[INFO] fetching crate amber 0.5.9...
[INFO] checking amber-0.5.9 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate amber 0.5.9 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate amber 0.5.9 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amber 0.5.9
[INFO] finished tweaking crates.io crate amber 0.5.9
[INFO] tweaked toml for crates.io crate amber 0.5.9 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate amber 0.5.9 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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c473e99af03bcef9c137f6eadb8a4f4c1e68995da51be816e270eb09fc3e7534
[INFO] running `Command { std: "docker" "start" "-a" "c473e99af03bcef9c137f6eadb8a4f4c1e68995da51be816e270eb09fc3e7534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c473e99af03bcef9c137f6eadb8a4f4c1e68995da51be816e270eb09fc3e7534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c473e99af03bcef9c137f6eadb8a4f4c1e68995da51be816e270eb09fc3e7534", kill_on_drop: false }`
[INFO] [stdout] c473e99af03bcef9c137f6eadb8a4f4c1e68995da51be816e270eb09fc3e7534
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b17135596b4cf80150a1dce46201544a4459a6f892c8c750f6016206147fd004
[INFO] running `Command { std: "docker" "start" "-a" "b17135596b4cf80150a1dce46201544a4459a6f892c8c750f6016206147fd004", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.89
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[INFO] [stderr]     Checking rlibc v1.0.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking rustc-serialize v0.3.24
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[INFO] [stderr]     Checking termios v0.2.2
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[INFO] [stderr]     Checking memmap v0.7.0
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[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking getch v0.2.1
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[INFO] [stderr]     Checking term v0.7.0
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[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking ctrlc v3.1.8
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking amber v0.5.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:592:45
[INFO] [stdout]     |
[INFO] [stdout] 592 |             (0x00..=0x7f, _, _, _, _, _) => (1),                                         // ASCII
[INFO] [stdout]     |                                             ^ ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 592 -             (0x00..=0x7f, _, _, _, _, _) => (1),                                         // ASCII
[INFO] [stdout] 592 +             (0x00..=0x7f, _, _, _, _, _) => 1,                                         // ASCII
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:593:55
[INFO] [stdout]     |
[INFO] [stdout] 593 |             (0xc2..=0xdf, 0x80..=0xbf, _, _, _, _) => (2),                               // UTF-8
[INFO] [stdout]     |                                                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 593 -             (0xc2..=0xdf, 0x80..=0xbf, _, _, _, _) => (2),                               // UTF-8
[INFO] [stdout] 593 +             (0xc2..=0xdf, 0x80..=0xbf, _, _, _, _) => 2,                               // UTF-8
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:594:65
[INFO] [stdout]     |
[INFO] [stdout] 594 |             (0xe0..=0xef, 0x80..=0xbf, 0x80..=0xbf, _, _, _) => (3),                     // UTF-8
[INFO] [stdout]     |                                                                 ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 594 -             (0xe0..=0xef, 0x80..=0xbf, 0x80..=0xbf, _, _, _) => (3),                     // UTF-8
[INFO] [stdout] 594 +             (0xe0..=0xef, 0x80..=0xbf, 0x80..=0xbf, _, _, _) => 3,                     // UTF-8
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:595:75
[INFO] [stdout]     |
[INFO] [stdout] 595 |             (0xf0..=0xf7, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, _, _) => (4),           // UTF-8
[INFO] [stdout]     |                                                                           ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 595 -             (0xf0..=0xf7, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, _, _) => (4),           // UTF-8
[INFO] [stdout] 595 +             (0xf0..=0xf7, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, _, _) => 4,           // UTF-8
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:596:85
[INFO] [stdout]     |
[INFO] [stdout] 596 |             (0xf8..=0xfb, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, _) => (5), // UTF-8
[INFO] [stdout]     |                                                                                     ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 596 -             (0xf8..=0xfb, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, _) => (5), // UTF-8
[INFO] [stdout] 596 +             (0xf8..=0xfb, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, _) => 5, // UTF-8
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:597:95
[INFO] [stdout]     |
[INFO] [stdout] 597 |             (0xfc..=0xfd, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf) => (6), // UTF-8
[INFO] [stdout]     |                                                                                               ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 597 -             (0xfc..=0xfd, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf) => (6), // UTF-8
[INFO] [stdout] 597 +             (0xfc..=0xfd, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf) => 6, // UTF-8
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:598:48
[INFO] [stdout]     |
[INFO] [stdout] 598 |             (0x8e, 0xa1..=0xdf, _, _, _, _) => (2),                                      // EUC-JP
[INFO] [stdout]     |                                                ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 598 -             (0x8e, 0xa1..=0xdf, _, _, _, _) => (2),                                      // EUC-JP
[INFO] [stdout] 598 +             (0x8e, 0xa1..=0xdf, _, _, _, _) => 2,                                      // EUC-JP
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:599:55
[INFO] [stdout]     |
[INFO] [stdout] 599 |             (0xa1..=0xfe, 0xa1..=0xfe, _, _, _, _) => (2),                               // EUC-JP
[INFO] [stdout]     |                                                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 599 -             (0xa1..=0xfe, 0xa1..=0xfe, _, _, _, _) => (2),                               // EUC-JP
[INFO] [stdout] 599 +             (0xa1..=0xfe, 0xa1..=0xfe, _, _, _, _) => 2,                               // EUC-JP
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:600:45
[INFO] [stdout]     |
[INFO] [stdout] 600 |             (0xa1..=0xdf, _, _, _, _, _) => (1),                                         // ShiftJIS
[INFO] [stdout]     |                                             ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 600 -             (0xa1..=0xdf, _, _, _, _, _) => (1),                                         // ShiftJIS
[INFO] [stdout] 600 +             (0xa1..=0xdf, _, _, _, _, _) => 1,                                         // ShiftJIS
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:601:55
[INFO] [stdout]     |
[INFO] [stdout] 601 |             (0x81..=0x9f, 0x40..=0x7e, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout]     |                                                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 601 -             (0x81..=0x9f, 0x40..=0x7e, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout] 601 +             (0x81..=0x9f, 0x40..=0x7e, _, _, _, _) => 2,                               // ShiftJIS
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:602:55
[INFO] [stdout]     |
[INFO] [stdout] 602 |             (0x81..=0x9f, 0x80..=0xfc, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout]     |                                                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 602 -             (0x81..=0x9f, 0x80..=0xfc, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout] 602 +             (0x81..=0x9f, 0x80..=0xfc, _, _, _, _) => 2,                               // ShiftJIS
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:603:55
[INFO] [stdout]     |
[INFO] [stdout] 603 |             (0xe0..=0xef, 0x40..=0x7e, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout]     |                                                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 603 -             (0xe0..=0xef, 0x40..=0x7e, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout] 603 +             (0xe0..=0xef, 0x40..=0x7e, _, _, _, _) => 2,                               // ShiftJIS
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:604:55
[INFO] [stdout]     |
[INFO] [stdout] 604 |             (0xe0..=0xef, 0x80..=0xfc, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout]     |                                                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 604 -             (0xe0..=0xef, 0x80..=0xfc, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout] 604 +             (0xe0..=0xef, 0x80..=0xfc, _, _, _, _) => 2,                               // ShiftJIS
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:605:18
[INFO] [stdout]     |
[INFO] [stdout] 605 |             _ => (1),                                                                    // Unknown
[INFO] [stdout]     |                  ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 605 -             _ => (1),                                                                    // Unknown
[INFO] [stdout] 605 +             _ => 1,                                                                    // Unknown
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:592:45
[INFO] [stdout]     |
[INFO] [stdout] 592 |             (0x00..=0x7f, _, _, _, _, _) => (1),                                         // ASCII
[INFO] [stdout]     |                                             ^ ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 592 -             (0x00..=0x7f, _, _, _, _, _) => (1),                                         // ASCII
[INFO] [stdout] 592 +             (0x00..=0x7f, _, _, _, _, _) => 1,                                         // ASCII
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:593:55
[INFO] [stdout]     |
[INFO] [stdout] 593 |             (0xc2..=0xdf, 0x80..=0xbf, _, _, _, _) => (2),                               // UTF-8
[INFO] [stdout]     |                                                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 593 -             (0xc2..=0xdf, 0x80..=0xbf, _, _, _, _) => (2),                               // UTF-8
[INFO] [stdout] 593 +             (0xc2..=0xdf, 0x80..=0xbf, _, _, _, _) => 2,                               // UTF-8
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:594:65
[INFO] [stdout]     |
[INFO] [stdout] 594 |             (0xe0..=0xef, 0x80..=0xbf, 0x80..=0xbf, _, _, _) => (3),                     // UTF-8
[INFO] [stdout]     |                                                                 ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 594 -             (0xe0..=0xef, 0x80..=0xbf, 0x80..=0xbf, _, _, _) => (3),                     // UTF-8
[INFO] [stdout] 594 +             (0xe0..=0xef, 0x80..=0xbf, 0x80..=0xbf, _, _, _) => 3,                     // UTF-8
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:595:75
[INFO] [stdout]     |
[INFO] [stdout] 595 |             (0xf0..=0xf7, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, _, _) => (4),           // UTF-8
[INFO] [stdout]     |                                                                           ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 595 -             (0xf0..=0xf7, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, _, _) => (4),           // UTF-8
[INFO] [stdout] 595 +             (0xf0..=0xf7, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, _, _) => 4,           // UTF-8
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:596:85
[INFO] [stdout]     |
[INFO] [stdout] 596 |             (0xf8..=0xfb, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, _) => (5), // UTF-8
[INFO] [stdout]     |                                                                                     ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 596 -             (0xf8..=0xfb, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, _) => (5), // UTF-8
[INFO] [stdout] 596 +             (0xf8..=0xfb, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, _) => 5, // UTF-8
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:597:95
[INFO] [stdout]     |
[INFO] [stdout] 597 |             (0xfc..=0xfd, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf) => (6), // UTF-8
[INFO] [stdout]     |                                                                                               ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 597 -             (0xfc..=0xfd, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf) => (6), // UTF-8
[INFO] [stdout] 597 +             (0xfc..=0xfd, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf, 0x80..=0xbf) => 6, // UTF-8
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:598:48
[INFO] [stdout]     |
[INFO] [stdout] 598 |             (0x8e, 0xa1..=0xdf, _, _, _, _) => (2),                                      // EUC-JP
[INFO] [stdout]     |                                                ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 598 -             (0x8e, 0xa1..=0xdf, _, _, _, _) => (2),                                      // EUC-JP
[INFO] [stdout] 598 +             (0x8e, 0xa1..=0xdf, _, _, _, _) => 2,                                      // EUC-JP
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:599:55
[INFO] [stdout]     |
[INFO] [stdout] 599 |             (0xa1..=0xfe, 0xa1..=0xfe, _, _, _, _) => (2),                               // EUC-JP
[INFO] [stdout]     |                                                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 599 -             (0xa1..=0xfe, 0xa1..=0xfe, _, _, _, _) => (2),                               // EUC-JP
[INFO] [stdout] 599 +             (0xa1..=0xfe, 0xa1..=0xfe, _, _, _, _) => 2,                               // EUC-JP
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:600:45
[INFO] [stdout]     |
[INFO] [stdout] 600 |             (0xa1..=0xdf, _, _, _, _, _) => (1),                                         // ShiftJIS
[INFO] [stdout]     |                                             ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 600 -             (0xa1..=0xdf, _, _, _, _, _) => (1),                                         // ShiftJIS
[INFO] [stdout] 600 +             (0xa1..=0xdf, _, _, _, _, _) => 1,                                         // ShiftJIS
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:601:55
[INFO] [stdout]     |
[INFO] [stdout] 601 |             (0x81..=0x9f, 0x40..=0x7e, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout]     |                                                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 601 -             (0x81..=0x9f, 0x40..=0x7e, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout] 601 +             (0x81..=0x9f, 0x40..=0x7e, _, _, _, _) => 2,                               // ShiftJIS
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:602:55
[INFO] [stdout]     |
[INFO] [stdout] 602 |             (0x81..=0x9f, 0x80..=0xfc, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout]     |                                                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 602 -             (0x81..=0x9f, 0x80..=0xfc, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout] 602 +             (0x81..=0x9f, 0x80..=0xfc, _, _, _, _) => 2,                               // ShiftJIS
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:603:55
[INFO] [stdout]     |
[INFO] [stdout] 603 |             (0xe0..=0xef, 0x40..=0x7e, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout]     |                                                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 603 -             (0xe0..=0xef, 0x40..=0x7e, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout] 603 +             (0xe0..=0xef, 0x40..=0x7e, _, _, _, _) => 2,                               // ShiftJIS
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:604:55
[INFO] [stdout]     |
[INFO] [stdout] 604 |             (0xe0..=0xef, 0x80..=0xfc, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout]     |                                                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 604 -             (0xe0..=0xef, 0x80..=0xfc, _, _, _, _) => (2),                               // ShiftJIS
[INFO] [stdout] 604 +             (0xe0..=0xef, 0x80..=0xfc, _, _, _, _) => 2,                               // ShiftJIS
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/matcher.rs:605:18
[INFO] [stdout]     |
[INFO] [stdout] 605 |             _ => (1),                                                                    // Unknown
[INFO] [stdout]     |                  ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 605 -             _ => (1),                                                                    // Unknown
[INFO] [stdout] 605 +             _ => 1,                                                                    // Unknown
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]  --> benches/path_finder.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::path::PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]  --> benches/path_finder.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use test::Bencher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand::StdRng`
[INFO] [stdout]  --> benches/matcher.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::{Rng, SeedableRng, StdRng};
[INFO] [stdout]   |                              ^^^^^^ no `StdRng` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing this struct instead:
[INFO] [stdout]           rand::rngs::StdRng
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> benches/matcher.rs:41:31
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn bench(b: &mut Bencher, m: &Matcher) {
[INFO] [stdout]    |                               ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn bench(b: &mut Bencher, m: &dyn Matcher) {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]  --> benches/matcher.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::{Rng, SeedableRng, StdRng};
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `amber` (bench "matcher") due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b17135596b4cf80150a1dce46201544a4459a6f892c8c750f6016206147fd004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b17135596b4cf80150a1dce46201544a4459a6f892c8c750f6016206147fd004", kill_on_drop: false }`
[INFO] [stdout] b17135596b4cf80150a1dce46201544a4459a6f892c8c750f6016206147fd004
