[INFO] cloning repository https://github.com/mxrr/rust-ant
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mxrr/rust-ant" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmxrr%2Frust-ant", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmxrr%2Frust-ant'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 678a59f798100aaefa3808300307b27bca27cd0e
[INFO] checking mxrr/rust-ant against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmxrr%2Frust-ant" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mxrr/rust-ant on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mxrr/rust-ant
[INFO] finished tweaking git repo https://github.com/mxrr/rust-ant
[INFO] tweaked toml for git repo https://github.com/mxrr/rust-ant written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/mxrr/rust-ant already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d15d05ee6e6ac2c4f5aca6d75d6c1a9bff1a5b5e86644b8fbe0ca3b0f7763da6
[INFO] running `Command { std: "docker" "start" "-a" "d15d05ee6e6ac2c4f5aca6d75d6c1a9bff1a5b5e86644b8fbe0ca3b0f7763da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d15d05ee6e6ac2c4f5aca6d75d6c1a9bff1a5b5e86644b8fbe0ca3b0f7763da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d15d05ee6e6ac2c4f5aca6d75d6c1a9bff1a5b5e86644b8fbe0ca3b0f7763da6", kill_on_drop: false }`
[INFO] [stdout] d15d05ee6e6ac2c4f5aca6d75d6c1a9bff1a5b5e86644b8fbe0ca3b0f7763da6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b437ea8c94a7e128f70e90f8654b5fee37c55ac7dd544d5022d028b00803677a
[INFO] running `Command { std: "docker" "start" "-a" "b437ea8c94a7e128f70e90f8654b5fee37c55ac7dd544d5022d028b00803677a", kill_on_drop: false }`
[INFO] [stderr]    Compiling sfml-build v0.4.0
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking widestring v0.4.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]    Compiling csfml-system-sys v0.6.0
[INFO] [stderr]    Compiling csfml-window-sys v0.6.0
[INFO] [stderr]    Compiling csfml-audio-sys v0.6.0
[INFO] [stderr]    Compiling csfml-graphics-sys v0.6.0
[INFO] [stderr]     Checking sfml v0.16.0
[INFO] [stderr]     Checking rusty-ant v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cell_grid.rs:186:21
[INFO] [stdout]     |
[INFO] [stdout] 186 |                     &mut self.change_cell_state(idx, Dead);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cell_grid.rs:191:25
[INFO] [stdout]     |
[INFO] [stdout] 191 |                         &mut self.change_cell_state(idx, Alive);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cell_grid.rs:186:21
[INFO] [stdout]     |
[INFO] [stdout] 186 |                     &mut self.change_cell_state(idx, Dead);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cell_grid.rs:191:25
[INFO] [stdout]     |
[INFO] [stdout] 191 |                         &mut self.change_cell_state(idx, Alive);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.26s
[INFO] running `Command { std: "docker" "inspect" "b437ea8c94a7e128f70e90f8654b5fee37c55ac7dd544d5022d028b00803677a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b437ea8c94a7e128f70e90f8654b5fee37c55ac7dd544d5022d028b00803677a", kill_on_drop: false }`
[INFO] [stdout] b437ea8c94a7e128f70e90f8654b5fee37c55ac7dd544d5022d028b00803677a