Dec 04 13:05:40.034 INFO checking northerner/taxicab against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 13:05:40.034 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 04 13:05:40.227 INFO [stdout] a269576f746b23c2b64ab8c98033a83fd205212b519f8774321967dc3b9bdb53
Dec 04 13:05:40.233 INFO running `"docker" "start" "-a" "a269576f746b23c2b64ab8c98033a83fd205212b519f8774321967dc3b9bdb53"`
Dec 04 13:05:40.689 INFO [stderr] usermod: no changes
Dec 04 13:05:40.716 INFO [stderr]     Checking taxicab v0.1.0 (/source)
Dec 04 13:05:40.948 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 13:05:40.948 INFO [stderr]  --> src/main.rs:8:5
Dec 04 13:05:40.948 INFO [stderr]   |
Dec 04 13:05:40.948 INFO [stderr] 8 |     file.read_to_string(&mut buffer);
Dec 04 13:05:40.948 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:05:40.948 INFO [stderr]   |
Dec 04 13:05:40.948 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 04 13:05:40.948 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 13:05:40.948 INFO [stderr] 
Dec 04 13:05:41.034 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 13:05:41.034 INFO [stderr]  --> src/main.rs:8:5
Dec 04 13:05:41.034 INFO [stderr]   |
Dec 04 13:05:41.034 INFO [stderr] 8 |     file.read_to_string(&mut buffer);
Dec 04 13:05:41.034 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:05:41.034 INFO [stderr]   |
Dec 04 13:05:41.034 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 04 13:05:41.034 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 13:05:41.034 INFO [stderr] 
Dec 04 13:05:41.056 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
Dec 04 13:05:41.056 INFO [stderr] su: No module specific data is present
Dec 04 13:05:41.369 INFO running `"docker" "inspect" "a269576f746b23c2b64ab8c98033a83fd205212b519f8774321967dc3b9bdb53"`
Dec 04 13:05:41.452 INFO running `"docker" "rm" "-f" "a269576f746b23c2b64ab8c98033a83fd205212b519f8774321967dc3b9bdb53"`
Dec 04 13:05:41.557 INFO [stdout] a269576f746b23c2b64ab8c98033a83fd205212b519f8774321967dc3b9bdb53