Dec 19 15:41:17.945 INFO checking intrepion/example-x-rust-x-rustbyexample-com-x-std-option against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 15:41:17.945 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/intrepion/example-x-rust-x-rustbyexample-com-x-std-option:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:41:18.108 INFO [stdout] aadd7b65ea2c3126c43a1b08ab2c5316f025247b92b34198f44c0771eb32cca8
Dec 19 15:41:18.110 INFO running `"docker" "start" "-a" "aadd7b65ea2c3126c43a1b08ab2c5316f025247b92b34198f44c0771eb32cca8"`
Dec 19 15:41:18.620 INFO [stderr]     Checking example-x-rust-x-rustbyexample-com-x-std-option v0.1.0 (/opt/crater/workdir)
Dec 19 15:41:18.778 INFO [stderr] warning: unused variable: `none`
Dec 19 15:41:18.778 INFO [stderr]   --> src/main.rs:28:9
Dec 19 15:41:18.778 INFO [stderr]    |
Dec 19 15:41:18.778 INFO [stderr] 28 |     let none: Option<i32> = None;
Dec 19 15:41:18.778 INFO [stderr]    |         ^^^^ help: consider using `_none` instead
Dec 19 15:41:18.778 INFO [stderr]    |
Dec 19 15:41:18.778 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 15:41:18.778 INFO [stderr] 
Dec 19 15:41:18.781 INFO [stderr] warning: unused variable: `none`
Dec 19 15:41:18.781 INFO [stderr]   --> src/main.rs:28:9
Dec 19 15:41:18.781 INFO [stderr]    |
Dec 19 15:41:18.825 INFO [stderr] 28 |     let none: Option<i32> = None;
Dec 19 15:41:18.825 INFO [stderr]    |         ^^^^ help: consider using `_none` instead
Dec 19 15:41:18.825 INFO [stderr]    |
Dec 19 15:41:18.825 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 15:41:18.825 INFO [stderr] 
Dec 19 15:41:18.825 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
Dec 19 15:41:19.106 INFO running `"docker" "inspect" "aadd7b65ea2c3126c43a1b08ab2c5316f025247b92b34198f44c0771eb32cca8"`
Dec 19 15:41:19.216 INFO running `"docker" "rm" "-f" "aadd7b65ea2c3126c43a1b08ab2c5316f025247b92b34198f44c0771eb32cca8"`
Dec 19 15:41:19.289 INFO [stdout] aadd7b65ea2c3126c43a1b08ab2c5316f025247b92b34198f44c0771eb32cca8