[INFO] updating cached repository https://github.com/rabbitXIII/wasm_snake
[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] 792cbbf65d134d99bb608dfd10bf0e15f0b8e8e3
[INFO] checking rabbitXIII/wasm_snake against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrabbitXIII%2Fwasm_snake" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rabbitXIII/wasm_snake on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/rabbitXIII/wasm_snake
[INFO] finished tweaking git repo https://github.com/rabbitXIII/wasm_snake
[INFO] tweaked toml for git repo https://github.com/rabbitXIII/wasm_snake written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/rabbitXIII/wasm_snake already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "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] ab340172a7d0e67debef54cefca0c08bf1583af37a4bf02f69f87bbf157a91e2
[INFO] running `"docker" "start" "-a" "ab340172a7d0e67debef54cefca0c08bf1583af37a4bf02f69f87bbf157a91e2"`
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.5
[INFO] [stderr]    Compiling base-x v0.2.6
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling stdweb v0.4.20
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling stdweb-derive v0.5.3
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.9
[INFO] [stderr]     Checking wasm_snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `length`
[INFO] [stderr]    --> src/snake.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |     let length = input_queue.len() as i32;
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_length`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BLUE`
[INFO] [stderr]   --> src/snake.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   BLUE,
[INFO] [stderr]    |   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RED`
[INFO] [stderr]   --> src/snake.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   RED,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `length`
[INFO] [stderr]    --> src/snake.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |     let length = input_queue.len() as i32;
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_length`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BLUE`
[INFO] [stderr]   --> src/snake.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   BLUE,
[INFO] [stderr]    |   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RED`
[INFO] [stderr]   --> src/snake.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   RED,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `"docker" "inspect" "ab340172a7d0e67debef54cefca0c08bf1583af37a4bf02f69f87bbf157a91e2"`
[INFO] running `"docker" "rm" "-f" "ab340172a7d0e67debef54cefca0c08bf1583af37a4bf02f69f87bbf157a91e2"`
[INFO] [stdout] ab340172a7d0e67debef54cefca0c08bf1583af37a4bf02f69f87bbf157a91e2