Dec 05 12:31:13.104 INFO checking grabbag-0.1.2 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 12:31:13.104 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 05 12:31:13.544 INFO [stdout] 6b40607af7dd0e05119dac8ab1ad987243deeaa9111d43f4a05ef433edc0ed1d
Dec 05 12:31:13.545 INFO running `"docker" "start" "-a" "6b40607af7dd0e05119dac8ab1ad987243deeaa9111d43f4a05ef433edc0ed1d"`
Dec 05 12:31:14.971 INFO [stderr] usermod: no changes
Dec 05 12:31:15.063 INFO [stderr]    Compiling grabbag_macros v0.1.2
Dec 05 12:31:16.655 INFO [stderr]     Checking grabbag v0.1.2 (/source)
Dec 05 12:31:17.917 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 12:31:17.917 INFO [stderr]   --> src/iter/skip_exactly.rs:57:37
Dec 05 12:31:17.917 INFO [stderr]    |
Dec 05 12:31:17.917 INFO [stderr] 57 |     let r = thread::spawn(move || { v.into_iter().skip_exactly(3).collect::<Vec<_>>(); }).join();
Dec 05 12:31:17.917 INFO [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 12:31:17.917 INFO [stderr]    |
Dec 05 12:31:17.917 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 12:31:17.917 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 12:31:17.917 INFO [stderr] 
Dec 05 12:31:17.917 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 12:31:17.917 INFO [stderr]   --> src/iter/take_exactly.rs:90:37
Dec 05 12:31:17.917 INFO [stderr]    |
Dec 05 12:31:17.917 INFO [stderr] 90 |     let r = thread::spawn(move || { v.into_iter().take_exactly(3).collect::<Vec<_>>(); }).join();
Dec 05 12:31:17.917 INFO [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 12:31:17.917 INFO [stderr]    |
Dec 05 12:31:17.917 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 12:31:17.917 INFO [stderr] 
Dec 05 12:31:17.934 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.94s
Dec 05 12:31:17.937 INFO [stderr] su: No module specific data is present
Dec 05 12:31:18.301 INFO running `"docker" "inspect" "6b40607af7dd0e05119dac8ab1ad987243deeaa9111d43f4a05ef433edc0ed1d"`
Dec 05 12:31:18.481 INFO running `"docker" "rm" "-f" "6b40607af7dd0e05119dac8ab1ad987243deeaa9111d43f4a05ef433edc0ed1d"`
Dec 05 12:31:18.663 INFO [stdout] 6b40607af7dd0e05119dac8ab1ad987243deeaa9111d43f4a05ef433edc0ed1d