[INFO] fetching crate tokio-channel 0.1.0...
[INFO] testing tokio-channel-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tokio-channel 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tokio-channel 0.1.0
[INFO] finished tweaking crates.io crate tokio-channel 0.1.0
[INFO] tweaked toml for crates.io crate tokio-channel 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-channel 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.32)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cc376c8d40179f4c0d9c0310a3ab22e2e2289584fb415f242e143e74c744821
[INFO] running `Command { std: "docker" "start" "-a" "3cc376c8d40179f4c0d9c0310a3ab22e2e2289584fb415f242e143e74c744821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cc376c8d40179f4c0d9c0310a3ab22e2e2289584fb415f242e143e74c744821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cc376c8d40179f4c0d9c0310a3ab22e2e2289584fb415f242e143e74c744821", kill_on_drop: false }`
[INFO] [stdout] 3cc376c8d40179f4c0d9c0310a3ab22e2e2289584fb415f242e143e74c744821
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18632c124c480913aa3b24e9db4b88e7fa9e02e43a1725a484baeba626622064
[INFO] running `Command { std: "docker" "start" "-a" "18632c124c480913aa3b24e9db4b88e7fa9e02e43a1725a484baeba626622064", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling tokio-channel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `with-deprecated`
[INFO] [stdout]    --> src/oneshot.rs:313:11
[INFO] [stdout]     |
[INFO] [stdout] 313 |     #[cfg(feature = "with-deprecated")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `async-await-preview`
[INFO] [stdout]     = help: consider adding `with-deprecated` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:23
[INFO] [stdout]     |
[INFO] [stdout]   2 | #![deny(missing_docs, warnings, missing_debug_implementations)]
[INFO] [stdout]     |                       ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::Atomic::<usize>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mpsc/mod.rs:731:49
[INFO] [stdout]     |
[INFO] [stdout] 731 |             let actual = self.inner.num_senders.compare_and_swap(curr, next, SeqCst);
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AssertKinds` is never used
[INFO] [stdout]    --> src/mpsc/mod.rs:112:7
[INFO] [stdout]     |
[INFO] [stdout] 112 | trait AssertKinds: Send + Sync + Clone {}
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lock.rs:55:21
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn try_lock(&self) -> Option<TryLock<T>> {
[INFO] [stdout]    |                     ^^^^^            ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn try_lock(&self) -> Option<TryLock<'_, T>> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "18632c124c480913aa3b24e9db4b88e7fa9e02e43a1725a484baeba626622064", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18632c124c480913aa3b24e9db4b88e7fa9e02e43a1725a484baeba626622064", kill_on_drop: false }`
[INFO] [stdout] 18632c124c480913aa3b24e9db4b88e7fa9e02e43a1725a484baeba626622064
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 078d1064e20490817ecddace5437beaa8b3a27514046fefe3fa81cecccd66b2c
[INFO] running `Command { std: "docker" "start" "-a" "078d1064e20490817ecddace5437beaa8b3a27514046fefe3fa81cecccd66b2c", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stdout] warning: unexpected `cfg` condition value: `with-deprecated`
[INFO] [stdout]    --> src/oneshot.rs:313:11
[INFO] [stdout]     |
[INFO] [stdout] 313 |     #[cfg(feature = "with-deprecated")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `async-await-preview`
[INFO] [stdout]     = help: consider adding `with-deprecated` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:23
[INFO] [stdout]     |
[INFO] [stdout]   2 | #![deny(missing_docs, warnings, missing_debug_implementations)]
[INFO] [stdout]     |                       ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio-channel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::Atomic::<usize>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mpsc/mod.rs:731:49
[INFO] [stdout]     |
[INFO] [stdout] 731 |             let actual = self.inner.num_senders.compare_and_swap(curr, next, SeqCst);
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AssertKinds` is never used
[INFO] [stdout]    --> src/mpsc/mod.rs:112:7
[INFO] [stdout]     |
[INFO] [stdout] 112 | trait AssertKinds: Send + Sync + Clone {}
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lock.rs:55:21
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn try_lock(&self) -> Option<TryLock<T>> {
[INFO] [stdout]    |                     ^^^^^            ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn try_lock(&self) -> Option<TryLock<'_, T>> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/mpsc.rs:292:22
[INFO] [stdout]     |
[INFO] [stdout] 292 |     fn list() -> Box<Stream<Item=i32, Error=u32>> {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 292 |     fn list() -> Box<dyn Stream<Item=i32, Error=u32>> {
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `with-deprecated`
[INFO] [stdout]    --> src/oneshot.rs:313:11
[INFO] [stdout]     |
[INFO] [stdout] 313 |     #[cfg(feature = "with-deprecated")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `async-await-preview`
[INFO] [stdout]     = help: consider adding `with-deprecated` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:23
[INFO] [stdout]     |
[INFO] [stdout]   2 | #![deny(missing_docs, warnings, missing_debug_implementations)]
[INFO] [stdout]     |                       ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AssertSend` is never used
[INFO] [stdout]   --> tests/mpsc.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | trait AssertSend: Send {}
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `SinkMapErr` in tuple element 1 that must be used
[INFO] [stdout]    --> tests/mpsc.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |         a.send(2).join(b.send(())).wait().unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: sinks do nothing unless polled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> tests/mpsc.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     drop(readyrx.next().unwrap());
[INFO] [stdout]     |     ^^^^^-----------------------^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          argument has type `Result<(), ()>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 104 -     drop(readyrx.next().unwrap());
[INFO] [stdout] 104 +     let _ = readyrx.next().unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> tests/mpsc.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     drop(readyrx.next().unwrap());
[INFO] [stdout]     |     ^^^^^-----------------------^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          argument has type `Result<(), ()>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 106 -     drop(readyrx.next().unwrap());
[INFO] [stdout] 106 +     let _ = readyrx.next().unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> tests/mpsc.rs:456:5
[INFO] [stdout]     |
[INFO] [stdout] 456 |     drop(readyrx.wait());
[INFO] [stdout]     |     ^^^^^--------------^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          argument has type `Result<(), tokio_channel::oneshot::Canceled>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 456 -     drop(readyrx.wait());
[INFO] [stdout] 456 +     let _ = readyrx.wait();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::Atomic::<usize>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mpsc/mod.rs:731:49
[INFO] [stdout]     |
[INFO] [stdout] 731 |             let actual = self.inner.num_senders.compare_and_swap(curr, next, SeqCst);
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AssertKinds` is never used
[INFO] [stdout]    --> src/mpsc/mod.rs:112:7
[INFO] [stdout]     |
[INFO] [stdout] 112 | trait AssertKinds: Send + Sync + Clone {}
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lock.rs:55:21
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn try_lock(&self) -> Option<TryLock<T>> {
[INFO] [stdout]    |                     ^^^^^            ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn try_lock(&self) -> Option<TryLock<'_, T>> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.83s
[INFO] running `Command { std: "docker" "inspect" "078d1064e20490817ecddace5437beaa8b3a27514046fefe3fa81cecccd66b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "078d1064e20490817ecddace5437beaa8b3a27514046fefe3fa81cecccd66b2c", kill_on_drop: false }`
[INFO] [stdout] 078d1064e20490817ecddace5437beaa8b3a27514046fefe3fa81cecccd66b2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 56f0b3ccc3789b9715672dcba796f1e7485d4f3c59227587689557eb778ca30c
[INFO] running `Command { std: "docker" "start" "-a" "56f0b3ccc3789b9715672dcba796f1e7485d4f3c59227587689557eb778ca30c", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: unexpected `cfg` condition value: `with-deprecated`
[INFO] [stderr]    --> src/oneshot.rs:313:11
[INFO] [stderr]     |
[INFO] [stderr] 313 |     #[cfg(feature = "with-deprecated")]
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected values for `feature` are: `async-await-preview`
[INFO] [stderr]     = help: consider adding `with-deprecated` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:2:23
[INFO] [stderr]     |
[INFO] [stderr]   2 | #![deny(missing_docs, warnings, missing_debug_implementations)]
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unexpected_cfgs)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::Atomic::<usize>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/mpsc/mod.rs:731:49
[INFO] [stderr]     |
[INFO] [stderr] 731 |             let actual = self.inner.num_senders.compare_and_swap(curr, next, SeqCst);
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait `AssertKinds` is never used
[INFO] [stderr]    --> src/mpsc/mod.rs:112:7
[INFO] [stderr]     |
[INFO] [stderr] 112 | trait AssertKinds: Send + Sync + Clone {}
[INFO] [stderr]     |       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lock.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn try_lock(&self) -> Option<TryLock<T>> {
[INFO] [stderr]    |                     ^^^^^            ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]`
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn try_lock(&self) -> Option<TryLock<'_, T>> {
[INFO] [stderr]    |                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-channel` (lib) generated 4 warnings (run `cargo fix --lib -p tokio-channel` to apply 1 suggestion)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/mpsc.rs:292:22
[INFO] [stderr]     |
[INFO] [stderr] 292 |     fn list() -> Box<Stream<Item=i32, Error=u32>> {
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 292 |     fn list() -> Box<dyn Stream<Item=i32, Error=u32>> {
[INFO] [stderr]     |                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait `AssertSend` is never used
[INFO] [stderr]   --> tests/mpsc.rs:18:7
[INFO] [stderr]    |
[INFO] [stderr] 18 | trait AssertSend: Send {}
[INFO] [stderr]    |       ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `SinkMapErr` in tuple element 1 that must be used
[INFO] [stderr]    --> tests/mpsc.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         a.send(2).join(b.send(())).wait().unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: sinks do nothing unless polled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stderr]    --> tests/mpsc.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     drop(readyrx.next().unwrap());
[INFO] [stderr]     |     ^^^^^-----------------------^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          argument has type `Result<(), ()>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     |
[INFO] [stderr] 104 -     drop(readyrx.next().unwrap());
[INFO] [stderr] 104 +     let _ = readyrx.next().unwrap();
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stderr]    --> tests/mpsc.rs:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 |     drop(readyrx.next().unwrap());
[INFO] [stderr]     |     ^^^^^-----------------------^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          argument has type `Result<(), ()>`
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     |
[INFO] [stderr] 106 -     drop(readyrx.next().unwrap());
[INFO] [stderr] 106 +     let _ = readyrx.next().unwrap();
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stderr]    --> tests/mpsc.rs:456:5
[INFO] [stderr]     |
[INFO] [stderr] 456 |     drop(readyrx.wait());
[INFO] [stderr]     |     ^^^^^--------------^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          argument has type `Result<(), tokio_channel::oneshot::Canceled>`
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     |
[INFO] [stderr] 456 -     drop(readyrx.wait());
[INFO] [stderr] 456 +     let _ = readyrx.wait();
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-channel` (test "mpsc") generated 6 warnings (run `cargo fix --test "mpsc" -p tokio-channel` to apply 1 suggestion)
[INFO] [stderr] warning: `tokio-channel` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tokio_channel-d58d164576a1116e)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test lock::tests::smoke ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/mpsc.rs (/opt/rustwide/target/debug/deps/mpsc-d179568fb57288c3)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test recv_close_gets_none ... ok
[INFO] [stdout] test send_recv ... ok
[INFO] [stdout] test send_recv_no_buffer ... ok
[INFO] [stdout] test send_recv_threads ... ok
[INFO] [stdout] test send_shared_recv ... ok
[INFO] [stdout] test send_recv_threads_no_capacity ... ok
[INFO] [stdout] test try_send_2 ... ok
[INFO] [stdout] test try_send_fail ... ok
[INFO] [stdout] test tx_close_gets_none ... ok
[INFO] [stdout] test stress_shared_unbounded ... ok
[INFO] [stdout] test try_send_1 ... ok
[INFO] [stdout] test stress_receiver_multi_task_bounded_hard ... ok
[INFO] [stdout] test stress_poll_ready ... ok
[INFO] [stdout] test stress_shared_bounded_hard ... ok
[INFO] [stdout] test stress_drop_sender ... ok
[INFO] [stderr]      Running tests/mpsc-close.rs (/opt/rustwide/target/debug/deps/mpsc_close-d42ec03f6b9ef892)
[INFO] [stderr]      Running tests/oneshot.rs (/opt/rustwide/target/debug/deps/oneshot-2380235a9968fd1a)
[INFO] [stdout] test stress_close_receiver ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 11.32s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test close ... ok
[INFO] [stdout] test cancel_notifies ... ok
[INFO] [stdout] test is_canceled ... ok
[INFO] [stdout] test smoke_poll ... ok
[INFO] [stdout] test close_wakes ... ok
[INFO] [stdout] test cancel_sends ... ok
[INFO] [stderr]    Doc-tests tokio_channel
[INFO] [stdout] test cancel_lots ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.17s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/oneshot.rs - oneshot::channel (line 82) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.47s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "56f0b3ccc3789b9715672dcba796f1e7485d4f3c59227587689557eb778ca30c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56f0b3ccc3789b9715672dcba796f1e7485d4f3c59227587689557eb778ca30c", kill_on_drop: false }`
[INFO] [stdout] 56f0b3ccc3789b9715672dcba796f1e7485d4f3c59227587689557eb778ca30c
