[INFO] fetching crate floui 0.1.5...
[INFO] testing floui-0.1.5 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate floui 0.1.5 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate floui 0.1.5
[INFO] finished tweaking crates.io crate floui 0.1.5
[INFO] tweaked toml for crates.io crate floui 0.1.5 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate floui 0.1.5 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 floui 0.1.5 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7f04744ced55ef0c00748d505771d50d0a7baf752c138aab4d6b6170b0372cc8
[INFO] running `Command { std: "docker" "start" "-a" "7f04744ced55ef0c00748d505771d50d0a7baf752c138aab4d6b6170b0372cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f04744ced55ef0c00748d505771d50d0a7baf752c138aab4d6b6170b0372cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f04744ced55ef0c00748d505771d50d0a7baf752c138aab4d6b6170b0372cc8", kill_on_drop: false }`
[INFO] [stdout] 7f04744ced55ef0c00748d505771d50d0a7baf752c138aab4d6b6170b0372cc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1fe1ae6de3d036133ac0ad374ce7c196c267d9e183f7c98ef5baf3bbcf7ad787
[INFO] running `Command { std: "docker" "start" "-a" "1fe1ae6de3d036133ac0ad374ce7c196c267d9e183f7c98ef5baf3bbcf7ad787", kill_on_drop: false }`
[INFO] [stderr]    Compiling floui-sys v0.1.4
[INFO] [stderr]    Compiling floui v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/widgets/button.rs:42:29
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 let f: &mut (dyn FnMut(&Button)) = &mut **a;
[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] 42 -                 let f: &mut (dyn FnMut(&Button)) = &mut **a;
[INFO] [stdout] 42 +                 let f: &mut dyn FnMut(&Button)  = &mut **a;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/widgets/button.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 let f: &mut (dyn FnMut(&Toggle)) = &mut **a;
[INFO] [stdout]     |                             ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -                 let f: &mut (dyn FnMut(&Toggle)) = &mut **a;
[INFO] [stdout] 103 +                 let f: &mut dyn FnMut(&Toggle)  = &mut **a;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/widgets/button.rs:174:29
[INFO] [stdout]     |
[INFO] [stdout] 174 |                 let f: &mut (dyn FnMut(&Check)) = &mut **a;
[INFO] [stdout]     |                             ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 174 -                 let f: &mut (dyn FnMut(&Check)) = &mut **a;
[INFO] [stdout] 174 +                 let f: &mut dyn FnMut(&Check)  = &mut **a;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/widgets/misc.rs:98:29
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 let f: &mut (dyn FnMut(&Slider)) = &mut **a;
[INFO] [stdout]    |                             ^                  ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 98 -                 let f: &mut (dyn FnMut(&Slider)) = &mut **a;
[INFO] [stdout] 98 +                 let f: &mut dyn FnMut(&Slider)  = &mut **a;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "1fe1ae6de3d036133ac0ad374ce7c196c267d9e183f7c98ef5baf3bbcf7ad787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fe1ae6de3d036133ac0ad374ce7c196c267d9e183f7c98ef5baf3bbcf7ad787", kill_on_drop: false }`
[INFO] [stdout] 1fe1ae6de3d036133ac0ad374ce7c196c267d9e183f7c98ef5baf3bbcf7ad787
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8c6b2dc230333b08010cc6cbbe28e910853760915da359e4c53f1f88c820f8f4
[INFO] running `Command { std: "docker" "start" "-a" "8c6b2dc230333b08010cc6cbbe28e910853760915da359e4c53f1f88c820f8f4", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/widgets/button.rs:42:29
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 let f: &mut (dyn FnMut(&Button)) = &mut **a;
[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] 42 -                 let f: &mut (dyn FnMut(&Button)) = &mut **a;
[INFO] [stdout] 42 +                 let f: &mut dyn FnMut(&Button)  = &mut **a;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/widgets/button.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 let f: &mut (dyn FnMut(&Toggle)) = &mut **a;
[INFO] [stdout]     |                             ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -                 let f: &mut (dyn FnMut(&Toggle)) = &mut **a;
[INFO] [stdout] 103 +                 let f: &mut dyn FnMut(&Toggle)  = &mut **a;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling floui v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/widgets/button.rs:174:29
[INFO] [stdout]     |
[INFO] [stdout] 174 |                 let f: &mut (dyn FnMut(&Check)) = &mut **a;
[INFO] [stdout]     |                             ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 174 -                 let f: &mut (dyn FnMut(&Check)) = &mut **a;
[INFO] [stdout] 174 +                 let f: &mut dyn FnMut(&Check)  = &mut **a;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/widgets/misc.rs:98:29
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 let f: &mut (dyn FnMut(&Slider)) = &mut **a;
[INFO] [stdout]    |                             ^                  ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 98 -                 let f: &mut (dyn FnMut(&Slider)) = &mut **a;
[INFO] [stdout] 98 +                 let f: &mut dyn FnMut(&Slider)  = &mut **a;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/widgets/button.rs:42:29
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 let f: &mut (dyn FnMut(&Button)) = &mut **a;
[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] 42 -                 let f: &mut (dyn FnMut(&Button)) = &mut **a;
[INFO] [stdout] 42 +                 let f: &mut dyn FnMut(&Button)  = &mut **a;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/widgets/button.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 let f: &mut (dyn FnMut(&Toggle)) = &mut **a;
[INFO] [stdout]     |                             ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -                 let f: &mut (dyn FnMut(&Toggle)) = &mut **a;
[INFO] [stdout] 103 +                 let f: &mut dyn FnMut(&Toggle)  = &mut **a;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/widgets/button.rs:174:29
[INFO] [stdout]     |
[INFO] [stdout] 174 |                 let f: &mut (dyn FnMut(&Check)) = &mut **a;
[INFO] [stdout]     |                             ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 174 -                 let f: &mut (dyn FnMut(&Check)) = &mut **a;
[INFO] [stdout] 174 +                 let f: &mut dyn FnMut(&Check)  = &mut **a;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/widgets/misc.rs:98:29
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 let f: &mut (dyn FnMut(&Slider)) = &mut **a;
[INFO] [stdout]    |                             ^                  ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 98 -                 let f: &mut (dyn FnMut(&Slider)) = &mut **a;
[INFO] [stdout] 98 +                 let f: &mut dyn FnMut(&Slider)  = &mut **a;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "8c6b2dc230333b08010cc6cbbe28e910853760915da359e4c53f1f88c820f8f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c6b2dc230333b08010cc6cbbe28e910853760915da359e4c53f1f88c820f8f4", kill_on_drop: false }`
[INFO] [stdout] 8c6b2dc230333b08010cc6cbbe28e910853760915da359e4c53f1f88c820f8f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fa793ee7c5b9784b5cef2ddf2548de209b27522f728339cb3f9c35f6949da6fd
[INFO] running `Command { std: "docker" "start" "-a" "fa793ee7c5b9784b5cef2ddf2548de209b27522f728339cb3f9c35f6949da6fd", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/widgets/button.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 let f: &mut (dyn FnMut(&Button)) = &mut **a;
[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] 42 -                 let f: &mut (dyn FnMut(&Button)) = &mut **a;
[INFO] [stderr] 42 +                 let f: &mut dyn FnMut(&Button)  = &mut **a;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/widgets/button.rs:103:29
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 let f: &mut (dyn FnMut(&Toggle)) = &mut **a;
[INFO] [stderr]     |                             ^                  ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 103 -                 let f: &mut (dyn FnMut(&Toggle)) = &mut **a;
[INFO] [stderr] 103 +                 let f: &mut dyn FnMut(&Toggle)  = &mut **a;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/widgets/button.rs:174:29
[INFO] [stderr]     |
[INFO] [stderr] 174 |                 let f: &mut (dyn FnMut(&Check)) = &mut **a;
[INFO] [stderr]     |                             ^                 ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 174 -                 let f: &mut (dyn FnMut(&Check)) = &mut **a;
[INFO] [stderr] 174 +                 let f: &mut dyn FnMut(&Check)  = &mut **a;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/widgets/misc.rs:98:29
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 let f: &mut (dyn FnMut(&Slider)) = &mut **a;
[INFO] [stderr]    |                             ^                  ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 98 -                 let f: &mut (dyn FnMut(&Slider)) = &mut **a;
[INFO] [stderr] 98 +                 let f: &mut dyn FnMut(&Slider)  = &mut **a;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `floui` (lib) generated 4 warnings (run `cargo fix --lib -p floui` to apply 4 suggestions)
[INFO] [stderr] warning: `floui` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/floui-d3bd60d76a488e3d)
[INFO] [stderr]    Doc-tests floui
[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/widgets/button.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 let f: &mut (dyn FnMut(&Button)) = &mut **a;
[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] 42 -                 let f: &mut (dyn FnMut(&Button)) = &mut **a;
[INFO] [stderr] 42 +                 let f: &mut dyn FnMut(&Button)  = &mut **a;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/widgets/button.rs:103:29
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 let f: &mut (dyn FnMut(&Toggle)) = &mut **a;
[INFO] [stderr]     |                             ^                  ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 103 -                 let f: &mut (dyn FnMut(&Toggle)) = &mut **a;
[INFO] [stderr] 103 +                 let f: &mut dyn FnMut(&Toggle)  = &mut **a;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/widgets/button.rs:174:29
[INFO] [stderr]     |
[INFO] [stderr] 174 |                 let f: &mut (dyn FnMut(&Check)) = &mut **a;
[INFO] [stderr]     |                             ^                 ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 174 -                 let f: &mut (dyn FnMut(&Check)) = &mut **a;
[INFO] [stderr] 174 +                 let f: &mut dyn FnMut(&Check)  = &mut **a;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/widgets/misc.rs:98:29
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 let f: &mut (dyn FnMut(&Slider)) = &mut **a;
[INFO] [stderr]    |                             ^                  ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 98 -                 let f: &mut (dyn FnMut(&Slider)) = &mut **a;
[INFO] [stderr] 98 +                 let f: &mut dyn FnMut(&Slider)  = &mut **a;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/prelude.rs - prelude::from_id (line 22) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fa793ee7c5b9784b5cef2ddf2548de209b27522f728339cb3f9c35f6949da6fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa793ee7c5b9784b5cef2ddf2548de209b27522f728339cb3f9c35f6949da6fd", kill_on_drop: false }`
[INFO] [stdout] fa793ee7c5b9784b5cef2ddf2548de209b27522f728339cb3f9c35f6949da6fd