Dec 19 22:37:28.906 INFO checking Norbytus/rust_bin_tree against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 22:37:28.907 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/Norbytus/rust_bin_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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 22:37:29.312 INFO [stdout] 3b2e7d34036b7f673271fa0526ddb5bf9f554f259ff0053d56b7f85608cad36a
Dec 19 22:37:29.320 INFO running `"docker" "start" "-a" "3b2e7d34036b7f673271fa0526ddb5bf9f554f259ff0053d56b7f85608cad36a"`
Dec 19 22:37:30.940 INFO [stderr]     Checking bin_tree v0.1.0 (/opt/crater/workdir)
Dec 19 22:37:31.192 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 19 22:37:31.192 INFO [stderr]  --> src/main.rs:2:5
Dec 19 22:37:31.192 INFO [stderr]   |
Dec 19 22:37:31.192 INFO [stderr] 2 | use std::rc::Rc;
Dec 19 22:37:31.192 INFO [stderr]   |     ^^^^^^^^^^^
Dec 19 22:37:31.192 INFO [stderr]   |
Dec 19 22:37:31.196 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 22:37:31.196 INFO [stderr] 
Dec 19 22:37:31.291 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 19 22:37:31.291 INFO [stderr]  --> src/main.rs:2:5
Dec 19 22:37:31.291 INFO [stderr]   |
Dec 19 22:37:31.291 INFO [stderr] 2 | use std::rc::Rc;
Dec 19 22:37:31.291 INFO [stderr]   |     ^^^^^^^^^^^
Dec 19 22:37:31.291 INFO [stderr]   |
Dec 19 22:37:31.291 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 22:37:31.291 INFO [stderr] 
Dec 19 22:37:31.424 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
Dec 19 22:37:32.263 INFO running `"docker" "inspect" "3b2e7d34036b7f673271fa0526ddb5bf9f554f259ff0053d56b7f85608cad36a"`
Dec 19 22:37:32.598 INFO running `"docker" "rm" "-f" "3b2e7d34036b7f673271fa0526ddb5bf9f554f259ff0053d56b7f85608cad36a"`
Dec 19 22:37:32.881 INFO [stdout] 3b2e7d34036b7f673271fa0526ddb5bf9f554f259ff0053d56b7f85608cad36a