[INFO] fetching crate flume 0.9.1...
[INFO] testing flume-0.9.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate flume 0.9.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate flume 0.9.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flume 0.9.1
[INFO] finished tweaking crates.io crate flume 0.9.1
[INFO] tweaked toml for crates.io crate flume 0.9.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate flume 0.9.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cb94a47d38a02e72ba3862e6ab725e55ad8edf5aee30775fb94fe5b1a3a191b
[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" "1cb94a47d38a02e72ba3862e6ab725e55ad8edf5aee30775fb94fe5b1a3a191b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cb94a47d38a02e72ba3862e6ab725e55ad8edf5aee30775fb94fe5b1a3a191b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb94a47d38a02e72ba3862e6ab725e55ad8edf5aee30775fb94fe5b1a3a191b", kill_on_drop: false }`
[INFO] [stdout] 1cb94a47d38a02e72ba3862e6ab725e55ad8edf5aee30775fb94fe5b1a3a191b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7327d7ac20d0a7b821045bd0c069ea03a0a18c312ca396a2944533c740ff035f
[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" "7327d7ac20d0a7b821045bd0c069ea03a0a18c312ca396a2944533c740ff035f", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling spinning_top v0.2.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling flume v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.04s
[INFO] running `Command { std: "docker" "inspect" "7327d7ac20d0a7b821045bd0c069ea03a0a18c312ca396a2944533c740ff035f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7327d7ac20d0a7b821045bd0c069ea03a0a18c312ca396a2944533c740ff035f", kill_on_drop: false }`
[INFO] [stdout] 7327d7ac20d0a7b821045bd0c069ea03a0a18c312ca396a2944533c740ff035f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6527c484ac11e727001ef517d00482da15638fb8baad3b7cb6f9fb47419c414
[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" "e6527c484ac11e727001ef517d00482da15638fb8baad3b7cb6f9fb47419c414", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling oorandom v11.1.0
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling regex v1.3.5
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling async-task v1.3.1
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling bstr v0.2.11
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling plotters v0.2.12
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling criterion-plot v0.4.1
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling tinytemplate v1.0.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling pin-project v0.4.23
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling criterion v0.3.1
[INFO] [stderr]    Compiling broadcaster v1.0.0
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling async-std v1.5.0
[INFO] [stderr]    Compiling flume v0.9.1 (/opt/rustwide/workdir)
[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: 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: variable does not need to be mutable
[INFO] [stdout]   --> tests/async.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     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/async.rs:29:14
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let (tx, mut rx) = 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]   --> tests/async.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let (tx, mut rx) = bounded::<i32>(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/async.rs:63:14
[INFO] [stdout]    |
[INFO] [stdout] 63 |     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/async.rs:80:14
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let (tx, mut rx) = bounded::<i32>(10);
[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:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     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] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/stream.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let (tx, mut rx) = bounded::<i32>(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:50:14
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let (tx, mut rx) = bounded::<i32>(10);
[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:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |     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:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |     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:185:14
[INFO] [stdout]     |
[INFO] [stdout] 185 |     let (tx, mut rx) = unbounded::<()>();
[INFO] [stdout]     |              ----^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> tests/stream.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 | /     recv_fut
[INFO] [stdout] 149 | |         .timeout(Duration::from_secs(5))
[INFO] [stdout] 150 | |         .map_err(|_| panic!("Receive timed out!"))
[INFO] [stdout] 151 | |         .await;
[INFO] [stdout]     | |_______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::task::Poll` that must be used
[INFO] [stdout]    --> tests/stream.rs:189:5
[INFO] [stdout]     |
[INFO] [stdout] 189 |     Pin::new(&mut stream).poll_next(cx);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Poll` may be a `Pending` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> tests/async.rs:168:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | /     recv_fut
[INFO] [stdout] 169 | |         .timeout(Duration::from_secs(5))
[INFO] [stdout] 170 | |         .map_err(|_| panic!("Receive timed out!"))
[INFO] [stdout] 171 | |         .await;
[INFO] [stdout]     | |_______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[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: 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: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 44s
[INFO] running `Command { std: "docker" "inspect" "e6527c484ac11e727001ef517d00482da15638fb8baad3b7cb6f9fb47419c414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6527c484ac11e727001ef517d00482da15638fb8baad3b7cb6f9fb47419c414", kill_on_drop: false }`
[INFO] [stdout] e6527c484ac11e727001ef517d00482da15638fb8baad3b7cb6f9fb47419c414
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 96328ac7a6822cefcce8d35dc6b5b55a05b507f5bbeaad719e4275cf568881df
[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" "96328ac7a6822cefcce8d35dc6b5b55a05b507f5bbeaad719e4275cf568881df", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `RecvError`
[INFO] [stderr]   --> tests/array.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 | use flume::{RecvError, RecvTimeoutError, TryRecvError};
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]     --> tests/mpsc.rs:1689:34
[INFO] [stderr]      |
[INFO] [stderr] 1689 |             _bar = rx2.recv() => { panic!() }
[INFO] [stderr]      |                                  ^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]     --> tests/mpsc.rs:1693:34
[INFO] [stderr]      |
[INFO] [stderr] 1693 |             _foo = rx1.recv() => { panic!() },
[INFO] [stderr]      |                                  ^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]     --> tests/mpsc.rs:1694:33
[INFO] [stderr]      |
[INFO] [stderr] 1694 |             bar = rx2.recv() => { assert_eq!(bar.unwrap(), 2) }
[INFO] [stderr]      |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]     --> tests/mpsc.rs:1699:34
[INFO] [stderr]      |
[INFO] [stderr] 1699 |             _bar = rx2.recv() => { panic!() }
[INFO] [stderr]      |                                  ^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]     --> tests/mpsc.rs:1716:34
[INFO] [stderr]      |
[INFO] [stderr] 1716 |             _foo = rx1.recv() => { panic!("1") },
[INFO] [stderr]      |                                  ^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]     --> tests/mpsc.rs:1717:34
[INFO] [stderr]      |
[INFO] [stderr] 1717 |             _foo = rx2.recv() => { panic!("2") },
[INFO] [stderr]      |                                  ^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]     --> tests/mpsc.rs:1718:34
[INFO] [stderr]      |
[INFO] [stderr] 1718 |             _foo = rx3.recv() => { panic!("3") },
[INFO] [stderr]      |                                  ^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]     --> tests/mpsc.rs:1719:34
[INFO] [stderr]      |
[INFO] [stderr] 1719 |             _foo = rx4.recv() => { panic!("4") },
[INFO] [stderr]      |                                  ^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]     --> tests/mpsc.rs:1731:33
[INFO] [stderr]      |
[INFO] [stderr] 1731 |             _a1 = rx1.recv() => { panic!() },
[INFO] [stderr]      |                                 ^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]     --> tests/mpsc.rs:1755:32
[INFO] [stderr]      |
[INFO] [stderr] 1755 |             _b = rx2.recv() => { panic!() }
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]     --> tests/mpsc.rs:1759:31
[INFO] [stderr]      |
[INFO] [stderr] 1759 |             a = rx1.recv() => { assert!(a.is_err()) },
[INFO] [stderr]      |                               ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]     --> tests/mpsc.rs:1760:32
[INFO] [stderr]      |
[INFO] [stderr] 1760 |             _b = rx2.recv() => { panic!() }
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/stream.rs:12:14
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let (tx, mut rx) = unbounded();
[INFO] [stderr]    |              ----^^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/stream.rs:33:14
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let (tx, mut rx) = bounded::<i32>(0);
[INFO] [stderr]    |              ----^^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/stream.rs:50:14
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let (tx, mut rx) = bounded::<i32>(10);
[INFO] [stderr]    |              ----^^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RecvError`
[INFO] [stderr]   --> tests/list.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 | use flume::{RecvError, RecvTimeoutError, TryRecvError};
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/stream.rs:90:14
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let (tx, mut rx) = unbounded();
[INFO] [stderr]    |              ----^^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RecvError`
[INFO] [stderr]   --> tests/zero.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 | use flume::{RecvError, RecvTimeoutError, TryRecvError};
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/stream.rs:164:9
[INFO] [stderr]     |
[INFO] [stderr] 164 |     let mut count = Arc::new(AtomicUsize::new(0));
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/stream.rs:185:14
[INFO] [stderr]     |
[INFO] [stderr] 185 |     let (tx, mut rx) = unbounded::<()>();
[INFO] [stderr]     |              ----^^
[INFO] [stderr]     |              |
[INFO] [stderr]     |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> tests/stream.rs:148:5
[INFO] [stderr]     |
[INFO] [stderr] 148 | /     recv_fut
[INFO] [stderr] 149 | |         .timeout(Duration::from_secs(5))
[INFO] [stderr] 150 | |         .map_err(|_| panic!("Receive timed out!"))
[INFO] [stderr] 151 | |         .await;
[INFO] [stderr]     | |_______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::task::Poll` that must be used
[INFO] [stderr]    --> tests/stream.rs:189:5
[INFO] [stderr]     |
[INFO] [stderr] 189 |     Pin::new(&mut stream).poll_next(cx);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Poll` may be a `Pending` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/async.rs:12:14
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let (tx, mut rx) = unbounded();
[INFO] [stderr]    |              ----^^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/async.rs:29:14
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let (tx, mut rx) = bounded(1);
[INFO] [stderr]    |              ----^^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/async.rs:46:14
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let (tx, mut rx) = bounded::<i32>(0);
[INFO] [stderr]    |              ----^^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/async.rs:63:14
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let (tx, mut rx) = bounded(0);
[INFO] [stderr]    |              ----^^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/async.rs:80:14
[INFO] [stderr]    |
[INFO] [stderr] 80 |     let (tx, mut rx) = bounded::<i32>(10);
[INFO] [stderr]    |              ----^^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> tests/async.rs:168:5
[INFO] [stderr]     |
[INFO] [stderr] 168 | /     recv_fut
[INFO] [stderr] 169 | |         .timeout(Duration::from_secs(5))
[INFO] [stderr] 170 | |         .map_err(|_| panic!("Receive timed out!"))
[INFO] [stderr] 171 | |         .await;
[INFO] [stderr]     | |_______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/flume-c6556f83025aa40d
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/after-7a2014b43e3bb3de
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/array-4d572dced1b2ee8c
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test capacity ... ok
[INFO] [stdout] test recv_after_disconnect ... ok
[INFO] [stdout] test len_empty_full ... ok
[INFO] [stdout] test send_after_disconnect ... ok
[INFO] [stdout] test channel_through_channel ... ok
[INFO] [stdout] test linearizable ... ok
[INFO] [stdout] test len ... ok
[INFO] [stdout] test disconnect_wakes_sender ... ok
[INFO] [stdout] test disconnect_wakes_receiver ... ok
[INFO] [stdout] test mpmc ... ok
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test recv_timeout ... ok
[INFO] [stdout] test spsc ... ok
[INFO] [stdout] test try_send ... ok
[INFO] [stdout] test try_recv ... ok
[INFO] [stdout] test send_timeout ... ok
[INFO] [stdout] test stress_timeout_two_threads ... ok
[INFO] [stdout] test send ... ok
[INFO] [stdout] test recv ... ok
[INFO] [stdout] test drops ... ok
[INFO] [stdout] test stress_iter ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/async-c0bcdc9fceaf90e1
[INFO] [stdout] test stress_oneshot ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test parallel_async_receivers ... ok
[INFO] [stdout] test async_send ... ok
[INFO] [stdout] test async_recv ... ok
[INFO] [stdout] test async_send_disconnect ... ok
[INFO] [stdout] test async_recv_disconnect ... ok
[INFO] [stdout] test async_send_1_million_no_drop_or_reorder ... ok
[INFO] [stdout] test async_recv_drop_recv ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/basic-c16492c5ab591c94
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test disconnect_tx ... ok
[INFO] [stdout] test disconnect_rx ... ok
[INFO] [stdout] test drain ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test send_recv ... ok
[INFO] [stdout] test std_error_without_debug ... ok
[INFO] [stdout] test try_send ... ok
[INFO] [stdout] test try_iter ... ok
[INFO] [stdout] test recv_timeout_missed_send ... ok
[INFO] [stdout] test robin ... ok
[INFO] [stdout] test recv_deadline ... ok
[INFO] [stdout] test recv_timeout ... ok
[INFO] [stdout] test send_timeout ... ok
[INFO] [stdout] test iter_threaded ... ok
[INFO] [stdout] test hydra ... ok
[INFO] [stdout] test rendezvous ... ok
[INFO] [stdout] test select_general ... test select_general has been running for over 60 seconds
[INFO] [stdout] test send_bounded ... test send_bounded has been running for over 60 seconds
[INFO] [stdout] test send_bounded ... ok
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "96328ac7a6822cefcce8d35dc6b5b55a05b507f5bbeaad719e4275cf568881df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96328ac7a6822cefcce8d35dc6b5b55a05b507f5bbeaad719e4275cf568881df", kill_on_drop: false }`
[INFO] [stdout] 96328ac7a6822cefcce8d35dc6b5b55a05b507f5bbeaad719e4275cf568881df
