[INFO] fetching crate exec-rs 0.1.2... [INFO] testing exec-rs-0.1.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1 [INFO] extracting crate exec-rs 0.1.2 into /workspace/builds/worker-5-tc1/source [INFO] started tweaking crates.io crate exec-rs 0.1.2 [INFO] finished tweaking crates.io crate exec-rs 0.1.2 [INFO] tweaked toml for crates.io crate exec-rs 0.1.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate exec-rs 0.1.2 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 29 packages to latest compatible versions [INFO] [stderr] Adding flurry v0.3.1 (available: v0.5.2) [INFO] [stderr] Adding parking_lot v0.11.2 (available: v0.12.4) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded flurry v0.3.1 [INFO] [stderr] Downloaded ahash v0.3.8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 751de3846b360b1c19a87984e277c1670505c4c6b912d9d1e50a4df3ddb20461 [INFO] running `Command { std: "docker" "start" "-a" "751de3846b360b1c19a87984e277c1670505c4c6b912d9d1e50a4df3ddb20461", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "751de3846b360b1c19a87984e277c1670505c4c6b912d9d1e50a4df3ddb20461", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "751de3846b360b1c19a87984e277c1670505c4c6b912d9d1e50a4df3ddb20461", kill_on_drop: false }` [INFO] [stdout] 751de3846b360b1c19a87984e277c1670505c4c6b912d9d1e50a4df3ddb20461 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 173c9aef15ece441ae47d7c36499a3a6189db8645a880daeeb1115db1acf0c00 [INFO] running `Command { std: "docker" "start" "-a" "173c9aef15ece441ae47d7c36499a3a6189db8645a880daeeb1115db1acf0c00", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling parking_lot_core v0.8.6 [INFO] [stderr] Compiling lock_api v0.3.4 [INFO] [stderr] Compiling num_cpus v1.17.0 [INFO] [stderr] Compiling ahash v0.3.8 [INFO] [stderr] Compiling instant v0.1.13 [INFO] [stderr] Compiling parking_lot_core v0.7.3 [INFO] [stderr] Compiling parking_lot v0.10.2 [INFO] [stderr] Compiling parking_lot v0.11.2 [INFO] [stderr] Compiling flurry v0.3.1 [INFO] [stderr] Compiling exec-rs v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/sync.rs:235:19 [INFO] [stdout] | [INFO] [stdout] 235 | task: Box<(dyn FnOnce() -> T + 'f)>, [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 235 - task: Box<(dyn FnOnce() -> T + 'f)>, [INFO] [stdout] 235 + task: Box T + 'f>, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/sync.rs:236:14 [INFO] [stdout] | [INFO] [stdout] 236 | ) -> Box<(dyn FnOnce() -> T + 'f)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 236 - ) -> Box<(dyn FnOnce() -> T + 'f)> { [INFO] [stdout] 236 + ) -> Box T + 'f> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.55s [INFO] running `Command { std: "docker" "inspect" "173c9aef15ece441ae47d7c36499a3a6189db8645a880daeeb1115db1acf0c00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "173c9aef15ece441ae47d7c36499a3a6189db8645a880daeeb1115db1acf0c00", kill_on_drop: false }` [INFO] [stdout] 173c9aef15ece441ae47d7c36499a3a6189db8645a880daeeb1115db1acf0c00 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a30b723f9535cc6fde159438462875d18be65c2c88c7e3cdf7539643e99166e [INFO] running `Command { std: "docker" "start" "-a" "7a30b723f9535cc6fde159438462875d18be65c2c88c7e3cdf7539643e99166e", kill_on_drop: false }` [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/sync.rs:235:19 [INFO] [stdout] | [INFO] [stdout] 235 | task: Box<(dyn FnOnce() -> T + 'f)>, [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 235 - task: Box<(dyn FnOnce() -> T + 'f)>, [INFO] [stdout] 235 + task: Box T + 'f>, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/sync.rs:236:14 [INFO] [stdout] | [INFO] [stdout] 236 | ) -> Box<(dyn FnOnce() -> T + 'f)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 236 - ) -> Box<(dyn FnOnce() -> T + 'f)> { [INFO] [stdout] 236 + ) -> Box T + 'f> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling exec-rs v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/sync.rs:235:19 [INFO] [stdout] | [INFO] [stdout] 235 | task: Box<(dyn FnOnce() -> T + 'f)>, [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 235 - task: Box<(dyn FnOnce() -> T + 'f)>, [INFO] [stdout] 235 + task: Box T + 'f>, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/sync.rs:236:14 [INFO] [stdout] | [INFO] [stdout] 236 | ) -> Box<(dyn FnOnce() -> T + 'f)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 236 - ) -> Box<(dyn FnOnce() -> T + 'f)> { [INFO] [stdout] 236 + ) -> Box T + 'f> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:396:23 [INFO] [stdout] | [INFO] [stdout] 396 | task: Box<(dyn FnOnce() -> i32 + 'f)>, [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 396 - task: Box<(dyn FnOnce() -> i32 + 'f)>, [INFO] [stdout] 396 + task: Box i32 + 'f>, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:397:18 [INFO] [stdout] | [INFO] [stdout] 397 | ) -> Box<(dyn FnOnce() -> i32 + 'f)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 397 - ) -> Box<(dyn FnOnce() -> i32 + 'f)> { [INFO] [stdout] 397 + ) -> Box i32 + 'f> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:408:23 [INFO] [stdout] | [INFO] [stdout] 408 | task: Box<(dyn FnOnce() -> i32 + 'f)>, [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 408 - task: Box<(dyn FnOnce() -> i32 + 'f)>, [INFO] [stdout] 408 + task: Box i32 + 'f>, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:409:18 [INFO] [stdout] | [INFO] [stdout] 409 | ) -> Box<(dyn FnOnce() -> i32 + 'f)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 409 - ) -> Box<(dyn FnOnce() -> i32 + 'f)> { [INFO] [stdout] 409 + ) -> Box i32 + 'f> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:446:23 [INFO] [stdout] | [INFO] [stdout] 446 | task: Box<(dyn FnOnce() -> &'a str + 'a)>, [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 446 - task: Box<(dyn FnOnce() -> &'a str + 'a)>, [INFO] [stdout] 446 + task: Box &'a str + 'a>, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:447:18 [INFO] [stdout] | [INFO] [stdout] 447 | ) -> Box<(dyn FnOnce() -> &'a str + 'a)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 447 - ) -> Box<(dyn FnOnce() -> &'a str + 'a)> { [INFO] [stdout] 447 + ) -> Box &'a str + 'a> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:599:27 [INFO] [stdout] | [INFO] [stdout] 599 | task: Box<(dyn FnOnce() -> u16)>, [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 599 - task: Box<(dyn FnOnce() -> u16)>, [INFO] [stdout] 599 + task: Box u16>, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:600:22 [INFO] [stdout] | [INFO] [stdout] 600 | ) -> Box<(dyn FnOnce() -> u16)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 600 - ) -> Box<(dyn FnOnce() -> u16)> { [INFO] [stdout] 600 + ) -> Box u16> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.32s [INFO] running `Command { std: "docker" "inspect" "7a30b723f9535cc6fde159438462875d18be65c2c88c7e3cdf7539643e99166e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a30b723f9535cc6fde159438462875d18be65c2c88c7e3cdf7539643e99166e", kill_on_drop: false }` [INFO] [stdout] 7a30b723f9535cc6fde159438462875d18be65c2c88c7e3cdf7539643e99166e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d75339db3c339ba9066b11e5b335204974964523bda53b0d71ab41d136b2aa47 [INFO] running `Command { std: "docker" "start" "-a" "d75339db3c339ba9066b11e5b335204974964523bda53b0d71ab41d136b2aa47", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/sync.rs:235:19 [INFO] [stderr] | [INFO] [stderr] 235 | task: Box<(dyn FnOnce() -> T + 'f)>, [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 235 - task: Box<(dyn FnOnce() -> T + 'f)>, [INFO] [stderr] 235 + task: Box T + 'f>, [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/sync.rs:236:14 [INFO] [stderr] | [INFO] [stderr] 236 | ) -> Box<(dyn FnOnce() -> T + 'f)> { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 236 - ) -> Box<(dyn FnOnce() -> T + 'f)> { [INFO] [stderr] 236 + ) -> Box T + 'f> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/lib.rs:396:23 [INFO] [stderr] | [INFO] [stderr] 396 | task: Box<(dyn FnOnce() -> i32 + 'f)>, [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 396 - task: Box<(dyn FnOnce() -> i32 + 'f)>, [INFO] [stderr] 396 + task: Box i32 + 'f>, [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/lib.rs:397:18 [INFO] [stderr] | [INFO] [stderr] 397 | ) -> Box<(dyn FnOnce() -> i32 + 'f)> { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 397 - ) -> Box<(dyn FnOnce() -> i32 + 'f)> { [INFO] [stderr] 397 + ) -> Box i32 + 'f> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/lib.rs:408:23 [INFO] [stderr] | [INFO] [stderr] 408 | task: Box<(dyn FnOnce() -> i32 + 'f)>, [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 408 - task: Box<(dyn FnOnce() -> i32 + 'f)>, [INFO] [stderr] 408 + task: Box i32 + 'f>, [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/lib.rs:409:18 [INFO] [stderr] | [INFO] [stderr] 409 | ) -> Box<(dyn FnOnce() -> i32 + 'f)> { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 409 - ) -> Box<(dyn FnOnce() -> i32 + 'f)> { [INFO] [stderr] 409 + ) -> Box i32 + 'f> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/lib.rs:446:23 [INFO] [stderr] | [INFO] [stderr] 446 | task: Box<(dyn FnOnce() -> &'a str + 'a)>, [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 446 - task: Box<(dyn FnOnce() -> &'a str + 'a)>, [INFO] [stderr] 446 + task: Box &'a str + 'a>, [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/lib.rs:447:18 [INFO] [stderr] | [INFO] [stderr] 447 | ) -> Box<(dyn FnOnce() -> &'a str + 'a)> { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 447 - ) -> Box<(dyn FnOnce() -> &'a str + 'a)> { [INFO] [stderr] 447 + ) -> Box &'a str + 'a> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/lib.rs:599:27 [INFO] [stderr] | [INFO] [stderr] 599 | task: Box<(dyn FnOnce() -> u16)>, [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 599 - task: Box<(dyn FnOnce() -> u16)>, [INFO] [stderr] 599 + task: Box u16>, [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/lib.rs:600:22 [INFO] [stderr] | [INFO] [stderr] 600 | ) -> Box<(dyn FnOnce() -> u16)> { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 600 - ) -> Box<(dyn FnOnce() -> u16)> { [INFO] [stderr] 600 + ) -> Box u16> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `exec-rs` (lib) generated 2 warnings (run `cargo fix --lib -p exec-rs` to apply 2 suggestions) [INFO] [stderr] warning: `exec-rs` (lib test) generated 10 warnings (2 duplicates) (run `cargo fix --lib -p exec-rs --tests` to apply 8 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/exec_rs-6c744f283d01615a) [INFO] [stdout] [INFO] [stdout] running 12 tests [INFO] [stdout] test tests::test_combined_invoker ... ok [INFO] [stdout] test tests::test_lifetime_iterator ... ok [INFO] [stdout] test tests::it_works ... ok [INFO] [stdout] test tests::test_lifetime_str_ref ... ok [INFO] [stdout] test tests::test_shorter_lifetime ... ok [INFO] [stdout] test tests::test_send_mode ... ok [INFO] [stdout] test tests::test_not_post_invoke_on_panic ... ok [INFO] [stdout] test tests::test_post_invoke_on_panic ... ok [INFO] [stdout] test sync::tests::test_remove_mutex_on_panic ... ok [INFO] [stdout] test sync::tests::test_concurrent_different_key ... ok [INFO] [stdout] test sync::tests::test_mutex_sync_executor ... ok [INFO] [stderr] Doc-tests exec_rs [INFO] [stdout] test sync::tests::it_works ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 38.36s [INFO] [stdout] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/sync.rs:235:19 [INFO] [stderr] | [INFO] [stderr] 235 | task: Box<(dyn FnOnce() -> T + 'f)>, [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 235 - task: Box<(dyn FnOnce() -> T + 'f)>, [INFO] [stderr] 235 + task: Box T + 'f>, [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/sync.rs:236:14 [INFO] [stderr] | [INFO] [stderr] 236 | ) -> Box<(dyn FnOnce() -> T + 'f)> { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 236 - ) -> Box<(dyn FnOnce() -> T + 'f)> { [INFO] [stderr] 236 + ) -> Box T + 'f> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: 2 warnings 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" "d75339db3c339ba9066b11e5b335204974964523bda53b0d71ab41d136b2aa47", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d75339db3c339ba9066b11e5b335204974964523bda53b0d71ab41d136b2aa47", kill_on_drop: false }` [INFO] [stdout] d75339db3c339ba9066b11e5b335204974964523bda53b0d71ab41d136b2aa47