Dec 19 19:55:20.061 INFO checking benschulz/acid against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:55:20.061 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/benschulz/acid:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:55:20.450 INFO [stdout] 8b024739ad35fe3907b4c98d731cf4f3525e78c7b897724c0fa2fc053c7617eb
Dec 19 19:55:20.454 INFO running `"docker" "start" "-a" "8b024739ad35fe3907b4c98d731cf4f3525e78c7b897724c0fa2fc053c7617eb"`
Dec 19 19:55:22.032 INFO [stderr]     Checking acid v0.1.0 (/opt/crater/workdir)
Dec 19 19:55:22.472 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Dec 19 19:55:22.472 INFO [stderr]   --> src/lib.rs:51:5
Dec 19 19:55:22.472 INFO [stderr]    |
Dec 19 19:55:22.472 INFO [stderr] 51 |     acid.clone();
Dec 19 19:55:22.472 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 19 19:55:22.472 INFO [stderr]    |
Dec 19 19:55:22.472 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 19:55:22.472 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Dec 19 19:55:22.472 INFO [stderr] 
Dec 19 19:55:22.472 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Dec 19 19:55:22.472 INFO [stderr]   --> src/lib.rs:52:5
Dec 19 19:55:22.472 INFO [stderr]    |
Dec 19 19:55:22.472 INFO [stderr] 52 |     acid.clone();
Dec 19 19:55:22.472 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 19 19:55:22.472 INFO [stderr]    |
Dec 19 19:55:22.472 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Dec 19 19:55:22.472 INFO [stderr] 
Dec 19 19:55:22.761 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Dec 19 19:55:23.173 INFO running `"docker" "inspect" "8b024739ad35fe3907b4c98d731cf4f3525e78c7b897724c0fa2fc053c7617eb"`
Dec 19 19:55:23.356 INFO running `"docker" "rm" "-f" "8b024739ad35fe3907b4c98d731cf4f3525e78c7b897724c0fa2fc053c7617eb"`
Dec 19 19:55:23.555 INFO [stdout] 8b024739ad35fe3907b4c98d731cf4f3525e78c7b897724c0fa2fc053c7617eb