Nov 01 11:01:26.025 INFO checking MindFlavor/bpb against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 11:01:26.025 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-3/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 01 11:01:26.280 INFO blam! 248556f2bc301163e5d8eb9d43d8bd5cc6ef5a712d6077e810310c02a9f911fd
Nov 01 11:01:26.286 INFO running `"docker" "start" "-a" "248556f2bc301163e5d8eb9d43d8bd5cc6ef5a712d6077e810310c02a9f911fd"`
Nov 01 11:01:26.882 INFO kablam! usermod: no changes
Nov 01 11:01:26.936 INFO kablam!     Checking bpb v0.1.1 (/source)
Nov 01 11:01:28.244 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 01 11:01:28.244 INFO kablam!   --> src/main.rs:62:9
Nov 01 11:01:28.244 INFO kablam!    |
Nov 01 11:01:28.244 INFO kablam! 62 | /         stc.fields
Nov 01 11:01:28.244 INFO kablam! 63 | |             .iter()
Nov 01 11:01:28.244 INFO kablam! 64 | |             .filter(|f| !f.optional)
Nov 01 11:01:28.244 INFO kablam! 65 | |             .map(|bt| abt.push(bt.builder_type.clone().unwrap()))
Nov 01 11:01:28.244 INFO kablam! 66 | |             .collect::<()>();
Nov 01 11:01:28.244 INFO kablam!    | |_____________________________^
Nov 01 11:01:28.244 INFO kablam!    |
Nov 01 11:01:28.244 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 01 11:01:28.244 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 01 11:01:28.244 INFO kablam! 
Nov 01 11:01:28.344 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 01 11:01:28.344 INFO kablam!   --> src/main.rs:62:9
Nov 01 11:01:28.344 INFO kablam!    |
Nov 01 11:01:28.344 INFO kablam! 62 | /         stc.fields
Nov 01 11:01:28.344 INFO kablam! 63 | |             .iter()
Nov 01 11:01:28.344 INFO kablam! 64 | |             .filter(|f| !f.optional)
Nov 01 11:01:28.344 INFO kablam! 65 | |             .map(|bt| abt.push(bt.builder_type.clone().unwrap()))
Nov 01 11:01:28.344 INFO kablam! 66 | |             .collect::<()>();
Nov 01 11:01:28.344 INFO kablam!    | |_____________________________^
Nov 01 11:01:28.344 INFO kablam!    |
Nov 01 11:01:28.344 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 01 11:01:28.344 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 01 11:01:28.344 INFO kablam! 
Nov 01 11:01:28.383 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
Nov 01 11:01:28.388 INFO kablam! su: No module specific data is present
Nov 01 11:01:28.924 INFO running `"docker" "rm" "-f" "248556f2bc301163e5d8eb9d43d8bd5cc6ef5a712d6077e810310c02a9f911fd"`
Nov 01 11:01:29.192 INFO blam! 248556f2bc301163e5d8eb9d43d8bd5cc6ef5a712d6077e810310c02a9f911fd