Sep 19 17:44:10.170 INFO checking stash-0.1.3 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 17:44:10.170 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 17:44:10.170 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-4/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 17:44:10.515 INFO blam! cc04817f0f8c737e21f99b6445c6c7c3cfcafe7e1de4748e277372092a952cf1
Sep 19 17:44:10.517 INFO running `"docker" "start" "-a" "cc04817f0f8c737e21f99b6445c6c7c3cfcafe7e1de4748e277372092a952cf1"`
Sep 19 17:44:11.628 INFO kablam! usermod: no changes
Sep 19 17:44:11.690 INFO kablam!     Checking stash v0.1.3 (/source)
Sep 19 17:44:13.224 INFO kablam! warning: unused import: `std::iter`
Sep 19 17:44:13.224 INFO kablam!  --> benches/unique_stash.rs:7:5
Sep 19 17:44:13.224 INFO kablam!   |
Sep 19 17:44:13.224 INFO kablam! 7 | use std::iter;
Sep 19 17:44:13.224 INFO kablam!   |     ^^^^^^^^^
Sep 19 17:44:13.224 INFO kablam!   |
Sep 19 17:44:13.224 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 19 17:44:13.224 INFO kablam! 
Sep 19 17:44:13.554 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
Sep 19 17:44:13.554 INFO kablam! su: No module specific data is present
Sep 19 17:44:14.056 INFO running `"docker" "rm" "-f" "cc04817f0f8c737e21f99b6445c6c7c3cfcafe7e1de4748e277372092a952cf1"`
Sep 19 17:44:14.169 INFO blam! cc04817f0f8c737e21f99b6445c6c7c3cfcafe7e1de4748e277372092a952cf1