Dec 04 13:05:40.169 INFO checking northerner/taxicab against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 13:05:40.169 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 13:05:40.362 INFO [stdout] d8d2b904342a0d48a5c2fa2b10a85be25f7038d17572f2138e96edc51ce088f1
Dec 04 13:05:40.362 INFO running `"docker" "start" "-a" "d8d2b904342a0d48a5c2fa2b10a85be25f7038d17572f2138e96edc51ce088f1"`
Dec 04 13:05:40.939 INFO [stderr] usermod: no changes
Dec 04 13:05:40.975 INFO [stderr]     Checking taxicab v0.1.0 (/source)
Dec 04 13:05:41.212 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 13:05:41.212 INFO [stderr]  --> src/main.rs:8:5
Dec 04 13:05:41.212 INFO [stderr]   |
Dec 04 13:05:41.212 INFO [stderr] 8 |     file.read_to_string(&mut buffer);
Dec 04 13:05:41.212 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:05:41.212 INFO [stderr]   |
Dec 04 13:05:41.212 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 04 13:05:41.212 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 13:05:41.212 INFO [stderr] 
Dec 04 13:05:41.244 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 13:05:41.245 INFO [stderr]  --> src/main.rs:8:5
Dec 04 13:05:41.245 INFO [stderr]   |
Dec 04 13:05:41.245 INFO [stderr] 8 |     file.read_to_string(&mut buffer);
Dec 04 13:05:41.245 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:05:41.245 INFO [stderr]   |
Dec 04 13:05:41.245 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 04 13:05:41.245 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 13:05:41.245 INFO [stderr] 
Dec 04 13:05:41.253 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
Dec 04 13:05:41.254 INFO [stderr] su: No module specific data is present
Dec 04 13:05:41.536 INFO running `"docker" "inspect" "d8d2b904342a0d48a5c2fa2b10a85be25f7038d17572f2138e96edc51ce088f1"`
Dec 04 13:05:41.637 INFO running `"docker" "rm" "-f" "d8d2b904342a0d48a5c2fa2b10a85be25f7038d17572f2138e96edc51ce088f1"`
Dec 04 13:05:41.707 INFO [stdout] d8d2b904342a0d48a5c2fa2b10a85be25f7038d17572f2138e96edc51ce088f1