Sep 02 19:21:52.552 INFO checking bson-0.13.0 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 19:21:52.553 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 19:21:52.553 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/try#952c7dbfa2628309f557b367929ffc17af20b332:/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 +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 19:21:52.722 INFO blam! 861479c6ad7764f810e76cb52edd725e285dc76dbccd11805fbd4caf99bba41b
Sep 02 19:21:52.725 INFO running `"docker" "start" "-a" "861479c6ad7764f810e76cb52edd725e285dc76dbccd11805fbd4caf99bba41b"`
Sep 02 19:21:53.359 INFO kablam!     Checking bson v0.13.0 (file:///source)
Sep 02 19:22:02.808 INFO kablam! warning: unused variable: `tmp`
Sep 02 19:22:02.808 INFO kablam!  --> examples/test.rs:7:9
Sep 02 19:22:02.808 INFO kablam!   |
Sep 02 19:22:02.808 INFO kablam! 7 |     let tmp = bson::to_bson(&map).unwrap();
Sep 02 19:22:02.808 INFO kablam!   |         ^^^ help: consider using `_tmp` instead
Sep 02 19:22:02.808 INFO kablam!   |
Sep 02 19:22:02.808 INFO kablam!   = note: #[warn(unused_variables)] on by default
Sep 02 19:22:02.808 INFO kablam! 
Sep 02 19:22:05.229 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 11.95s
Sep 02 19:22:05.249 INFO kablam! su: No module specific data is present
Sep 02 19:22:05.728 INFO running `"docker" "rm" "-f" "861479c6ad7764f810e76cb52edd725e285dc76dbccd11805fbd4caf99bba41b"`
Sep 02 19:22:05.837 INFO blam! 861479c6ad7764f810e76cb52edd725e285dc76dbccd11805fbd4caf99bba41b