[INFO] cloning repository https://github.com/AliceLanniste/rs_2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AliceLanniste/rs_2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAliceLanniste%2Frs_2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAliceLanniste%2Frs_2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 370286e72d573baf47788c3cc93ec45018c9ff45
[INFO] checking AliceLanniste/rs_2048 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAliceLanniste%2Frs_2048" "/workspace/builds/worker-104/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-104/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AliceLanniste/rs_2048 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AliceLanniste/rs_2048
[INFO] finished tweaking git repo https://github.com/AliceLanniste/rs_2048
[INFO] tweaked toml for git repo https://github.com/AliceLanniste/rs_2048 written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] crate git repo https://github.com/AliceLanniste/rs_2048 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.7.2
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.6
[INFO] [stderr]   Downloaded libc v0.2.65
[INFO] [stderr]   Downloaded getrandom v0.1.13
[INFO] [stderr]   Downloaded c2-chacha v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfb034234e56da6de37fe9dbc9440e5f993fce6c6567642a25bff8310e956e9d
[INFO] running `Command { std: "docker" "start" "-a" "cfb034234e56da6de37fe9dbc9440e5f993fce6c6567642a25bff8310e956e9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfb034234e56da6de37fe9dbc9440e5f993fce6c6567642a25bff8310e956e9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfb034234e56da6de37fe9dbc9440e5f993fce6c6567642a25bff8310e956e9d", kill_on_drop: false }`
[INFO] [stdout] cfb034234e56da6de37fe9dbc9440e5f993fce6c6567642a25bff8310e956e9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca5dd2c0bbacef300bc3a6a0a4ca8347f5d12919e45062a4402e04c1a37531ff
[INFO] running `Command { std: "docker" "start" "-a" "ca5dd2c0bbacef300bc3a6a0a4ca8347f5d12919e45062a4402e04c1a37531ff", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking rs_2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: module `gameBoard` should have a snake case name
[INFO] [stdout]  --> src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub mod gameBoard;
[INFO] [stdout]   |         ^^^^^^^^^ help: convert the identifier to snake case: `game_board`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `gameBoard` should have a snake case name
[INFO] [stdout]  --> src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub mod gameBoard;
[INFO] [stdout]   |         ^^^^^^^^^ help: convert the identifier to snake case: `game_board`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` 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 [unoptimized + debuginfo] target(s) in 17.52s
[INFO] running `Command { std: "docker" "inspect" "ca5dd2c0bbacef300bc3a6a0a4ca8347f5d12919e45062a4402e04c1a37531ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca5dd2c0bbacef300bc3a6a0a4ca8347f5d12919e45062a4402e04c1a37531ff", kill_on_drop: false }`
[INFO] [stdout] ca5dd2c0bbacef300bc3a6a0a4ca8347f5d12919e45062a4402e04c1a37531ff