Nov 06 15:41:14.375 INFO checking raiker/persistent-rope against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 06 15:41:14.376 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-2/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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 06 15:41:14.640 INFO blam! 28348632e19363326fbab0de3bb755ac79b0f0d00a3ae39646b2217cf3dc2f13
Nov 06 15:41:14.660 INFO running `"docker" "start" "-a" "28348632e19363326fbab0de3bb755ac79b0f0d00a3ae39646b2217cf3dc2f13"`
Nov 06 15:41:15.900 INFO kablam! usermod: no changes
Nov 06 15:41:15.937 INFO kablam!     Checking persistent-rope v0.1.0 (/source)
Nov 06 15:41:16.220 INFO kablam! warning: unused variable: `parent`
Nov 06 15:41:16.221 INFO kablam!    --> src/main.rs:141:69
Nov 06 15:41:16.221 INFO kablam!     |
Nov 06 15:41:16.221 INFO kablam! 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 06 15:41:16.221 INFO kablam!     |                                                                        ^^^^^^ help: consider using `_parent` instead
Nov 06 15:41:16.221 INFO kablam!     |
Nov 06 15:41:16.221 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 06 15:41:16.221 INFO kablam! 
Nov 06 15:41:16.242 INFO kablam! warning: struct is never constructed: `RcSliceableString`
Nov 06 15:41:16.242 INFO kablam!  --> src/rcstr.rs:3:1
Nov 06 15:41:16.242 INFO kablam!   |
Nov 06 15:41:16.242 INFO kablam! 3 | pub struct RcSliceableString {
Nov 06 15:41:16.242 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 15:41:16.242 INFO kablam!   |
Nov 06 15:41:16.242 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 06 15:41:16.242 INFO kablam! 
Nov 06 15:41:16.242 INFO kablam! warning: method is never used: `new`
Nov 06 15:41:16.242 INFO kablam!   --> src/rcstr.rs:10:2
Nov 06 15:41:16.242 INFO kablam!    |
Nov 06 15:41:16.242 INFO kablam! 10 |     pub fn new(s: String) -> RcSliceableString {
Nov 06 15:41:16.242 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 15:41:16.242 INFO kablam! 
Nov 06 15:41:16.242 INFO kablam! warning: method is never used: `slice`
Nov 06 15:41:16.242 INFO kablam!   --> src/rcstr.rs:19:2
Nov 06 15:41:16.242 INFO kablam!    |
Nov 06 15:41:16.242 INFO kablam! 19 |     pub fn slice(&self, start: usize, len: usize) -> RcSliceableString {
Nov 06 15:41:16.242 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 15:41:16.242 INFO kablam! 
Nov 06 15:41:16.242 INFO kablam! warning: method is never used: `as_str`
Nov 06 15:41:16.242 INFO kablam!   --> src/rcstr.rs:34:2
Nov 06 15:41:16.243 INFO kablam!    |
Nov 06 15:41:16.243 INFO kablam! 34 |     pub fn as_str(&self) -> &str {
Nov 06 15:41:16.243 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 15:41:16.243 INFO kablam! 
Nov 06 15:41:16.815 INFO kablam! warning: unused variable: `parent`
Nov 06 15:41:16.815 INFO kablam!    --> src/main.rs:141:69
Nov 06 15:41:16.816 INFO kablam!     |
Nov 06 15:41:16.816 INFO kablam! 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 06 15:41:16.817 INFO kablam!     |                                                                        ^^^^^^ help: consider using `_parent` instead
Nov 06 15:41:16.818 INFO kablam!     |
Nov 06 15:41:16.818 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 06 15:41:16.819 INFO kablam! 
Nov 06 15:41:16.981 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
Nov 06 15:41:16.983 INFO kablam! su: No module specific data is present
Nov 06 15:41:17.307 INFO running `"docker" "rm" "-f" "28348632e19363326fbab0de3bb755ac79b0f0d00a3ae39646b2217cf3dc2f13"`
Nov 06 15:41:17.480 INFO blam! 28348632e19363326fbab0de3bb755ac79b0f0d00a3ae39646b2217cf3dc2f13