[INFO] cloning repository https://github.com/PerfectDemo/ninja_chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PerfectDemo/ninja_chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPerfectDemo%2Fninja_chess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPerfectDemo%2Fninja_chess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae7847cafcdf0c11db0cd0f6a8494e2e6ee9c829
[INFO] testing PerfectDemo/ninja_chess against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPerfectDemo%2Fninja_chess" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PerfectDemo/ninja_chess on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PerfectDemo/ninja_chess
[INFO] finished tweaking git repo https://github.com/PerfectDemo/ninja_chess
[INFO] tweaked toml for git repo https://github.com/PerfectDemo/ninja_chess written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/PerfectDemo/ninja_chess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98da3d6de50b384d5fd1dc101057f8bd3775d774f2673af2bccf746e5c6dbeef
[INFO] running `Command { std: "docker" "start" "-a" "98da3d6de50b384d5fd1dc101057f8bd3775d774f2673af2bccf746e5c6dbeef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98da3d6de50b384d5fd1dc101057f8bd3775d774f2673af2bccf746e5c6dbeef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98da3d6de50b384d5fd1dc101057f8bd3775d774f2673af2bccf746e5c6dbeef", kill_on_drop: false }`
[INFO] [stdout] 98da3d6de50b384d5fd1dc101057f8bd3775d774f2673af2bccf746e5c6dbeef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3b01b032b267301e736e7e227eee0474951545b700b04008c7e59d201234410
[INFO] running `Command { std: "docker" "start" "-a" "f3b01b032b267301e736e7e227eee0474951545b700b04008c7e59d201234410", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling ninja_chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `max`, `min`
[INFO] [stdout]  --> src/operate/knight.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp::{min, max};
[INFO] [stdout]   |                ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `STAGE`
[INFO] [stdout]  --> src/operate/knight.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::{PIECES, STAGE, COLOUR};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `from_location` is assigned to, but never used
[INFO] [stdout]   --> src/operate/knight.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut from_location;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_from_location` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `from_location` is never read
[INFO] [stdout]   --> src/operate/knight.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 |                     from_location = Location {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/operate/knight.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn check(board: &mut Board, location: &(Location, Location)) -> bool {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/operate/knight.rs:33:33
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn check(board: &mut Board, location: &(Location, Location)) -> bool {
[INFO] [stdout]    |                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/operate/knight.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn move_location(board: &mut Board, location: &(Location, Location)) {
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/operate/knight.rs:36:41
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn move_location(board: &mut Board, location: &(Location, Location)) {
[INFO] [stdout]    |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/operate/knight.rs:39:18
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn after_run(board: &mut Board, location: &(Location, Location)) {
[INFO] [stdout]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/operate/knight.rs:39:37
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn after_run(board: &mut Board, location: &(Location, Location)) {
[INFO] [stdout]    |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `init`
[INFO] [stdout]   --> src/board.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn init() -> Board<'a> {
[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: `print`
[INFO] [stdout]    --> src/board.rs:140:8
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn print(&self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/parser.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn parse<'a>(command: String) -> Result<Command, &'a str> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/operate/mod.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.53s
[INFO] running `Command { std: "docker" "inspect" "f3b01b032b267301e736e7e227eee0474951545b700b04008c7e59d201234410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3b01b032b267301e736e7e227eee0474951545b700b04008c7e59d201234410", kill_on_drop: false }`
[INFO] [stdout] f3b01b032b267301e736e7e227eee0474951545b700b04008c7e59d201234410
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6524793f144046df71fa849a6e564f8fa1893994d48968928ba9301237607d0
[INFO] running `Command { std: "docker" "start" "-a" "c6524793f144046df71fa849a6e564f8fa1893994d48968928ba9301237607d0", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `max`, `min`
[INFO] [stdout]  --> src/operate/knight.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp::{min, max};
[INFO] [stdout]   |                ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `STAGE`
[INFO] [stdout]  --> src/operate/knight.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::{PIECES, STAGE, COLOUR};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `from_location` is assigned to, but never used
[INFO] [stdout]   --> src/operate/knight.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut from_location;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_from_location` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `from_location` is never read
[INFO] [stdout]   --> src/operate/knight.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 |                     from_location = Location {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/operate/knight.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn check(board: &mut Board, location: &(Location, Location)) -> bool {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/operate/knight.rs:33:33
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn check(board: &mut Board, location: &(Location, Location)) -> bool {
[INFO] [stdout]    |                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ninja_chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/operate/knight.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn move_location(board: &mut Board, location: &(Location, Location)) {
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/operate/knight.rs:36:41
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn move_location(board: &mut Board, location: &(Location, Location)) {
[INFO] [stdout]    |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/operate/knight.rs:39:18
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn after_run(board: &mut Board, location: &(Location, Location)) {
[INFO] [stdout]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/operate/knight.rs:39:37
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn after_run(board: &mut Board, location: &(Location, Location)) {
[INFO] [stdout]    |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `init`
[INFO] [stdout]   --> src/board.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn init() -> Board<'a> {
[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: `print`
[INFO] [stdout]    --> src/board.rs:140:8
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn print(&self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/parser.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn parse<'a>(command: String) -> Result<Command, &'a str> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/operate/mod.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `max`, `min`
[INFO] [stdout]  --> src/operate/knight.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp::{min, max};
[INFO] [stdout]   |                ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `STAGE`
[INFO] [stdout]  --> src/operate/knight.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::{PIECES, STAGE, COLOUR};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `from_location` is assigned to, but never used
[INFO] [stdout]   --> src/operate/knight.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut from_location;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_from_location` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `from_location` is never read
[INFO] [stdout]   --> src/operate/knight.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 |                     from_location = Location {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/operate/knight.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn check(board: &mut Board, location: &(Location, Location)) -> bool {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/operate/knight.rs:33:33
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn check(board: &mut Board, location: &(Location, Location)) -> bool {
[INFO] [stdout]    |                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/operate/knight.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn move_location(board: &mut Board, location: &(Location, Location)) {
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/operate/knight.rs:36:41
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn move_location(board: &mut Board, location: &(Location, Location)) {
[INFO] [stdout]    |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/operate/knight.rs:39:18
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn after_run(board: &mut Board, location: &(Location, Location)) {
[INFO] [stdout]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/operate/knight.rs:39:37
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn after_run(board: &mut Board, location: &(Location, Location)) {
[INFO] [stdout]    |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/parser.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn parse<'a>(command: String) -> Result<Command, &'a str> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/operate/mod.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "c6524793f144046df71fa849a6e564f8fa1893994d48968928ba9301237607d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6524793f144046df71fa849a6e564f8fa1893994d48968928ba9301237607d0", kill_on_drop: false }`
[INFO] [stdout] c6524793f144046df71fa849a6e564f8fa1893994d48968928ba9301237607d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 236015a6df87b0dc49de579461fb8b84f5e3b8449c67fdd509f9c813959125ce
[INFO] running `Command { std: "docker" "start" "-a" "236015a6df87b0dc49de579461fb8b84f5e3b8449c67fdd509f9c813959125ce", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `max`, `min`
[INFO] [stderr]  --> src/operate/knight.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cmp::{min, max};
[INFO] [stderr]   |                ^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `STAGE`
[INFO] [stderr]  --> src/operate/knight.rs:7:21
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::{PIECES, STAGE, COLOUR};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `from_location` is assigned to, but never used
[INFO] [stderr]   --> src/operate/knight.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let mut from_location;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_from_location` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `from_location` is never read
[INFO] [stderr]   --> src/operate/knight.rs:22:21
[INFO] [stderr]    |
[INFO] [stderr] 22 |                     from_location = Location {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]   --> src/operate/knight.rs:33:14
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn check(board: &mut Board, location: &(Location, Location)) -> bool {
[INFO] [stderr]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `location`
[INFO] [stderr]   --> src/operate/knight.rs:33:33
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn check(board: &mut Board, location: &(Location, Location)) -> bool {
[INFO] [stderr]    |                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]   --> src/operate/knight.rs:36:22
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn move_location(board: &mut Board, location: &(Location, Location)) {
[INFO] [stderr]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `location`
[INFO] [stderr]   --> src/operate/knight.rs:36:41
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn move_location(board: &mut Board, location: &(Location, Location)) {
[INFO] [stderr]    |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]   --> src/operate/knight.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn after_run(board: &mut Board, location: &(Location, Location)) {
[INFO] [stderr]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `location`
[INFO] [stderr]   --> src/operate/knight.rs:39:37
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn after_run(board: &mut Board, location: &(Location, Location)) {
[INFO] [stderr]    |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `init`
[INFO] [stderr]   --> src/board.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn init() -> Board<'a> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print`
[INFO] [stderr]    --> src/board.rs:140:8
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn print(&self) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse`
[INFO] [stderr]   --> src/parser.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn parse<'a>(command: String) -> Result<Command, &'a str> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/operate/mod.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse`
[INFO] [stderr]   --> src/parser.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn parse<'a>(command: String) -> Result<Command, &'a str> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ninja_chess` (lib) generated 14 warnings
[INFO] [stderr] warning: `ninja_chess` (lib test) generated 12 warnings (11 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ninja_chess-5be50268feb4506f)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test board::tests::show_board ... ok
[INFO] [stdout] test operate::rook::tests::show_board ... ok
[INFO] [stdout] test piece::tests::show ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ninja_chess-c6e9dd25e151d82e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ninja_chess
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "236015a6df87b0dc49de579461fb8b84f5e3b8449c67fdd509f9c813959125ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "236015a6df87b0dc49de579461fb8b84f5e3b8449c67fdd509f9c813959125ce", kill_on_drop: false }`
[INFO] [stdout] 236015a6df87b0dc49de579461fb8b84f5e3b8449c67fdd509f9c813959125ce