Dec 05 12:31:11.475 INFO checking grabbag-0.1.2 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 12:31:11.475 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 05 12:31:11.935 INFO [stdout] af0615a4b474958140a6b87f99d683d74394c9b90fb23c0f264202c4b8098e16
Dec 05 12:31:11.937 INFO running `"docker" "start" "-a" "af0615a4b474958140a6b87f99d683d74394c9b90fb23c0f264202c4b8098e16"`
Dec 05 12:31:12.943 INFO [stderr] usermod: no changes
Dec 05 12:31:12.995 INFO [stderr]    Compiling grabbag_macros v0.1.2
Dec 05 12:31:14.539 INFO [stderr]     Checking grabbag v0.1.2 (/source)
Dec 05 12:31:16.462 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 12:31:16.462 INFO [stderr]   --> src/iter/skip_exactly.rs:57:37
Dec 05 12:31:16.462 INFO [stderr]    |
Dec 05 12:31:16.462 INFO [stderr] 57 |     let r = thread::spawn(move || { v.into_iter().skip_exactly(3).collect::<Vec<_>>(); }).join();
Dec 05 12:31:16.462 INFO [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 12:31:16.462 INFO [stderr]    |
Dec 05 12:31:16.462 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 12:31:16.462 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 12:31:16.462 INFO [stderr] 
Dec 05 12:31:16.463 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 12:31:16.463 INFO [stderr]   --> src/iter/take_exactly.rs:90:37
Dec 05 12:31:16.463 INFO [stderr]    |
Dec 05 12:31:16.463 INFO [stderr] 90 |     let r = thread::spawn(move || { v.into_iter().take_exactly(3).collect::<Vec<_>>(); }).join();
Dec 05 12:31:16.463 INFO [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 12:31:16.463 INFO [stderr]    |
Dec 05 12:31:16.463 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 12:31:16.463 INFO [stderr] 
Dec 05 12:31:16.498 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.53s
Dec 05 12:31:16.502 INFO [stderr] su: No module specific data is present
Dec 05 12:31:17.232 INFO running `"docker" "inspect" "af0615a4b474958140a6b87f99d683d74394c9b90fb23c0f264202c4b8098e16"`
Dec 05 12:31:17.373 INFO running `"docker" "rm" "-f" "af0615a4b474958140a6b87f99d683d74394c9b90fb23c0f264202c4b8098e16"`
Dec 05 12:31:17.477 INFO [stdout] af0615a4b474958140a6b87f99d683d74394c9b90fb23c0f264202c4b8098e16