Dec 12 11:31:11.934 INFO checking merkle-generator-0.2.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 11:31:11.934 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 11:31:12.311 INFO [stdout] 317f52bc79447646dbe5c0d5083e756e1ff772c4cd9f1f06a9d3c888429294ec
Dec 12 11:31:12.314 INFO running `"docker" "start" "-a" "317f52bc79447646dbe5c0d5083e756e1ff772c4cd9f1f06a9d3c888429294ec"`
Dec 12 11:31:13.153 INFO [stderr] usermod: no changes
Dec 12 11:31:13.236 INFO [stderr]     Checking flat-tree v1.1.0
Dec 12 11:31:13.236 INFO [stderr]    Compiling ring v0.9.7
Dec 12 11:31:20.832 INFO [stderr]     Checking merkle-generator v0.2.0 (/source)
Dec 12 11:31:22.092 INFO [stderr] warning: unused variable: `roots`
Dec 12 11:31:22.092 INFO [stderr]    --> src/lib.rs:142:26
Dec 12 11:31:22.092 INFO [stderr]     |
Dec 12 11:31:22.092 INFO [stderr] 142 |     fn leaf(leaf: &Node, roots: &Vec<Node>) -> Vec<u8> {
Dec 12 11:31:22.092 INFO [stderr]     |                          ^^^^^ help: consider using `_roots` instead
Dec 12 11:31:22.092 INFO [stderr]     |
Dec 12 11:31:22.092 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 12 11:31:22.092 INFO [stderr] 
Dec 12 11:31:22.144 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.97s
Dec 12 11:31:22.158 INFO [stderr] su: No module specific data is present
Dec 12 11:31:22.655 INFO running `"docker" "inspect" "317f52bc79447646dbe5c0d5083e756e1ff772c4cd9f1f06a9d3c888429294ec"`
Dec 12 11:31:22.858 INFO running `"docker" "rm" "-f" "317f52bc79447646dbe5c0d5083e756e1ff772c4cd9f1f06a9d3c888429294ec"`
Dec 12 11:31:23.081 INFO [stdout] 317f52bc79447646dbe5c0d5083e756e1ff772c4cd9f1f06a9d3c888429294ec