Dec 05 10:29:55.796 INFO checking merkle-generator-0.2.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 10:29:55.797 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 10:29:55.964 INFO [stdout] 0e8a7a489ce6765a4697d5ae275b864e92926009d80eeb19d3a9dd139d4ed6e6
Dec 05 10:29:55.968 INFO running `"docker" "start" "-a" "0e8a7a489ce6765a4697d5ae275b864e92926009d80eeb19d3a9dd139d4ed6e6"`
Dec 05 10:29:56.851 INFO [stderr] usermod: no changes
Dec 05 10:29:56.951 INFO [stderr]     Checking flat-tree v1.1.0
Dec 05 10:29:56.967 INFO [stderr]    Compiling ring v0.9.7
Dec 05 10:30:02.662 INFO [stderr]     Checking merkle-generator v0.2.0 (/source)
Dec 05 10:30:03.805 INFO [stderr] warning: unused variable: `roots`
Dec 05 10:30:03.805 INFO [stderr]    --> src/lib.rs:142:26
Dec 05 10:30:03.805 INFO [stderr]     |
Dec 05 10:30:03.805 INFO [stderr] 142 |     fn leaf(leaf: &Node, roots: &Vec<Node>) -> Vec<u8> {
Dec 05 10:30:03.805 INFO [stderr]     |                          ^^^^^ help: consider using `_roots` instead
Dec 05 10:30:03.805 INFO [stderr]     |
Dec 05 10:30:03.805 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 05 10:30:03.805 INFO [stderr] 
Dec 05 10:30:03.871 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.00s
Dec 05 10:30:03.874 INFO [stderr] su: No module specific data is present
Dec 05 10:30:04.397 INFO running `"docker" "inspect" "0e8a7a489ce6765a4697d5ae275b864e92926009d80eeb19d3a9dd139d4ed6e6"`
Dec 05 10:30:04.599 INFO running `"docker" "rm" "-f" "0e8a7a489ce6765a4697d5ae275b864e92926009d80eeb19d3a9dd139d4ed6e6"`
Dec 05 10:30:04.791 INFO [stdout] 0e8a7a489ce6765a4697d5ae275b864e92926009d80eeb19d3a9dd139d4ed6e6