Oct 31 22:48:03.921 INFO checking raiker/persistent-rope against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Oct 31 22:48:03.922 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-2/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-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"`
Oct 31 22:48:04.357 INFO blam! bc441b8b37b2635106bde7b6d58f5fa4357e99b2b9e4f815ea6d5ffdc30295a1
Oct 31 22:48:04.358 INFO running `"docker" "start" "-a" "bc441b8b37b2635106bde7b6d58f5fa4357e99b2b9e4f815ea6d5ffdc30295a1"`
Oct 31 22:48:05.909 INFO kablam! usermod: no changes
Oct 31 22:48:06.004 INFO kablam!     Checking persistent-rope v0.1.0 (/source)
Oct 31 22:48:06.628 INFO kablam! warning: unused variable: `parent`
Oct 31 22:48:06.628 INFO kablam!    --> src/main.rs:141:69
Oct 31 22:48:06.628 INFO kablam!     |
Oct 31 22:48:06.628 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>{
Oct 31 22:48:06.628 INFO kablam!     |                                                                        ^^^^^^ help: consider using `_parent` instead
Oct 31 22:48:06.628 INFO kablam!     |
Oct 31 22:48:06.628 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 31 22:48:06.628 INFO kablam! 
Oct 31 22:48:06.644 INFO kablam! warning: struct is never constructed: `RcSliceableString`
Oct 31 22:48:06.644 INFO kablam!  --> src/rcstr.rs:3:1
Oct 31 22:48:06.644 INFO kablam!   |
Oct 31 22:48:06.644 INFO kablam! 3 | pub struct RcSliceableString {
Oct 31 22:48:06.644 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:48:06.644 INFO kablam!   |
Oct 31 22:48:06.644 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 31 22:48:06.644 INFO kablam! 
Oct 31 22:48:06.644 INFO kablam! warning: method is never used: `new`
Oct 31 22:48:06.644 INFO kablam!   --> src/rcstr.rs:10:2
Oct 31 22:48:06.644 INFO kablam!    |
Oct 31 22:48:06.644 INFO kablam! 10 |     pub fn new(s: String) -> RcSliceableString {
Oct 31 22:48:06.644 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:48:06.644 INFO kablam! 
Oct 31 22:48:06.646 INFO kablam! warning: method is never used: `slice`
Oct 31 22:48:06.646 INFO kablam!   --> src/rcstr.rs:19:2
Oct 31 22:48:06.646 INFO kablam!    |
Oct 31 22:48:06.646 INFO kablam! 19 |     pub fn slice(&self, start: usize, len: usize) -> RcSliceableString {
Oct 31 22:48:06.646 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:48:06.646 INFO kablam! 
Oct 31 22:48:06.646 INFO kablam! warning: method is never used: `as_str`
Oct 31 22:48:06.646 INFO kablam!   --> src/rcstr.rs:34:2
Oct 31 22:48:06.646 INFO kablam!    |
Oct 31 22:48:06.646 INFO kablam! 34 |     pub fn as_str(&self) -> &str {
Oct 31 22:48:06.646 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:48:06.646 INFO kablam! 
Oct 31 22:48:07.192 INFO kablam! warning: unused variable: `parent`
Oct 31 22:48:07.192 INFO kablam!    --> src/main.rs:141:69
Oct 31 22:48:07.192 INFO kablam!     |
Oct 31 22:48:07.192 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>{
Oct 31 22:48:07.192 INFO kablam!     |                                                                        ^^^^^^ help: consider using `_parent` instead
Oct 31 22:48:07.192 INFO kablam!     |
Oct 31 22:48:07.192 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 31 22:48:07.192 INFO kablam! 
Oct 31 22:48:07.444 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
Oct 31 22:48:07.444 INFO kablam! su: No module specific data is present
Oct 31 22:48:08.333 INFO running `"docker" "rm" "-f" "bc441b8b37b2635106bde7b6d58f5fa4357e99b2b9e4f815ea6d5ffdc30295a1"`
Oct 31 22:48:08.664 INFO blam! bc441b8b37b2635106bde7b6d58f5fa4357e99b2b9e4f815ea6d5ffdc30295a1