Nov 27 22:19:44.212 INFO checking raiker/persistent-rope against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 22:19:44.214 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-5/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 27 22:19:44.627 INFO [stdout] 4890e519f3bf313188efed2d523c42853f85d43af82c2b981541816b0a5e388b
Nov 27 22:19:44.627 INFO running `"docker" "start" "-a" "4890e519f3bf313188efed2d523c42853f85d43af82c2b981541816b0a5e388b"`
Nov 27 22:19:45.719 INFO [stderr] usermod: no changes
Nov 27 22:19:45.788 INFO [stderr]     Checking persistent-rope v0.1.0 (/source)
Nov 27 22:19:46.352 INFO [stderr] warning: unused variable: `parent`
Nov 27 22:19:46.352 INFO [stderr]    --> src/main.rs:141:69
Nov 27 22:19:46.352 INFO [stderr]     |
Nov 27 22:19:46.352 INFO [stderr] 141 |     fn rec_insert(key: K, val: V, current: &Rc<Option<TreeNode<K,V>>>, parent: Option<&Rc<Option<TreeNode<K,V>>>>) -> InsertionResultRecursion<K,V>{
Nov 27 22:19:46.352 INFO [stderr]     |                                                                        ^^^^^^ help: consider using `_parent` instead
Nov 27 22:19:46.352 INFO [stderr]     |
Nov 27 22:19:46.352 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 27 22:19:46.352 INFO [stderr] 
Nov 27 22:19:46.401 INFO [stderr] warning: struct is never constructed: `RcSliceableString`
Nov 27 22:19:46.401 INFO [stderr]  --> src/rcstr.rs:3:1
Nov 27 22:19:46.401 INFO [stderr]   |
Nov 27 22:19:46.401 INFO [stderr] 3 | pub struct RcSliceableString {
Nov 27 22:19:46.401 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 22:19:46.401 INFO [stderr]   |
Nov 27 22:19:46.401 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 22:19:46.401 INFO [stderr] 
Nov 27 22:19:46.401 INFO [stderr] warning: method is never used: `new`
Nov 27 22:19:46.401 INFO [stderr]   --> src/rcstr.rs:10:2
Nov 27 22:19:46.401 INFO [stderr]    |
Nov 27 22:19:46.401 INFO [stderr] 10 |     pub fn new(s: String) -> RcSliceableString {
Nov 27 22:19:46.401 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 22:19:46.401 INFO [stderr] 
Nov 27 22:19:46.401 INFO [stderr] warning: method is never used: `slice`
Nov 27 22:19:46.401 INFO [stderr]   --> src/rcstr.rs:19:2
Nov 27 22:19:46.401 INFO [stderr]    |
Nov 27 22:19:46.401 INFO [stderr] 19 |     pub fn slice(&self, start: usize, len: usize) -> RcSliceableString {
Nov 27 22:19:46.401 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 22:19:46.402 INFO [stderr] 
Nov 27 22:19:46.402 INFO [stderr] warning: method is never used: `as_str`
Nov 27 22:19:46.402 INFO [stderr]   --> src/rcstr.rs:34:2
Nov 27 22:19:46.402 INFO [stderr]    |
Nov 27 22:19:46.402 INFO [stderr] 34 |     pub fn as_str(&self) -> &str {
Nov 27 22:19:46.402 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 22:19:46.402 INFO [stderr] 
Nov 27 22:19:46.704 INFO [stderr] warning: unused variable: `parent`
Nov 27 22:19:46.704 INFO [stderr]    --> src/main.rs:141:69
Nov 27 22:19:46.704 INFO [stderr]     |
Nov 27 22:19:46.704 INFO [stderr] 141 |     fn rec_insert(key: K, val: V, current: &Rc<Option<TreeNode<K,V>>>, parent: Option<&Rc<Option<TreeNode<K,V>>>>) -> InsertionResultRecursion<K,V>{
Nov 27 22:19:46.704 INFO [stderr]     |                                                                        ^^^^^^ help: consider using `_parent` instead
Nov 27 22:19:46.704 INFO [stderr]     |
Nov 27 22:19:46.704 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 27 22:19:46.704 INFO [stderr] 
Nov 27 22:19:46.916 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
Nov 27 22:19:46.916 INFO [stderr] su: No module specific data is present
Nov 27 22:19:48.077 INFO running `"docker" "inspect" "4890e519f3bf313188efed2d523c42853f85d43af82c2b981541816b0a5e388b"`
Nov 27 22:19:48.418 INFO running `"docker" "rm" "-f" "4890e519f3bf313188efed2d523c42853f85d43af82c2b981541816b0a5e388b"`
Nov 27 22:19:48.729 INFO [stdout] 4890e519f3bf313188efed2d523c42853f85d43af82c2b981541816b0a5e388b