[INFO] cloning repository https://github.com/JackMordaunt/fog-of-chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JackMordaunt/fog-of-chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackMordaunt%2Ffog-of-chess", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b823de3984a9846340d3dec058550efbe6e00428
[INFO] testing JackMordaunt/fog-of-chess against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackMordaunt%2Ffog-of-chess" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JackMordaunt/fog-of-chess
[INFO] finished tweaking git repo https://github.com/JackMordaunt/fog-of-chess
[INFO] tweaked toml for git repo https://github.com/JackMordaunt/fog-of-chess written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JackMordaunt/fog-of-chess on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JackMordaunt/fog-of-chess 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]    Compiling chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:65:19
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let (mut ctx, mut event_loop) = ContextBuilder::new("Fog of War", "Jack Mordaunt")
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:511:13
[INFO] [stdout]     |
[INFO] [stdout] 511 | /             mb.rectangle(
[INFO] [stdout] 512 | |                 graphics::DrawMode::fill(),
[INFO] [stdout] 513 | |                 graphics::Rect::new(x * w, y * h, w, h),
[INFO] [stdout] 514 | |                 color,
[INFO] [stdout] 515 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 511 |             let _ = mb.rectangle(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:572:13
[INFO] [stdout]     |
[INFO] [stdout] 572 | /             mb.rectangle(
[INFO] [stdout] 573 | |                 DrawMode::stroke(2.0),
[INFO] [stdout] 574 | |                 Rect::new(x * w, y * h, w, h),
[INFO] [stdout] 575 | |                 PURE_APPLE,
[INFO] [stdout] 576 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 572 |             let _ = mb.rectangle(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:613:21
[INFO] [stdout]     |
[INFO] [stdout] 613 | /                     mb.rectangle(
[INFO] [stdout] 614 | |                         graphics::DrawMode::fill(),
[INFO] [stdout] 615 | |                         graphics::Rect::new(x * w, y * h, w, h),
[INFO] [stdout] 616 | |                         graphics::Color::BLACK,
[INFO] [stdout] 617 | |                     );
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 613 |                     let _ = mb.rectangle(
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/main.rs:939:13
[INFO] [stdout]     |
[INFO] [stdout] 939 |     fn iter(&self) -> BoardIter {
[INFO] [stdout]     |             ^^^^^     --------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |             |
[INFO] [stdout]     |             this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 939 |     fn iter(&self) -> BoardIter<'_> {
[INFO] [stdout]     |                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5m 31s
[INFO] running `Command { std: "docker" "inspect" "7ba61fd8c38650c07ede363365c8e726cfcb2d319c211b3b22eac4898fe41fae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ba61fd8c38650c07ede363365c8e726cfcb2d319c211b3b22eac4898fe41fae", kill_on_drop: false }`
[INFO] [stdout] 7ba61fd8c38650c07ede363365c8e726cfcb2d319c211b3b22eac4898fe41fae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47b32f8c3a28a89dd73d86eecf815bbd44f5f055e52111e4f30cdb055aa16839
[INFO] running `Command { std: "docker" "start" "-a" "47b32f8c3a28a89dd73d86eecf815bbd44f5f055e52111e4f30cdb055aa16839", kill_on_drop: false }`
[INFO] [stderr]    Compiling chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:65:19
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let (mut ctx, mut event_loop) = ContextBuilder::new("Fog of War", "Jack Mordaunt")
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:511:13
[INFO] [stdout]     |
[INFO] [stdout] 511 | /             mb.rectangle(
[INFO] [stdout] 512 | |                 graphics::DrawMode::fill(),
[INFO] [stdout] 513 | |                 graphics::Rect::new(x * w, y * h, w, h),
[INFO] [stdout] 514 | |                 color,
[INFO] [stdout] 515 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 511 |             let _ = mb.rectangle(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:572:13
[INFO] [stdout]     |
[INFO] [stdout] 572 | /             mb.rectangle(
[INFO] [stdout] 573 | |                 DrawMode::stroke(2.0),
[INFO] [stdout] 574 | |                 Rect::new(x * w, y * h, w, h),
[INFO] [stdout] 575 | |                 PURE_APPLE,
[INFO] [stdout] 576 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 572 |             let _ = mb.rectangle(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:613:21
[INFO] [stdout]     |
[INFO] [stdout] 613 | /                     mb.rectangle(
[INFO] [stdout] 614 | |                         graphics::DrawMode::fill(),
[INFO] [stdout] 615 | |                         graphics::Rect::new(x * w, y * h, w, h),
[INFO] [stdout] 616 | |                         graphics::Color::BLACK,
[INFO] [stdout] 617 | |                     );
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 613 |                     let _ = mb.rectangle(
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/main.rs:939:13
[INFO] [stdout]     |
[INFO] [stdout] 939 |     fn iter(&self) -> BoardIter {
[INFO] [stdout]     |             ^^^^^     --------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |             |
[INFO] [stdout]     |             this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 939 |     fn iter(&self) -> BoardIter<'_> {
[INFO] [stdout]     |                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "47b32f8c3a28a89dd73d86eecf815bbd44f5f055e52111e4f30cdb055aa16839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b32f8c3a28a89dd73d86eecf815bbd44f5f055e52111e4f30cdb055aa16839", kill_on_drop: false }`
[INFO] [stdout] 47b32f8c3a28a89dd73d86eecf815bbd44f5f055e52111e4f30cdb055aa16839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ec14cb989ee57611e8e1a3eda28461a6c79ec07fcd47fd32ab78a7de358c3bf1
[INFO] running `Command { std: "docker" "start" "-a" "ec14cb989ee57611e8e1a3eda28461a6c79ec07fcd47fd32ab78a7de358c3bf1", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:65:19
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let (mut ctx, mut event_loop) = ContextBuilder::new("Fog of War", "Jack Mordaunt")
[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: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:511:13
[INFO] [stderr]     |
[INFO] [stderr] 511 | /             mb.rectangle(
[INFO] [stderr] 512 | |                 graphics::DrawMode::fill(),
[INFO] [stderr] 513 | |                 graphics::Rect::new(x * w, y * h, w, h),
[INFO] [stderr] 514 | |                 color,
[INFO] [stderr] 515 | |             );
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 511 |             let _ = mb.rectangle(
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:572:13
[INFO] [stderr]     |
[INFO] [stderr] 572 | /             mb.rectangle(
[INFO] [stderr] 573 | |                 DrawMode::stroke(2.0),
[INFO] [stderr] 574 | |                 Rect::new(x * w, y * h, w, h),
[INFO] [stderr] 575 | |                 PURE_APPLE,
[INFO] [stderr] 576 | |             );
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 572 |             let _ = mb.rectangle(
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:613:21
[INFO] [stderr]     |
[INFO] [stderr] 613 | /                     mb.rectangle(
[INFO] [stderr] 614 | |                         graphics::DrawMode::fill(),
[INFO] [stderr] 615 | |                         graphics::Rect::new(x * w, y * h, w, h),
[INFO] [stderr] 616 | |                         graphics::Color::BLACK,
[INFO] [stderr] 617 | |                     );
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 613 |                     let _ = mb.rectangle(
[INFO] [stderr]     |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/main.rs:939:13
[INFO] [stderr]     |
[INFO] [stderr] 939 |     fn iter(&self) -> BoardIter {
[INFO] [stderr]     |             ^^^^^     --------- the lifetime gets resolved as `'_`
[INFO] [stderr]     |             |
[INFO] [stderr]     |             this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 939 |     fn iter(&self) -> BoardIter<'_> {
[INFO] [stderr]     |                                ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `chess` (bin "chess" test) generated 5 warnings (run `cargo fix --bin "chess" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chess-7652f26ec43dbb43)
[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" "ec14cb989ee57611e8e1a3eda28461a6c79ec07fcd47fd32ab78a7de358c3bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec14cb989ee57611e8e1a3eda28461a6c79ec07fcd47fd32ab78a7de358c3bf1", kill_on_drop: false }`
[INFO] [stdout] ec14cb989ee57611e8e1a3eda28461a6c79ec07fcd47fd32ab78a7de358c3bf1
