Sep 01 09:16:25.876 INFO checking bson-0.10.0 against try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b for pr-53578
Sep 01 09:16:25.876 INFO running: cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets
Sep 01 09:16:25.876 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53578/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-0/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/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 +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 09:16:26.082 INFO blam! f320e825325908033a6a79a278fdb3747ee939a7cf7f5cd3bd53e3a36ef6c61f
Sep 01 09:16:26.084 INFO running `"docker" "start" "-a" "f320e825325908033a6a79a278fdb3747ee939a7cf7f5cd3bd53e3a36ef6c61f"`
Sep 01 09:16:26.840 INFO kablam!     Checking bson v0.10.0 (file:///source)
Sep 01 09:16:35.289 INFO kablam! warning: unused variable: `tmp`
Sep 01 09:16:35.289 INFO kablam!  --> examples/test.rs:7:9
Sep 01 09:16:35.289 INFO kablam!   |
Sep 01 09:16:35.289 INFO kablam! 7 |     let tmp = bson::to_bson(&map).unwrap(); 
Sep 01 09:16:35.289 INFO kablam!   |         ^^^ help: consider using `_tmp` instead
Sep 01 09:16:35.294 INFO kablam!   |
Sep 01 09:16:35.295 INFO kablam!   = note: #[warn(unused_variables)] on by default
Sep 01 09:16:35.295 INFO kablam! 
Sep 01 09:16:37.467 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 10.74s
Sep 01 09:16:37.481 INFO kablam! su: No module specific data is present
Sep 01 09:16:37.991 INFO running `"docker" "rm" "-f" "f320e825325908033a6a79a278fdb3747ee939a7cf7f5cd3bd53e3a36ef6c61f"`
Sep 01 09:16:38.104 INFO blam! f320e825325908033a6a79a278fdb3747ee939a7cf7f5cd3bd53e3a36ef6c61f