[INFO] cloning repository https://github.com/default-username-852/schack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/default-username-852/schack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdefault-username-852%2Fschack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdefault-username-852%2Fschack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 35689cb2fc3be1519ba1b57010483362ca8b9f4d
[INFO] testing default-username-852/schack against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdefault-username-852%2Fschack" "/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/default-username-852/schack on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/default-username-852/schack
[INFO] finished tweaking git repo https://github.com/default-username-852/schack
[INFO] tweaked toml for git repo https://github.com/default-username-852/schack written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/default-username-852/schack already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 113cde7dbe42317fe3c8fcc4384736b226e78b2155df36d1e8ed1564167c0f71
[INFO] running `Command { std: "docker" "start" "-a" "113cde7dbe42317fe3c8fcc4384736b226e78b2155df36d1e8ed1564167c0f71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "113cde7dbe42317fe3c8fcc4384736b226e78b2155df36d1e8ed1564167c0f71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "113cde7dbe42317fe3c8fcc4384736b226e78b2155df36d1e8ed1564167c0f71", kill_on_drop: false }`
[INFO] [stdout] 113cde7dbe42317fe3c8fcc4384736b226e78b2155df36d1e8ed1564167c0f71
[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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a5d0ec6a3e78291fb3ad21b67a05b7858f9dcbac5bad281fab7ee51d577915cb
[INFO] running `Command { std: "docker" "start" "-a" "a5d0ec6a3e78291fb3ad21b67a05b7858f9dcbac5bad281fab7ee51d577915cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling schackmotor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:455:9
[INFO] [stdout]     |
[INFO] [stdout] 455 |         (1 <= self.y && self.y <= 8 && 1 <= self.x && self.x <= 8)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `piece`
[INFO] [stdout]     --> src/lib.rs:1097:18
[INFO] [stdout]      |
[INFO] [stdout] 1097 |             Some(piece) => { piece_color = self.get_piece_at(piece_position).unwrap().color.clone(); }
[INFO] [stdout]      |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_piece`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:906:33
[INFO] [stdout]     |
[INFO] [stdout] 906 | / ...                   &possible_moves.push(Move::new(
[INFO] [stdout] 907 | | ...                       self.piece_type.clone(),
[INFO] [stdout] 908 | | ...                       self.color.clone(),
[INFO] [stdout] 909 | | ...                       self.position.clone(),
[INFO] [stdout] ...   |
[INFO] [stdout] 912 | | ...                       move_type
[INFO] [stdout] 913 | | ...                   ));
[INFO] [stdout]     | |________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:917:25
[INFO] [stdout]     |
[INFO] [stdout] 917 | /                         &possible_moves.push(Move::new(
[INFO] [stdout] 918 | |                             self.piece_type.clone(),
[INFO] [stdout] 919 | |                             self.color.clone(),
[INFO] [stdout] 920 | |                             self.position.clone(),
[INFO] [stdout] ...   |
[INFO] [stdout] 923 | |                             move_type
[INFO] [stdout] 924 | |                         ));
[INFO] [stdout]     | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:983:17
[INFO] [stdout]     |
[INFO] [stdout] 983 |                 &out.push((&piece, possible_moves));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/lib.rs:1059:13
[INFO] [stdout]      |
[INFO] [stdout] 1059 | /             &standard_layout.push(Piece {
[INFO] [stdout] 1060 | |                 position: Position {
[INFO] [stdout] 1061 | |                     x: piece_prototype.2,
[INFO] [stdout] 1062 | |                     y: piece_prototype.3,
[INFO] [stdout] ...    |
[INFO] [stdout] 1065 | |                 piece_type: piece_type.clone()
[INFO] [stdout] 1066 | |             });
[INFO] [stdout]      | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "a5d0ec6a3e78291fb3ad21b67a05b7858f9dcbac5bad281fab7ee51d577915cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5d0ec6a3e78291fb3ad21b67a05b7858f9dcbac5bad281fab7ee51d577915cb", kill_on_drop: false }`
[INFO] [stdout] a5d0ec6a3e78291fb3ad21b67a05b7858f9dcbac5bad281fab7ee51d577915cb
[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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8beeec9cf6af4901a372a30021184677215cbc6af686235999df646ea56595a
[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" "e8beeec9cf6af4901a372a30021184677215cbc6af686235999df646ea56595a", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:455:9
[INFO] [stdout]     |
[INFO] [stdout] 455 |         (1 <= self.y && self.y <= 8 && 1 <= self.x && self.x <= 8)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling schackmotor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `piece`
[INFO] [stdout]     --> src/lib.rs:1097:18
[INFO] [stdout]      |
[INFO] [stdout] 1097 |             Some(piece) => { piece_color = self.get_piece_at(piece_position).unwrap().color.clone(); }
[INFO] [stdout]      |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_piece`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:906:33
[INFO] [stdout]     |
[INFO] [stdout] 906 | / ...                   &possible_moves.push(Move::new(
[INFO] [stdout] 907 | | ...                       self.piece_type.clone(),
[INFO] [stdout] 908 | | ...                       self.color.clone(),
[INFO] [stdout] 909 | | ...                       self.position.clone(),
[INFO] [stdout] ...   |
[INFO] [stdout] 912 | | ...                       move_type
[INFO] [stdout] 913 | | ...                   ));
[INFO] [stdout]     | |________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:917:25
[INFO] [stdout]     |
[INFO] [stdout] 917 | /                         &possible_moves.push(Move::new(
[INFO] [stdout] 918 | |                             self.piece_type.clone(),
[INFO] [stdout] 919 | |                             self.color.clone(),
[INFO] [stdout] 920 | |                             self.position.clone(),
[INFO] [stdout] ...   |
[INFO] [stdout] 923 | |                             move_type
[INFO] [stdout] 924 | |                         ));
[INFO] [stdout]     | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:983:17
[INFO] [stdout]     |
[INFO] [stdout] 983 |                 &out.push((&piece, possible_moves));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/lib.rs:1059:13
[INFO] [stdout]      |
[INFO] [stdout] 1059 | /             &standard_layout.push(Piece {
[INFO] [stdout] 1060 | |                 position: Position {
[INFO] [stdout] 1061 | |                     x: piece_prototype.2,
[INFO] [stdout] 1062 | |                     y: piece_prototype.3,
[INFO] [stdout] ...    |
[INFO] [stdout] 1065 | |                 piece_type: piece_type.clone()
[INFO] [stdout] 1066 | |             });
[INFO] [stdout]      | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:455:9
[INFO] [stdout]     |
[INFO] [stdout] 455 |         (1 <= self.y && self.y <= 8 && 1 <= self.x && self.x <= 8)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `piece`
[INFO] [stdout]     --> src/lib.rs:1097:18
[INFO] [stdout]      |
[INFO] [stdout] 1097 |             Some(piece) => { piece_color = self.get_piece_at(piece_position).unwrap().color.clone(); }
[INFO] [stdout]      |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_piece`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:906:33
[INFO] [stdout]     |
[INFO] [stdout] 906 | / ...                   &possible_moves.push(Move::new(
[INFO] [stdout] 907 | | ...                       self.piece_type.clone(),
[INFO] [stdout] 908 | | ...                       self.color.clone(),
[INFO] [stdout] 909 | | ...                       self.position.clone(),
[INFO] [stdout] ...   |
[INFO] [stdout] 912 | | ...                       move_type
[INFO] [stdout] 913 | | ...                   ));
[INFO] [stdout]     | |________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:917:25
[INFO] [stdout]     |
[INFO] [stdout] 917 | /                         &possible_moves.push(Move::new(
[INFO] [stdout] 918 | |                             self.piece_type.clone(),
[INFO] [stdout] 919 | |                             self.color.clone(),
[INFO] [stdout] 920 | |                             self.position.clone(),
[INFO] [stdout] ...   |
[INFO] [stdout] 923 | |                             move_type
[INFO] [stdout] 924 | |                         ));
[INFO] [stdout]     | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:983:17
[INFO] [stdout]     |
[INFO] [stdout] 983 |                 &out.push((&piece, possible_moves));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/lib.rs:1059:13
[INFO] [stdout]      |
[INFO] [stdout] 1059 | /             &standard_layout.push(Piece {
[INFO] [stdout] 1060 | |                 position: Position {
[INFO] [stdout] 1061 | |                     x: piece_prototype.2,
[INFO] [stdout] 1062 | |                     y: piece_prototype.3,
[INFO] [stdout] ...    |
[INFO] [stdout] 1065 | |                 piece_type: piece_type.clone()
[INFO] [stdout] 1066 | |             });
[INFO] [stdout]      | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "e8beeec9cf6af4901a372a30021184677215cbc6af686235999df646ea56595a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8beeec9cf6af4901a372a30021184677215cbc6af686235999df646ea56595a", kill_on_drop: false }`
[INFO] [stdout] e8beeec9cf6af4901a372a30021184677215cbc6af686235999df646ea56595a
[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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 507a0700b10bd528a9e645d7b5b936f4ff68438ba60fddaccf0fd9be7e1f1765
[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" "507a0700b10bd528a9e645d7b5b936f4ff68438ba60fddaccf0fd9be7e1f1765", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stdout] running 11 tests
[INFO] [stderr]    --> src/lib.rs:455:9
[INFO] [stdout] test test_gamestate ... ok
[INFO] [stderr]     |
[INFO] [stderr] 455 |         (1 <= self.y && self.y <= 8 && 1 <= self.x && self.x <= 8)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `piece`
[INFO] [stderr]     --> src/lib.rs:1097:18
[INFO] [stderr]      |
[INFO] [stderr] 1097 |             Some(piece) => { piece_color = self.get_piece_at(piece_position).unwrap().color.clone(); }
[INFO] [stderr]      |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_piece`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:906:33
[INFO] [stderr]     |
[INFO] [stderr] 906 | / ...                   &possible_moves.push(Move::new(
[INFO] [stderr] 907 | | ...                       self.piece_type.clone(),
[INFO] [stderr] 908 | | ...                       self.color.clone(),
[INFO] [stderr] 909 | | ...                       self.position.clone(),
[INFO] [stderr] ...   |
[INFO] [stderr] 912 | | ...                       move_type
[INFO] [stderr] 913 | | ...                   ));
[INFO] [stderr]     | |________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:917:25
[INFO] [stderr]     |
[INFO] [stderr] 917 | /                         &possible_moves.push(Move::new(
[INFO] [stderr] 918 | |                             self.piece_type.clone(),
[INFO] [stderr] 919 | |                             self.color.clone(),
[INFO] [stderr] 920 | |                             self.position.clone(),
[INFO] [stderr] ...   |
[INFO] [stderr] 923 | |                             move_type
[INFO] [stderr] 924 | |                         ));
[INFO] [stderr]     | |__________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:983:17
[INFO] [stderr]     |
[INFO] [stderr] 983 |                 &out.push((&piece, possible_moves));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]     --> src/lib.rs:1059:13
[INFO] [stderr]      |
[INFO] [stderr] 1059 | /             &standard_layout.push(Piece {
[INFO] [stderr] 1060 | |                 position: Position {
[INFO] [stderr] 1061 | |                     x: piece_prototype.2,
[INFO] [stderr] 1062 | |                     y: piece_prototype.3,
[INFO] [stderr] ...    |
[INFO] [stderr] 1065 | |                 piece_type: piece_type.clone()
[INFO] [stderr] 1066 | |             });
[INFO] [stderr]      | |______________^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:455:9
[INFO] [stderr]     |
[INFO] [stderr] 455 |         (1 <= self.y && self.y <= 8 && 1 <= self.x && self.x <= 8)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `piece`
[INFO] [stderr]     --> src/lib.rs:1097:18
[INFO] [stderr]      |
[INFO] [stderr] 1097 |             Some(piece) => { piece_color = self.get_piece_at(piece_position).unwrap().color.clone(); }
[INFO] [stderr]      |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_piece`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:906:33
[INFO] [stderr]     |
[INFO] [stderr] 906 | / ...                   &possible_moves.push(Move::new(
[INFO] [stderr] 907 | | ...                       self.piece_type.clone(),
[INFO] [stderr] 908 | | ...                       self.color.clone(),
[INFO] [stderr] 909 | | ...                       self.position.clone(),
[INFO] [stderr] ...   |
[INFO] [stderr] 912 | | ...                       move_type
[INFO] [stderr] 913 | | ...                   ));
[INFO] [stderr]     | |________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:917:25
[INFO] [stderr]     |
[INFO] [stderr] 917 | /                         &possible_moves.push(Move::new(
[INFO] [stderr] 918 | |                             self.piece_type.clone(),
[INFO] [stderr] 919 | |                             self.color.clone(),
[INFO] [stderr] 920 | |                             self.position.clone(),
[INFO] [stderr] ...   |
[INFO] [stderr] 923 | |                             move_type
[INFO] [stderr] 924 | |                         ));
[INFO] [stderr]     | |__________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:983:17
[INFO] [stderr]     |
[INFO] [stderr] 983 |                 &out.push((&piece, possible_moves));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]     --> src/lib.rs:1059:13
[INFO] [stderr]      |
[INFO] [stderr] 1059 | /             &standard_layout.push(Piece {
[INFO] [stderr] 1060 | |                 position: Position {
[INFO] [stderr] 1061 | |                     x: piece_prototype.2,
[INFO] [stderr] 1062 | |                     y: piece_prototype.3,
[INFO] [stderr] ...    |
[INFO] [stderr] 1065 | |                 piece_type: piece_type.clone()
[INFO] [stderr] 1066 | |             });
[INFO] [stderr]      | |______________^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/schackmotor-b14318b8c3c744a6)
[INFO] [stdout] test test_castling ... ok
[INFO] [stdout] test test_check ... ok
[INFO] [stdout] test test_piece ... ok
[INFO] [stdout] test test_chess_notation ... ok
[INFO] [stdout] test test_en_passant ... ok
[INFO] [stdout] test test_bad_castling ... ok
[INFO] [stdout] test test_promotion ... ok
[INFO] [stdout] test test_game_states ... ok
[INFO] [stdout] test test_standard_board ... ok
[INFO] [stderr]    Doc-tests schackmotor
[INFO] [stdout] test test_standard_castling ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:455:9
[INFO] [stderr]     |
[INFO] [stderr] 455 |         (1 <= self.y && self.y <= 8 && 1 <= self.x && self.x <= 8)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "507a0700b10bd528a9e645d7b5b936f4ff68438ba60fddaccf0fd9be7e1f1765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "507a0700b10bd528a9e645d7b5b936f4ff68438ba60fddaccf0fd9be7e1f1765", kill_on_drop: false }`
[INFO] [stdout] 507a0700b10bd528a9e645d7b5b936f4ff68438ba60fddaccf0fd9be7e1f1765