Nov 29 04:11:27.656 INFO checking binary-tree-0.2.0 against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 29 04:11:27.656 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 04:11:27.871 INFO [stdout] abaa9c2f87bcdc0aa2b9f963dab0b7faef9d199a3667f55b31686686113576db
Nov 29 04:11:27.878 INFO running `"docker" "start" "-a" "abaa9c2f87bcdc0aa2b9f963dab0b7faef9d199a3667f55b31686686113576db"`
Nov 29 04:11:29.169 INFO [stderr] usermod: no changes
Nov 29 04:11:29.336 INFO [stderr]     Checking binary-tree v0.2.0 (/source)
Nov 29 04:11:32.841 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 29 04:11:32.841 INFO [stderr]   --> benches/from_iter.rs:16:9
Nov 29 04:11:32.841 INFO [stderr]    |
Nov 29 04:11:32.841 INFO [stderr] 16 |         (0..TOTAL).collect::<CountTree<_>>();
Nov 29 04:11:32.841 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:11:32.841 INFO [stderr]    |
Nov 29 04:11:32.841 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 04:11:32.841 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 29 04:11:32.841 INFO [stderr] 
Nov 29 04:11:32.841 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 29 04:11:32.842 INFO [stderr]   --> benches/from_iter.rs:23:9
Nov 29 04:11:32.849 INFO [stderr]    |
Nov 29 04:11:32.849 INFO [stderr] 23 |         (0..TOTAL).collect::<LinkedList<_>>();
Nov 29 04:11:32.849 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:11:32.852 INFO [stderr]    |
Nov 29 04:11:32.852 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 29 04:11:32.852 INFO [stderr] 
Nov 29 04:11:32.853 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 29 04:11:32.853 INFO [stderr]   --> benches/from_iter.rs:30:9
Nov 29 04:11:32.853 INFO [stderr]    |
Nov 29 04:11:32.853 INFO [stderr] 30 |         (0..TOTAL).collect::<Vec<_>>();
Nov 29 04:11:32.853 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:11:32.853 INFO [stderr]    |
Nov 29 04:11:32.853 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 29 04:11:32.853 INFO [stderr] 
Nov 29 04:11:33.074 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.87s
Nov 29 04:11:33.079 INFO [stderr] su: No module specific data is present
Nov 29 04:11:33.408 INFO running `"docker" "inspect" "abaa9c2f87bcdc0aa2b9f963dab0b7faef9d199a3667f55b31686686113576db"`
Nov 29 04:11:33.546 INFO running `"docker" "rm" "-f" "abaa9c2f87bcdc0aa2b9f963dab0b7faef9d199a3667f55b31686686113576db"`
Nov 29 04:11:33.672 INFO [stdout] abaa9c2f87bcdc0aa2b9f963dab0b7faef9d199a3667f55b31686686113576db