[INFO] cloning repository https://github.com/mtwtkman/nc2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mtwtkman/nc2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtwtkman%2Fnc2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtwtkman%2Fnc2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5513404181d3f93a2a74882d7a3decc75230e8d
[INFO] checking mtwtkman/nc2 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtwtkman%2Fnc2" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mtwtkman/nc2 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mtwtkman/nc2
[INFO] finished tweaking git repo https://github.com/mtwtkman/nc2
[INFO] tweaked toml for git repo https://github.com/mtwtkman/nc2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/mtwtkman/nc2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f7d39700b122e95aa54279f644c52992d84db59054c8092e266574b1c072f81
[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" "1f7d39700b122e95aa54279f644c52992d84db59054c8092e266574b1c072f81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f7d39700b122e95aa54279f644c52992d84db59054c8092e266574b1c072f81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f7d39700b122e95aa54279f644c52992d84db59054c8092e266574b1c072f81", kill_on_drop: false }`
[INFO] [stdout] 1f7d39700b122e95aa54279f644c52992d84db59054c8092e266574b1c072f81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0bda432641d78f96d87ea03949c7bb2b654f6e80695b3e3cb6327786c0176fe
[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" "a0bda432641d78f96d87ea03949c7bb2b654f6e80695b3e3cb6327786c0176fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.74
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]     Checking engine v0.1.0 (/opt/rustwide/workdir/engine)
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stdout] warning: associated function is never used: `is_occupied_by`
[INFO] [stdout]   --> engine/src/board.rs:84:19
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub(crate) fn is_occupied_by(&self, position: &Position, player: &Player) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_moveable`
[INFO] [stdout]    --> engine/src/board.rs:214:19
[INFO] [stdout]     |
[INFO] [stdout] 214 |     pub(crate) fn is_moveable(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `moveable_directions`
[INFO] [stdout]    --> engine/src/board.rs:323:19
[INFO] [stdout]     |
[INFO] [stdout] 323 |     pub(crate) fn moveable_directions(&self) -> BTreeSet<Direction> {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_left_edge`
[INFO] [stdout]   --> engine/src/position.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn is_left_edge(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_right_edge`
[INFO] [stdout]   --> engine/src/position.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn is_right_edge(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_middle`
[INFO] [stdout]   --> engine/src/position.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn is_middle(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_left_edge_top`
[INFO] [stdout]    --> engine/src/position.rs:185:19
[INFO] [stdout]     |
[INFO] [stdout] 185 |     pub(crate) fn is_left_edge_top(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_left_edge_bottom`
[INFO] [stdout]    --> engine/src/position.rs:189:19
[INFO] [stdout]     |
[INFO] [stdout] 189 |     pub(crate) fn is_left_edge_bottom(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_right_edge_top`
[INFO] [stdout]    --> engine/src/position.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub(crate) fn is_right_edge_top(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_right_edge_bottom`
[INFO] [stdout]    --> engine/src/position.rs:197:19
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub(crate) fn is_right_edge_bottom(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_right_edge_middle_row`
[INFO] [stdout]    --> engine/src/position.rs:201:19
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub(crate) fn is_right_edge_middle_row(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_left_edge_middle_row`
[INFO] [stdout]    --> engine/src/position.rs:205:19
[INFO] [stdout]     |
[INFO] [stdout] 205 |     pub(crate) fn is_left_edge_middle_row(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_middle_column_top`
[INFO] [stdout]    --> engine/src/position.rs:209:19
[INFO] [stdout]     |
[INFO] [stdout] 209 |     pub(crate) fn is_middle_column_top(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_middle_column_bottom`
[INFO] [stdout]    --> engine/src/position.rs:213:19
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub(crate) fn is_middle_column_bottom(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_occupied_by`
[INFO] [stdout]   --> engine/src/board.rs:84:19
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub(crate) fn is_occupied_by(&self, position: &Position, player: &Player) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.74
[INFO] [stderr]     Checking js-sys v0.3.51
[INFO] [stderr]     Checking web-sys v0.3.51
[INFO] [stderr]     Checking wasm v0.1.0 (/opt/rustwide/workdir/wasm)
[INFO] [stdout] warning: unused imports: `Action`, `Column`, `Position`, `Row`, `board::Direction`
[INFO] [stdout]  --> wasm/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     board::Direction,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 3 |     position::{Column, Position, Row},
[INFO] [stdout]   |                ^^^^^^  ^^^^^^^^  ^^^
[INFO] [stdout] 4 |     Action, Game,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> wasm/src/lib.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let board = self.game.board.clone();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Action`, `Column`, `Position`, `Row`, `board::Direction`
[INFO] [stdout]  --> wasm/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     board::Direction,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 3 |     position::{Column, Position, Row},
[INFO] [stdout]   |                ^^^^^^  ^^^^^^^^  ^^^
[INFO] [stdout] 4 |     Action, Game,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Battle` in public interface (error E0446)
[INFO] [stdout]   --> wasm/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[wasm_bindgen]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout]    = note: this warning originates in the attribute macro `wasm_bindgen::prelude::__wasm_bindgen_class_marker` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `game`
[INFO] [stdout]   --> wasm/src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     game: Game,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `history`
[INFO] [stdout]   --> wasm/src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     history: Vec<Game>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> wasm/src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `display_board`
[INFO] [stdout]   --> wasm/src/lib.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn display_board(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> wasm/src/lib.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let board = self.game.board.clone();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Battle` in public interface (error E0446)
[INFO] [stdout]   --> wasm/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[wasm_bindgen]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout]    = note: this warning originates in the attribute macro `wasm_bindgen::prelude::__wasm_bindgen_class_marker` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `game`
[INFO] [stdout]   --> wasm/src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     game: Game,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `history`
[INFO] [stdout]   --> wasm/src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     history: Vec<Game>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> wasm/src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `display_board`
[INFO] [stdout]   --> wasm/src/lib.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn display_board(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.84s
[INFO] running `Command { std: "docker" "inspect" "a0bda432641d78f96d87ea03949c7bb2b654f6e80695b3e3cb6327786c0176fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0bda432641d78f96d87ea03949c7bb2b654f6e80695b3e3cb6327786c0176fe", kill_on_drop: false }`
[INFO] [stdout] a0bda432641d78f96d87ea03949c7bb2b654f6e80695b3e3cb6327786c0176fe