Sep 04 22:42:32.738 INFO checking bson-0.13.0 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 04 22:42:32.738 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 04 22:42:32.738 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-2/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/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 +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 22:42:32.909 INFO blam! 0e606ad7cd051f47e58f8a130c0409272f2bfc81c8e2096c70ab74e0cd0b1c44
Sep 04 22:42:32.911 INFO running `"docker" "start" "-a" "0e606ad7cd051f47e58f8a130c0409272f2bfc81c8e2096c70ab74e0cd0b1c44"`
Sep 04 22:42:33.628 INFO kablam!     Checking bson v0.13.0 (file:///source)
Sep 04 22:42:40.494 INFO kablam! warning: unused variable: `tmp`
Sep 04 22:42:40.494 INFO kablam!  --> examples/test.rs:7:9
Sep 04 22:42:40.494 INFO kablam!   |
Sep 04 22:42:40.494 INFO kablam! 7 |     let tmp = bson::to_bson(&map).unwrap();
Sep 04 22:42:40.494 INFO kablam!   |         ^^^ help: consider using `_tmp` instead
Sep 04 22:42:40.494 INFO kablam!   |
Sep 04 22:42:40.495 INFO kablam!   = note: #[warn(unused_variables)] on by default
Sep 04 22:42:40.495 INFO kablam! 
Sep 04 22:42:42.831 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.29s
Sep 04 22:42:42.850 INFO kablam! su: No module specific data is present
Sep 04 22:42:43.351 INFO running `"docker" "rm" "-f" "0e606ad7cd051f47e58f8a130c0409272f2bfc81c8e2096c70ab74e0cd0b1c44"`
Sep 04 22:42:43.513 INFO blam! 0e606ad7cd051f47e58f8a130c0409272f2bfc81c8e2096c70ab74e0cd0b1c44