[INFO] cloning repository https://github.com/voelklmichael/varidor [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/voelklmichael/varidor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoelklmichael%2Fvaridor", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoelklmichael%2Fvaridor'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ba8691397116cc03e96eb6721db8449ff1bfca68 [INFO] checking voelklmichael/varidor against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoelklmichael%2Fvaridor" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/voelklmichael/varidor on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/voelklmichael/varidor [INFO] finished tweaking git repo https://github.com/voelklmichael/varidor [INFO] tweaked toml for git repo https://github.com/voelklmichael/varidor written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/voelklmichael/varidor already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] a328ffc9f13bc6446c8ae68f827034b835ae908fcf5abd54e65b3f3a34145bbb [INFO] running `Command { std: "docker" "start" "-a" "a328ffc9f13bc6446c8ae68f827034b835ae908fcf5abd54e65b3f3a34145bbb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a328ffc9f13bc6446c8ae68f827034b835ae908fcf5abd54e65b3f3a34145bbb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a328ffc9f13bc6446c8ae68f827034b835ae908fcf5abd54e65b3f3a34145bbb", kill_on_drop: false }` [INFO] [stdout] a328ffc9f13bc6446c8ae68f827034b835ae908fcf5abd54e65b3f3a34145bbb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ae7d7b302db1677b7ca1cab7b971fe92694d68e6ac06484a5faa4078ea62f61b [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" "ae7d7b302db1677b7ca1cab7b971fe92694d68e6ac06484a5faa4078ea62f61b", kill_on_drop: false }` [INFO] [stderr] Checking varidor v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/javascript_interaction/mod.rs:127:25 [INFO] [stdout] | [INFO] [stdout] 127 | use std; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/javascript_interaction/mod.rs:127:25 [INFO] [stdout] | [INFO] [stdout] 127 | use std; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/lib.rs:87:1 [INFO] [stdout] | [INFO] [stdout] 87 | / lazy_static! { [INFO] [stdout] 88 | | static ref DATA: Mutex = Mutex::new(GameData::new()); [INFO] [stdout] 89 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/lib.rs:87:1 [INFO] [stdout] | [INFO] [stdout] 87 | / lazy_static! { [INFO] [stdout] 88 | | static ref DATA: Mutex = Mutex::new(GameData::new()); [INFO] [stdout] 89 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `Usize4` [INFO] [stdout] --> src/board_square/type_level_integers.rs:33:1 [INFO] [stdout] | [INFO] [stdout] 33 | pub type Usize4 = UsizeNext; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `Usize5` [INFO] [stdout] --> src/board_square/type_level_integers.rs:34:1 [INFO] [stdout] | [INFO] [stdout] 34 | pub type Usize5 = UsizeNext; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `wall_lookup_unsafe` [INFO] [stdout] --> src/board_square/square_board.rs:200:12 [INFO] [stdout] | [INFO] [stdout] 200 | pub fn wall_lookup_unsafe( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `croosing_lookup_unsafe` [INFO] [stdout] --> src/board_square/square_board.rs:211:12 [INFO] [stdout] | [INFO] [stdout] 211 | pub fn croosing_lookup_unsafe(&self, lower_left_field: FieldIndexSquare) -> WallCrossing { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `SquareBoard5` [INFO] [stdout] --> src/board_square/square_board5.rs:36:1 [INFO] [stdout] | [INFO] [stdout] 36 | / pub type SquareBoard5 = [INFO] [stdout] 37 | | SquareBoard; [INFO] [stdout] | |_________________________________________________________________________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `SquareBoard4` [INFO] [stdout] --> src/board_square/square_board4.rs:36:1 [INFO] [stdout] | [INFO] [stdout] 36 | / pub type SquareBoard4 = [INFO] [stdout] 37 | | SquareBoard; [INFO] [stdout] | |_________________________________________________________________________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `NotConnected` [INFO] [stdout] --> src/board_square/mod.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | NotConnected, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `FieldsNotAdjacent` [INFO] [stdout] --> src/board_square/mod.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 53 | FieldsNotAdjacent, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/board_square/player.rs:21:24 [INFO] [stdout] | [INFO] [stdout] 21 | [White, Black].into_iter() [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/board_square/square_board.rs:27:33 [INFO] [stdout] | [INFO] [stdout] 27 | [Up, Down, Left, Right].into_iter() [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `Usize4` [INFO] [stdout] --> src/board_square/type_level_integers.rs:33:1 [INFO] [stdout] | [INFO] [stdout] 33 | pub type Usize4 = UsizeNext; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `Usize5` [INFO] [stdout] --> src/board_square/type_level_integers.rs:34:1 [INFO] [stdout] | [INFO] [stdout] 34 | pub type Usize5 = UsizeNext; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `wall_lookup_unsafe` [INFO] [stdout] --> src/board_square/square_board.rs:200:12 [INFO] [stdout] | [INFO] [stdout] 200 | pub fn wall_lookup_unsafe( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `croosing_lookup_unsafe` [INFO] [stdout] --> src/board_square/square_board.rs:211:12 [INFO] [stdout] | [INFO] [stdout] 211 | pub fn croosing_lookup_unsafe(&self, lower_left_field: FieldIndexSquare) -> WallCrossing { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `SquareBoard5` [INFO] [stdout] --> src/board_square/square_board5.rs:36:1 [INFO] [stdout] | [INFO] [stdout] 36 | / pub type SquareBoard5 = [INFO] [stdout] 37 | | SquareBoard; [INFO] [stdout] | |_________________________________________________________________________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `SquareBoard4` [INFO] [stdout] --> src/board_square/square_board4.rs:36:1 [INFO] [stdout] | [INFO] [stdout] 36 | / pub type SquareBoard4 = [INFO] [stdout] 37 | | SquareBoard; [INFO] [stdout] | |_________________________________________________________________________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `NotConnected` [INFO] [stdout] --> src/board_square/mod.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | NotConnected, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `FieldsNotAdjacent` [INFO] [stdout] --> src/board_square/mod.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 53 | FieldsNotAdjacent, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/board_square/player.rs:21:24 [INFO] [stdout] | [INFO] [stdout] 21 | [White, Black].into_iter() [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/board_square/square_board.rs:27:33 [INFO] [stdout] | [INFO] [stdout] 27 | [Up, Down, Left, Right].into_iter() [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/board_square/mod.rs:175:13 [INFO] [stdout] | [INFO] [stdout] 175 | / new_visited_fields [INFO] [stdout] 176 | | .iter() [INFO] [stdout] 177 | | .map(|&x| visited_fields.push(x)) [INFO] [stdout] 178 | | .collect::>(); [INFO] [stdout] | |_____________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `SquareBoard3` [INFO] [stdout] --> src/board_square/square_board3.rs:36:1 [INFO] [stdout] | [INFO] [stdout] 36 | / pub type SquareBoard3 = [INFO] [stdout] 37 | | SquareBoard; [INFO] [stdout] | |_________________________________________________________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `SquareBoard4` [INFO] [stdout] --> src/board_square/square_board4.rs:36:1 [INFO] [stdout] | [INFO] [stdout] 36 | / pub type SquareBoard4 = [INFO] [stdout] 37 | | SquareBoard; [INFO] [stdout] | |_________________________________________________________________________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/board_square/player.rs:21:24 [INFO] [stdout] | [INFO] [stdout] 21 | [White, Black].into_iter() [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/board_square/square_board.rs:27:33 [INFO] [stdout] | [INFO] [stdout] 27 | [Up, Down, Left, Right].into_iter() [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/board_square/mod.rs:175:13 [INFO] [stdout] | [INFO] [stdout] 175 | / new_visited_fields [INFO] [stdout] 176 | | .iter() [INFO] [stdout] 177 | | .map(|&x| visited_fields.push(x)) [INFO] [stdout] 178 | | .collect::>(); [INFO] [stdout] | |_____________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `SquareBoard3` [INFO] [stdout] --> src/board_square/square_board3.rs:36:1 [INFO] [stdout] | [INFO] [stdout] 36 | / pub type SquareBoard3 = [INFO] [stdout] 37 | | SquareBoard; [INFO] [stdout] | |_________________________________________________________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/board_square/mod.rs:175:13 [INFO] [stdout] | [INFO] [stdout] 175 | / new_visited_fields [INFO] [stdout] 176 | | .iter() [INFO] [stdout] 177 | | .map(|&x| visited_fields.push(x)) [INFO] [stdout] 178 | | .collect::>(); [INFO] [stdout] | |_____________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `SquareBoard4` [INFO] [stdout] --> src/board_square/square_board4.rs:36:1 [INFO] [stdout] | [INFO] [stdout] 36 | / pub type SquareBoard4 = [INFO] [stdout] 37 | | SquareBoard; [INFO] [stdout] | |_________________________________________________________________________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/board_square/player.rs:21:24 [INFO] [stdout] | [INFO] [stdout] 21 | [White, Black].into_iter() [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/board_square/square_board.rs:27:33 [INFO] [stdout] | [INFO] [stdout] 27 | [Up, Down, Left, Right].into_iter() [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/board_square/mod.rs:175:13 [INFO] [stdout] | [INFO] [stdout] 175 | / new_visited_fields [INFO] [stdout] 176 | | .iter() [INFO] [stdout] 177 | | .map(|&x| visited_fields.push(x)) [INFO] [stdout] 178 | | .collect::>(); [INFO] [stdout] | |_____________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.26s [INFO] running `Command { std: "docker" "inspect" "ae7d7b302db1677b7ca1cab7b971fe92694d68e6ac06484a5faa4078ea62f61b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae7d7b302db1677b7ca1cab7b971fe92694d68e6ac06484a5faa4078ea62f61b", kill_on_drop: false }` [INFO] [stdout] ae7d7b302db1677b7ca1cab7b971fe92694d68e6ac06484a5faa4078ea62f61b