[INFO] cloning repository https://github.com/MWJones96/RustGo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MWJones96/RustGo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMWJones96%2FRustGo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMWJones96%2FRustGo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 29c4c09058a573aa0ff3fdcbd19565bd8caa3f76
[INFO] checking MWJones96/RustGo against try#44f3504e96c944ae54fc72b5f5008f53f7eda001 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMWJones96%2FRustGo" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MWJones96/RustGo on toolchain 44f3504e96c944ae54fc72b5f5008f53f7eda001
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MWJones96/RustGo
[INFO] finished tweaking git repo https://github.com/MWJones96/RustGo
[INFO] tweaked toml for git repo https://github.com/MWJones96/RustGo written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MWJones96/RustGo 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" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71f713d90da0d4764541c2c667a18e1e08f4a3948c8d5be37b95af34cd262652
[INFO] running `Command { std: "docker" "start" "-a" "71f713d90da0d4764541c2c667a18e1e08f4a3948c8d5be37b95af34cd262652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71f713d90da0d4764541c2c667a18e1e08f4a3948c8d5be37b95af34cd262652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f713d90da0d4764541c2c667a18e1e08f4a3948c8d5be37b95af34cd262652", kill_on_drop: false }`
[INFO] [stdout] 71f713d90da0d4764541c2c667a18e1e08f4a3948c8d5be37b95af34cd262652
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2ca47d1f6cde58ca1cb45f4bfe762ca965981d5084f56f6f61b6f1b2b170d35
[INFO] running `Command { std: "docker" "start" "-a" "e2ca47d1f6cde58ca1cb45f4bfe762ca965981d5084f56f6f61b6f1b2b170d35", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking rust_go v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/domain/go_board.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |         for row in (0..self.board_state.len()) {
[INFO] [stdout]    |                    ^                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -         for row in (0..self.board_state.len()) {
[INFO] [stdout] 36 +         for row in 0..self.board_state.len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/domain/go_board.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 |             for col in (0..self.board_state[0].len()) {
[INFO] [stdout]    |                        ^                            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 37 -             for col in (0..self.board_state[0].len()) {
[INFO] [stdout] 37 +             for col in 0..self.board_state[0].len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::util::group_liberties_aggregator::Group`
[INFO] [stdout]  --> src/domain/go_game.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::util::group_liberties_aggregator::Group;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::util::group_liberties_aggregator::GroupLibertiesAggregator`
[INFO] [stdout]  --> src/domain/go_game.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::util::group_liberties_aggregator::GroupLibertiesAggregator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::util::group_liberties_aggregator::Liberties`
[INFO] [stdout]  --> src/domain/go_game.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::util::group_liberties_aggregator::Liberties;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Mutex`
[INFO] [stdout]  --> src/domain/go_game.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/domain/go_game.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/domain/util/group_liberties_aggregator.rs:106:20
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 if (row < (board.board_state.len() - 1) as u32
[INFO] [stdout]     |                    ^
[INFO] [stdout] 107 |                     && board.board_state[(row + 1) as usize][col as usize].is_none())
[INFO] [stdout]     |                                                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 106 ~                 if row < (board.board_state.len() - 1) as u32
[INFO] [stdout] 107 ~                     && board.board_state[(row + 1) as usize][col as usize].is_none()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/domain/util/group_liberties_aggregator.rs:114:20
[INFO] [stdout]     |
[INFO] [stdout] 114 |                 if (col < (board.board_state[0].len() - 1) as u32
[INFO] [stdout]     |                    ^
[INFO] [stdout] 115 |                     && board.board_state[row as usize][(col + 1) as usize].is_none())
[INFO] [stdout]     |                                                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 ~                 if col < (board.board_state[0].len() - 1) as u32
[INFO] [stdout] 115 ~                     && board.board_state[row as usize][(col + 1) as usize].is_none()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/domain/go_board.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |         for row in (0..self.board_state.len()) {
[INFO] [stdout]    |                    ^                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -         for row in (0..self.board_state.len()) {
[INFO] [stdout] 36 +         for row in 0..self.board_state.len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/domain/go_board.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 |             for col in (0..self.board_state[0].len()) {
[INFO] [stdout]    |                        ^                            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 37 -             for col in (0..self.board_state[0].len()) {
[INFO] [stdout] 37 +             for col in 0..self.board_state[0].len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/domain/go_board.rs:101:20
[INFO] [stdout]     |
[INFO] [stdout] 101 |         for row in (0..board.board_state.len()) {
[INFO] [stdout]     |                    ^                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 101 -         for row in (0..board.board_state.len()) {
[INFO] [stdout] 101 +         for row in 0..board.board_state.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/domain/go_board.rs:102:24
[INFO] [stdout]     |
[INFO] [stdout] 102 |             for col in (0..board.board_state[0].len()) {
[INFO] [stdout]     |                        ^                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 -             for col in (0..board.board_state[0].len()) {
[INFO] [stdout] 102 +             for col in 0..board.board_state[0].len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::util::group_liberties_aggregator::Group`
[INFO] [stdout]  --> src/domain/go_game.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::util::group_liberties_aggregator::Group;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::util::group_liberties_aggregator::GroupLibertiesAggregator`
[INFO] [stdout]  --> src/domain/go_game.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::util::group_liberties_aggregator::GroupLibertiesAggregator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::util::group_liberties_aggregator::Liberties`
[INFO] [stdout]  --> src/domain/go_game.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::util::group_liberties_aggregator::Liberties;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Mutex`
[INFO] [stdout]  --> src/domain/go_game.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/domain/go_game.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/domain/util/group_liberties_aggregator.rs:106:20
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 if (row < (board.board_state.len() - 1) as u32
[INFO] [stdout]     |                    ^
[INFO] [stdout] 107 |                     && board.board_state[(row + 1) as usize][col as usize].is_none())
[INFO] [stdout]     |                                                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 106 ~                 if row < (board.board_state.len() - 1) as u32
[INFO] [stdout] 107 ~                     && board.board_state[(row + 1) as usize][col as usize].is_none()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/domain/util/group_liberties_aggregator.rs:114:20
[INFO] [stdout]     |
[INFO] [stdout] 114 |                 if (col < (board.board_state[0].len() - 1) as u32
[INFO] [stdout]     |                    ^
[INFO] [stdout] 115 |                     && board.board_state[row as usize][(col + 1) as usize].is_none())
[INFO] [stdout]     |                                                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 ~                 if col < (board.board_state[0].len() - 1) as u32
[INFO] [stdout] 115 ~                     && board.board_state[row as usize][(col + 1) as usize].is_none()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `clear` are never used
[INFO] [stdout]   --> src/domain/go_board.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl GoBoard {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(size: u32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/domain/go_game.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl GoGame {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 25 |     pub fn new(size: u32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `place_piece` is never used
[INFO] [stdout]  --> src/use_cases/place_piece/place_piece_requester.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait PlacePieceRequester {
[INFO] [stdout]   |           ------------------- method in this trait
[INFO] [stdout] 4 |     fn place_piece(&mut self, place_piece_input: PlacePieceInput) -> PlacePieceOutput;
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "e2ca47d1f6cde58ca1cb45f4bfe762ca965981d5084f56f6f61b6f1b2b170d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2ca47d1f6cde58ca1cb45f4bfe762ca965981d5084f56f6f61b6f1b2b170d35", kill_on_drop: false }`
[INFO] [stdout] e2ca47d1f6cde58ca1cb45f4bfe762ca965981d5084f56f6f61b6f1b2b170d35