Sep 06 03:52:35.274 INFO checking merkle-generator-0.2.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 03:52:35.274 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 03:52:35.274 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-2/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 03:52:35.495 INFO blam! 17091b67f05939eb7345b9555ef2c5fe20e2c29e7841df6ef1630076ca853fca
Sep 06 03:52:35.497 INFO running `"docker" "start" "-a" "17091b67f05939eb7345b9555ef2c5fe20e2c29e7841df6ef1630076ca853fca"`
Sep 06 03:52:36.486 INFO kablam! usermod: no changes
Sep 06 03:52:36.566 INFO kablam!     Checking flat-tree v1.1.0
Sep 06 03:52:36.607 INFO kablam!    Compiling ring v0.9.7
Sep 06 03:52:42.162 INFO kablam!     Checking merkle-generator v0.2.0 (file:///source)
Sep 06 03:52:42.582 INFO kablam! warning: unused variable: `roots`
Sep 06 03:52:42.582 INFO kablam!    --> src/lib.rs:142:26
Sep 06 03:52:42.582 INFO kablam!     |
Sep 06 03:52:42.582 INFO kablam! 142 |     fn leaf(leaf: &Node, roots: &Vec<Node>) -> Vec<u8> {
Sep 06 03:52:42.582 INFO kablam!     |                          ^^^^^ help: consider using `_roots` instead
Sep 06 03:52:42.582 INFO kablam!     |
Sep 06 03:52:42.582 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 06 03:52:42.582 INFO kablam! 
Sep 06 03:52:42.630 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.12s
Sep 06 03:52:42.634 INFO kablam! su: No module specific data is present
Sep 06 03:52:43.105 INFO running `"docker" "rm" "-f" "17091b67f05939eb7345b9555ef2c5fe20e2c29e7841df6ef1630076ca853fca"`
Sep 06 03:52:43.195 INFO blam! 17091b67f05939eb7345b9555ef2c5fe20e2c29e7841df6ef1630076ca853fca