[INFO] fetching crate gridit 0.1.0...
[INFO] checking gridit-0.1.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate gridit 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate gridit 0.1.0 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gridit 0.1.0
[INFO] finished tweaking crates.io crate gridit 0.1.0
[INFO] tweaked toml for crates.io crate gridit 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate gridit 0.1.0 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 263132b6d3832322bede676462b71755c4285ab19922ecda2c03499c7cbbac5b
[INFO] running `Command { std: "docker" "start" "-a" "263132b6d3832322bede676462b71755c4285ab19922ecda2c03499c7cbbac5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "263132b6d3832322bede676462b71755c4285ab19922ecda2c03499c7cbbac5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "263132b6d3832322bede676462b71755c4285ab19922ecda2c03499c7cbbac5b", kill_on_drop: false }`
[INFO] [stdout] 263132b6d3832322bede676462b71755c4285ab19922ecda2c03499c7cbbac5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "c0f310ae2919a3788488127651e63d1c0d9acf81835c61310a40b20494f262dc", kill_on_drop: false }`
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/gameoflife.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 |             let mut cell = grid.get_mut_unchecked(position);
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PositionsEnumerator`
[INFO] [stdout]  --> examples/board/piece/giraffe.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | use gridit::{Grid, Position, PositionsEnumerator};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grid`
[INFO] [stdout]   --> examples/board/piece/giraffe.rs:21:30
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn possible_moves(&self, grid: &Grid<BoardPiece>, pos: Position) -> Vec<Position> {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_grid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> examples/board/piece/giraffe.rs:21:55
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn possible_moves(&self, grid: &Grid<BoardPiece>, pos: Position) -> Vec<Position> {
[INFO] [stdout]    |                                                       ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/board/main.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let mut grid = gridit::Grid::from(start_board, 8, 8);
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.80s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "c0f310ae2919a3788488127651e63d1c0d9acf81835c61310a40b20494f262dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0f310ae2919a3788488127651e63d1c0d9acf81835c61310a40b20494f262dc", kill_on_drop: false }`
[INFO] [stdout] c0f310ae2919a3788488127651e63d1c0d9acf81835c61310a40b20494f262dc
[INFO] checking gridit-0.1.0 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate gridit 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate gridit 0.1.0 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gridit 0.1.0
[INFO] finished tweaking crates.io crate gridit 0.1.0
[INFO] tweaked toml for crates.io crate gridit 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate gridit 0.1.0 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e0e8c4e3e859c42e9ba4f40feff0a24f7b0ee893339ed1ff8246d98130480b7
[INFO] running `Command { std: "docker" "start" "-a" "7e0e8c4e3e859c42e9ba4f40feff0a24f7b0ee893339ed1ff8246d98130480b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e0e8c4e3e859c42e9ba4f40feff0a24f7b0ee893339ed1ff8246d98130480b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e0e8c4e3e859c42e9ba4f40feff0a24f7b0ee893339ed1ff8246d98130480b7", kill_on_drop: false }`
[INFO] [stdout] 7e0e8c4e3e859c42e9ba4f40feff0a24f7b0ee893339ed1ff8246d98130480b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 286e877cd5fd359cc3421c171a694dbcdeccb034e835619555a4fcfcf3b2b746
[INFO] running `Command { std: "docker" "start" "-a" "286e877cd5fd359cc3421c171a694dbcdeccb034e835619555a4fcfcf3b2b746", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.89
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[INFO] [stderr]    Compiling smart-default v0.6.0
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[INFO] [stderr]     Checking minimp3 v0.5.1
[INFO] [stderr]     Checking zip v0.5.11
[INFO] [stderr]     Checking rodio v0.13.1
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[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling cargo-platform v0.1.1
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[INFO] [stderr]     Checking smithay-client-toolkit v0.12.3
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[INFO] [stderr]    Compiling ggez v0.6.0-rc1
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[INFO] [stdout] warning: unused import: `PositionsEnumerator`
[INFO] [stdout]  --> examples/board/piece/giraffe.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | use gridit::{Grid, Position, PositionsEnumerator};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/gameoflife.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 |             let mut cell = grid.get_mut_unchecked(position);
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grid`
[INFO] [stdout]   --> examples/board/piece/giraffe.rs:21:30
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn possible_moves(&self, grid: &Grid<BoardPiece>, pos: Position) -> Vec<Position> {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_grid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> examples/board/piece/giraffe.rs:21:55
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn possible_moves(&self, grid: &Grid<BoardPiece>, pos: Position) -> Vec<Position> {
[INFO] [stdout]    |                                                       ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/board/main.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let mut grid = gridit::Grid::from(start_board, 8, 8);
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.82s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "286e877cd5fd359cc3421c171a694dbcdeccb034e835619555a4fcfcf3b2b746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "286e877cd5fd359cc3421c171a694dbcdeccb034e835619555a4fcfcf3b2b746", kill_on_drop: false }`
[INFO] [stdout] 286e877cd5fd359cc3421c171a694dbcdeccb034e835619555a4fcfcf3b2b746