[INFO] cloning repository https://github.com/Norem80/battleships
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Norem80/battleships" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNorem80%2Fbattleships", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNorem80%2Fbattleships'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d143478030d1824f31ac3390a37aafab71aab041
[INFO] checking Norem80/battleships against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNorem80%2Fbattleships" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Norem80/battleships on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Norem80/battleships
[INFO] finished tweaking git repo https://github.com/Norem80/battleships
[INFO] tweaked toml for git repo https://github.com/Norem80/battleships written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Norem80/battleships already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tui v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69a2ac660ff412cc85dcb617884786d0131f7dcb97fbe6b77a0a82f500b648be
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "69a2ac660ff412cc85dcb617884786d0131f7dcb97fbe6b77a0a82f500b648be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69a2ac660ff412cc85dcb617884786d0131f7dcb97fbe6b77a0a82f500b648be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69a2ac660ff412cc85dcb617884786d0131f7dcb97fbe6b77a0a82f500b648be", kill_on_drop: false }`
[INFO] [stdout] 69a2ac660ff412cc85dcb617884786d0131f7dcb97fbe6b77a0a82f500b648be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 305dd9676ad4a6bda0ebc1a769494ad7c7619c6e7f9fae7ce900cc3db077c149
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "305dd9676ad4a6bda0ebc1a769494ad7c7619c6e7f9fae7ce900cc3db077c149", kill_on_drop: false }`
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking tui v0.14.0
[INFO] [stderr]     Checking battleships v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `PlayerState`
[INFO] [stdout]  --> src/engine/player.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct PlayerState {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Overlap`
[INFO] [stdout]   --> src/engine/player.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Overlap,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotEnoughRoom`
[INFO] [stdout]   --> src/engine/player.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     NotEnoughRoom,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CoordsOutOfBounds`
[INFO] [stdout]   --> src/engine/player.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     CoordsOutOfBounds,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AlreadyHitField`
[INFO] [stdout]   --> src/engine/player.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     AlreadyHitField,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Success`
[INFO] [stdout]   --> src/engine/player.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Success,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Miss`
[INFO] [stdout]   --> src/engine/player.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Miss,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]   --> src/engine/player.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ship`
[INFO] [stdout]   --> src/engine/player.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Ship,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Miss`
[INFO] [stdout]   --> src/engine/player.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Miss,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `msg`
[INFO] [stdout]   --> src/engine/player.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn msg(&self) -> &str {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_field_index`
[INFO] [stdout]   --> src/engine/player.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn get_field_index(x: u32, y: u32) -> Result<usize, PlayerStateError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/engine/player.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_ship`
[INFO] [stdout]   --> src/engine/player.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn add_ship(
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_fields`
[INFO] [stdout]   --> src/engine/player.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn create_fields(
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_ship_valid`
[INFO] [stdout]    --> src/engine/player.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn is_ship_valid(
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_enemy_hit`
[INFO] [stdout]    --> src/engine/player.rs:132:12
[INFO] [stdout]     |
[INFO] [stdout] 132 |     pub fn try_enemy_hit(&mut self, x: u32, y: u32) -> Result<HitState, PlayerStateError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `enemy_hit`
[INFO] [stdout]    --> src/engine/player.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn enemy_hit(&mut self, x: u32, y: u32, field_index: usize) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_guess_hit`
[INFO] [stdout]    --> src/engine/player.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn try_guess_hit(
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Ship`
[INFO] [stdout]  --> src/engine/ship.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Ship {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/engine/ship.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(ship_type: ShipType, coords: Vec<Coord>) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_coord`
[INFO] [stdout]   --> src/engine/ship.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn find_coord(&mut self, x: u32, y: u32) -> Option<&mut Coord> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_alive`
[INFO] [stdout]   --> src/engine/ship.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn is_alive(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ShipDirection`
[INFO] [stdout]   --> src/engine/ship.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum ShipDirection {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `direction_value`
[INFO] [stdout]   --> src/engine/ship.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn direction_value(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ShipType`
[INFO] [stdout]   --> src/engine/ship.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub enum ShipType {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ship_size`
[INFO] [stdout]   --> src/engine/ship.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn ship_size(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Coord`
[INFO] [stdout]   --> src/engine/ship.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct Coord {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/engine/ship.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn new(x: u32, y: u32) -> Option<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_index`
[INFO] [stdout]   --> src/engine/ship.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn from_index(index: usize) -> Option<Self> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `msg`
[INFO] [stdout]   --> src/engine/player.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn msg(&self) -> &str {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Destroyer`
[INFO] [stdout]   --> src/engine/ship.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     Destroyer,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `Command { std: "docker" "inspect" "305dd9676ad4a6bda0ebc1a769494ad7c7619c6e7f9fae7ce900cc3db077c149", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "305dd9676ad4a6bda0ebc1a769494ad7c7619c6e7f9fae7ce900cc3db077c149", kill_on_drop: false }`
[INFO] [stdout] 305dd9676ad4a6bda0ebc1a769494ad7c7619c6e7f9fae7ce900cc3db077c149