Nov 27 22:19:48.807 INFO checking raiker/persistent-rope against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 27 22:19:48.808 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-5/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 22:19:49.341 INFO [stdout] 0cd05f738c0ce570722ea7f60ac4c4af27e17ea7ae46400035312991140baacc
Nov 27 22:19:49.343 INFO running `"docker" "start" "-a" "0cd05f738c0ce570722ea7f60ac4c4af27e17ea7ae46400035312991140baacc"`
Nov 27 22:19:51.167 INFO [stderr] usermod: no changes
Nov 27 22:19:51.238 INFO [stderr]     Checking persistent-rope v0.1.0 (/source)
Nov 27 22:19:51.828 INFO [stderr] warning: unused variable: `parent`
Nov 27 22:19:51.830 INFO [stderr]    --> src/main.rs:141:69
Nov 27 22:19:51.830 INFO [stderr]     |
Nov 27 22:19:51.831 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 22:19:51.832 INFO [stderr]     |                                                                        ^^^^^^ help: consider using `_parent` instead
Nov 27 22:19:51.832 INFO [stderr]     |
Nov 27 22:19:51.833 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 27 22:19:51.833 INFO [stderr] 
Nov 27 22:19:51.869 INFO [stderr] warning: struct is never constructed: `RcSliceableString`
Nov 27 22:19:51.870 INFO [stderr]  --> src/rcstr.rs:3:1
Nov 27 22:19:51.871 INFO [stderr]   |
Nov 27 22:19:51.871 INFO [stderr] 3 | pub struct RcSliceableString {
Nov 27 22:19:51.872 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 22:19:51.872 INFO [stderr]   |
Nov 27 22:19:51.873 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 22:19:51.873 INFO [stderr] 
Nov 27 22:19:51.874 INFO [stderr] warning: method is never used: `new`
Nov 27 22:19:51.874 INFO [stderr]   --> src/rcstr.rs:10:2
Nov 27 22:19:51.874 INFO [stderr]    |
Nov 27 22:19:51.874 INFO [stderr] 10 |     pub fn new(s: String) -> RcSliceableString {
Nov 27 22:19:51.874 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 22:19:51.874 INFO [stderr] 
Nov 27 22:19:51.875 INFO [stderr] warning: method is never used: `slice`
Nov 27 22:19:51.876 INFO [stderr]   --> src/rcstr.rs:19:2
Nov 27 22:19:51.876 INFO [stderr]    |
Nov 27 22:19:51.876 INFO [stderr] 19 |     pub fn slice(&self, start: usize, len: usize) -> RcSliceableString {
Nov 27 22:19:51.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 22:19:51.876 INFO [stderr] 
Nov 27 22:19:51.876 INFO [stderr] warning: method is never used: `as_str`
Nov 27 22:19:51.876 INFO [stderr]   --> src/rcstr.rs:34:2
Nov 27 22:19:51.876 INFO [stderr]    |
Nov 27 22:19:51.876 INFO [stderr] 34 |     pub fn as_str(&self) -> &str {
Nov 27 22:19:51.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 22:19:51.877 INFO [stderr] 
Nov 27 22:19:52.418 INFO [stderr] warning: unused variable: `parent`
Nov 27 22:19:52.419 INFO [stderr]    --> src/main.rs:141:69
Nov 27 22:19:52.420 INFO [stderr]     |
Nov 27 22:19:52.421 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 22:19:52.421 INFO [stderr]     |                                                                        ^^^^^^ help: consider using `_parent` instead
Nov 27 22:19:52.422 INFO [stderr]     |
Nov 27 22:19:52.423 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 27 22:19:52.423 INFO [stderr] 
Nov 27 22:19:52.652 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
Nov 27 22:19:52.660 INFO [stderr] su: No module specific data is present
Nov 27 22:19:54.116 INFO running `"docker" "inspect" "0cd05f738c0ce570722ea7f60ac4c4af27e17ea7ae46400035312991140baacc"`
Nov 27 22:19:54.470 INFO running `"docker" "rm" "-f" "0cd05f738c0ce570722ea7f60ac4c4af27e17ea7ae46400035312991140baacc"`
Nov 27 22:19:54.796 INFO [stdout] 0cd05f738c0ce570722ea7f60ac4c4af27e17ea7ae46400035312991140baacc