[INFO] cloning repository https://github.com/mattiadg/r_CGoF
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattiadg/r_CGoF" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattiadg%2Fr_CGoF", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattiadg%2Fr_CGoF'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d02f60c96febf1eab5755b8f0af2ce9848a60810
[INFO] checking mattiadg/r_CGoF against master#c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c for pr-123737
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattiadg%2Fr_CGoF" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattiadg/r_CGoF on toolchain c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattiadg/r_CGoF
[INFO] finished tweaking git repo https://github.com/mattiadg/r_CGoF
[INFO] tweaked toml for git repo https://github.com/mattiadg/r_CGoF written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mattiadg/r_CGoF 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" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded piston v0.52.1
[INFO] [stderr]   Downloaded piston2d-graphics v0.39.0
[INFO] [stderr]   Downloaded piston_window v0.117.0
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.52.0
[INFO] [stderr]   Downloaded piston2d-gfx_graphics v0.72.0
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.68.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00cc15532b46244aa058c3275a25851b88bfc005e6e43a1ce99243d52f306541
[INFO] running `Command { std: "docker" "start" "-a" "00cc15532b46244aa058c3275a25851b88bfc005e6e43a1ce99243d52f306541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00cc15532b46244aa058c3275a25851b88bfc005e6e43a1ce99243d52f306541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00cc15532b46244aa058c3275a25851b88bfc005e6e43a1ce99243d52f306541", kill_on_drop: false }`
[INFO] [stdout] 00cc15532b46244aa058c3275a25851b88bfc005e6e43a1ce99243d52f306541
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 593fe07684ca60a0cbb75d7c56b75e2c5ba93461f2e8107b3e05b293fc99ebdd
[INFO] running `Command { std: "docker" "start" "-a" "593fe07684ca60a0cbb75d7c56b75e2c5ba93461f2e8107b3e05b293fc99ebdd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking piston2d-graphics v0.39.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
[INFO] [stderr]     Checking piston-gfx_texture v0.41.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.72.0
[INFO] [stderr]     Checking pistoncore-input v1.0.1
[INFO] [stderr]     Checking pistoncore-window v0.47.1
[INFO] [stderr]     Checking pistoncore-event_loop v0.52.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.68.2
[INFO] [stderr]     Checking piston v0.52.1
[INFO] [stderr]     Checking piston_window v0.117.0
[INFO] [stderr]     Checking game_of_life v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Clone` is imported redundantly
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::clone::Clone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Clone` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Clone` is imported redundantly
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::clone::Clone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Clone` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 15.12s
[INFO] running `Command { std: "docker" "inspect" "593fe07684ca60a0cbb75d7c56b75e2c5ba93461f2e8107b3e05b293fc99ebdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "593fe07684ca60a0cbb75d7c56b75e2c5ba93461f2e8107b3e05b293fc99ebdd", kill_on_drop: false }`
[INFO] [stdout] 593fe07684ca60a0cbb75d7c56b75e2c5ba93461f2e8107b3e05b293fc99ebdd