[INFO] cloning repository https://github.com/0xkarambit/chess-uwu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xkarambit/chess-uwu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkarambit%2Fchess-uwu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkarambit%2Fchess-uwu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58b165c412ff8fae92d7af095b20b89c95552347
[INFO] testing 0xkarambit/chess-uwu against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkarambit%2Fchess-uwu" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0xkarambit/chess-uwu
[INFO] finished tweaking git repo https://github.com/0xkarambit/chess-uwu
[INFO] tweaked toml for git repo https://github.com/0xkarambit/chess-uwu written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0xkarambit/chess-uwu on toolchain 9f93af291970322f4f1c6315ccde4d7078201159
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0xkarambit/chess-uwu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68591773726daae83da9637aa3bd6f15c799d6fb44d4d1b27c808e4478a61691
[INFO] running `Command { std: "docker" "start" "-a" "68591773726daae83da9637aa3bd6f15c799d6fb44d4d1b27c808e4478a61691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68591773726daae83da9637aa3bd6f15c799d6fb44d4d1b27c808e4478a61691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68591773726daae83da9637aa3bd6f15c799d6fb44d4d1b27c808e4478a61691", kill_on_drop: false }`
[INFO] [stdout] 68591773726daae83da9637aa3bd6f15c799d6fb44d4d1b27c808e4478a61691
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24d6183fce6f8a61600526fa64cdc496b52864c893de28a6a30e0372a5a03a69
[INFO] running `Command { std: "docker" "start" "-a" "24d6183fce6f8a61600526fa64cdc496b52864c893de28a6a30e0372a5a03a69", kill_on_drop: false }`
[INFO] [stderr]    Compiling chess-uwu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         !unimplemented!()
[INFO] [stdout]    |         ^----------------
[INFO] [stdout]    |         ||
[INFO] [stdout]    |         |any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/main.rs:43:31
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn legal_moves(&self, board: &board::BoardType) -> Vec<Position> {
[INFO] [stdout]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position` and `has_moved_before` are never read
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Piece {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     position: Position, 
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 30 |     is_black: bool,
[INFO] [stdout] 31 |     has_moved_before: bool
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Piece` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `legal_moves` is never used
[INFO] [stdout]   --> src/main.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl Piece {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn legal_moves(&self, board: &board::BoardType) -> Vec<Position> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BLACK` is never constructed
[INFO] [stdout]   --> src/board.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | enum PlaySide {
[INFO] [stdout]    |      -------- variant in this enum
[INFO] [stdout] 10 |     WHITE,
[INFO] [stdout] 11 |     BLACK
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `turn` is never read
[INFO] [stdout]   --> src/board.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) struct Board {
[INFO] [stdout]    |                   ----- field in this struct
[INFO] [stdout] 15 |     state: BoardType,
[INFO] [stdout] 16 |     turn: PlaySide,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "24d6183fce6f8a61600526fa64cdc496b52864c893de28a6a30e0372a5a03a69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24d6183fce6f8a61600526fa64cdc496b52864c893de28a6a30e0372a5a03a69", kill_on_drop: false }`
[INFO] [stdout] 24d6183fce6f8a61600526fa64cdc496b52864c893de28a6a30e0372a5a03a69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f54c95eb52d4dd5c6a2372a6b437d4bdea4d770b4ce8dcc3b9961322fd4ec376
[INFO] running `Command { std: "docker" "start" "-a" "f54c95eb52d4dd5c6a2372a6b437d4bdea4d770b4ce8dcc3b9961322fd4ec376", kill_on_drop: false }`
[INFO] [stderr]    Compiling chess-uwu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         !unimplemented!()
[INFO] [stdout]    |         ^----------------
[INFO] [stdout]    |         ||
[INFO] [stdout]    |         |any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/main.rs:43:31
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn legal_moves(&self, board: &board::BoardType) -> Vec<Position> {
[INFO] [stdout]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position` and `has_moved_before` are never read
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Piece {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     position: Position, 
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 30 |     is_black: bool,
[INFO] [stdout] 31 |     has_moved_before: bool
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Piece` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `legal_moves` is never used
[INFO] [stdout]   --> src/main.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl Piece {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn legal_moves(&self, board: &board::BoardType) -> Vec<Position> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BLACK` is never constructed
[INFO] [stdout]   --> src/board.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | enum PlaySide {
[INFO] [stdout]    |      -------- variant in this enum
[INFO] [stdout] 10 |     WHITE,
[INFO] [stdout] 11 |     BLACK
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `turn` is never read
[INFO] [stdout]   --> src/board.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) struct Board {
[INFO] [stdout]    |                   ----- field in this struct
[INFO] [stdout] 15 |     state: BoardType,
[INFO] [stdout] 16 |     turn: PlaySide,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "f54c95eb52d4dd5c6a2372a6b437d4bdea4d770b4ce8dcc3b9961322fd4ec376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f54c95eb52d4dd5c6a2372a6b437d4bdea4d770b4ce8dcc3b9961322fd4ec376", kill_on_drop: false }`
[INFO] [stdout] f54c95eb52d4dd5c6a2372a6b437d4bdea4d770b4ce8dcc3b9961322fd4ec376
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 073cc375106cd5220204f4473ca53a3834a1d249401595da221d2d129db505f7
[INFO] running `Command { std: "docker" "start" "-a" "073cc375106cd5220204f4473ca53a3834a1d249401595da221d2d129db505f7", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         !unimplemented!()
[INFO] [stderr]    |         ^----------------
[INFO] [stderr]    |         ||
[INFO] [stderr]    |         |any code following this expression is unreachable
[INFO] [stderr]    |         unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]   --> src/main.rs:43:31
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn legal_moves(&self, board: &board::BoardType) -> Vec<Position> {
[INFO] [stderr]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `position` and `has_moved_before` are never read
[INFO] [stderr]   --> src/main.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | struct Piece {
[INFO] [stderr]    |        ----- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 29 |     position: Position, 
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 30 |     is_black: bool,
[INFO] [stderr] 31 |     has_moved_before: bool
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Piece` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `legal_moves` is never used
[INFO] [stderr]   --> src/main.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 34 | impl Piece {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 43 |     pub fn legal_moves(&self, board: &board::BoardType) -> Vec<Position> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `BLACK` is never constructed
[INFO] [stderr]   --> src/board.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr]  9 | enum PlaySide {
[INFO] [stderr]    |      -------- variant in this enum
[INFO] [stderr] 10 |     WHITE,
[INFO] [stderr] 11 |     BLACK
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `turn` is never read
[INFO] [stderr]   --> src/board.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub(crate) struct Board {
[INFO] [stderr]    |                   ----- field in this struct
[INFO] [stderr] 15 |     state: BoardType,
[INFO] [stderr] 16 |     turn: PlaySide,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `chess-uwu` (bin "chess-uwu" test) generated 6 warnings (run `cargo fix --bin "chess-uwu" -p chess-uwu --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chess_uwu-f54af21491d36116)
[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" "073cc375106cd5220204f4473ca53a3834a1d249401595da221d2d129db505f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "073cc375106cd5220204f4473ca53a3834a1d249401595da221d2d129db505f7", kill_on_drop: false }`
[INFO] [stdout] 073cc375106cd5220204f4473ca53a3834a1d249401595da221d2d129db505f7
