Nov 29 20:04:24.720 INFO checking raiker/persistent-rope against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 20:04:24.720 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-3/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 29 20:04:25.186 INFO [stdout] a689f911b63154242cb8aaca63dd13d9d848fb7094452b255291b5f74c3d8f3b
Nov 29 20:04:25.188 INFO running `"docker" "start" "-a" "a689f911b63154242cb8aaca63dd13d9d848fb7094452b255291b5f74c3d8f3b"`
Nov 29 20:04:26.924 INFO [stderr] usermod: no changes
Nov 29 20:04:27.036 INFO [stderr]     Checking persistent-rope v0.1.0 (/source)
Nov 29 20:04:27.444 INFO [stderr] warning: unused variable: `parent`
Nov 29 20:04:27.444 INFO [stderr]    --> src/main.rs:141:69
Nov 29 20:04:27.444 INFO [stderr]     |
Nov 29 20:04:27.444 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 29 20:04:27.444 INFO [stderr]     |                                                                        ^^^^^^ help: consider using `_parent` instead
Nov 29 20:04:27.444 INFO [stderr]     |
Nov 29 20:04:27.444 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 29 20:04:27.444 INFO [stderr] 
Nov 29 20:04:27.497 INFO [stderr] warning: struct is never constructed: `RcSliceableString`
Nov 29 20:04:27.497 INFO [stderr]  --> src/rcstr.rs:3:1
Nov 29 20:04:27.497 INFO [stderr]   |
Nov 29 20:04:27.497 INFO [stderr] 3 | pub struct RcSliceableString {
Nov 29 20:04:27.497 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:04:27.497 INFO [stderr]   |
Nov 29 20:04:27.497 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 29 20:04:27.497 INFO [stderr] 
Nov 29 20:04:27.498 INFO [stderr] warning: method is never used: `new`
Nov 29 20:04:27.498 INFO [stderr]   --> src/rcstr.rs:10:2
Nov 29 20:04:27.498 INFO [stderr]    |
Nov 29 20:04:27.498 INFO [stderr] 10 |     pub fn new(s: String) -> RcSliceableString {
Nov 29 20:04:27.498 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:04:27.498 INFO [stderr] 
Nov 29 20:04:27.498 INFO [stderr] warning: method is never used: `slice`
Nov 29 20:04:27.498 INFO [stderr]   --> src/rcstr.rs:19:2
Nov 29 20:04:27.498 INFO [stderr]    |
Nov 29 20:04:27.498 INFO [stderr] 19 |     pub fn slice(&self, start: usize, len: usize) -> RcSliceableString {
Nov 29 20:04:27.498 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:04:27.498 INFO [stderr] 
Nov 29 20:04:27.498 INFO [stderr] warning: method is never used: `as_str`
Nov 29 20:04:27.498 INFO [stderr]   --> src/rcstr.rs:34:2
Nov 29 20:04:27.498 INFO [stderr]    |
Nov 29 20:04:27.498 INFO [stderr] 34 |     pub fn as_str(&self) -> &str {
Nov 29 20:04:27.498 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:04:27.498 INFO [stderr] 
Nov 29 20:04:28.104 INFO [stderr] warning: unused variable: `parent`
Nov 29 20:04:28.104 INFO [stderr]    --> src/main.rs:141:69
Nov 29 20:04:28.104 INFO [stderr]     |
Nov 29 20:04:28.104 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 29 20:04:28.104 INFO [stderr]     |                                                                        ^^^^^^ help: consider using `_parent` instead
Nov 29 20:04:28.104 INFO [stderr]     |
Nov 29 20:04:28.104 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 29 20:04:28.104 INFO [stderr] 
Nov 29 20:04:28.307 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
Nov 29 20:04:28.309 INFO [stderr] su: No module specific data is present
Nov 29 20:04:29.376 INFO running `"docker" "inspect" "a689f911b63154242cb8aaca63dd13d9d848fb7094452b255291b5f74c3d8f3b"`
Nov 29 20:04:29.654 INFO running `"docker" "rm" "-f" "a689f911b63154242cb8aaca63dd13d9d848fb7094452b255291b5f74c3d8f3b"`
Nov 29 20:04:30.018 INFO [stdout] a689f911b63154242cb8aaca63dd13d9d848fb7094452b255291b5f74c3d8f3b