[INFO] fetching crate exec-rs 0.1.2...
[INFO] testing exec-rs-0.1.2 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate exec-rs 0.1.2 into /workspace/builds/worker-5-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate exec-rs 0.1.2 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70b8b0a6ac1fdc317cd56464c1d732c5bd0de9b70d483d3a90d2e3638a56f03d
[INFO] running `Command { std: "docker" "start" "-a" "70b8b0a6ac1fdc317cd56464c1d732c5bd0de9b70d483d3a90d2e3638a56f03d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70b8b0a6ac1fdc317cd56464c1d732c5bd0de9b70d483d3a90d2e3638a56f03d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70b8b0a6ac1fdc317cd56464c1d732c5bd0de9b70d483d3a90d2e3638a56f03d", kill_on_drop: false }`
[INFO] [stdout] 70b8b0a6ac1fdc317cd56464c1d732c5bd0de9b70d483d3a90d2e3638a56f03d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 057d5f5aca98bf25a9b85942e5b7b931aed844c94e1f730f7ef2e35c7e94aeb1
[INFO] running `Command { std: "docker" "start" "-a" "057d5f5aca98bf25a9b85942e5b7b931aed844c94e1f730f7ef2e35c7e94aeb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[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 ahash v0.3.8
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling num_cpus v1.17.0
[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<dyn FnOnce() -> 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<dyn FnOnce() -> T + 'f> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `Command { std: "docker" "inspect" "057d5f5aca98bf25a9b85942e5b7b931aed844c94e1f730f7ef2e35c7e94aeb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "057d5f5aca98bf25a9b85942e5b7b931aed844c94e1f730f7ef2e35c7e94aeb1", kill_on_drop: false }`
[INFO] [stdout] 057d5f5aca98bf25a9b85942e5b7b931aed844c94e1f730f7ef2e35c7e94aeb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82aecab4d8a3a02545c3991d81e765381c9c65f29c99bf402db2bb9696bf6ade
[INFO] running `Command { std: "docker" "start" "-a" "82aecab4d8a3a02545c3991d81e765381c9c65f29c99bf402db2bb9696bf6ade", kill_on_drop: false }`
[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<dyn FnOnce() -> 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<dyn FnOnce() -> T + 'f> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[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<dyn FnOnce() -> 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<dyn FnOnce() -> 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<dyn FnOnce() -> 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<dyn FnOnce() -> 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<dyn FnOnce() -> 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<dyn FnOnce() -> 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<dyn FnOnce() -> &'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<dyn FnOnce() -> &'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<dyn FnOnce() -> 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<dyn FnOnce() -> u16> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "82aecab4d8a3a02545c3991d81e765381c9c65f29c99bf402db2bb9696bf6ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82aecab4d8a3a02545c3991d81e765381c9c65f29c99bf402db2bb9696bf6ade", kill_on_drop: false }`
[INFO] [stdout] 82aecab4d8a3a02545c3991d81e765381c9c65f29c99bf402db2bb9696bf6ade
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] da5ea061be80a0c6a8e0328609c38198d21bf74aa7c4b812113cd422928b6f15
[INFO] running `Command { std: "docker" "start" "-a" "da5ea061be80a0c6a8e0328609c38198d21bf74aa7c4b812113cd422928b6f15", 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<dyn FnOnce() -> 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<dyn FnOnce() -> 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<dyn FnOnce() -> 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<dyn FnOnce() -> 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<dyn FnOnce() -> 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<dyn FnOnce() -> 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<dyn FnOnce() -> &'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<dyn FnOnce() -> &'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<dyn FnOnce() -> 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<dyn FnOnce() -> 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 0.06s
[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::it_works ... ok
[INFO] [stdout] test tests::test_combined_invoker ... ok
[INFO] [stdout] test tests::test_lifetime_iterator ... 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 sync::tests::test_remove_mutex_on_panic ... 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_concurrent_different_key ... ok
[INFO] [stdout] test sync::tests::test_mutex_sync_executor ... ok
[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 38.27s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests exec_rs
[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<dyn FnOnce() -> 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<dyn FnOnce() -> 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" "da5ea061be80a0c6a8e0328609c38198d21bf74aa7c4b812113cd422928b6f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da5ea061be80a0c6a8e0328609c38198d21bf74aa7c4b812113cd422928b6f15", kill_on_drop: false }`
[INFO] [stdout] da5ea061be80a0c6a8e0328609c38198d21bf74aa7c4b812113cd422928b6f15