[INFO] cloning repository https://github.com/Cackbone/2048.rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Cackbone/2048.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCackbone%2F2048.rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCackbone%2F2048.rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9c58e9f2ea5fb12a56dd27087d6b618184fc8c6f [INFO] testing Cackbone/2048.rs against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCackbone%2F2048.rs" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Cackbone/2048.rs on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Cackbone/2048.rs [INFO] finished tweaking git repo https://github.com/Cackbone/2048.rs [INFO] tweaked toml for git repo https://github.com/Cackbone/2048.rs written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/Cackbone/2048.rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded bitflags v0.7.0 [INFO] [stderr] Downloaded rand v0.3.16 [INFO] [stderr] Downloaded magenta-sys v0.1.1 [INFO] [stderr] Downloaded libc v0.2.31 [INFO] [stderr] Downloaded magenta v0.1.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] aca0f66f8f622cc1b9d555982618af112dfcd6c369df75771c00e90fb7d95ee0 [INFO] running `Command { std: "docker" "start" "-a" "aca0f66f8f622cc1b9d555982618af112dfcd6c369df75771c00e90fb7d95ee0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "aca0f66f8f622cc1b9d555982618af112dfcd6c369df75771c00e90fb7d95ee0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aca0f66f8f622cc1b9d555982618af112dfcd6c369df75771c00e90fb7d95ee0", kill_on_drop: false }` [INFO] [stdout] aca0f66f8f622cc1b9d555982618af112dfcd6c369df75771c00e90fb7d95ee0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 61309c4a50da1f76b6130cce60819bba29c48e280b0b9b645cb79b325807f6a4 [INFO] running `Command { std: "docker" "start" "-a" "61309c4a50da1f76b6130cce60819bba29c48e280b0b9b645cb79b325807f6a4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.31 [INFO] [stderr] Compiling rand v0.3.16 [INFO] [stderr] Compiling rust_2048 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/main.rs:189:25 [INFO] [stdout] | [INFO] [stdout] 189 | print_line('-');; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `grid_bis` is never read [INFO] [stdout] --> src/main.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | let mut grid_bis = [[0i8; 4];4]; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:97:28 [INFO] [stdout] | [INFO] [stdout] 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4]) [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:137:13 [INFO] [stdout] | [INFO] [stdout] 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4]) [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:52:13 [INFO] [stdout] | [INFO] [stdout] 52 | Command::new("clear").status(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:75:5 [INFO] [stdout] | [INFO] [stdout] 75 | Command::new("clear").status(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.13s [INFO] running `Command { std: "docker" "inspect" "61309c4a50da1f76b6130cce60819bba29c48e280b0b9b645cb79b325807f6a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "61309c4a50da1f76b6130cce60819bba29c48e280b0b9b645cb79b325807f6a4", kill_on_drop: false }` [INFO] [stdout] 61309c4a50da1f76b6130cce60819bba29c48e280b0b9b645cb79b325807f6a4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3d3adc290f630c5951ae5ff4cf74e54fc81c8bb128e71f8f15d0895d28026950 [INFO] running `Command { std: "docker" "start" "-a" "3d3adc290f630c5951ae5ff4cf74e54fc81c8bb128e71f8f15d0895d28026950", kill_on_drop: false }` [INFO] [stderr] Compiling rust_2048 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/main.rs:189:25 [INFO] [stdout] | [INFO] [stdout] 189 | print_line('-');; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `grid_bis` is never read [INFO] [stdout] --> src/main.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | let mut grid_bis = [[0i8; 4];4]; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:97:28 [INFO] [stdout] | [INFO] [stdout] 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4]) [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:137:13 [INFO] [stdout] | [INFO] [stdout] 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4]) [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:52:13 [INFO] [stdout] | [INFO] [stdout] 52 | Command::new("clear").status(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:75:5 [INFO] [stdout] | [INFO] [stdout] 75 | Command::new("clear").status(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.62s [INFO] running `Command { std: "docker" "inspect" "3d3adc290f630c5951ae5ff4cf74e54fc81c8bb128e71f8f15d0895d28026950", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d3adc290f630c5951ae5ff4cf74e54fc81c8bb128e71f8f15d0895d28026950", kill_on_drop: false }` [INFO] [stdout] 3d3adc290f630c5951ae5ff4cf74e54fc81c8bb128e71f8f15d0895d28026950 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8591ec3c8eb82d77be45b5e83f15753a9f38e5cbfcbdec363e3cd4843b6d2023 [INFO] running `Command { std: "docker" "start" "-a" "8591ec3c8eb82d77be45b5e83f15753a9f38e5cbfcbdec363e3cd4843b6d2023", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/main.rs:189:25 [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] 189 | print_line('-');; [INFO] [stdout] [INFO] [stderr] | ^ help: remove this semicolon [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `grid_bis` is never read [INFO] [stderr] --> src/main.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | let mut grid_bis = [[0i8; 4];4]; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:97:28 [INFO] [stderr] | [INFO] [stderr] 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4]) [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:137:13 [INFO] [stderr] | [INFO] [stderr] 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4]) [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:52:13 [INFO] [stderr] | [INFO] [stderr] 52 | Command::new("clear").status(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:75:5 [INFO] [stderr] | [INFO] [stderr] 75 | Command::new("clear").status(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_2048-983abee70295813b) [INFO] running `Command { std: "docker" "inspect" "8591ec3c8eb82d77be45b5e83f15753a9f38e5cbfcbdec363e3cd4843b6d2023", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8591ec3c8eb82d77be45b5e83f15753a9f38e5cbfcbdec363e3cd4843b6d2023", kill_on_drop: false }` [INFO] [stdout] 8591ec3c8eb82d77be45b5e83f15753a9f38e5cbfcbdec363e3cd4843b6d2023