[INFO] cloning repository https://github.com/cardil/rust-guessing-game
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cardil/rust-guessing-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcardil%2Frust-guessing-game"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcardil%2Frust-guessing-game'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f326f0a23b4726d2590e83a7a98cafb08042b6b5
[INFO] checking cardil/rust-guessing-game against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcardil%2Frust-guessing-game" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cardil/rust-guessing-game on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cardil/rust-guessing-game
[INFO] finished tweaking git repo https://github.com/cardil/rust-guessing-game
[INFO] tweaked toml for git repo https://github.com/cardil/rust-guessing-game written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/cardil/rust-guessing-game already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c44a2e04ec3ef843bdb3035b199af7138fa9ae794a93cc44e802105602aefc21
[INFO] running `"docker" "start" "-a" "c44a2e04ec3ef843bdb3035b199af7138fa9ae794a93cc44e802105602aefc21"`
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the item `Output` is imported redundantly
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 6  | use view::Output;
[INFO] [stderr]    |     ------------ the item `Output` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 22 |     use view::Output;
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::View`
[INFO] [stderr]   --> src/view.rs:77:7
[INFO] [stderr]    |
[INFO] [stderr] 77 |   use super::View;
[INFO] [stderr]    |       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Output` is imported redundantly
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 6  | use view::Output;
[INFO] [stderr]    |     ------------ the item `Output` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 22 |     use view::Output;
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `out`
[INFO] [stderr]   --> src/view.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let mut out = String::new();
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_out`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/view.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let mut out = String::new();
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `"docker" "inspect" "c44a2e04ec3ef843bdb3035b199af7138fa9ae794a93cc44e802105602aefc21"`
[INFO] running `"docker" "rm" "-f" "c44a2e04ec3ef843bdb3035b199af7138fa9ae794a93cc44e802105602aefc21"`
[INFO] [stdout] c44a2e04ec3ef843bdb3035b199af7138fa9ae794a93cc44e802105602aefc21