Dec 17 23:37:16.793 INFO checking green4free/binary_search_tree against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 23:37:16.793 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/green4free/binary_search_tree:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 23:37:17.334 INFO [stdout] 5596062dd4d8d5bcbae3658994408239dba6ac44dff6a3926d05d25fd2a6dae9
Dec 17 23:37:17.344 INFO running `"docker" "start" "-a" "5596062dd4d8d5bcbae3658994408239dba6ac44dff6a3926d05d25fd2a6dae9"`
Dec 17 23:37:18.865 INFO [stderr]     Checking binary_search_tree v0.1.0 (/opt/crater/workdir)
Dec 17 23:37:19.286 INFO [stderr] warning: unused variable: `data`
Dec 17 23:37:19.286 INFO [stderr]   --> src/main.rs:39:9
Dec 17 23:37:19.286 INFO [stderr]    |
Dec 17 23:37:19.286 INFO [stderr] 39 |             Cons(data, ref left, ref right) => 1 + left.len() + right.len(),
Dec 17 23:37:19.286 INFO [stderr]    |                  ^^^^ help: consider using `_data` instead
Dec 17 23:37:19.287 INFO [stderr]    |
Dec 17 23:37:19.287 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 23:37:19.287 INFO [stderr] 
Dec 17 23:37:19.287 INFO [stderr] warning: unused variable: `data`
Dec 17 23:37:19.287 INFO [stderr]   --> src/main.rs:46:9
Dec 17 23:37:19.290 INFO [stderr]    |
Dec 17 23:37:19.290 INFO [stderr] 46 |             Cons(data, ref left, ref right) => {
Dec 17 23:37:19.290 INFO [stderr]    |                  ^^^^ help: consider using `_data` instead
Dec 17 23:37:19.290 INFO [stderr] 
Dec 17 23:37:19.308 INFO [stderr] warning: unused variable: `data`
Dec 17 23:37:19.309 INFO [stderr]   --> src/main.rs:39:9
Dec 17 23:37:19.309 INFO [stderr]    |
Dec 17 23:37:19.309 INFO [stderr] 39 |             Cons(data, ref left, ref right) => 1 + left.len() + right.len(),
Dec 17 23:37:19.309 INFO [stderr]    |                  ^^^^ help: consider using `_data` instead
Dec 17 23:37:19.310 INFO [stderr]    |
Dec 17 23:37:19.310 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 23:37:19.310 INFO [stderr] 
Dec 17 23:37:19.310 INFO [stderr] warning: unused variable: `data`
Dec 17 23:37:19.310 INFO [stderr]   --> src/main.rs:46:9
Dec 17 23:37:19.310 INFO [stderr]    |
Dec 17 23:37:19.310 INFO [stderr] 46 |             Cons(data, ref left, ref right) => {
Dec 17 23:37:19.310 INFO [stderr]    |                  ^^^^ help: consider using `_data` instead
Dec 17 23:37:19.310 INFO [stderr] 
Dec 17 23:37:19.384 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
Dec 17 23:37:20.026 INFO running `"docker" "inspect" "5596062dd4d8d5bcbae3658994408239dba6ac44dff6a3926d05d25fd2a6dae9"`
Dec 17 23:37:20.354 INFO running `"docker" "rm" "-f" "5596062dd4d8d5bcbae3658994408239dba6ac44dff6a3926d05d25fd2a6dae9"`
Dec 17 23:37:20.648 INFO [stdout] 5596062dd4d8d5bcbae3658994408239dba6ac44dff6a3926d05d25fd2a6dae9