[INFO] fetching crate corosensei-awaiter-trait 0.2.8...
[INFO] testing corosensei-awaiter-trait-0.2.8 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate corosensei-awaiter-trait 0.2.8 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate corosensei-awaiter-trait 0.2.8
[INFO] finished tweaking crates.io crate corosensei-awaiter-trait 0.2.8
[INFO] tweaked toml for crates.io crate corosensei-awaiter-trait 0.2.8 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate corosensei-awaiter-trait 0.2.8 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate corosensei-awaiter-trait 0.2.8 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a8653fcffa0cd1b2d1fca8acd1eb6677011e76bcf2aa6c4171f60d923de5d7a
[INFO] running `Command { std: "docker" "start" "-a" "5a8653fcffa0cd1b2d1fca8acd1eb6677011e76bcf2aa6c4171f60d923de5d7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a8653fcffa0cd1b2d1fca8acd1eb6677011e76bcf2aa6c4171f60d923de5d7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a8653fcffa0cd1b2d1fca8acd1eb6677011e76bcf2aa6c4171f60d923de5d7a", kill_on_drop: false }`
[INFO] [stdout] 5a8653fcffa0cd1b2d1fca8acd1eb6677011e76bcf2aa6c4171f60d923de5d7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5c0b884587f022a4d8fc337865fe151eecfd1ba38630e131f7351dfe066b019
[INFO] running `Command { std: "docker" "start" "-a" "d5c0b884587f022a4d8fc337865fe151eecfd1ba38630e131f7351dfe066b019", kill_on_drop: false }`
[INFO] [stderr]    Compiling corosensei v0.2.2
[INFO] [stderr]    Compiling awaiter-trait v0.2.8
[INFO] [stderr]    Compiling spin v0.10.0
[INFO] [stderr]    Compiling corosensei-awaiter-trait v0.2.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:75:29
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout]    |                             ^                                                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 -             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout] 75 +             let mut f: &mut dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> () =
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 mut t => match Some(f) {
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "d5c0b884587f022a4d8fc337865fe151eecfd1ba38630e131f7351dfe066b019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5c0b884587f022a4d8fc337865fe151eecfd1ba38630e131f7351dfe066b019", kill_on_drop: false }`
[INFO] [stdout] d5c0b884587f022a4d8fc337865fe151eecfd1ba38630e131f7351dfe066b019
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1f907d3abd89fd82e7fa8a835bf0371b41c28d40f24cc881e251a58f8a4972c
[INFO] running `Command { std: "docker" "start" "-a" "f1f907d3abd89fd82e7fa8a835bf0371b41c28d40f24cc881e251a58f8a4972c", kill_on_drop: false }`
[INFO] [stderr]    Compiling corosensei-awaiter-trait v0.2.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:75:29
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout]    |                             ^                                                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 -             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout] 75 +             let mut f: &mut dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> () =
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 mut t => match Some(f) {
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:75:29
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout]    |                             ^                                                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 -             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout] 75 +             let mut f: &mut dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> () =
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 mut t => match Some(f) {
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "f1f907d3abd89fd82e7fa8a835bf0371b41c28d40f24cc881e251a58f8a4972c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1f907d3abd89fd82e7fa8a835bf0371b41c28d40f24cc881e251a58f8a4972c", kill_on_drop: false }`
[INFO] [stdout] f1f907d3abd89fd82e7fa8a835bf0371b41c28d40f24cc881e251a58f8a4972c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eb76c346c49d2dc7252bdff7b01add461ea37df4ec88c5ad674c96dd724f42a1
[INFO] running `Command { std: "docker" "start" "-a" "eb76c346c49d2dc7252bdff7b01add461ea37df4ec88c5ad674c96dd724f42a1", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:75:29
[INFO] [stderr]    |
[INFO] [stderr] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stderr]    |                             ^                                                             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 75 -             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stderr] 75 +             let mut f: &mut dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> () =
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:67:17
[INFO] [stderr]    |
[INFO] [stderr] 67 |                 mut t => match Some(f) {
[INFO] [stderr]    |                 ----^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:75:17
[INFO] [stderr]    |
[INFO] [stderr] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stderr]    |                 ----^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `corosensei-awaiter-trait` (lib) generated 3 warnings (run `cargo fix --lib -p corosensei-awaiter-trait` to apply 3 suggestions)
[INFO] [stderr] warning: `corosensei-awaiter-trait` (lib test) generated 3 warnings (3 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/corosensei_awaiter_trait-d30344e4669848b4)
[INFO] [stderr]    Doc-tests corosensei_awaiter_trait
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:75:29
[INFO] [stderr]    |
[INFO] [stderr] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stderr]    |                             ^                                                             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 75 -             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stderr] 75 +             let mut f: &mut dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> () =
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eb76c346c49d2dc7252bdff7b01add461ea37df4ec88c5ad674c96dd724f42a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb76c346c49d2dc7252bdff7b01add461ea37df4ec88c5ad674c96dd724f42a1", kill_on_drop: false }`
[INFO] [stdout] eb76c346c49d2dc7252bdff7b01add461ea37df4ec88c5ad674c96dd724f42a1