with async channel
[INFO] [stdout]    |                    ----^^^^^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/mpsc.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let (tx, mut rx) = mpsc::unbounded::<String>();
[INFO] [stdout]    |              ----^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/mpsc.rs:124:9
[INFO] [stdout]     |
[INFO] [stdout] 124 |     let mut rx_sync = rx_async.to_sync(); // Convert receiver
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_async.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |   let (mut tx, rx) = spmc::bounded_async(2);
[INFO] [stdout]    |        ----^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/mpsc_sync.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |   let (tx, mut rx) = mpsc::unbounded();
[INFO] [stdout]    |            ----^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_async.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |   let (mut tx, rx) = spmc::bounded_async::<i32>(2);
[INFO] [stdout]    |        ----^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_async.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 |   let (mut tx, rx1) = spmc::bounded_async(ITEMS_LOW);
[INFO] [stdout]    |        ----^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_async.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |   let (mut tx, rx_fast) = spmc::bounded_async(1);
[INFO] [stdout]    |        ----^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LONG_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const LONG_TIMEOUT: Duration = Duration::from_secs(3);
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STRESS_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const STRESS_TIMEOUT: Duration = Duration::from_secs(15);
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_MEDIUM` is never used
[INFO] [stdout]  --> tests/common/mod.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const ITEMS_MEDIUM: usize = 200;
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_HIGH` is never used
[INFO] [stdout]  --> tests/common/mod.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const ITEMS_HIGH: usize = 1000;
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncTeardownFn` and `ExtractorFn`
[INFO] [stdout]  --> benches/spsc_async.rs:5:40
[INFO] [stdout]   |
[INFO] [stdout] 5 |     async_suite::{AsyncBenchmarkSuite, AsyncTeardownFn},
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     ExtractorFn,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/spmc_async.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let (mut tx, rx) = spmc::bounded_async(cfg_clone.capacity);
[INFO] [stdout]    |          ----^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/spmc_async.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     for mut receiver in receivers {
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SHORT_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const SHORT_TIMEOUT: Duration = Duration::from_millis(500);
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LONG_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const LONG_TIMEOUT: Duration = Duration::from_secs(3);
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STRESS_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const STRESS_TIMEOUT: Duration = Duration::from_secs(15);
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_LOW` is never used
[INFO] [stdout]  --> tests/common/mod.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const ITEMS_LOW: usize = 50;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LONG_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const LONG_TIMEOUT: Duration = Duration::from_secs(3);
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STRESS_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const STRESS_TIMEOUT: Duration = Duration::from_secs(15);
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_LOW` is never used
[INFO] [stdout]  --> tests/common/mod.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const ITEMS_LOW: usize = 50;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_MEDIUM` is never used
[INFO] [stdout]  --> tests/common/mod.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const ITEMS_MEDIUM: usize = 200;
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_HIGH` is never used
[INFO] [stdout]  --> tests/common/mod.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const ITEMS_HIGH: usize = 1000;
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> tests/spmc_sync.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 |   let (mut tx, mut rx) = spmc::bounded(2);
[INFO] [stdout]   |        ----^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> tests/spmc_sync.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 |   let (mut tx, mut rx) = spmc::bounded(2);
[INFO] [stdout]   |                ----^^
[INFO] [stdout]   |                |
[INFO] [stdout]   |                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_sync.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |   let (mut tx, mut rx) = spmc::bounded::<i32>(2);
[INFO] [stdout]    |        ----^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_sync.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |   let (mut tx, mut rx) = spmc::bounded::<i32>(2);
[INFO] [stdout]    |                ----^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_sync.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |   let (mut tx, mut rx1) = spmc::bounded(ITEMS_LOW);
[INFO] [stdout]    |        ----^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_sync.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 |   let (mut tx, mut rx1) = spmc::bounded(ITEMS_LOW);
[INFO] [stdout]    |                ----^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_sync.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 |   let mut rx2 = rx1.clone();
[INFO] [stdout]    |       ----^^^
[INFO] [stdout]    |       |
[INFO] [stdout]    |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_sync.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 |   let mut rx3 = rx1.clone();
[INFO] [stdout]    |       ----^^^
[INFO] [stdout]    |       |
[INFO] [stdout]    |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_sync.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |   let (mut tx, mut rx_fast) = spmc::bounded(1); // Capacity of 1
[INFO] [stdout]    |        ----^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_sync.rs:56:16
[INFO] [stdout]    |
[INFO] [stdout] 56 |   let (mut tx, mut rx_fast) = spmc::bounded(1); // Capacity of 1
[INFO] [stdout]    |                ----^^^^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_sync.rs:57:7
[INFO] [stdout]    |
[INFO] [stdout] 57 |   let mut rx_slow = rx_fast.clone();
[INFO] [stdout]    |       ----^^^^^^^
[INFO] [stdout]    |       |
[INFO] [stdout]    |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/spmc_sync.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 |   let (mut tx, rx) = spmc::bounded(2);
[INFO] [stdout]    |        ----^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LONG_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const LONG_TIMEOUT: Duration = Duration::from_secs(3);
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STRESS_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const STRESS_TIMEOUT: Duration = Duration::from_secs(15);
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_MEDIUM` is never used
[INFO] [stdout]  --> tests/common/mod.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const ITEMS_MEDIUM: usize = 200;
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_HIGH` is never used
[INFO] [stdout]  --> tests/common/mod.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const ITEMS_HIGH: usize = 1000;
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/mpsc_async.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let (tx, mut rx) = mpsc::unbounded_async();
[INFO] [stdout]    |              ----^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `impl_error_with_inner`
[INFO] [stdout]  --> src/error.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | macro_rules! impl_error_with_inner {
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RecvErrorTimeout`, `SendError`, `TryRecvError`, and `TrySendError`
[INFO] [stdout]  --> src/spsc/shared.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::error::{RecvError, RecvErrorTimeout, SendError, TryRecvError, TrySendError};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/spsc/shared.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]   --> src/spsc/shared.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::sync::Arc;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/spsc/shared.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::thread::{self, Thread};
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `Instant`
[INFO] [stdout]   --> src/spsc/shared.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]   --> src/mpsc/unbounded.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::marker::PhantomData;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryRecvError`
[INFO] [stdout]  --> src/mpmc/async_impl.rs:8:31
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::error::{SendError, TryRecvError, TrySendError};
[INFO] [stdout]   |                               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::future::PollFn`
[INFO] [stdout]   --> src/mpmc/core.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use core::future::PollFn;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SendError`
[INFO] [stdout]  --> examples/spmc.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use fibre::error::{RecvError, SendError};
[INFO] [stdout]   |                               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicUsize`, `Ordering`, and `sync::Arc`
[INFO] [stdout]  --> examples/spmc.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 |   sync::atomic::{AtomicUsize, Ordering},
[INFO] [stdout]   |                  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 6 |   sync::Arc,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LONG_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const LONG_TIMEOUT: Duration = Duration::from_secs(3);
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STRESS_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const STRESS_TIMEOUT: Duration = Duration::from_secs(15);
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_LOW` is never used
[INFO] [stdout]  --> tests/common/mod.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const ITEMS_LOW: usize = 50;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_MEDIUM` is never used
[INFO] [stdout]  --> tests/common/mod.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const ITEMS_MEDIUM: usize = 200;
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_HIGH` is never used
[INFO] [stdout]  --> tests/common/mod.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const ITEMS_HIGH: usize = 1000;
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `producer_task_handle`
[INFO] [stdout]    --> examples/spmc.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let producer_task_handle = common_async::block_on_tokio_task(async move {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_producer_task_handle`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/spmc.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let (mut tx, rx1_orig) = spmc::bounded_async::<String>(capacity);
[INFO] [stdout]    |          ----^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/spmc.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut rx1 = rx1_orig.clone();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/spmc.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let mut rx2 = rx1_orig.clone();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/spmc.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |     let mut tx_sync_converted = tx_async.to_sync(); // Convert producer
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/spmc.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |     let mut rx_async1 = rx_async1_orig.clone();
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/spmc.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |     let mut rx_async2 = rx_async1_orig.clone();
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/spmc.rs:162:11
[INFO] [stdout]     |
[INFO] [stdout] 162 |       let mut tx_async_local = tx_async; // Avoid capturing the original tx_async if it's used elsewhere
[INFO] [stdout]     |           ----^^^^^^^^^^^^^^
[INFO] [stdout]     |           |
[INFO] [stdout]     |           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/spmc.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let (mut tx, rx1_orig) = spmc::bounded::<String>(capacity);
[INFO] [stdout]    |          ----^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/spmc.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut rx1 = rx1_orig.clone(); // Keep original alive for other clones
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/spmc.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut rx2 = rx1_orig.clone();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/spmc.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |     let mut rx_sync1 = rx_async1_orig.clone().to_sync(); // Convert receivers
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/spmc.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |     let mut rx_sync2 = rx_async1_orig.to_sync();
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/mpsc_sync.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |   let (tx, mut rx) = mpsc::unbounded_async();
[INFO] [stdout]    |            ----^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/mpsc_sync.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |   let (tx, mut rx) = mpsc::unbounded_async();
[INFO] [stdout]    |            ----^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/mpsc_sync.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |   let (tx, mut rx) = mpsc::unbounded_async::<()>();
[INFO] [stdout]    |            ----^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/mpsc_sync.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |   let (tx, mut rx) = mpsc::unbounded_async();
[INFO] [stdout]    |            ----^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/mpsc_sync.rs:104:18
[INFO] [stdout]     |
[INFO] [stdout] 104 |   let (tx_async, mut rx_async) = mpsc::unbounded_async();
[INFO] [stdout]     |                  ----^^^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LONG_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const LONG_TIMEOUT: Duration = Duration::from_secs(3);
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STRESS_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const STRESS_TIMEOUT: Duration = Duration::from_secs(15);
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_LOW` is never used
[INFO] [stdout]  --> tests/common/mod.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const ITEMS_LOW: usize = 50;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_MEDIUM` is never used
[INFO] [stdout]  --> tests/common/mod.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const ITEMS_MEDIUM: usize = 200;
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LONG_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const LONG_TIMEOUT: Duration = Duration::from_secs(3);
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STRESS_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const STRESS_TIMEOUT: Duration = Duration::from_secs(15);
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_LOW` is never used
[INFO] [stdout]  --> tests/common/mod.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const ITEMS_LOW: usize = 50;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/spmc_sync.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     for mut receiver in receivers {
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/spmc_sync.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 |   let (mut tx, rx) = spmc::bounded(cfg.capacity);
[INFO] [stdout]    |        ----^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExtractorFn` and `SyncTeardownFn`
[INFO] [stdout]  --> benches/spsc_sync.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 |     sync_suite::{SyncBenchmarkSuite, SyncTeardownFn},
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     ExtractorFn,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `future::Future` and `pin::Pin`
[INFO] [stdout]   --> benches/spsc_sync.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 12 |   future::Future,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 13 |   pin::Pin,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::runtime::Runtime`
[INFO] [stdout]   --> benches/spsc_sync.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use tokio::runtime::Runtime;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LONG_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const LONG_TIMEOUT: Duration = Duration::from_secs(3);
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STRESS_TIMEOUT` is never used
[INFO] [stdout]  --> tests/common/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const STRESS_TIMEOUT: Duration = Duration::from_secs(15);
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_LOW` is never used
[INFO] [stdout]  --> tests/common/mod.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const ITEMS_LOW: usize = 50;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_MEDIUM` is never used
[INFO] [stdout]  --> tests/common/mod.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const ITEMS_MEDIUM: usize = 200;
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/spsc_sync.rs:91:3
[INFO] [stdout]    |
[INFO] [stdout] 91 |   mut state: SpscSyncState,
[INFO] [stdout]    |   ----^^^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> examples/oneshot.rs:145:7
[INFO] [stdout]     |
[INFO] [stdout] 141 |       Err(RecvError::Disconnected) => {
[INFO] [stdout]     |       ---------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 145 |       Err(e) => panic!("Unexpected error: {:?}", e),
[INFO] [stdout]     |       ^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/oneshot.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (tx, mut rx) = oneshot::oneshot::<String>();
[INFO] [stdout]    |              ----^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/oneshot.rs:39:14
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let (tx, mut rx) = oneshot::oneshot::<String>();
[INFO] [stdout]    |              ----^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/oneshot.rs:71:14
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let (tx, mut rx) = oneshot::oneshot::<String>();
[INFO] [stdout]    |              ----^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/oneshot.rs:138:14
[INFO] [stdout]     |
[INFO] [stdout] 138 |     let (tx, mut rx) = oneshot::oneshot::<String>();
[INFO] [stdout]     |              ----^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/oneshot.rs:104:26
[INFO] [stdout]     |
[INFO] [stdout] 104 |   let (tx_async_to_sync, mut rx_async_for_sync) = oneshot::oneshot::<String>();
[INFO] [stdout]     |                          ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/spsc.rs:48:14
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let (tx, mut rx) = spsc::bounded_async::<String>(capacity);
[INFO] [stdout]    |              ----^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/spsc.rs:82:10
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let (mut tx_s, rx_s) = spsc::bounded_sync::<String>(capacity);
[INFO] [stdout]    |          ----^^^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/spsc.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut rx_a = rx_s.to_async();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/spsc.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let (mut tx, mut rx) = spsc::bounded_sync::<String>(capacity);
[INFO] [stdout]    |          ----^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/spsc.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let (mut tx, mut rx) = spsc::bounded_sync::<String>(capacity);
[INFO] [stdout]    |                  ----^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/spsc.rs:126:9
[INFO] [stdout]     |
[INFO] [stdout] 126 |     let mut rx_s = rx_a.to_sync();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/oneshot/tests.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |   let (tx, mut rx) = oneshot::<String>();
[INFO] [stdout]    |            ----^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/oneshot/tests.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |   let (tx, mut rx) = oneshot::<i32>();
[INFO] [stdout]    |            ----^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/oneshot/tests.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |   let (tx, mut rx) = oneshot::<i32>();
[INFO] [stdout]    |            ----^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/oneshot/tests.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |   let (tx1, mut rx) = oneshot::<i32>();
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/oneshot/tests.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |   let (tx1, mut rx) = oneshot::<i32>();
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/oneshot/tests.rs:120:14
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let (tx, mut rx) = oneshot::<DroppableVal>();
[INFO] [stdout]     |              ----^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/oneshot/tests.rs:161:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |   let (tx1, mut rx1) = oneshot::<i32>();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/oneshot/tests.rs:162:14
[INFO] [stdout]     |
[INFO] [stdout] 162 |   let (_tx2, mut rx2) = oneshot::<i32>(); // This one won't receive anything
[INFO] [stdout]     |              ----^^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/oneshot/tests.rs:187:17
[INFO] [stdout]     |
[INFO] [stdout] 187 |   let (tx_orig, mut rx) = oneshot::<()>();
[INFO] [stdout]     |                 ----^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/oneshot/tests.rs:205:12
[INFO] [stdout]     |
[INFO] [stdout] 205 |   let (tx, mut rx) = oneshot::<i32>();
[INFO] [stdout]     |            ----^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/oneshot/tests.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |   let (tx1, mut rx) = oneshot::<i32>();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_async.rs:451:13
[INFO] [stdout]     |
[INFO] [stdout] 451 |     let (p, mut c) = bounded_async(1);
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_async.rs:468:13
[INFO] [stdout]     |
[INFO] [stdout] 468 |     let (p, mut c) = bounded_async::<i32>(1);
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_async.rs:494:13
[INFO] [stdout]     |
[INFO] [stdout] 494 |     let (p, mut c) = bounded_async::<i32>(1);
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_async.rs:528:13
[INFO] [stdout]     |
[INFO] [stdout] 528 |     let (p, mut c) = bounded_async::<i32>(1);
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_async.rs:555:13
[INFO] [stdout]     |
[INFO] [stdout] 555 |     let (p, mut c) = bounded_async::<i32>(1);
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_async.rs:570:13
[INFO] [stdout]     |
[INFO] [stdout] 570 |     let (p, mut c) = bounded_async::<i32>(1);
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_async.rs:592:14
[INFO] [stdout]     |
[INFO] [stdout] 592 |     let (p1, mut c1) = bounded_async::<i32>(1);
[INFO] [stdout]     |              ----^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_async.rs:593:15
[INFO] [stdout]     |
[INFO] [stdout] 593 |     let (_p2, mut c2) = bounded_async::<i32>(1); // This consumer will never receive
[INFO] [stdout]     |               ----^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_async.rs:615:22
[INFO] [stdout]     |
[INFO] [stdout] 615 |     let (p_can_send, mut c_can_send) = bounded_async::<i32>(1);
[INFO] [stdout]     |                      ----^^^^^^^^^^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_async.rs:645:9
[INFO] [stdout]     |
[INFO] [stdout] 645 |     let mut sync_p = BoundedSyncSender::from_shared(core_shared.clone());
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_async.rs:688:9
[INFO] [stdout]     |
[INFO] [stdout] 688 |     let mut sync_c = BoundedSyncReceiver::from_shared(core_shared);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_async.rs:749:13
[INFO] [stdout]     |
[INFO] [stdout] 749 |     let (p, mut c) = bounded_async::<i32>(1);
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:553:10
[INFO] [stdout]     |
[INFO] [stdout] 553 |     let (mut p, mut c) = bounded_sync(1);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:553:17
[INFO] [stdout]     |
[INFO] [stdout] 553 |     let (mut p, mut c) = bounded_sync(1);
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:572:10
[INFO] [stdout]     |
[INFO] [stdout] 572 |     let (mut p, mut c) = bounded_sync::<i32>(1);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:572:17
[INFO] [stdout]     |
[INFO] [stdout] 572 |     let (mut p, mut c) = bounded_sync::<i32>(1);
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:596:13
[INFO] [stdout]     |
[INFO] [stdout] 596 |     let (p, mut c) = bounded_sync::<i32>(1);
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:616:10
[INFO] [stdout]     |
[INFO] [stdout] 616 |     let (mut p, mut c) = bounded_sync::<i32>(1);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:616:17
[INFO] [stdout]     |
[INFO] [stdout] 616 |     let (mut p, mut c) = bounded_sync::<i32>(1);
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:634:10
[INFO] [stdout]     |
[INFO] [stdout] 634 |     let (mut p, mut c) = bounded_sync::<i32>(1);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:634:17
[INFO] [stdout]     |
[INFO] [stdout] 634 |     let (mut p, mut c) = bounded_sync::<i32>(1);
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:649:13
[INFO] [stdout]     |
[INFO] [stdout] 649 |     let (p, mut c) = bounded_sync::<i32>(1);
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:661:10
[INFO] [stdout]     |
[INFO] [stdout] 661 |     let (mut p, c) = bounded_sync::<i32>(1);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:675:10
[INFO] [stdout]     |
[INFO] [stdout] 675 |     let (mut p, mut c) = bounded_sync(CAPACITY);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:675:17
[INFO] [stdout]     |
[INFO] [stdout] 675 |     let (mut p, mut c) = bounded_sync(CAPACITY);
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:696:10
[INFO] [stdout]     |
[INFO] [stdout] 696 |     let (mut p, c) = bounded_sync::<i32>(5);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:708:10
[INFO] [stdout]     |
[INFO] [stdout] 708 |     let (mut p, mut c) = bounded_sync::<i32>(5);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:708:17
[INFO] [stdout]     |
[INFO] [stdout] 708 |     let (mut p, mut c) = bounded_sync::<i32>(5);
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:722:13
[INFO] [stdout]     |
[INFO] [stdout] 722 |     let (p, mut c) = bounded_sync::<i32>(5);
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:745:12
[INFO] [stdout]     |
[INFO] [stdout] 745 |       let (mut p, mut c) = bounded_sync::<Droppable>(2);
[INFO] [stdout]     |            ----^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:745:19
[INFO] [stdout]     |
[INFO] [stdout] 745 |       let (mut p, mut c) = bounded_sync::<Droppable>(2);
[INFO] [stdout]     |                   ----^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:769:12
[INFO] [stdout]     |
[INFO] [stdout] 769 |       let (mut p, c) = bounded_sync::<Droppable>(2);
[INFO] [stdout]     |            ----^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:779:12
[INFO] [stdout]     |
[INFO] [stdout] 779 |       let (mut p, c) = bounded_sync::<Droppable>(1);
[INFO] [stdout]     |            ----^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:796:10
[INFO] [stdout]     |
[INFO] [stdout] 796 |     let (mut p, mut c) = bounded_sync::<i32>(1);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:817:10
[INFO] [stdout]     |
[INFO] [stdout] 817 |     let (mut p, mut c) = bounded_sync::<i32>(1);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:829:10
[INFO] [stdout]     |
[INFO] [stdout] 829 |     let (mut p, c) = bounded_sync::<i32>(5);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spmc/mod.rs:196:10
[INFO] [stdout]     |
[INFO] [stdout] 196 |     let (mut tx, rx) = bounded(2);
[INFO] [stdout]     |          ----^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spmc/mod.rs:219:10
[INFO] [stdout]     |
[INFO] [stdout] 219 |     let (mut tx, rx1) = bounded(4);
[INFO] [stdout]     |          ----^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spmc/mod.rs:265:10
[INFO] [stdout]     |
[INFO] [stdout] 265 |     let (mut tx, rx1) = bounded(1);
[INFO] [stdout]     |          ----^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spmc/mod.rs:294:10
[INFO] [stdout]     |
[INFO] [stdout] 294 |     let (mut tx, rx1) = bounded(ITEMS_LOW);
[INFO] [stdout]     |          ----^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spmc/mod.rs:327:10
[INFO] [stdout]     |
[INFO] [stdout] 327 |     let (mut tx, rx_fast) = bounded(1); // Capacity of 1
[INFO] [stdout]     |          ----^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spmc/mod.rs:369:10
[INFO] [stdout]     |
[INFO] [stdout] 369 |     let (mut tx, rx) = bounded(2);
[INFO] [stdout]     |          ----^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spmc/mod.rs:406:8
[INFO] [stdout]     |
[INFO] [stdout] 406 |   let (mut tx, rx1) = bounded(2);
[INFO] [stdout]     |        ----^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DROP_COUNT` is never used
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:733:12
[INFO] [stdout]     |
[INFO] [stdout] 733 |     static DROP_COUNT: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/spsc/bounded_sync.rs:735:22
[INFO] [stdout]     |
[INFO] [stdout] 735 |     struct Droppable(usize, Arc<AtomicUsize>);
[INFO] [stdout]     |            --------- ^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Droppable` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 735 -     struct Droppable(usize, Arc<AtomicUsize>);
[INFO] [stdout] 735 +     struct Droppable((), Arc<AtomicUsize>);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LOC_C_RECV` is never used
[INFO] [stdout]   --> src/spmc/ring_buffer.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | const LOC_C_RECV: &str = "Receiver::recv";
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EVT_P_ENTER_LOOP` is never used
[INFO] [stdout]   --> src/spmc/ring_buffer.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 31 | const EVT_P_ENTER_LOOP: &str = "P:EnterLoop";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EVT_P_GOT_MIN_TAIL` is never used
[INFO] [stdout]   --> src/spmc/ring_buffer.rs:32:7
[INFO] [stdout]    |
[INFO] [stdout] 32 | const EVT_P_GOT_MIN_TAIL: &str = "P:GotMinTail";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `capacity` and `is_empty` are never used
[INFO] [stdout]    --> src/spmc/topic/mailbox.rs:126:17
[INFO] [stdout]     |
[INFO] [stdout]  97 | impl<T> MailboxProducer<T> {
[INFO] [stdout]     | -------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 126 |   pub(crate) fn capacity(&self) -> usize {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |   pub(crate) fn is_empty(&self) -> bool {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LONG_TIMEOUT` is never used
[INFO] [stdout]    --> src/spmc/mod.rs:188:13
[INFO] [stdout]     |
[INFO] [stdout] 188 |   pub const LONG_TIMEOUT: Duration = Duration::from_secs(3);
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STRESS_TIMEOUT` is never used
[INFO] [stdout]    --> src/spmc/mod.rs:189:13
[INFO] [stdout]     |
[INFO] [stdout] 189 |   pub const STRESS_TIMEOUT: Duration = Duration::from_secs(15);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_MEDIUM` is never used
[INFO] [stdout]    --> src/spmc/mod.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |   pub const ITEMS_MEDIUM: usize = 200;
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITEMS_HIGH` is never used
[INFO] [stdout]    --> src/spmc/mod.rs:192:13
[INFO] [stdout]     |
[INFO] [stdout] 192 |   pub const ITEMS_HIGH: usize = 1000;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AlignedInner128` is never constructed
[INFO] [stdout]   --> src/internal/cache_padded.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct AlignedInner128<T> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/internal/cache_padded.rs:120:19
[INFO] [stdout]     |
[INFO] [stdout] 120 |     struct MyData(u64);
[INFO] [stdout]     |            ------ ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `MyData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `park_thread_timeout_cond` is never used
[INFO] [stdout]   --> src/sync_util.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn park_thread_timeout_cond<F>(timeout: Option<Duration>, stop_condition: F)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 18.32s
[INFO] running `Command { std: "docker" "inspect" "bae72229eda2cfe518c1de2054ad46287252fa145fbcf0a91da409c13d933fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bae72229eda2cfe518c1de2054ad46287252fa145fbcf0a91da409c13d933fa3", kill_on_drop: false }`
[INFO] [stdout] bae72229eda2cfe518c1de2054ad46287252fa145fbcf0a91da409c13d933fa3