[INFO] cloning repository https://github.com/UnskilledWolf/particle-life-simulation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/UnskilledWolf/particle-life-simulation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnskilledWolf%2Fparticle-life-simulation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnskilledWolf%2Fparticle-life-simulation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a086cc71dac2377e7ad0c176ce16a61d4c4a628
[INFO] checking UnskilledWolf/particle-life-simulation against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnskilledWolf%2Fparticle-life-simulation" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/UnskilledWolf/particle-life-simulation on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/UnskilledWolf/particle-life-simulation
[INFO] finished tweaking git repo https://github.com/UnskilledWolf/particle-life-simulation
[INFO] tweaked toml for git repo https://github.com/UnskilledWolf/particle-life-simulation written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/UnskilledWolf/particle-life-simulation 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded version-compare v0.1.1
[INFO] [stderr]   Downloaded c_vec v2.0.0
[INFO] [stderr]   Downloaded sdl2 v0.35.2
[INFO] [stderr]   Downloaded sdl2-sys v0.35.2
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d16fe2712225e2dfeaf4cd76140be7820b00262ed4f7f78f5d45ad04c4fd71b
[INFO] running `Command { std: "docker" "start" "-a" "7d16fe2712225e2dfeaf4cd76140be7820b00262ed4f7f78f5d45ad04c4fd71b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d16fe2712225e2dfeaf4cd76140be7820b00262ed4f7f78f5d45ad04c4fd71b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d16fe2712225e2dfeaf4cd76140be7820b00262ed4f7f78f5d45ad04c4fd71b", kill_on_drop: false }`
[INFO] [stdout] 7d16fe2712225e2dfeaf4cd76140be7820b00262ed4f7f78f5d45ad04c4fd71b
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6147aa74bb41631c48a8267c61d2d0537c9cb944d55a24124696312bf69e682
[INFO] running `Command { std: "docker" "start" "-a" "e6147aa74bb41631c48a8267c61d2d0537c9cb944d55a24124696312bf69e682", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]     Checking c_vec v2.0.0
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking sdl-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `to` is never read
[INFO] [stdout]   --> src/particle.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct ParticleRule {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 38 |     pub from: ParticleColor,
[INFO] [stdout] 39 |     pub to: ParticleColor,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `to` is never read
[INFO] [stdout]   --> src/particle.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct ParticleRule {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 38 |     pub from: ParticleColor,
[INFO] [stdout] 39 |     pub to: ParticleColor,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "e6147aa74bb41631c48a8267c61d2d0537c9cb944d55a24124696312bf69e682", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6147aa74bb41631c48a8267c61d2d0537c9cb944d55a24124696312bf69e682", kill_on_drop: false }`
[INFO] [stdout] e6147aa74bb41631c48a8267c61d2d0537c9cb944d55a24124696312bf69e682