[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#8365fcb2b840c95eeb0bc377af8bd498fad22245 for pr-145605
[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 8365fcb2b840c95eeb0bc377af8bd498fad22245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "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" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 536207b188851db69e8215926239c8795eacad0ee591068a67b68f928dbfa992
[INFO] running `Command { std: "docker" "start" "-a" "536207b188851db69e8215926239c8795eacad0ee591068a67b68f928dbfa992", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "536207b188851db69e8215926239c8795eacad0ee591068a67b68f928dbfa992", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "536207b188851db69e8215926239c8795eacad0ee591068a67b68f928dbfa992", kill_on_drop: false }`
[INFO] [stdout] 536207b188851db69e8215926239c8795eacad0ee591068a67b68f928dbfa992
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 187699676f0c62336ed90db8e63e04e15b949d4319419a68a7cad4124fa89c5a
[INFO] running `Command { std: "docker" "start" "-a" "187699676f0c62336ed90db8e63e04e15b949d4319419a68a7cad4124fa89c5a", 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 0.16s
[INFO] running `Command { std: "docker" "inspect" "187699676f0c62336ed90db8e63e04e15b949d4319419a68a7cad4124fa89c5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "187699676f0c62336ed90db8e63e04e15b949d4319419a68a7cad4124fa89c5a", kill_on_drop: false }`
[INFO] [stdout] 187699676f0c62336ed90db8e63e04e15b949d4319419a68a7cad4124fa89c5a