Sep 19 19:44:10.582 INFO checking stacktrace-0.2.1 against try#135b4cd023a753409d01e43b0f23d22a899feeeb for pr-54352
Sep 19 19:44:10.582 INFO running: cargo +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets
Sep 19 19:44:10.582 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54352/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-5/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/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=1000" "-e" "CMD=cargo +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 19:44:10.775 INFO blam! dc70db1db0f314f670a96a090cd7f6e7595a16f8211f9aa0a7ce65a2bf20b783
Sep 19 19:44:10.776 INFO running `"docker" "start" "-a" "dc70db1db0f314f670a96a090cd7f6e7595a16f8211f9aa0a7ce65a2bf20b783"`
Sep 19 19:44:11.659 INFO kablam! usermod: no changes
Sep 19 19:44:11.726 INFO kablam!     Checking stacktrace v0.2.1 (/source)
Sep 19 19:44:12.530 INFO kablam! warning: unused import: `std::fmt::Debug`
Sep 19 19:44:12.530 INFO kablam!  --> examples/using_result/main.rs:3:5
Sep 19 19:44:12.530 INFO kablam!   |
Sep 19 19:44:12.530 INFO kablam! 3 | use std::fmt::Debug;
Sep 19 19:44:12.530 INFO kablam!   |     ^^^^^^^^^^^^^^^
Sep 19 19:44:12.530 INFO kablam!   |
Sep 19 19:44:12.530 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 19 19:44:12.530 INFO kablam! 
Sep 19 19:44:12.806 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Sep 19 19:44:12.811 INFO kablam! su: No module specific data is present
Sep 19 19:44:13.736 INFO running `"docker" "rm" "-f" "dc70db1db0f314f670a96a090cd7f6e7595a16f8211f9aa0a7ce65a2bf20b783"`
Sep 19 19:44:13.864 INFO blam! dc70db1db0f314f670a96a090cd7f6e7595a16f8211f9aa0a7ce65a2bf20b783