[INFO] updating cached repository https://github.com/ShadowMitia/rust-2048 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0e38f7cea710dd21d117bf4f5d9286ec502b7692 [INFO] checking ShadowMitia/rust-2048 against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShadowMitia%2Frust-2048" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ShadowMitia/rust-2048 on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ShadowMitia/rust-2048 [INFO] finished tweaking git repo https://github.com/ShadowMitia/rust-2048 [INFO] tweaked toml for git repo https://github.com/ShadowMitia/rust-2048 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/ShadowMitia/rust-2048 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 089959c7a7e569ad8945e3519bc77668cdb74f49249b55edfbfc3e0801d66a7a [INFO] running `Command { std: "docker" "start" "-a" "089959c7a7e569ad8945e3519bc77668cdb74f49249b55edfbfc3e0801d66a7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "089959c7a7e569ad8945e3519bc77668cdb74f49249b55edfbfc3e0801d66a7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "089959c7a7e569ad8945e3519bc77668cdb74f49249b55edfbfc3e0801d66a7a", kill_on_drop: false }` [INFO] [stdout] 089959c7a7e569ad8945e3519bc77668cdb74f49249b55edfbfc3e0801d66a7a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ee6f5bb8642d460d2538bebfc04ea978e9cc500f42acd49e3964706e921eec60 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ee6f5bb8642d460d2538bebfc04ea978e9cc500f42acd49e3964706e921eec60", kill_on_drop: false }` [INFO] [stderr] Compiling sdl2 v0.34.0 [INFO] [stderr] Compiling sdl2-sys v0.34.0 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking game-2048 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `game_running` [INFO] [stdout] --> src/main.rs:286:9 [INFO] [stdout] | [INFO] [stdout] 286 | let mut game_running = true; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_running` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/main.rs:311:25 [INFO] [stdout] | [INFO] [stdout] 311 | let res = add_to_empty_cell(&mut rng, &mut grid, val); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/main.rs:321:25 [INFO] [stdout] | [INFO] [stdout] 321 | let res = add_to_empty_cell(&mut rng, &mut grid, val); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/main.rs:330:25 [INFO] [stdout] | [INFO] [stdout] 330 | let res = add_to_empty_cell(&mut rng, &mut grid, val); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:286:9 [INFO] [stdout] | [INFO] [stdout] 286 | let mut game_running = true; [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:290:13 [INFO] [stdout] | [INFO] [stdout] 290 | let mut moved = false; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `game_running` [INFO] [stdout] --> src/main.rs:286:9 [INFO] [stdout] | [INFO] [stdout] 286 | let mut game_running = true; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_running` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/main.rs:311:25 [INFO] [stdout] | [INFO] [stdout] 311 | let res = add_to_empty_cell(&mut rng, &mut grid, val); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/main.rs:321:25 [INFO] [stdout] | [INFO] [stdout] 321 | let res = add_to_empty_cell(&mut rng, &mut grid, val); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/main.rs:330:25 [INFO] [stdout] | [INFO] [stdout] 330 | let res = add_to_empty_cell(&mut rng, &mut grid, val); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:286:9 [INFO] [stdout] | [INFO] [stdout] 286 | let mut game_running = true; [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:290:13 [INFO] [stdout] | [INFO] [stdout] 290 | let mut moved = false; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 9.58s [INFO] running `Command { std: "docker" "inspect" "ee6f5bb8642d460d2538bebfc04ea978e9cc500f42acd49e3964706e921eec60", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee6f5bb8642d460d2538bebfc04ea978e9cc500f42acd49e3964706e921eec60", kill_on_drop: false }` [INFO] [stdout] ee6f5bb8642d460d2538bebfc04ea978e9cc500f42acd49e3964706e921eec60