Dec 19 14:41:24.418 INFO checking jzw2/rust-data-structures against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 14:41:24.418 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/jzw2/rust-data-structures:/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 14:41:24.936 INFO [stdout] 77a5ad48bbcc4f8ae528c5ac6105ddce4f6f37d36b97e5a9578c4113b30e72f4
Dec 19 14:41:24.940 INFO running `"docker" "start" "-a" "77a5ad48bbcc4f8ae528c5ac6105ddce4f6f37d36b97e5a9578c4113b30e72f4"`
Dec 19 14:41:26.668 INFO [stderr]     Checking rust-datastructures v0.1.0 (/opt/crater/workdir)
Dec 19 14:41:26.868 INFO [stderr] warning: unused variable: `key`
Dec 19 14:41:26.868 INFO [stderr]   --> src/main.rs:21:20
Dec 19 14:41:26.868 INFO [stderr]    |
Dec 19 14:41:26.868 INFO [stderr] 21 |     fn find(&self, key: usize) -> Option<&T> {
Dec 19 14:41:26.868 INFO [stderr]    |                    ^^^ help: consider using `_key` instead
Dec 19 14:41:26.868 INFO [stderr]    |
Dec 19 14:41:26.868 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 14:41:26.868 INFO [stderr] 
Dec 19 14:41:26.868 INFO [stderr] warning: unused variable: `key`
Dec 19 14:41:26.868 INFO [stderr]   --> src/main.rs:75:26
Dec 19 14:41:26.869 INFO [stderr]    |
Dec 19 14:41:26.869 INFO [stderr] 75 |     fn delete(&mut self, key: usize) {
Dec 19 14:41:26.869 INFO [stderr]    |                          ^^^ help: consider using `_key` instead
Dec 19 14:41:26.869 INFO [stderr] 
Dec 19 14:41:26.869 INFO [stderr] warning: field is never used: `data`
Dec 19 14:41:26.869 INFO [stderr]  --> src/main.rs:2:5
Dec 19 14:41:26.869 INFO [stderr]   |
Dec 19 14:41:26.869 INFO [stderr] 2 |     data: Vec<Node<T>>,
Dec 19 14:41:26.869 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.869 INFO [stderr]   |
Dec 19 14:41:26.869 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 14:41:26.869 INFO [stderr] 
Dec 19 14:41:26.869 INFO [stderr] warning: field is never used: `root`
Dec 19 14:41:26.869 INFO [stderr]  --> src/main.rs:4:5
Dec 19 14:41:26.869 INFO [stderr]   |
Dec 19 14:41:26.869 INFO [stderr] 4 |     root: Option<usize>,
Dec 19 14:41:26.869 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.869 INFO [stderr] 
Dec 19 14:41:26.869 INFO [stderr] warning: field is never used: `key`
Dec 19 14:41:26.869 INFO [stderr]  --> src/main.rs:8:5
Dec 19 14:41:26.869 INFO [stderr]   |
Dec 19 14:41:26.869 INFO [stderr] 8 |     key: usize,
Dec 19 14:41:26.869 INFO [stderr]   |     ^^^^^^^^^^
Dec 19 14:41:26.869 INFO [stderr] 
Dec 19 14:41:26.869 INFO [stderr] warning: field is never used: `value`
Dec 19 14:41:26.869 INFO [stderr]  --> src/main.rs:9:5
Dec 19 14:41:26.869 INFO [stderr]   |
Dec 19 14:41:26.869 INFO [stderr] 9 |     value: T,
Dec 19 14:41:26.869 INFO [stderr]   |     ^^^^^^^^
Dec 19 14:41:26.869 INFO [stderr] 
Dec 19 14:41:26.869 INFO [stderr] warning: field is never used: `left`
Dec 19 14:41:26.869 INFO [stderr]   --> src/main.rs:10:5
Dec 19 14:41:26.869 INFO [stderr]    |
Dec 19 14:41:26.869 INFO [stderr] 10 |     left: Option<usize>,
Dec 19 14:41:26.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.869 INFO [stderr] 
Dec 19 14:41:26.869 INFO [stderr] warning: field is never used: `right`
Dec 19 14:41:26.869 INFO [stderr]   --> src/main.rs:11:5
Dec 19 14:41:26.869 INFO [stderr]    |
Dec 19 14:41:26.869 INFO [stderr] 11 |     right: Option<usize>,
Dec 19 14:41:26.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.869 INFO [stderr] 
Dec 19 14:41:26.869 INFO [stderr] warning: method is never used: `new`
Dec 19 14:41:26.869 INFO [stderr]   --> src/main.rs:18:5
Dec 19 14:41:26.869 INFO [stderr]    |
Dec 19 14:41:26.869 INFO [stderr] 18 |     fn new() {
Dec 19 14:41:26.869 INFO [stderr]    |     ^^^^^^^^
Dec 19 14:41:26.869 INFO [stderr] 
Dec 19 14:41:26.869 INFO [stderr] warning: method is never used: `find`
Dec 19 14:41:26.869 INFO [stderr]   --> src/main.rs:21:5
Dec 19 14:41:26.869 INFO [stderr]    |
Dec 19 14:41:26.869 INFO [stderr] 21 |     fn find(&self, key: usize) -> Option<&T> {
Dec 19 14:41:26.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.869 INFO [stderr] 
Dec 19 14:41:26.869 INFO [stderr] warning: method is never used: `insert`
Dec 19 14:41:26.869 INFO [stderr]   --> src/main.rs:27:5
Dec 19 14:41:26.869 INFO [stderr]    |
Dec 19 14:41:26.869 INFO [stderr] 27 |     fn insert(&mut self, key: usize, value: T) {
Dec 19 14:41:26.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.869 INFO [stderr] 
Dec 19 14:41:26.869 INFO [stderr] warning: method is never used: `delete`
Dec 19 14:41:26.869 INFO [stderr]   --> src/main.rs:75:5
Dec 19 14:41:26.869 INFO [stderr]    |
Dec 19 14:41:26.869 INFO [stderr] 75 |     fn delete(&mut self, key: usize) {
Dec 19 14:41:26.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.869 INFO [stderr] 
Dec 19 14:41:26.900 INFO [stderr] warning: unused variable: `key`
Dec 19 14:41:26.900 INFO [stderr]   --> src/main.rs:21:20
Dec 19 14:41:26.900 INFO [stderr]    |
Dec 19 14:41:26.900 INFO [stderr] 21 |     fn find(&self, key: usize) -> Option<&T> {
Dec 19 14:41:26.900 INFO [stderr]    |                    ^^^ help: consider using `_key` instead
Dec 19 14:41:26.900 INFO [stderr]    |
Dec 19 14:41:26.900 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 14:41:26.900 INFO [stderr] 
Dec 19 14:41:26.900 INFO [stderr] warning: unused variable: `key`
Dec 19 14:41:26.900 INFO [stderr]   --> src/main.rs:75:26
Dec 19 14:41:26.900 INFO [stderr]    |
Dec 19 14:41:26.900 INFO [stderr] 75 |     fn delete(&mut self, key: usize) {
Dec 19 14:41:26.900 INFO [stderr]    |                          ^^^ help: consider using `_key` instead
Dec 19 14:41:26.900 INFO [stderr] 
Dec 19 14:41:26.903 INFO [stderr] warning: field is never used: `data`
Dec 19 14:41:26.903 INFO [stderr]  --> src/main.rs:2:5
Dec 19 14:41:26.903 INFO [stderr]   |
Dec 19 14:41:26.903 INFO [stderr] 2 |     data: Vec<Node<T>>,
Dec 19 14:41:26.904 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.904 INFO [stderr]   |
Dec 19 14:41:26.904 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 14:41:26.904 INFO [stderr] 
Dec 19 14:41:26.904 INFO [stderr] warning: field is never used: `root`
Dec 19 14:41:26.904 INFO [stderr]  --> src/main.rs:4:5
Dec 19 14:41:26.904 INFO [stderr]   |
Dec 19 14:41:26.904 INFO [stderr] 4 |     root: Option<usize>,
Dec 19 14:41:26.904 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.904 INFO [stderr] 
Dec 19 14:41:26.904 INFO [stderr] warning: field is never used: `key`
Dec 19 14:41:26.904 INFO [stderr]  --> src/main.rs:8:5
Dec 19 14:41:26.904 INFO [stderr]   |
Dec 19 14:41:26.904 INFO [stderr] 8 |     key: usize,
Dec 19 14:41:26.904 INFO [stderr]   |     ^^^^^^^^^^
Dec 19 14:41:26.904 INFO [stderr] 
Dec 19 14:41:26.904 INFO [stderr] warning: field is never used: `value`
Dec 19 14:41:26.904 INFO [stderr]  --> src/main.rs:9:5
Dec 19 14:41:26.908 INFO [stderr]   |
Dec 19 14:41:26.908 INFO [stderr] 9 |     value: T,
Dec 19 14:41:26.908 INFO [stderr]   |     ^^^^^^^^
Dec 19 14:41:26.908 INFO [stderr] 
Dec 19 14:41:26.908 INFO [stderr] warning: field is never used: `left`
Dec 19 14:41:26.908 INFO [stderr]   --> src/main.rs:10:5
Dec 19 14:41:26.908 INFO [stderr]    |
Dec 19 14:41:26.908 INFO [stderr] 10 |     left: Option<usize>,
Dec 19 14:41:26.908 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.908 INFO [stderr] 
Dec 19 14:41:26.908 INFO [stderr] warning: field is never used: `right`
Dec 19 14:41:26.908 INFO [stderr]   --> src/main.rs:11:5
Dec 19 14:41:26.908 INFO [stderr]    |
Dec 19 14:41:26.908 INFO [stderr] 11 |     right: Option<usize>,
Dec 19 14:41:26.908 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.908 INFO [stderr] 
Dec 19 14:41:26.908 INFO [stderr] warning: method is never used: `new`
Dec 19 14:41:26.908 INFO [stderr]   --> src/main.rs:18:5
Dec 19 14:41:26.909 INFO [stderr]    |
Dec 19 14:41:26.909 INFO [stderr] 18 |     fn new() {
Dec 19 14:41:26.909 INFO [stderr]    |     ^^^^^^^^
Dec 19 14:41:26.909 INFO [stderr] 
Dec 19 14:41:26.909 INFO [stderr] warning: method is never used: `find`
Dec 19 14:41:26.909 INFO [stderr]   --> src/main.rs:21:5
Dec 19 14:41:26.909 INFO [stderr]    |
Dec 19 14:41:26.909 INFO [stderr] 21 |     fn find(&self, key: usize) -> Option<&T> {
Dec 19 14:41:26.909 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.909 INFO [stderr] 
Dec 19 14:41:26.909 INFO [stderr] warning: method is never used: `insert`
Dec 19 14:41:26.909 INFO [stderr]   --> src/main.rs:27:5
Dec 19 14:41:26.909 INFO [stderr]    |
Dec 19 14:41:26.909 INFO [stderr] 27 |     fn insert(&mut self, key: usize, value: T) {
Dec 19 14:41:26.909 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.909 INFO [stderr] 
Dec 19 14:41:26.909 INFO [stderr] warning: method is never used: `delete`
Dec 19 14:41:26.909 INFO [stderr]   --> src/main.rs:75:5
Dec 19 14:41:26.909 INFO [stderr]    |
Dec 19 14:41:26.909 INFO [stderr] 75 |     fn delete(&mut self, key: usize) {
Dec 19 14:41:26.909 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:41:26.909 INFO [stderr] 
Dec 19 14:41:26.941 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
Dec 19 14:41:27.792 INFO running `"docker" "inspect" "77a5ad48bbcc4f8ae528c5ac6105ddce4f6f37d36b97e5a9578c4113b30e72f4"`
Dec 19 14:41:28.115 INFO running `"docker" "rm" "-f" "77a5ad48bbcc4f8ae528c5ac6105ddce4f6f37d36b97e5a9578c4113b30e72f4"`
Dec 19 14:41:28.404 INFO [stdout] 77a5ad48bbcc4f8ae528c5ac6105ddce4f6f37d36b97e5a9578c4113b30e72f4