Nov 28 04:44:43.637 INFO checking green4free/binary_search_tree against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 04:44:43.637 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 04:44:44.165 INFO [stdout] b5762f5ac363d5139d1adbfa96dd2110315491d93ad97c2f785d7be99b6f97e4
Nov 28 04:44:44.170 INFO running `"docker" "start" "-a" "b5762f5ac363d5139d1adbfa96dd2110315491d93ad97c2f785d7be99b6f97e4"`
Nov 28 04:44:45.340 INFO [stderr] usermod: no changes
Nov 28 04:44:45.404 INFO [stderr]     Checking binary_search_tree v0.1.0 (/source)
Nov 28 04:44:45.892 INFO [stderr] warning: unused variable: `data`
Nov 28 04:44:45.892 INFO [stderr]   --> src/main.rs:39:9
Nov 28 04:44:45.892 INFO [stderr]    |
Nov 28 04:44:45.892 INFO [stderr] 39 |             Cons(data, ref left, ref right) => 1 + left.len() + right.len(),
Nov 28 04:44:45.892 INFO [stderr]    |                  ^^^^ help: consider using `_data` instead
Nov 28 04:44:45.892 INFO [stderr]    |
Nov 28 04:44:45.892 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 04:44:45.893 INFO [stderr] 
Nov 28 04:44:45.893 INFO [stderr] warning: unused variable: `data`
Nov 28 04:44:45.893 INFO [stderr]   --> src/main.rs:46:9
Nov 28 04:44:45.893 INFO [stderr]    |
Nov 28 04:44:45.893 INFO [stderr] 46 |             Cons(data, ref left, ref right) => {
Nov 28 04:44:45.893 INFO [stderr]    |                  ^^^^ help: consider using `_data` instead
Nov 28 04:44:45.893 INFO [stderr] 
Nov 28 04:44:45.893 INFO [stderr] warning: unused variable: `data`
Nov 28 04:44:45.893 INFO [stderr]   --> src/main.rs:39:9
Nov 28 04:44:45.893 INFO [stderr]    |
Nov 28 04:44:45.893 INFO [stderr] 39 |             Cons(data, ref left, ref right) => 1 + left.len() + right.len(),
Nov 28 04:44:45.893 INFO [stderr]    |                  ^^^^ help: consider using `_data` instead
Nov 28 04:44:45.893 INFO [stderr]    |
Nov 28 04:44:45.893 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 04:44:45.893 INFO [stderr] 
Nov 28 04:44:45.893 INFO [stderr] warning: unused variable: `data`
Nov 28 04:44:45.893 INFO [stderr]   --> src/main.rs:46:9
Nov 28 04:44:45.893 INFO [stderr]    |
Nov 28 04:44:45.893 INFO [stderr] 46 |             Cons(data, ref left, ref right) => {
Nov 28 04:44:45.893 INFO [stderr]    |                  ^^^^ help: consider using `_data` instead
Nov 28 04:44:45.893 INFO [stderr] 
Nov 28 04:44:45.932 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Nov 28 04:44:45.934 INFO [stderr] su: No module specific data is present
Nov 28 04:44:47.030 INFO running `"docker" "inspect" "b5762f5ac363d5139d1adbfa96dd2110315491d93ad97c2f785d7be99b6f97e4"`
Nov 28 04:44:47.342 INFO running `"docker" "rm" "-f" "b5762f5ac363d5139d1adbfa96dd2110315491d93ad97c2f785d7be99b6f97e4"`
Nov 28 04:44:47.605 INFO [stdout] b5762f5ac363d5139d1adbfa96dd2110315491d93ad97c2f785d7be99b6f97e4