[INFO] cloning repository https://github.com/arthrp/game-of-life-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arthrp/game-of-life-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farthrp%2Fgame-of-life-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farthrp%2Fgame-of-life-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] add80100f5b681e6a4134d8ac8f8944a5e0513c8
[INFO] linting arthrp/game-of-life-rs against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farthrp%2Fgame-of-life-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/arthrp/game-of-life-rs
[INFO] finished tweaking git repo https://github.com/arthrp/game-of-life-rs
[INFO] tweaked toml for git repo https://github.com/arthrp/game-of-life-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/arthrp/game-of-life-rs on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/arthrp/game-of-life-rs 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" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b644432e5f777c75399fda86b997eec35e8302c2b67a707cc9a49547a47d0789
[INFO] running `Command { std: "docker" "start" "-a" "b644432e5f777c75399fda86b997eec35e8302c2b67a707cc9a49547a47d0789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b644432e5f777c75399fda86b997eec35e8302c2b67a707cc9a49547a47d0789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b644432e5f777c75399fda86b997eec35e8302c2b67a707cc9a49547a47d0789", kill_on_drop: false }`
[INFO] [stdout] b644432e5f777c75399fda86b997eec35e8302c2b67a707cc9a49547a47d0789
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e19497a439f88aa50c27e489afc5b49316474738ad15d458a6f47083bef2f04f
[INFO] running `Command { std: "docker" "start" "-a" "e19497a439f88aa50c27e489afc5b49316474738ad15d458a6f47083bef2f04f", kill_on_drop: false }`
[INFO] [stderr]     Checking game-of-life v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calling `push_str()` using a single-character string literal
[INFO] [stdout]   --> src/game_of_life.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             str.push_str("\n");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^ help: consider using `push` with a character literal: `str.push('\n')`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_add_str
[INFO] [stdout]    = note: `#[warn(clippy::single_char_add_str)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/game_of_life.rs:59:38
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 new_board[x][y] = if (cell && (n == 2 || n == 3)) || (!cell && n == 3) { true } else { false };
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 59 -                 new_board[x][y] = if (cell && (n == 2 || n == 3)) || (!cell && n == 3) { true } else { false };
[INFO] [stdout] 59 +                 new_board[x][y] = if !(!cell && n != 3 || n != 2 && n != 3) { true } else { false };
[INFO] [stdout]    |
[INFO] [stdout] 59 -                 new_board[x][y] = if (cell && (n == 2 || n == 3)) || (!cell && n == 3) { true } else { false };
[INFO] [stdout] 59 +                 new_board[x][y] = if (n == 3 || n == 2) && (n == 3 || cell) { true } else { false };
[INFO] [stdout]    |
[INFO] [stdout] 59 -                 new_board[x][y] = if (cell && (n == 2 || n == 3)) || (!cell && n == 3) { true } else { false };
[INFO] [stdout] 59 +                 new_board[x][y] = if n == 3 || cell && n == 2 { true } else { false };
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `y` is used to index `new_board`
[INFO] [stdout]   --> src/game_of_life.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |         for y in 0..HEIGHT {
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 54 -         for y in 0..HEIGHT {
[INFO] [stdout] 54 +         for (y, <item>) in new_board.iter_mut().enumerate().take(HEIGHT) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `x` is used to index `new_board`
[INFO] [stdout]   --> src/game_of_life.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |             for x in 0..WIDTH {
[INFO] [stdout]    |                      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 55 -             for x in 0..WIDTH {
[INFO] [stdout] 55 +             for (x, <item>) in new_board.iter_mut().enumerate().take(WIDTH) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this if-then-else expression returns a bool literal
[INFO] [stdout]   --> src/game_of_life.rs:59:35
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 new_board[x][y] = if (cell && (n == 2 || n == 3)) || (!cell && n == 3) { true } else { false };
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: you can reduce it to: `(cell && (n == 2 || n == 3)) || (!cell && n == 3)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_bool
[INFO] [stdout]    = note: `#[warn(clippy::needless_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calling `push_str()` using a single-character string literal
[INFO] [stdout]   --> src/game_of_life.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             str.push_str("\n");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^ help: consider using `push` with a character literal: `str.push('\n')`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_add_str
[INFO] [stdout]    = note: `#[warn(clippy::single_char_add_str)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/game_of_life.rs:59:38
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 new_board[x][y] = if (cell && (n == 2 || n == 3)) || (!cell && n == 3) { true } else { false };
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 59 -                 new_board[x][y] = if (cell && (n == 2 || n == 3)) || (!cell && n == 3) { true } else { false };
[INFO] [stdout] 59 +                 new_board[x][y] = if !(!cell && n != 3 || n != 2 && n != 3) { true } else { false };
[INFO] [stdout]    |
[INFO] [stdout] 59 -                 new_board[x][y] = if (cell && (n == 2 || n == 3)) || (!cell && n == 3) { true } else { false };
[INFO] [stdout] 59 +                 new_board[x][y] = if (n == 3 || n == 2) && (n == 3 || cell) { true } else { false };
[INFO] [stdout]    |
[INFO] [stdout] 59 -                 new_board[x][y] = if (cell && (n == 2 || n == 3)) || (!cell && n == 3) { true } else { false };
[INFO] [stdout] 59 +                 new_board[x][y] = if n == 3 || cell && n == 2 { true } else { false };
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `y` is used to index `new_board`
[INFO] [stdout]   --> src/game_of_life.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |         for y in 0..HEIGHT {
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 54 -         for y in 0..HEIGHT {
[INFO] [stdout] 54 +         for (y, <item>) in new_board.iter_mut().enumerate().take(HEIGHT) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `x` is used to index `new_board`
[INFO] [stdout]   --> src/game_of_life.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |             for x in 0..WIDTH {
[INFO] [stdout]    |                      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 55 -             for x in 0..WIDTH {
[INFO] [stdout] 55 +             for (x, <item>) in new_board.iter_mut().enumerate().take(WIDTH) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this if-then-else expression returns a bool literal
[INFO] [stdout]   --> src/game_of_life.rs:59:35
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 new_board[x][y] = if (cell && (n == 2 || n == 3)) || (!cell && n == 3) { true } else { false };
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: you can reduce it to: `(cell && (n == 2 || n == 3)) || (!cell && n == 3)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_bool
[INFO] [stdout]    = note: `#[warn(clippy::needless_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "e19497a439f88aa50c27e489afc5b49316474738ad15d458a6f47083bef2f04f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e19497a439f88aa50c27e489afc5b49316474738ad15d458a6f47083bef2f04f", kill_on_drop: false }`
[INFO] [stdout] e19497a439f88aa50c27e489afc5b49316474738ad15d458a6f47083bef2f04f