Nov 29 00:15:05.502 INFO checking grabbag-0.1.2 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 29 00:15:05.502 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 29 00:15:05.890 INFO [stdout] b2cbebe8f0fc8b1f088b214bb196a3874a561ebc6d424f5fbf6fee693805703f
Nov 29 00:15:05.893 INFO running `"docker" "start" "-a" "b2cbebe8f0fc8b1f088b214bb196a3874a561ebc6d424f5fbf6fee693805703f"`
Nov 29 00:15:06.736 INFO [stderr] usermod: no changes
Nov 29 00:15:06.829 INFO [stderr]    Compiling grabbag_macros v0.1.2
Nov 29 00:15:08.668 INFO [stderr]     Checking grabbag v0.1.2 (/source)
Nov 29 00:15:10.122 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 29 00:15:10.122 INFO [stderr]   --> src/iter/skip_exactly.rs:57:37
Nov 29 00:15:10.123 INFO [stderr]    |
Nov 29 00:15:10.123 INFO [stderr] 57 |     let r = thread::spawn(move || { v.into_iter().skip_exactly(3).collect::<Vec<_>>(); }).join();
Nov 29 00:15:10.123 INFO [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 00:15:10.124 INFO [stderr]    |
Nov 29 00:15:10.124 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 00:15:10.124 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 29 00:15:10.124 INFO [stderr] 
Nov 29 00:15:10.125 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 29 00:15:10.125 INFO [stderr]   --> src/iter/take_exactly.rs:90:37
Nov 29 00:15:10.125 INFO [stderr]    |
Nov 29 00:15:10.125 INFO [stderr] 90 |     let r = thread::spawn(move || { v.into_iter().take_exactly(3).collect::<Vec<_>>(); }).join();
Nov 29 00:15:10.125 INFO [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 00:15:10.125 INFO [stderr]    |
Nov 29 00:15:10.125 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 29 00:15:10.125 INFO [stderr] 
Nov 29 00:15:10.132 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.37s
Nov 29 00:15:10.136 INFO [stderr] su: No module specific data is present
Nov 29 00:15:10.693 INFO running `"docker" "inspect" "b2cbebe8f0fc8b1f088b214bb196a3874a561ebc6d424f5fbf6fee693805703f"`
Nov 29 00:15:10.913 INFO running `"docker" "rm" "-f" "b2cbebe8f0fc8b1f088b214bb196a3874a561ebc6d424f5fbf6fee693805703f"`
Nov 29 00:15:11.120 INFO [stdout] b2cbebe8f0fc8b1f088b214bb196a3874a561ebc6d424f5fbf6fee693805703f