Sep 01 05:40:29.075 INFO checking stacktrace-0.2.1 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 05:40:29.075 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 05:40:29.075 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 05:40:29.232 INFO blam! c910751bb26a8b684c4b3b7c2a39d96e1616f8c19f9361a1e476f0d736b6812e
Sep 01 05:40:29.238 INFO running `"docker" "start" "-a" "c910751bb26a8b684c4b3b7c2a39d96e1616f8c19f9361a1e476f0d736b6812e"`
Sep 01 05:40:30.146 INFO kablam!     Checking stacktrace v0.2.1 (file:///source)
Sep 01 05:40:31.124 INFO kablam! warning: unused import: `std::fmt::Debug`
Sep 01 05:40:31.124 INFO kablam!  --> examples/using_result/main.rs:3:5
Sep 01 05:40:31.125 INFO kablam!   |
Sep 01 05:40:31.125 INFO kablam! 3 | use std::fmt::Debug;
Sep 01 05:40:31.125 INFO kablam!   |     ^^^^^^^^^^^^^^^
Sep 01 05:40:31.125 INFO kablam!   |
Sep 01 05:40:31.125 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 01 05:40:31.125 INFO kablam! 
Sep 01 05:40:31.228 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
Sep 01 05:40:31.232 INFO kablam! su: No module specific data is present
Sep 01 05:40:31.770 INFO running `"docker" "rm" "-f" "c910751bb26a8b684c4b3b7c2a39d96e1616f8c19f9361a1e476f0d736b6812e"`
Sep 01 05:40:31.852 INFO blam! c910751bb26a8b684c4b3b7c2a39d96e1616f8c19f9361a1e476f0d736b6812e