Sep 02 01:49:43.371 INFO checking bson-0.13.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 02 01:49:43.371 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 02 01:49:43.371 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 01:49:43.525 INFO blam! 7bcd0c0c147da0019d01ac6a9f89587ec6049c40bb58fd6d7eec3a28b2715728
Sep 02 01:49:43.527 INFO running `"docker" "start" "-a" "7bcd0c0c147da0019d01ac6a9f89587ec6049c40bb58fd6d7eec3a28b2715728"`
Sep 02 01:49:44.405 INFO kablam!     Checking bson v0.13.0 (file:///source)
Sep 02 01:49:54.048 INFO kablam! warning: unused variable: `tmp`
Sep 02 01:49:54.048 INFO kablam!  --> examples/test.rs:7:9
Sep 02 01:49:54.048 INFO kablam!   |
Sep 02 01:49:54.048 INFO kablam! 7 |     let tmp = bson::to_bson(&map).unwrap();
Sep 02 01:49:54.048 INFO kablam!   |         ^^^ help: consider using `_tmp` instead
Sep 02 01:49:54.064 INFO kablam!   |
Sep 02 01:49:54.065 INFO kablam!   = note: #[warn(unused_variables)] on by default
Sep 02 01:49:54.065 INFO kablam! 
Sep 02 01:49:56.154 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 11.82s
Sep 02 01:49:56.163 INFO kablam! su: No module specific data is present
Sep 02 01:49:56.597 INFO running `"docker" "rm" "-f" "7bcd0c0c147da0019d01ac6a9f89587ec6049c40bb58fd6d7eec3a28b2715728"`
Sep 02 01:49:56.682 INFO blam! 7bcd0c0c147da0019d01ac6a9f89587ec6049c40bb58fd6d7eec3a28b2715728