Aug 02 13:46:53.955 INFO checking bson-0.12.2 against 1.27.2+tmplazy for lazy_static-1
Aug 02 13:46:53.955 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:46:53.955 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:46:53.955 INFO running `"docker" "create" "-v" "/tmp/crater.LGGVRNTVxdus:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2+tmplazy:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 13:46:54.171 INFO blam! 28160202ce33515a42e18e6edec5344d9a2056fd1e05de05b207d4a5666997d4
Aug 02 13:46:54.173 INFO running `"docker" "start" "-a" "28160202ce33515a42e18e6edec5344d9a2056fd1e05de05b207d4a5666997d4"`
Aug 02 13:46:55.227 INFO kablam!     Checking bson v0.12.2 (file:///source)
Aug 02 13:47:02.847 INFO kablam! warning: unused variable: `tmp`
Aug 02 13:47:02.847 INFO kablam!  --> examples/test.rs:7:9
Aug 02 13:47:02.847 INFO kablam!   |
Aug 02 13:47:02.847 INFO kablam! 7 |     let tmp = bson::to_bson(&map).unwrap();
Aug 02 13:47:02.847 INFO kablam!   |         ^^^ help: consider using `_tmp` instead
Aug 02 13:47:02.869 INFO kablam!   |
Aug 02 13:47:02.869 INFO kablam!   = note: #[warn(unused_variables)] on by default
Aug 02 13:47:02.869 INFO kablam! 
Aug 02 13:47:05.310 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 10.19s
Aug 02 13:47:05.336 INFO kablam! su: No module specific data is present
Aug 02 13:47:05.926 INFO running `"docker" "rm" "-f" "28160202ce33515a42e18e6edec5344d9a2056fd1e05de05b207d4a5666997d4"`
Aug 02 13:47:06.119 INFO blam! 28160202ce33515a42e18e6edec5344d9a2056fd1e05de05b207d4a5666997d4