Dec 11 16:58:05.591 INFO checking intrepion/example-x-rust-x-rustbyexample-com-x-expression against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:58:05.591 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 16:58:05.777 INFO [stdout] 6bb2f69d3227ccc22be48af9be7ea1e3a014f4b183084470f2ac3867bc9638e6
Dec 11 16:58:05.782 INFO running `"docker" "start" "-a" "6bb2f69d3227ccc22be48af9be7ea1e3a014f4b183084470f2ac3867bc9638e6"`
Dec 11 16:58:06.160 INFO [stderr] usermod: no changes
Dec 11 16:58:06.198 INFO [stderr]     Checking example-x-rust-x-rustbyexample-com-x-expression v0.1.0 (/source)
Dec 11 16:58:06.460 INFO [stderr] warning: unused arithmetic operation that must be used
Dec 11 16:58:06.460 INFO [stderr]   --> src/main.rs:14:9
Dec 11 16:58:06.460 INFO [stderr]    |
Dec 11 16:58:06.460 INFO [stderr] 14 |         2 * x;
Dec 11 16:58:06.460 INFO [stderr]    |         ^^^^^
Dec 11 16:58:06.460 INFO [stderr]    |
Dec 11 16:58:06.460 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 16:58:06.460 INFO [stderr] 
Dec 11 16:58:06.471 INFO [stderr] warning: unused arithmetic operation that must be used
Dec 11 16:58:06.471 INFO [stderr]   --> src/main.rs:14:9
Dec 11 16:58:06.471 INFO [stderr]    |
Dec 11 16:58:06.471 INFO [stderr] 14 |         2 * x;
Dec 11 16:58:06.471 INFO [stderr]    |         ^^^^^
Dec 11 16:58:06.471 INFO [stderr]    |
Dec 11 16:58:06.472 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 16:58:06.472 INFO [stderr] 
Dec 11 16:58:06.483 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
Dec 11 16:58:06.486 INFO [stderr] su: No module specific data is present
Dec 11 16:58:06.705 INFO running `"docker" "inspect" "6bb2f69d3227ccc22be48af9be7ea1e3a014f4b183084470f2ac3867bc9638e6"`
Dec 11 16:58:06.788 INFO running `"docker" "rm" "-f" "6bb2f69d3227ccc22be48af9be7ea1e3a014f4b183084470f2ac3867bc9638e6"`
Dec 11 16:58:06.870 INFO [stdout] 6bb2f69d3227ccc22be48af9be7ea1e3a014f4b183084470f2ac3867bc9638e6