Sep 17 16:50:10.818 INFO checking stacktrace-0.2.1 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 16:50:10.818 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 16:50:10.818 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-0/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 16:50:11.016 INFO blam! 122f5d94eedbd5319dde239ee40206526991cd8feb19e3905d16762dd14def11
Sep 17 16:50:11.019 INFO running `"docker" "start" "-a" "122f5d94eedbd5319dde239ee40206526991cd8feb19e3905d16762dd14def11"`
Sep 17 16:50:11.630 INFO kablam! usermod: no changes
Sep 17 16:50:11.701 INFO kablam!     Checking stacktrace v0.2.1 (/source)
Sep 17 16:50:12.354 INFO kablam! warning: unused import: `std::fmt::Debug`
Sep 17 16:50:12.355 INFO kablam!  --> examples/using_result/main.rs:3:5
Sep 17 16:50:12.355 INFO kablam!   |
Sep 17 16:50:12.355 INFO kablam! 3 | use std::fmt::Debug;
Sep 17 16:50:12.355 INFO kablam!   |     ^^^^^^^^^^^^^^^
Sep 17 16:50:12.355 INFO kablam!   |
Sep 17 16:50:12.355 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 17 16:50:12.355 INFO kablam! 
Sep 17 16:50:12.676 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
Sep 17 16:50:12.683 INFO kablam! su: No module specific data is present
Sep 17 16:50:13.448 INFO running `"docker" "rm" "-f" "122f5d94eedbd5319dde239ee40206526991cd8feb19e3905d16762dd14def11"`
Sep 17 16:50:13.651 INFO blam! 122f5d94eedbd5319dde239ee40206526991cd8feb19e3905d16762dd14def11