Oct 28 00:31:13.820 INFO checking bson-0.13.0 against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 28 00:31:13.821 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-7/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +19f01b935b91481fd445b16b533d2f87661bf12e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 28 00:31:14.203 INFO blam! 8a380f58b580f4ce807732c1c01941af5224ab990fe3648d71ed72108f2e373e
Oct 28 00:31:14.207 INFO running `"docker" "start" "-a" "8a380f58b580f4ce807732c1c01941af5224ab990fe3648d71ed72108f2e373e"`
Oct 28 00:31:14.771 INFO kablam! usermod: no changes
Oct 28 00:31:14.903 INFO kablam!     Checking bson v0.13.0 (/source)
Oct 28 00:31:21.428 INFO kablam! warning: unused variable: `tmp`
Oct 28 00:31:21.428 INFO kablam!  --> examples/test.rs:7:9
Oct 28 00:31:21.428 INFO kablam!   |
Oct 28 00:31:21.428 INFO kablam! 7 |     let tmp = bson::to_bson(&map).unwrap();
Oct 28 00:31:21.428 INFO kablam!   |         ^^^ help: consider using `_tmp` instead
Oct 28 00:31:21.428 INFO kablam!   |
Oct 28 00:31:21.428 INFO kablam!   = note: #[warn(unused_variables)] on by default
Oct 28 00:31:21.428 INFO kablam! 
Oct 28 00:31:23.452 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.66s
Oct 28 00:31:23.464 INFO kablam! su: No module specific data is present
Oct 28 00:31:24.078 INFO running `"docker" "rm" "-f" "8a380f58b580f4ce807732c1c01941af5224ab990fe3648d71ed72108f2e373e"`
Oct 28 00:31:24.234 INFO blam! 8a380f58b580f4ce807732c1c01941af5224ab990fe3648d71ed72108f2e373e