[INFO] cloning repository https://github.com/generic-coder-name/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/generic-coder-name/battleship-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeneric-coder-name%2Fbattleship-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeneric-coder-name%2Fbattleship-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 295e3edb7af8f588f15f1d18d837dd85d54f8719
[INFO] checking generic-coder-name/battleship-rs against master#d14d202262d13df896b0c624b0cec6e4bfde631a for pr-143028
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeneric-coder-name%2Fbattleship-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/generic-coder-name/battleship-rs
[INFO] finished tweaking git repo https://github.com/generic-coder-name/battleship-rs
[INFO] tweaked toml for git repo https://github.com/generic-coder-name/battleship-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/generic-coder-name/battleship-rs on toolchain d14d202262d13df896b0c624b0cec6e4bfde631a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/generic-coder-name/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" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f72174636fb7ee4ef218dc16b4246dc975458963aaa05861328d1f988aea3eab
[INFO] running `Command { std: "docker" "start" "-a" "f72174636fb7ee4ef218dc16b4246dc975458963aaa05861328d1f988aea3eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f72174636fb7ee4ef218dc16b4246dc975458963aaa05861328d1f988aea3eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f72174636fb7ee4ef218dc16b4246dc975458963aaa05861328d1f988aea3eab", kill_on_drop: false }`
[INFO] [stdout] f72174636fb7ee4ef218dc16b4246dc975458963aaa05861328d1f988aea3eab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2122f2c2c42eca7506110ae68028739c297b0ab42d4c0bdd8d1fa52c0b00ef40
[INFO] running `Command { std: "docker" "start" "-a" "2122f2c2c42eca7506110ae68028739c297b0ab42d4c0bdd8d1fa52c0b00ef40", kill_on_drop: false }`
[INFO] [stderr]     Checking battleship-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]  --> src/player.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn into(self) -> String {
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 9 |     self.into()
[INFO] [stdout]   |     ----------- recursive call site
[INFO] [stdout]   |
[INFO] [stdout]   = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]   = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]  --> src/player.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn into(self) -> String {
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 9 |     self.into()
[INFO] [stdout]   |     ----------- recursive call site
[INFO] [stdout]   |
[INFO] [stdout]   = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]   = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `player1` and `player2` are never read
[INFO] [stdout]  --> src/game.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Game {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 6 |   // The two players in the game
[INFO] [stdout] 7 |   pub player1: Player,
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 8 |   pub player2: Player,
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `player1` and `player2` are never read
[INFO] [stdout]  --> src/game.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Game {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 6 |   // The two players in the game
[INFO] [stdout] 7 |   pub player1: Player,
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 8 |   pub player2: Player,
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]  --> src/ship.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Ship {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 4 |   // The type of ship (e.g. "destroyer", "cruiser", etc.)
[INFO] [stdout] 5 |   pub kind: ShipKind,
[INFO] [stdout]   |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]  --> src/ship.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Ship {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 4 |   // The type of ship (e.g. "destroyer", "cruiser", etc.)
[INFO] [stdout] 5 |   pub kind: ShipKind,
[INFO] [stdout]   |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]   --> src/ship.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Ship {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 13 |   pub fn size(&self) -> usize {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]   --> src/ship.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Ship {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 13 |   pub fn size(&self) -> usize {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "2122f2c2c42eca7506110ae68028739c297b0ab42d4c0bdd8d1fa52c0b00ef40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2122f2c2c42eca7506110ae68028739c297b0ab42d4c0bdd8d1fa52c0b00ef40", kill_on_drop: false }`
[INFO] [stdout] 2122f2c2c42eca7506110ae68028739c297b0ab42d4c0bdd8d1fa52c0b00ef40