Dec 17 22:52:47.930 INFO checking intrepion/example-x-rust-x-rustbyexample-com-x-std-option against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 22:52:47.930 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:52:48.109 INFO [stdout] d1f38f58f57ad6eae177f88c955497e27a252ac9eae6190802222011e664766e
Dec 17 22:52:48.111 INFO running `"docker" "start" "-a" "d1f38f58f57ad6eae177f88c955497e27a252ac9eae6190802222011e664766e"`
Dec 17 22:52:48.724 INFO [stderr]     Checking example-x-rust-x-rustbyexample-com-x-std-option v0.1.0 (/opt/crater/workdir)
Dec 17 22:52:48.892 INFO [stderr] warning: unused variable: `none`
Dec 17 22:52:48.892 INFO [stderr]   --> src/main.rs:28:9
Dec 17 22:52:48.892 INFO [stderr]    |
Dec 17 22:52:48.892 INFO [stderr] 28 |     let none: Option<i32> = None;
Dec 17 22:52:48.892 INFO [stderr]    |         ^^^^ help: consider using `_none` instead
Dec 17 22:52:48.892 INFO [stderr]    |
Dec 17 22:52:48.892 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 22:52:48.892 INFO [stderr] 
Dec 17 22:52:48.902 INFO [stderr] warning: unused variable: `none`
Dec 17 22:52:48.902 INFO [stderr]   --> src/main.rs:28:9
Dec 17 22:52:48.902 INFO [stderr]    |
Dec 17 22:52:48.902 INFO [stderr] 28 |     let none: Option<i32> = None;
Dec 17 22:52:48.902 INFO [stderr]    |         ^^^^ help: consider using `_none` instead
Dec 17 22:52:48.902 INFO [stderr]    |
Dec 17 22:52:48.902 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 22:52:48.902 INFO [stderr] 
Dec 17 22:52:48.933 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
Dec 17 22:52:49.166 INFO running `"docker" "inspect" "d1f38f58f57ad6eae177f88c955497e27a252ac9eae6190802222011e664766e"`
Dec 17 22:52:49.216 INFO running `"docker" "rm" "-f" "d1f38f58f57ad6eae177f88c955497e27a252ac9eae6190802222011e664766e"`
Dec 17 22:52:49.284 INFO [stdout] d1f38f58f57ad6eae177f88c955497e27a252ac9eae6190802222011e664766e