Nov 28 12:10:14.845 INFO checking MindFlavor/bpb against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 12:10:14.845 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 28 12:10:15.157 INFO [stdout] a02e6e269ac704644d3a26c869a4003e18a6ee13b19bf921f3e493f9250b418d
Nov 28 12:10:15.164 INFO running `"docker" "start" "-a" "a02e6e269ac704644d3a26c869a4003e18a6ee13b19bf921f3e493f9250b418d"`
Nov 28 12:10:15.815 INFO [stderr] usermod: no changes
Nov 28 12:10:15.909 INFO [stderr]     Checking bpb v0.1.1 (/source)
Nov 28 12:10:17.071 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 28 12:10:17.071 INFO [stderr]   --> src/main.rs:62:9
Nov 28 12:10:17.071 INFO [stderr]    |
Nov 28 12:10:17.071 INFO [stderr] 62 | /         stc.fields
Nov 28 12:10:17.071 INFO [stderr] 63 | |             .iter()
Nov 28 12:10:17.071 INFO [stderr] 64 | |             .filter(|f| !f.optional)
Nov 28 12:10:17.071 INFO [stderr] 65 | |             .map(|bt| abt.push(bt.builder_type.clone().unwrap()))
Nov 28 12:10:17.071 INFO [stderr] 66 | |             .collect::<()>();
Nov 28 12:10:17.071 INFO [stderr]    | |_____________________________^
Nov 28 12:10:17.071 INFO [stderr]    |
Nov 28 12:10:17.071 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 12:10:17.071 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 28 12:10:17.071 INFO [stderr] 
Nov 28 12:10:17.221 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 28 12:10:17.221 INFO [stderr]   --> src/main.rs:62:9
Nov 28 12:10:17.221 INFO [stderr]    |
Nov 28 12:10:17.221 INFO [stderr] 62 | /         stc.fields
Nov 28 12:10:17.221 INFO [stderr] 63 | |             .iter()
Nov 28 12:10:17.221 INFO [stderr] 64 | |             .filter(|f| !f.optional)
Nov 28 12:10:17.221 INFO [stderr] 65 | |             .map(|bt| abt.push(bt.builder_type.clone().unwrap()))
Nov 28 12:10:17.221 INFO [stderr] 66 | |             .collect::<()>();
Nov 28 12:10:17.221 INFO [stderr]    | |_____________________________^
Nov 28 12:10:17.221 INFO [stderr]    |
Nov 28 12:10:17.221 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 12:10:17.221 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 28 12:10:17.221 INFO [stderr] 
Nov 28 12:10:17.241 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
Nov 28 12:10:17.249 INFO [stderr] su: No module specific data is present
Nov 28 12:10:17.766 INFO running `"docker" "inspect" "a02e6e269ac704644d3a26c869a4003e18a6ee13b19bf921f3e493f9250b418d"`
Nov 28 12:10:17.911 INFO running `"docker" "rm" "-f" "a02e6e269ac704644d3a26c869a4003e18a6ee13b19bf921f3e493f9250b418d"`
Nov 28 12:10:18.188 INFO [stdout] a02e6e269ac704644d3a26c869a4003e18a6ee13b19bf921f3e493f9250b418d