[INFO] cloning repository https://github.com/zesterer/flume [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zesterer/flume" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Fflume", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Fflume'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f3647c59e0051ca976fdd9c6c47cebd7e9da5d5c [INFO] checking zesterer/flume against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Fflume" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/zesterer/flume on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/zesterer/flume [INFO] finished tweaking git repo https://github.com/zesterer/flume [INFO] tweaked toml for git repo https://github.com/zesterer/flume written to /workspace/builds/worker-5/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded nanorand v0.4.4 [INFO] [stderr] Downloaded spinning_top v0.2.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fa516eb588aff78609ab548ffd9a41daefbdacea8cb62cb4734bf513462b4e53 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "fa516eb588aff78609ab548ffd9a41daefbdacea8cb62cb4734bf513462b4e53", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fa516eb588aff78609ab548ffd9a41daefbdacea8cb62cb4734bf513462b4e53", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa516eb588aff78609ab548ffd9a41daefbdacea8cb62cb4734bf513462b4e53", kill_on_drop: false }` [INFO] [stdout] fa516eb588aff78609ab548ffd9a41daefbdacea8cb62cb4734bf513462b4e53 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 16476eda49d3a5c288ad792d876b3c857b4b7560852f96ab4977b9e56f8e158b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "16476eda49d3a5c288ad792d876b3c857b4b7560852f96ab4977b9e56f8e158b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Checking futures-core v0.3.7 [INFO] [stderr] Checking futures-io v0.3.7 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Checking fastrand v1.4.0 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Checking event-listener v2.5.1 [INFO] [stderr] Compiling getrandom v0.2.0 [INFO] [stderr] Checking async-task v4.0.3 [INFO] [stderr] Checking vec-arena v1.0.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking regex-syntax v0.6.20 [INFO] [stderr] Checking half v1.6.0 [INFO] [stderr] Checking ppv-lite86 v0.2.9 [INFO] [stderr] Checking oorandom v11.1.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.0 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking lock_api v0.4.1 [INFO] [stderr] Checking async-mutex v1.4.0 [INFO] [stderr] Checking futures-channel v0.3.7 [INFO] [stderr] Checking async-channel v1.5.1 [INFO] [stderr] Checking log v0.4.11 [INFO] [stderr] Checking futures-lite v1.11.2 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking serde_json v1.0.59 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Checking spinning_top v0.2.2 [INFO] [stderr] Checking futures-util v0.3.7 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking crossbeam-epoch v0.9.0 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking bstr v0.2.14 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking async-executor v1.3.0 [INFO] [stderr] Checking blocking v1.0.2 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking nb-connect v1.0.2 [INFO] [stderr] Checking polling v2.0.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking regex v1.4.1 [INFO] [stderr] Checking plotters v0.2.15 [INFO] [stderr] Checking rayon-core v1.9.0 [INFO] [stderr] Checking tinytemplate v1.1.0 [INFO] [stderr] Checking nanorand v0.4.4 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking async-io v1.1.10 [INFO] [stderr] Checking flume v0.9.1 (/opt/rustwide/workdir) [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking async-global-executor v1.4.3 [INFO] [stderr] Checking async-std v1.6.5 [INFO] [stderr] Checking futures-executor v0.3.7 [INFO] [stderr] Checking futures v0.3.7 [INFO] [stderr] Checking criterion v0.3.3 [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: unnecessary braces around block return value [INFO] [stdout] --> tests/mpsc.rs:1689:34 [INFO] [stdout] | [INFO] [stdout] 1689 | _bar = rx2.recv() => { panic!() } [INFO] [stdout] | ^^^^^^^^^^^^ help: remove these braces [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_braces)]` on by default [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] | ^^^^^^^^^^^^ help: remove these braces [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] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces [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] | ^^^^^^^^^^^^ help: remove these braces [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] | ^^^^^^^^^^^^^^^ help: remove these braces [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] | ^^^^^^^^^^^^^^^ help: remove these braces [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] | ^^^^^^^^^^^^^^^ help: remove these braces [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] | ^^^^^^^^^^^^^^^ help: remove these braces [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] | ^^^^^^^^^^^^ help: remove these braces [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] | ^^^^^^^^^^^^ help: remove these braces [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] | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces [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] | ^^^^^^^^^^^^ help: remove these braces [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: variable does not need to be mutable [INFO] [stdout] --> tests/async.rs:107:1 [INFO] [stdout] | [INFO] [stdout] 107 | #[async_std::test] [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 variable: `item` [INFO] [stdout] --> tests/stream.rs:227:24 [INFO] [stdout] | [INFO] [stdout] 227 | .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: variable does not need to be mutable [INFO] [stdout] --> tests/stream.rs:13:14 [INFO] [stdout] | [INFO] [stdout] 13 | let (tx, mut rx) = 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/stream.rs:34:14 [INFO] [stdout] | [INFO] [stdout] 34 | let (tx, mut rx) = bounded::(0); [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/stream.rs:51:14 [INFO] [stdout] | [INFO] [stdout] 51 | let (tx, mut rx) = bounded::(10); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/stream.rs:91:14 [INFO] [stdout] | [INFO] [stdout] 91 | let (tx, mut rx) = unbounded(); [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/stream.rs:166:9 [INFO] [stdout] | [INFO] [stdout] 166 | let mut count = Arc::new(AtomicUsize::new(0)); [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/stream.rs:187:14 [INFO] [stdout] | [INFO] [stdout] 187 | let (tx, mut rx) = unbounded::<()>(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Poll` that must be used [INFO] [stdout] --> tests/stream.rs:191:5 [INFO] [stdout] | [INFO] [stdout] 191 | Pin::new(&mut stream).poll_next(cx); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Poll` may be a `Pending` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 56.35s [INFO] running `Command { std: "docker" "inspect" "16476eda49d3a5c288ad792d876b3c857b4b7560852f96ab4977b9e56f8e158b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16476eda49d3a5c288ad792d876b3c857b4b7560852f96ab4977b9e56f8e158b", kill_on_drop: false }` [INFO] [stdout] 16476eda49d3a5c288ad792d876b3c857b4b7560852f96ab4977b9e56f8e158b