[INFO] updating cached repository https://github.com/damnever/game-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 90424751262bd0711735480dcad4300838d4089e
[INFO] checking damnever/game-rs against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdamnever%2Fgame-rs" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/damnever/game-rs on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/damnever/game-rs
[INFO] finished tweaking git repo https://github.com/damnever/game-rs
[INFO] tweaked toml for git repo https://github.com/damnever/game-rs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/damnever/game-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 33e043341ab1f9c8a7a36a027eb3338dcb7ffb3a69cc2e1780953d4eb4dfeeff
[INFO] running `"docker" "start" "-a" "33e043341ab1f9c8a7a36a027eb3338dcb7ffb3a69cc2e1780953d4eb4dfeeff"`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking game-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: value assigned to `moved` is never read
[INFO] [stderr]    --> src/2048/main.rs:101:17
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let mut moved = false;
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `moved` is never read
[INFO] [stderr]    --> src/2048/main.rs:101:17
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let mut moved = false;
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.54s
[INFO] running `"docker" "inspect" "33e043341ab1f9c8a7a36a027eb3338dcb7ffb3a69cc2e1780953d4eb4dfeeff"`
[INFO] running `"docker" "rm" "-f" "33e043341ab1f9c8a7a36a027eb3338dcb7ffb3a69cc2e1780953d4eb4dfeeff"`
[INFO] [stdout] 33e043341ab1f9c8a7a36a027eb3338dcb7ffb3a69cc2e1780953d4eb4dfeeff