[INFO] cloning repository https://github.com/cplotter/conways_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cplotter/conways_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcplotter%2Fconways_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcplotter%2Fconways_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17fca2ba0eddeb1ca8914326aa07b5aa1deff89c
[INFO] checking cplotter/conways_in_rust against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcplotter%2Fconways_in_rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cplotter/conways_in_rust on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cplotter/conways_in_rust
[INFO] finished tweaking git repo https://github.com/cplotter/conways_in_rust
[INFO] tweaked toml for git repo https://github.com/cplotter/conways_in_rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/cplotter/conways_in_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded piston-gfx_texture v0.34.0
[INFO] [stderr]   Downloaded gleam v0.6.12
[INFO] [stderr]   Downloaded piston2d-gfx_graphics v0.52.0
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.48.0
[INFO] [stderr]   Downloaded piston_window v0.81.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a659420b17029ce9234abdcab2b7060691d18313e0205a3443f4ede8fba5afa1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a659420b17029ce9234abdcab2b7060691d18313e0205a3443f4ede8fba5afa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a659420b17029ce9234abdcab2b7060691d18313e0205a3443f4ede8fba5afa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a659420b17029ce9234abdcab2b7060691d18313e0205a3443f4ede8fba5afa1", kill_on_drop: false }`
[INFO] [stdout] a659420b17029ce9234abdcab2b7060691d18313e0205a3443f4ede8fba5afa1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6164127b7370e280231969ca8b0f217c49c111d5198819f0be276e68b0ac26cb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6164127b7370e280231969ca8b0f217c49c111d5198819f0be276e68b0ac26cb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling cc v1.0.30
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]     Checking shader_version v0.3.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking piston-texture v0.6.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]     Checking piston-viewport v0.3.0
[INFO] [stderr]     Checking vecmath v0.3.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
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[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling gl_generator v0.9.0
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[INFO] [stderr]     Checking rusttype v0.4.3
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[INFO] [stderr]     Checking num_cpus v1.10.0
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[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling glutin v0.18.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking smithay-client-toolkit v0.3.0
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[INFO] [stderr]    Compiling serde_derive v1.0.89
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[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking gfx_core v0.8.3
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.5
[INFO] [stderr]     Checking pistoncore-input v0.21.0
[INFO] [stderr]     Checking piston-gfx_texture v0.34.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.52.0
[INFO] [stderr]     Checking pistoncore-window v0.32.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.37.0
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[INFO] [stderr]     Checking piston v0.37.0
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[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `next_grid`
[INFO] [stdout]    --> src/main.rs:133:4
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn next_grid(dimension: (i32, i32), grid: &Vec<Vec<bool>>) -> Vec<Vec<bool>> {
[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: function is never used: `next_grid`
[INFO] [stdout]    --> src/main.rs:133:4
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn next_grid(dimension: (i32, i32), grid: &Vec<Vec<bool>>) -> Vec<Vec<bool>> {
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 36s
[INFO] running `Command { std: "docker" "inspect" "6164127b7370e280231969ca8b0f217c49c111d5198819f0be276e68b0ac26cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6164127b7370e280231969ca8b0f217c49c111d5198819f0be276e68b0ac26cb", kill_on_drop: false }`
[INFO] [stdout] 6164127b7370e280231969ca8b0f217c49c111d5198819f0be276e68b0ac26cb