[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#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmxrr%2Frust-ant" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mxrr/rust-ant on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-15/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46a1d32790ccb6da9b692a2f1fca70bb9a961529c837a4e004312c699936444f
[INFO] running `Command { std: "docker" "start" "-a" "46a1d32790ccb6da9b692a2f1fca70bb9a961529c837a4e004312c699936444f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46a1d32790ccb6da9b692a2f1fca70bb9a961529c837a4e004312c699936444f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46a1d32790ccb6da9b692a2f1fca70bb9a961529c837a4e004312c699936444f", kill_on_drop: false }`
[INFO] [stdout] 46a1d32790ccb6da9b692a2f1fca70bb9a961529c837a4e004312c699936444f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0489daae18275895e8eaeb9d907bc01f8cd6dc206c89da2b693339cf4c6d566a
[INFO] running `Command { std: "docker" "start" "-a" "0489daae18275895e8eaeb9d907bc01f8cd6dc206c89da2b693339cf4c6d566a", kill_on_drop: false }`
[INFO] [stderr]    Compiling sfml-build v0.4.0
[INFO] [stderr]    Compiling libc v0.2.92
[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-graphics-sys v0.6.0
[INFO] [stderr]    Compiling csfml-audio-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: 2 warnings emitted
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.83s
[INFO] running `Command { std: "docker" "inspect" "0489daae18275895e8eaeb9d907bc01f8cd6dc206c89da2b693339cf4c6d566a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0489daae18275895e8eaeb9d907bc01f8cd6dc206c89da2b693339cf4c6d566a", kill_on_drop: false }`
[INFO] [stdout] 0489daae18275895e8eaeb9d907bc01f8cd6dc206c89da2b693339cf4c6d566a