Nov 04 17:07:35.732 INFO checking stacktrace-0.2.1 against try#e740b9aa0b624fa39feb39613e76d15bdf57e594 for pr-55655
Nov 04 17:07:35.732 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-1/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55655/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/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 +e740b9aa0b624fa39feb39613e76d15bdf57e594-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"`
Nov 04 17:07:35.953 INFO blam! f83617a6db46034576bb89784e696e1ddf73cb36219f283cb4f9e7db77c7002f
Nov 04 17:07:35.959 INFO running `"docker" "start" "-a" "f83617a6db46034576bb89784e696e1ddf73cb36219f283cb4f9e7db77c7002f"`
Nov 04 17:07:36.375 INFO kablam! usermod: no changes
Nov 04 17:07:36.429 INFO kablam!     Checking stacktrace v0.2.1 (/source)
Nov 04 17:07:39.147 INFO kablam! warning: unused import: `std::fmt::Debug`
Nov 04 17:07:39.147 INFO kablam!  --> examples/using_result/main.rs:3:5
Nov 04 17:07:39.148 INFO kablam!   |
Nov 04 17:07:39.148 INFO kablam! 3 | use std::fmt::Debug;
Nov 04 17:07:39.149 INFO kablam!   |     ^^^^^^^^^^^^^^^
Nov 04 17:07:39.149 INFO kablam!   |
Nov 04 17:07:39.150 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 04 17:07:39.150 INFO kablam! 
Nov 04 17:07:39.471 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.07s
Nov 04 17:07:39.471 INFO kablam! su: No module specific data is present
Nov 04 17:07:40.603 INFO running `"docker" "rm" "-f" "f83617a6db46034576bb89784e696e1ddf73cb36219f283cb4f9e7db77c7002f"`
Nov 04 17:07:40.999 INFO blam! f83617a6db46034576bb89784e696e1ddf73cb36219f283cb4f9e7db77c7002f