[INFO] updating cached repository https://github.com/wraikny/reversi-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b1c3bef35530084317a808fcc9d9a60c9e8a8abe [INFO] testing wraikny/reversi-rs against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwraikny%2Freversi-rs" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wraikny/reversi-rs on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wraikny/reversi-rs [INFO] finished tweaking git repo https://github.com/wraikny/reversi-rs [INFO] tweaked toml for git repo https://github.com/wraikny/reversi-rs written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/wraikny/reversi-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] d06a96993629e83a7e03c56f615e60beeef7cf83b148301c9fd25a0c95421a4d [INFO] running `Command { std: "docker" "start" "-a" "d06a96993629e83a7e03c56f615e60beeef7cf83b148301c9fd25a0c95421a4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d06a96993629e83a7e03c56f615e60beeef7cf83b148301c9fd25a0c95421a4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d06a96993629e83a7e03c56f615e60beeef7cf83b148301c9fd25a0c95421a4d", kill_on_drop: false }` [INFO] [stdout] d06a96993629e83a7e03c56f615e60beeef7cf83b148301c9fd25a0c95421a4d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0a98378096797802bcc71aa6479645b6c6928bce6e5610752c1076f0cd658ca1 [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" "0a98378096797802bcc71aa6479645b6c6928bce6e5610752c1076f0cd658ca1", kill_on_drop: false }` [INFO] [stderr] Compiling lazy_static v1.0.1 [INFO] [stderr] Compiling crossbeam-utils v0.2.2 [INFO] [stderr] Compiling rayon-core v1.4.0 [INFO] [stderr] Compiling crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling crossbeam-deque v0.2.0 [INFO] [stderr] Compiling rayon v1.0.1 [INFO] [stderr] Compiling reversi v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/board.rs:112:22 [INFO] [stdout] | [INFO] [stdout] 112 | f : &Fn((usize, usize)) -> bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize)) -> bool` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/board.rs:113:22 [INFO] [stdout] | [INFO] [stdout] 113 | g : &Fn((usize, usize)) -> usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize)) -> usize` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/board.rs:114:22 [INFO] [stdout] | [INFO] [stdout] 114 | h : &Fn((usize, usize), (usize, usize)) -> bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize), (usize, usize)) -> bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/board.rs:124:25 [INFO] [stdout] | [INFO] [stdout] 124 | let mut board = board.iter() [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `self.colors` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/board.rs:237:13 [INFO] [stdout] | [INFO] [stdout] 236 | if let Some(Some(color)) = self.colors.get(&coordinate) { [INFO] [stdout] | ----------- immutable borrow occurs here [INFO] [stdout] 237 | self.colors.insert(coordinate, Some(color.rev())); [INFO] [stdout] | ^^^^^^^^^^^ ----- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.88s [INFO] running `Command { std: "docker" "inspect" "0a98378096797802bcc71aa6479645b6c6928bce6e5610752c1076f0cd658ca1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a98378096797802bcc71aa6479645b6c6928bce6e5610752c1076f0cd658ca1", kill_on_drop: false }` [INFO] [stdout] 0a98378096797802bcc71aa6479645b6c6928bce6e5610752c1076f0cd658ca1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0b0a506e651322f2f5cad8af8643896d2ea1cfdec6f85832f1924d6b5651359a [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" "0b0a506e651322f2f5cad8af8643896d2ea1cfdec6f85832f1924d6b5651359a", kill_on_drop: false }` [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/board.rs:112:22 [INFO] [stdout] | [INFO] [stdout] 112 | f : &Fn((usize, usize)) -> bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize)) -> bool` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/board.rs:113:22 [INFO] [stdout] | [INFO] [stdout] 113 | g : &Fn((usize, usize)) -> usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize)) -> usize` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/board.rs:114:22 [INFO] [stdout] | [INFO] [stdout] 114 | h : &Fn((usize, usize), (usize, usize)) -> bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize), (usize, usize)) -> bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/board.rs:124:25 [INFO] [stdout] | [INFO] [stdout] 124 | let mut board = board.iter() [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `self.colors` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/board.rs:237:13 [INFO] [stdout] | [INFO] [stdout] 236 | if let Some(Some(color)) = self.colors.get(&coordinate) { [INFO] [stdout] | ----------- immutable borrow occurs here [INFO] [stdout] 237 | self.colors.insert(coordinate, Some(color.rev())); [INFO] [stdout] | ^^^^^^^^^^^ ----- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling reversi v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/board.rs:112:22 [INFO] [stdout] | [INFO] [stdout] 112 | f : &Fn((usize, usize)) -> bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize)) -> bool` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/board.rs:113:22 [INFO] [stdout] | [INFO] [stdout] 113 | g : &Fn((usize, usize)) -> usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize)) -> usize` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/board.rs:114:22 [INFO] [stdout] | [INFO] [stdout] 114 | h : &Fn((usize, usize), (usize, usize)) -> bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize), (usize, usize)) -> bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/board.rs:124:25 [INFO] [stdout] | [INFO] [stdout] 124 | let mut board = board.iter() [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `self.colors` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/board.rs:237:13 [INFO] [stdout] | [INFO] [stdout] 236 | if let Some(Some(color)) = self.colors.get(&coordinate) { [INFO] [stdout] | ----------- immutable borrow occurs here [INFO] [stdout] 237 | self.colors.insert(coordinate, Some(color.rev())); [INFO] [stdout] | ^^^^^^^^^^^ ----- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.24s [INFO] running `Command { std: "docker" "inspect" "0b0a506e651322f2f5cad8af8643896d2ea1cfdec6f85832f1924d6b5651359a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b0a506e651322f2f5cad8af8643896d2ea1cfdec6f85832f1924d6b5651359a", kill_on_drop: false }` [INFO] [stdout] 0b0a506e651322f2f5cad8af8643896d2ea1cfdec6f85832f1924d6b5651359a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e760e42db86d631cf2a4148e95371dc2cdb588c63b71ec5cc77ddf67ce5c1eda [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" "e760e42db86d631cf2a4148e95371dc2cdb588c63b71ec5cc77ddf67ce5c1eda", kill_on_drop: false }` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/board.rs:112:22 [INFO] [stderr] | [INFO] [stderr] 112 | f : &Fn((usize, usize)) -> bool, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize)) -> bool` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/board.rs:113:22 [INFO] [stderr] | [INFO] [stderr] 113 | g : &Fn((usize, usize)) -> usize, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize)) -> usize` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/board.rs:112:22 [INFO] [stderr] | [INFO] [stderr] 112 | f : &Fn((usize, usize)) -> bool, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize)) -> bool` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/board.rs:114:22 [INFO] [stderr] | [INFO] [stderr] 114 | h : &Fn((usize, usize), (usize, usize)) -> bool, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize), (usize, usize)) -> bool` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/board.rs:113:22 [INFO] [stderr] | [INFO] [stderr] 113 | g : &Fn((usize, usize)) -> usize, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize)) -> usize` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/board.rs:114:22 [INFO] [stderr] | [INFO] [stderr] 114 | h : &Fn((usize, usize), (usize, usize)) -> bool, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn((usize, usize), (usize, usize)) -> bool` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/board.rs:124:25 [INFO] [stderr] | [INFO] [stderr] 124 | let mut board = board.iter() [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/board.rs:124:25 [INFO] [stderr] | [INFO] [stderr] 124 | let mut board = board.iter() [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `self.colors` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/board.rs:237:13 [INFO] [stderr] | [INFO] [stderr] 236 | if let Some(Some(color)) = self.colors.get(&coordinate) { [INFO] [stderr] | ----------- immutable borrow occurs here [INFO] [stderr] 237 | self.colors.insert(coordinate, Some(color.rev())); [INFO] [stderr] | ^^^^^^^^^^^ ----- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `self.colors` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/board.rs:237:13 [INFO] [stderr] | [INFO] [stderr] 236 | if let Some(Some(color)) = self.colors.get(&coordinate) { [INFO] [stderr] | ----------- immutable borrow occurs here [INFO] [stderr] 237 | self.colors.insert(coordinate, Some(color.rev())); [INFO] [stderr] | ^^^^^^^^^^^ ----- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/reversi-b1c874af150a4fd1 [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 [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/reversi-dec728e1e6d55294 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stderr] Doc-tests reversi [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [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 [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e760e42db86d631cf2a4148e95371dc2cdb588c63b71ec5cc77ddf67ce5c1eda", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e760e42db86d631cf2a4148e95371dc2cdb588c63b71ec5cc77ddf67ce5c1eda", kill_on_drop: false }` [INFO] [stdout] e760e42db86d631cf2a4148e95371dc2cdb588c63b71ec5cc77ddf67ce5c1eda