Nov 30 09:59:34.416 INFO checking LiteUnder/testing_rust against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 09:59:34.416 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Nov 30 09:59:34.598 INFO [stdout] 77c886c23aa5f55fd8e384a535e8a84cde1e7e077da2e12076f04ebfdb7c9aeb
Nov 30 09:59:34.599 INFO running `"docker" "start" "-a" "77c886c23aa5f55fd8e384a535e8a84cde1e7e077da2e12076f04ebfdb7c9aeb"`
Nov 30 09:59:35.154 INFO [stderr] usermod: no changes
Nov 30 09:59:35.199 INFO [stderr]     Checking testing_rust v0.1.0 (/source)
Nov 30 09:59:35.508 INFO [stderr] warning: unused variable: `x`
Nov 30 09:59:35.508 INFO [stderr]   --> src/main.rs:12:9
Nov 30 09:59:35.508 INFO [stderr]    |
Nov 30 09:59:35.508 INFO [stderr] 12 |     let x = Some(5);
Nov 30 09:59:35.508 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 30 09:59:35.508 INFO [stderr]    |
Nov 30 09:59:35.508 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 09:59:35.508 INFO [stderr] 
Nov 30 09:59:35.508 INFO [stderr] warning: unused variable: `y`
Nov 30 09:59:35.508 INFO [stderr]   --> src/main.rs:13:9
Nov 30 09:59:35.508 INFO [stderr]    |
Nov 30 09:59:35.508 INFO [stderr] 13 |     let y: Option<i8> = None;
Nov 30 09:59:35.508 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 30 09:59:35.508 INFO [stderr] 
Nov 30 09:59:35.602 INFO [stderr] warning: unused variable: `x`
Nov 30 09:59:35.603 INFO [stderr]   --> src/main.rs:12:9
Nov 30 09:59:35.603 INFO [stderr]    |
Nov 30 09:59:35.603 INFO [stderr] 12 |     let x = Some(5);
Nov 30 09:59:35.603 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 30 09:59:35.603 INFO [stderr]    |
Nov 30 09:59:35.603 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 09:59:35.603 INFO [stderr] 
Nov 30 09:59:35.603 INFO [stderr] warning: unused variable: `y`
Nov 30 09:59:35.603 INFO [stderr]   --> src/main.rs:13:9
Nov 30 09:59:35.603 INFO [stderr]    |
Nov 30 09:59:35.603 INFO [stderr] 13 |     let y: Option<i8> = None;
Nov 30 09:59:35.603 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 30 09:59:35.604 INFO [stderr] 
Nov 30 09:59:35.612 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
Nov 30 09:59:35.613 INFO [stderr] su: No module specific data is present
Nov 30 09:59:35.834 INFO running `"docker" "inspect" "77c886c23aa5f55fd8e384a535e8a84cde1e7e077da2e12076f04ebfdb7c9aeb"`
Nov 30 09:59:36.003 INFO running `"docker" "rm" "-f" "77c886c23aa5f55fd8e384a535e8a84cde1e7e077da2e12076f04ebfdb7c9aeb"`
Nov 30 09:59:36.170 INFO [stdout] 77c886c23aa5f55fd8e384a535e8a84cde1e7e077da2e12076f04ebfdb7c9aeb