[INFO] fetching crate flume 0.11.0... [INFO] checking flume-0.11.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] extracting crate flume 0.11.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate flume 0.11.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate flume 0.11.0 [INFO] finished tweaking crates.io crate flume 0.11.0 [INFO] tweaked toml for crates.io crate flume 0.11.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate flume 0.11.0 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition [INFO] [stderr] (in the `futures-core` dependency) [INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition [INFO] [stderr] (in the `futures-sink` dependency) [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1202749e1cff54eb26e09f3d328eefcd6363dc5190cb42be370d8dc9fec09ddd [INFO] running `Command { std: "docker" "start" "-a" "1202749e1cff54eb26e09f3d328eefcd6363dc5190cb42be370d8dc9fec09ddd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1202749e1cff54eb26e09f3d328eefcd6363dc5190cb42be370d8dc9fec09ddd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1202749e1cff54eb26e09f3d328eefcd6363dc5190cb42be370d8dc9fec09ddd", kill_on_drop: false }` [INFO] [stdout] 1202749e1cff54eb26e09f3d328eefcd6363dc5190cb42be370d8dc9fec09ddd [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9b727f99f7b59952dab86ee000ff06d87a7d29d24db10f607139293e640b1fb1 [INFO] running `Command { std: "docker" "start" "-a" "9b727f99f7b59952dab86ee000ff06d87a7d29d24db10f607139293e640b1fb1", kill_on_drop: false }` [INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition [INFO] [stderr] (in the `futures-core` dependency) [INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition [INFO] [stderr] (in the `futures-sink` dependency) [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling futures-core v0.3.28 [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling unicode-ident v1.0.11 [INFO] [stderr] Checking pin-project-lite v0.2.12 [INFO] 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async-global-executor v2.3.1 [INFO] [stderr] Checking csv v1.2.2 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking regex v1.9.3 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking nanorand v0.7.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Compiling serde_derive v1.0.183 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking flume v0.11.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling futures-macro v0.3.28 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Compiling async-attributes v1.1.2 [INFO] [stderr] Checking tokio v1.31.0 [INFO] [stderr] Checking async-std v1.12.0 [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stderr] Checking futures-executor v0.3.28 [INFO] [stderr] Checking futures v0.3.28 [INFO] [stdout] warning: unused import: `RecvError` [INFO] [stdout] --> tests/list.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | use flume::{RecvError, RecvTimeoutError, TryRecvError}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RecvError` [INFO] [stdout] --> tests/array.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | use flume::{RecvError, RecvTimeoutError, TryRecvError}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RecvError` [INFO] [stdout] --> tests/zero.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | use flume::{RecvError, RecvTimeoutError, TryRecvError}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> tests/basic.rs:357:28 [INFO] [stdout] | [INFO] [stdout] 357 | struct MessageWithoutDebug(u32); [INFO] [stdout] | ------------------- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1689:34 [INFO] [stdout] | [INFO] [stdout] 1689 | _bar = rx2.recv() => { panic!() } [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_braces)]` on by default [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 1689 - _bar = rx2.recv() => { panic!() } [INFO] [stdout] 1689 + _bar = rx2.recv() => panic!() [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1693:34 [INFO] [stdout] | [INFO] [stdout] 1693 | _foo = rx1.recv() => { panic!() }, [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 1693 - _foo = rx1.recv() => { panic!() }, [INFO] [stdout] 1693 + _foo = rx1.recv() => panic!(), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1694:33 [INFO] [stdout] | [INFO] [stdout] 1694 | bar = rx2.recv() => { assert_eq!(bar.unwrap(), 2) } [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 1694 - bar = rx2.recv() => { assert_eq!(bar.unwrap(), 2) } [INFO] [stdout] 1694 + bar = rx2.recv() => assert_eq!(bar.unwrap(), 2) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1699:34 [INFO] [stdout] | [INFO] [stdout] 1699 | _bar = rx2.recv() => { panic!() } [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 1699 - _bar = rx2.recv() => { panic!() } [INFO] [stdout] 1699 + _bar = rx2.recv() => panic!() [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1716:34 [INFO] [stdout] | [INFO] [stdout] 1716 | _foo = rx1.recv() => { panic!("1") }, [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 1716 - _foo = rx1.recv() => { panic!("1") }, [INFO] [stdout] 1716 + _foo = rx1.recv() => panic!("1"), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1717:34 [INFO] [stdout] | [INFO] [stdout] 1717 | _foo = rx2.recv() => { panic!("2") }, [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 1717 - _foo = rx2.recv() => { panic!("2") }, [INFO] [stdout] 1717 + _foo = rx2.recv() => panic!("2"), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1718:34 [INFO] [stdout] | [INFO] [stdout] 1718 | _foo = rx3.recv() => { panic!("3") }, [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 1718 - _foo = rx3.recv() => { panic!("3") }, [INFO] [stdout] 1718 + _foo = rx3.recv() => panic!("3"), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1719:34 [INFO] [stdout] | [INFO] [stdout] 1719 | _foo = rx4.recv() => { panic!("4") }, [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 1719 - _foo = rx4.recv() => { panic!("4") }, [INFO] [stdout] 1719 + _foo = rx4.recv() => panic!("4"), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1731:33 [INFO] [stdout] | [INFO] [stdout] 1731 | _a1 = rx1.recv() => { panic!() }, [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 1731 - _a1 = rx1.recv() => { panic!() }, [INFO] [stdout] 1731 + _a1 = rx1.recv() => panic!(), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1755:32 [INFO] [stdout] | [INFO] [stdout] 1755 | _b = rx2.recv() => { panic!() } [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 1755 - _b = rx2.recv() => { panic!() } [INFO] [stdout] 1755 + _b = rx2.recv() => panic!() [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1759:31 [INFO] [stdout] | [INFO] [stdout] 1759 | a = rx1.recv() => { assert!(a.is_err()) }, [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 1759 - a = rx1.recv() => { assert!(a.is_err()) }, [INFO] [stdout] 1759 + a = rx1.recv() => assert!(a.is_err()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1760:32 [INFO] [stdout] | [INFO] [stdout] 1760 | _b = rx2.recv() => { panic!() } [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 1760 - _b = rx2.recv() => { panic!() } [INFO] [stdout] 1760 + _b = rx2.recv() => panic!() [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> tests/stream.rs:248:24 [INFO] [stdout] | [INFO] [stdout] 248 | .for_each(|item| async move {}); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> tests/stream.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | tx.send(42); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 37 | let _ = tx.send(42); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 45.04s [INFO] running `Command { std: "docker" "inspect" "9b727f99f7b59952dab86ee000ff06d87a7d29d24db10f607139293e640b1fb1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b727f99f7b59952dab86ee000ff06d87a7d29d24db10f607139293e640b1fb1", kill_on_drop: false }` [INFO] [stdout] 9b727f99f7b59952dab86ee000ff06d87a7d29d24db10f607139293e640b1fb1