Sep 14 07:38:50.006 INFO checking tk-bufstream-0.3.0 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 07:38:50.006 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 07:38:50.006 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-7/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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 +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 07:38:50.202 INFO blam! 124efa90808ac079be6f95554a7609ce2820c668eba6ee0985ccc1b5ea9fa640
Sep 14 07:38:50.207 INFO running `"docker" "start" "-a" "124efa90808ac079be6f95554a7609ce2820c668eba6ee0985ccc1b5ea9fa640"`
Sep 14 07:38:51.153 INFO kablam! usermod: no changes
Sep 14 07:38:51.311 INFO kablam!     Checking tk-bufstream v0.3.0 (file:///source)
Sep 14 07:38:52.778 INFO kablam! warning: unused import: `std::str`
Sep 14 07:38:52.779 INFO kablam!  --> examples/raw_echo.rs:8:5
Sep 14 07:38:52.779 INFO kablam!   |
Sep 14 07:38:52.779 INFO kablam! 8 | use std::str;
Sep 14 07:38:52.779 INFO kablam!   |     ^^^^^^^^
Sep 14 07:38:52.779 INFO kablam!   |
Sep 14 07:38:52.779 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 14 07:38:52.779 INFO kablam! 
Sep 14 07:38:53.145 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
Sep 14 07:38:53.152 INFO kablam! su: No module specific data is present
Sep 14 07:38:53.959 INFO running `"docker" "rm" "-f" "124efa90808ac079be6f95554a7609ce2820c668eba6ee0985ccc1b5ea9fa640"`
Sep 14 07:38:54.051 INFO blam! 124efa90808ac079be6f95554a7609ce2820c668eba6ee0985ccc1b5ea9fa640