Aug 31 12:48:31.641 INFO checking stacktrace-0.2.1 against try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b for pr-53578
Aug 31 12:48:31.641 INFO running: cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets
Aug 31 12:48:31.641 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53578/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-0/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/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 +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 12:48:31.855 INFO blam! 1e8e450ff64c04d4b757fbf3e9f38fdb902a27d9427d5497bcff5f0be1a1d1f9
Aug 31 12:48:31.857 INFO running `"docker" "start" "-a" "1e8e450ff64c04d4b757fbf3e9f38fdb902a27d9427d5497bcff5f0be1a1d1f9"`
Aug 31 12:48:32.532 INFO kablam!     Checking stacktrace v0.2.1 (file:///source)
Aug 31 12:48:33.321 INFO kablam! warning: unused import: `std::fmt::Debug`
Aug 31 12:48:33.321 INFO kablam!  --> examples/using_result/main.rs:3:5
Aug 31 12:48:33.321 INFO kablam!   |
Aug 31 12:48:33.321 INFO kablam! 3 | use std::fmt::Debug;
Aug 31 12:48:33.321 INFO kablam!   |     ^^^^^^^^^^^^^^^
Aug 31 12:48:33.321 INFO kablam!   |
Aug 31 12:48:33.322 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 31 12:48:33.322 INFO kablam! 
Aug 31 12:48:33.480 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
Aug 31 12:48:33.485 INFO kablam! su: No module specific data is present
Aug 31 12:48:33.952 INFO running `"docker" "rm" "-f" "1e8e450ff64c04d4b757fbf3e9f38fdb902a27d9427d5497bcff5f0be1a1d1f9"`
Aug 31 12:48:34.075 INFO blam! 1e8e450ff64c04d4b757fbf3e9f38fdb902a27d9427d5497bcff5f0be1a1d1f9