[INFO] cloning repository https://github.com/ivanovaleksey/de-miner
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ivanovaleksey/de-miner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivanovaleksey%2Fde-miner"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivanovaleksey%2Fde-miner'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] df11aa329548f9a5b7b3fb71dbcdc1a8305710ca
[INFO] checking ivanovaleksey/de-miner against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivanovaleksey%2Fde-miner" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ivanovaleksey/de-miner on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ivanovaleksey/de-miner
[INFO] finished tweaking git repo https://github.com/ivanovaleksey/de-miner
[INFO] tweaked toml for git repo https://github.com/ivanovaleksey/de-miner written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ivanovaleksey/de-miner already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+74e80468347471779be6060d8d7d6d04e98e467f" "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] 28e5105f59495a1dd6dedac2fdac90f078221d2c63d33cb629e62c2934573a2f
[INFO] running `"docker" "start" "-a" "28e5105f59495a1dd6dedac2fdac90f078221d2c63d33cb629e62c2934573a2f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking itertools v0.7.7
[INFO] [stderr]     Checking de-miner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `Bomb`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Bomb,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Safe`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Safe,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bomb`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Bomb,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Safe`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Safe(usize),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse`
[INFO] [stderr]   --> src/main.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn parse(input: &str) -> Field {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `open`
[INFO] [stderr]   --> src/main.rs:60:8
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn open(&self) -> OpenField {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `adjacent`
[INFO] [stderr]    --> src/main.rs:129:8
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn adjacent(&self) -> Vec<Cell> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `"docker" "inspect" "28e5105f59495a1dd6dedac2fdac90f078221d2c63d33cb629e62c2934573a2f"`
[INFO] running `"docker" "rm" "-f" "28e5105f59495a1dd6dedac2fdac90f078221d2c63d33cb629e62c2934573a2f"`
[INFO] [stdout] 28e5105f59495a1dd6dedac2fdac90f078221d2c63d33cb629e62c2934573a2f