[INFO] cloning repository https://github.com/camray/battleship-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/camray/battleship-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcamray%2Fbattleship-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcamray%2Fbattleship-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1130c65ccbb478b4467200a6ac9b9b3375bb6386
[INFO] checking camray/battleship-rs against master#fc5af1813307d25a84d633f21e2e53c9376eb547 for pr-144386
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcamray%2Fbattleship-rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/camray/battleship-rs
[INFO] finished tweaking git repo https://github.com/camray/battleship-rs
[INFO] tweaked toml for git repo https://github.com/camray/battleship-rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/camray/battleship-rs on toolchain fc5af1813307d25a84d633f21e2e53c9376eb547
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/camray/battleship-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" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 956368367d9f1072ae74d852842cfc94699be21215488aeb70e1932748472633
[INFO] running `Command { std: "docker" "start" "-a" "956368367d9f1072ae74d852842cfc94699be21215488aeb70e1932748472633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "956368367d9f1072ae74d852842cfc94699be21215488aeb70e1932748472633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "956368367d9f1072ae74d852842cfc94699be21215488aeb70e1932748472633", kill_on_drop: false }`
[INFO] [stdout] 956368367d9f1072ae74d852842cfc94699be21215488aeb70e1932748472633
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ee7ab4aacd38e20d6b84f5427d4bffcad809e158d26fb6d5af0d353d161e278
[INFO] running `Command { std: "docker" "start" "-a" "7ee7ab4aacd38e20d6b84f5427d4bffcad809e158d26fb6d5af0d353d161e278", kill_on_drop: false }`
[INFO] [stderr]     Checking battleship v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/engine/field.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |             .map(|s| s.clone())
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Ship` does not implement `Clone`, so calling `clone` on `&Ship` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 93 -             .map(|s| s.clone())
[INFO] [stdout] 93 +             .map(|s| s)
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Ship`, implement `Clone` for it
[INFO] [stdout]   --> src/engine/ship.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  + #[derive(Clone)]
[INFO] [stdout] 7  | pub struct Ship {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/engine/field.rs:108:23
[INFO] [stdout]     |
[INFO] [stdout] 108 |             .map(|s| s.clone())
[INFO] [stdout]     |                       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Ship` does not implement `Clone`, so calling `clone` on `&Ship` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 108 -             .map(|s| s.clone())
[INFO] [stdout] 108 +             .map(|s| s)
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `Ship`, implement `Clone` for it
[INFO] [stdout]    --> src/engine/ship.rs:6:1
[INFO] [stdout]     |
[INFO] [stdout] 6   + #[derive(Clone)]
[INFO] [stdout] 7   | pub struct Ship {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/engine/field.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |             .map(|s| s.clone())
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Ship` does not implement `Clone`, so calling `clone` on `&Ship` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 93 -             .map(|s| s.clone())
[INFO] [stdout] 93 +             .map(|s| s)
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Ship`, implement `Clone` for it
[INFO] [stdout]   --> src/engine/ship.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  + #[derive(Clone)]
[INFO] [stdout] 7  | pub struct Ship {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/engine/field.rs:108:23
[INFO] [stdout]     |
[INFO] [stdout] 108 |             .map(|s| s.clone())
[INFO] [stdout]     |                       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Ship` does not implement `Clone`, so calling `clone` on `&Ship` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 108 -             .map(|s| s.clone())
[INFO] [stdout] 108 +             .map(|s| s)
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `Ship`, implement `Clone` for it
[INFO] [stdout]    --> src/engine/ship.rs:6:1
[INFO] [stdout]     |
[INFO] [stdout] 6   + #[derive(Clone)]
[INFO] [stdout] 7   | pub struct Ship {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "7ee7ab4aacd38e20d6b84f5427d4bffcad809e158d26fb6d5af0d353d161e278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ee7ab4aacd38e20d6b84f5427d4bffcad809e158d26fb6d5af0d353d161e278", kill_on_drop: false }`
[INFO] [stdout] 7ee7ab4aacd38e20d6b84f5427d4bffcad809e158d26fb6d5af0d353d161e278