[INFO] fetching crate floui 0.1.5...
[INFO] testing floui-0.1.5 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate floui 0.1.5 into /workspace/builds/worker-4-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-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate floui 0.1.5 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] 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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f6ae05fabf32337dbdbd7a1cfd5541a9ac6b0d4c1bc01a09aad45f7099fe75e4
[INFO] running `Command { std: "docker" "start" "-a" "f6ae05fabf32337dbdbd7a1cfd5541a9ac6b0d4c1bc01a09aad45f7099fe75e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6ae05fabf32337dbdbd7a1cfd5541a9ac6b0d4c1bc01a09aad45f7099fe75e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6ae05fabf32337dbdbd7a1cfd5541a9ac6b0d4c1bc01a09aad45f7099fe75e4", kill_on_drop: false }`
[INFO] [stdout] f6ae05fabf32337dbdbd7a1cfd5541a9ac6b0d4c1bc01a09aad45f7099fe75e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8871b76ff125f20ff5d6f353d8278badc77a9b615df6d59816b206249a9cc18f
[INFO] running `Command { std: "docker" "start" "-a" "8871b76ff125f20ff5d6f353d8278badc77a9b615df6d59816b206249a9cc18f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[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)]` 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 1.38s
[INFO] running `Command { std: "docker" "inspect" "8871b76ff125f20ff5d6f353d8278badc77a9b615df6d59816b206249a9cc18f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8871b76ff125f20ff5d6f353d8278badc77a9b615df6d59816b206249a9cc18f", kill_on_drop: false }`
[INFO] [stdout] 8871b76ff125f20ff5d6f353d8278badc77a9b615df6d59816b206249a9cc18f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 125aba8379412747741e3d47628d6ac3605e95b8e54a9e5a34990051808cb63c
[INFO] running `Command { std: "docker" "start" "-a" "125aba8379412747741e3d47628d6ac3605e95b8e54a9e5a34990051808cb63c", kill_on_drop: false }`
[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)]` 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] [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)]` 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 0.42s
[INFO] running `Command { std: "docker" "inspect" "125aba8379412747741e3d47628d6ac3605e95b8e54a9e5a34990051808cb63c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "125aba8379412747741e3d47628d6ac3605e95b8e54a9e5a34990051808cb63c", kill_on_drop: false }`
[INFO] [stdout] 125aba8379412747741e3d47628d6ac3605e95b8e54a9e5a34990051808cb63c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cbaea8200dab347ac1cbfef59bf5ad5c04522616641d5a29965ca9865bdca9d4
[INFO] running `Command { std: "docker" "start" "-a" "cbaea8200dab347ac1cbfef59bf5ad5c04522616641d5a29965ca9865bdca9d4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/widgets/button.rs:42:29
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 42 |                 let f: &mut (dyn FnMut(&Button)) = &mut **a;
[INFO] [stdout] 
[INFO] [stderr]    |                             ^                  ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` 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] [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)]` 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 0.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cbaea8200dab347ac1cbfef59bf5ad5c04522616641d5a29965ca9865bdca9d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbaea8200dab347ac1cbfef59bf5ad5c04522616641d5a29965ca9865bdca9d4", kill_on_drop: false }`
[INFO] [stdout] cbaea8200dab347ac1cbfef59bf5ad5c04522616641d5a29965ca9865bdca9d4