[INFO] cloning repository https://github.com/Tekadan/Rust-HangManWithDan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tekadan/Rust-HangManWithDan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTekadan%2FRust-HangManWithDan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTekadan%2FRust-HangManWithDan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa7173809927310f830cd9b3489e0160b401b8d9
[INFO] checking Tekadan/Rust-HangManWithDan against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTekadan%2FRust-HangManWithDan" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tekadan/Rust-HangManWithDan on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tekadan/Rust-HangManWithDan
[INFO] finished tweaking git repo https://github.com/Tekadan/Rust-HangManWithDan
[INFO] tweaked toml for git repo https://github.com/Tekadan/Rust-HangManWithDan written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Tekadan/Rust-HangManWithDan already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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] 7b00bee75a29cde810b41e89a059ef47fd16ab60c482b77640809e60377b1684
[INFO] running `Command { std: "docker" "start" "-a" "7b00bee75a29cde810b41e89a059ef47fd16ab60c482b77640809e60377b1684", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b00bee75a29cde810b41e89a059ef47fd16ab60c482b77640809e60377b1684", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b00bee75a29cde810b41e89a059ef47fd16ab60c482b77640809e60377b1684", kill_on_drop: false }`
[INFO] [stdout] 7b00bee75a29cde810b41e89a059ef47fd16ab60c482b77640809e60377b1684
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 58410005790e88b415b4d2034fa4c2852fec049056c7ecedd03fc78d76a47fa8
[INFO] running `Command { std: "docker" "start" "-a" "58410005790e88b415b4d2034fa4c2852fec049056c7ecedd03fc78d76a47fa8", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking hang_man v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:30:88
[INFO] [stdout]    |
[INFO] [stdout] 30 |             letter = letter.to_lowercase().collect::<String>().chars().nth(0).unwrap();;
[INFO] [stdout]    |                                                                                        ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:30:88
[INFO] [stdout]    |
[INFO] [stdout] 30 |             letter = letter.to_lowercase().collect::<String>().chars().nth(0).unwrap();;
[INFO] [stdout]    |                                                                                        ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `game_result`
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let game_result: bool = game_loop();
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_result`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `game_result`
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let game_result: bool = game_loop();
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_result`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "58410005790e88b415b4d2034fa4c2852fec049056c7ecedd03fc78d76a47fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58410005790e88b415b4d2034fa4c2852fec049056c7ecedd03fc78d76a47fa8", kill_on_drop: false }`
[INFO] [stdout] 58410005790e88b415b4d2034fa4c2852fec049056c7ecedd03fc78d76a47fa8