Dec 11 16:57:27.323 INFO checking intrepion/example-x-rust-x-rustbyexample-com-x-std-option against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:57:27.323 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 16:57:27.545 INFO [stdout] 2f69c45a5315f38e4eaf816150fe3f745716dfc5ac1131c998a1f26bbf89b384
Dec 11 16:57:27.547 INFO running `"docker" "start" "-a" "2f69c45a5315f38e4eaf816150fe3f745716dfc5ac1131c998a1f26bbf89b384"`
Dec 11 16:57:27.866 INFO [stderr] usermod: no changes
Dec 11 16:57:27.885 INFO [stderr]     Checking example-x-rust-x-rustbyexample-com-x-std-option v0.1.0 (/source)
Dec 11 16:57:28.229 INFO [stderr] warning: unused variable: `none`
Dec 11 16:57:28.229 INFO [stderr]   --> src/main.rs:28:9
Dec 11 16:57:28.229 INFO [stderr]    |
Dec 11 16:57:28.229 INFO [stderr] 28 |     let none: Option<i32> = None;
Dec 11 16:57:28.229 INFO [stderr]    |         ^^^^ help: consider using `_none` instead
Dec 11 16:57:28.229 INFO [stderr]    |
Dec 11 16:57:28.229 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 16:57:28.229 INFO [stderr] 
Dec 11 16:57:28.259 INFO [stderr] warning: unused variable: `none`
Dec 11 16:57:28.259 INFO [stderr]   --> src/main.rs:28:9
Dec 11 16:57:28.259 INFO [stderr]    |
Dec 11 16:57:28.259 INFO [stderr] 28 |     let none: Option<i32> = None;
Dec 11 16:57:28.259 INFO [stderr]    |         ^^^^ help: consider using `_none` instead
Dec 11 16:57:28.259 INFO [stderr]    |
Dec 11 16:57:28.259 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 16:57:28.259 INFO [stderr] 
Dec 11 16:57:28.271 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
Dec 11 16:57:28.273 INFO [stderr] su: No module specific data is present
Dec 11 16:57:28.520 INFO running `"docker" "inspect" "2f69c45a5315f38e4eaf816150fe3f745716dfc5ac1131c998a1f26bbf89b384"`
Dec 11 16:57:28.693 INFO running `"docker" "rm" "-f" "2f69c45a5315f38e4eaf816150fe3f745716dfc5ac1131c998a1f26bbf89b384"`
Dec 11 16:57:28.756 INFO [stdout] 2f69c45a5315f38e4eaf816150fe3f745716dfc5ac1131c998a1f26bbf89b384