[INFO] cloning repository https://github.com/T-O-R-U-S/chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/T-O-R-U-S/chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT-O-R-U-S%2Fchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT-O-R-U-S%2Fchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67145f19afd841aadda0746ef6bc051db029876e
[INFO] testing T-O-R-U-S/chess against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT-O-R-U-S%2Fchess" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/T-O-R-U-S/chess on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/T-O-R-U-S/chess
[INFO] finished tweaking git repo https://github.com/T-O-R-U-S/chess
[INFO] tweaked toml for git repo https://github.com/T-O-R-U-S/chess written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/T-O-R-U-S/chess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d193d07883144292c2849a5c1d25e599b59ac8ee7f7d6323db7770f465f27bac
[INFO] running `Command { std: "docker" "start" "-a" "d193d07883144292c2849a5c1d25e599b59ac8ee7f7d6323db7770f465f27bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d193d07883144292c2849a5c1d25e599b59ac8ee7f7d6323db7770f465f27bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d193d07883144292c2849a5c1d25e599b59ac8ee7f7d6323db7770f465f27bac", kill_on_drop: false }`
[INFO] [stdout] d193d07883144292c2849a5c1d25e599b59ac8ee7f7d6323db7770f465f27bac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f3380c156befa47033fc7f4a9eaa7d4ea7e242e9a99e78bc50c1ebad97c8856
[INFO] running `Command { std: "docker" "start" "-a" "8f3380c156befa47033fc7f4a9eaa7d4ea7e242e9a99e78bc50c1ebad97c8856", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling console v0.14.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/board/pieces.rs:67:24
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Piece::  Pawn(x, y, s, has_moved) => {
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `has_moved`
[INFO] [stdout]   --> src/board/pieces.rs:67:27
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Piece::  Pawn(x, y, s, has_moved) => {
[INFO] [stdout]    |                                    ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_has_moved`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default`
[INFO] [stdout]   --> src/board/pieces.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |                 let default = || {
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_1`
[INFO] [stdout]   --> src/board/pieces.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let x_1 = x+1;
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_x_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_1`
[INFO] [stdout]   --> src/board/pieces.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 let y_1 = y+1;
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_y_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_pos`
[INFO] [stdout]   --> src/board/pieces.rs:65:29
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn movement(&mut self, new_pos: (isize, isize), board: &mut Board) -> Result<()> {
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/board/pieces.rs:65:54
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn movement(&mut self, new_pos: (isize, isize), board: &mut Board) -> Result<()> {
[INFO] [stdout]    |                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_option`
[INFO] [stdout]   --> src/board/pieces.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn to_option(&self) -> Option<Piece> {
[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: `set_pos`
[INFO] [stdout]   --> src/board/pieces.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn set_pos(&self, prev_pos:(isize, isize), new_pos: (isize, isize), board: &mut Board) -> Option<Piece> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.32s
[INFO] running `Command { std: "docker" "inspect" "8f3380c156befa47033fc7f4a9eaa7d4ea7e242e9a99e78bc50c1ebad97c8856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f3380c156befa47033fc7f4a9eaa7d4ea7e242e9a99e78bc50c1ebad97c8856", kill_on_drop: false }`
[INFO] [stdout] 8f3380c156befa47033fc7f4a9eaa7d4ea7e242e9a99e78bc50c1ebad97c8856
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de39c89d877472e52825a72f59caf3bdcd35b82afc382b7b101fe0f7b9ff372d
[INFO] running `Command { std: "docker" "start" "-a" "de39c89d877472e52825a72f59caf3bdcd35b82afc382b7b101fe0f7b9ff372d", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/board/pieces.rs:67:24
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Piece::  Pawn(x, y, s, has_moved) => {
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `has_moved`
[INFO] [stdout]   --> src/board/pieces.rs:67:27
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Piece::  Pawn(x, y, s, has_moved) => {
[INFO] [stdout]    |                                    ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_has_moved`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default`
[INFO] [stdout]   --> src/board/pieces.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |                 let default = || {
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_1`
[INFO] [stdout]   --> src/board/pieces.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let x_1 = x+1;
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_x_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_1`
[INFO] [stdout]   --> src/board/pieces.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 let y_1 = y+1;
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_y_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_pos`
[INFO] [stdout]   --> src/board/pieces.rs:65:29
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn movement(&mut self, new_pos: (isize, isize), board: &mut Board) -> Result<()> {
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/board/pieces.rs:65:54
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn movement(&mut self, new_pos: (isize, isize), board: &mut Board) -> Result<()> {
[INFO] [stdout]    |                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_option`
[INFO] [stdout]   --> src/board/pieces.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn to_option(&self) -> Option<Piece> {
[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: `set_pos`
[INFO] [stdout]   --> src/board/pieces.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn set_pos(&self, prev_pos:(isize, isize), new_pos: (isize, isize), board: &mut Board) -> Option<Piece> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/chess-9e9f53ff2f941af8)
[INFO] running `Command { std: "docker" "inspect" "de39c89d877472e52825a72f59caf3bdcd35b82afc382b7b101fe0f7b9ff372d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de39c89d877472e52825a72f59caf3bdcd35b82afc382b7b101fe0f7b9ff372d", kill_on_drop: false }`
[INFO] [stdout] de39c89d877472e52825a72f59caf3bdcd35b82afc382b7b101fe0f7b9ff372d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2a5aec141d0a34fd77a8e30ab6ae50647243e71c26037c69ab7d88572afdbcde
[INFO] running `Command { std: "docker" "start" "-a" "2a5aec141d0a34fd77a8e30ab6ae50647243e71c26037c69ab7d88572afdbcde", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/board/pieces.rs:67:24
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Piece::  Pawn(x, y, s, has_moved) => {
[INFO] [stderr]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `has_moved`
[INFO] [stderr]   --> src/board/pieces.rs:67:27
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Piece::  Pawn(x, y, s, has_moved) => {
[INFO] [stderr]    |                                    ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_has_moved`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `default`
[INFO] [stderr]   --> src/board/pieces.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 80 |                 let default = || {
[INFO] [stderr]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_1`
[INFO] [stderr]   --> src/board/pieces.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 let x_1 = x+1;
[INFO] [stderr]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_x_1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y_1`
[INFO] [stderr]   --> src/board/pieces.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |                 let y_1 = y+1;
[INFO] [stderr]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_y_1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new_pos`
[INFO] [stderr]   --> src/board/pieces.rs:65:29
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn movement(&mut self, new_pos: (isize, isize), board: &mut Board) -> Result<()> {
[INFO] [stderr]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]   --> src/board/pieces.rs:65:54
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn movement(&mut self, new_pos: (isize, isize), board: &mut Board) -> Result<()> {
[INFO] [stderr]    |                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_option`
[INFO] [stderr]   --> src/board/pieces.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn to_option(&self) -> Option<Piece> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_pos`
[INFO] [stderr]   --> src/board/pieces.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn set_pos(&self, prev_pos:(isize, isize), new_pos: (isize, isize), board: &mut Board) -> Option<Piece> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `chess` (bin "chess" test) generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 17.50s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chess-9e9f53ff2f941af8)
[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" "2a5aec141d0a34fd77a8e30ab6ae50647243e71c26037c69ab7d88572afdbcde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a5aec141d0a34fd77a8e30ab6ae50647243e71c26037c69ab7d88572afdbcde", kill_on_drop: false }`
[INFO] [stdout] 2a5aec141d0a34fd77a8e30ab6ae50647243e71c26037c69ab7d88572afdbcde