Nov 02 16:31:49.528 INFO checking cliffcrosland/search_index against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 02 16:31:49.528 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-2/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/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 +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-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 02 16:31:49.995 INFO blam! 054ee9460c32796cc017cf721707007de8d32243adfb15f3de3d4eed854c4d2c
Nov 02 16:31:49.997 INFO running `"docker" "start" "-a" "054ee9460c32796cc017cf721707007de8d32243adfb15f3de3d4eed854c4d2c"`
Nov 02 16:31:51.620 INFO kablam! usermod: no changes
Nov 02 16:31:51.708 INFO kablam!     Checking search_index v0.1.0 (/source)
Nov 02 16:31:52.951 INFO kablam! warning: field is never used: `next_free`
Nov 02 16:31:52.951 INFO kablam!   --> src/generational_arena.rs:16:5
Nov 02 16:31:52.951 INFO kablam!    |
Nov 02 16:31:52.951 INFO kablam! 16 |     next_free: Option<usize>,
Nov 02 16:31:52.951 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.951 INFO kablam!    |
Nov 02 16:31:52.951 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 02 16:31:52.951 INFO kablam! 
Nov 02 16:31:52.951 INFO kablam! warning: field is never used: `len`
Nov 02 16:31:52.951 INFO kablam!   --> src/generational_arena.rs:19:5
Nov 02 16:31:52.951 INFO kablam!    |
Nov 02 16:31:52.951 INFO kablam! 19 |     len: usize,
Nov 02 16:31:52.951 INFO kablam!    |     ^^^^^^^^^^
Nov 02 16:31:52.951 INFO kablam! 
Nov 02 16:31:52.951 INFO kablam! warning: struct is never constructed: `Slot`
Nov 02 16:31:52.951 INFO kablam!   --> src/generational_arena.rs:34:1
Nov 02 16:31:52.951 INFO kablam!    |
Nov 02 16:31:52.952 INFO kablam! 34 | struct Slot<T> {
Nov 02 16:31:52.952 INFO kablam!    | ^^^^^^^^^^^^^^
Nov 02 16:31:52.952 INFO kablam! 
Nov 02 16:31:52.952 INFO kablam! warning: method is never used: `new`
Nov 02 16:31:52.952 INFO kablam!   --> src/generational_arena.rs:41:5
Nov 02 16:31:52.952 INFO kablam!    |
Nov 02 16:31:52.952 INFO kablam! 41 |     pub fn new() -> GenerationalArena<T> {
Nov 02 16:31:52.952 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.952 INFO kablam! 
Nov 02 16:31:52.952 INFO kablam! warning: method is never used: `insert`
Nov 02 16:31:52.952 INFO kablam!   --> src/generational_arena.rs:50:5
Nov 02 16:31:52.952 INFO kablam!    |
Nov 02 16:31:52.952 INFO kablam! 50 |     pub fn insert(&mut self, value: T) -> GenerationalId {
Nov 02 16:31:52.952 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.952 INFO kablam! 
Nov 02 16:31:52.952 INFO kablam! warning: method is never used: `get_mut`
Nov 02 16:31:52.952 INFO kablam!   --> src/generational_arena.rs:91:5
Nov 02 16:31:52.952 INFO kablam!    |
Nov 02 16:31:52.952 INFO kablam! 91 |     pub fn get_mut(&mut self, id: &GenerationalId) -> Option<&mut T> {
Nov 02 16:31:52.952 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.952 INFO kablam! 
Nov 02 16:31:52.952 INFO kablam! warning: method is never used: `remove`
Nov 02 16:31:52.952 INFO kablam!    --> src/generational_arena.rs:103:5
Nov 02 16:31:52.952 INFO kablam!     |
Nov 02 16:31:52.952 INFO kablam! 103 |     pub fn remove(&mut self, id: &GenerationalId) -> bool {
Nov 02 16:31:52.952 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.952 INFO kablam! 
Nov 02 16:31:52.952 INFO kablam! warning: method is never used: `len`
Nov 02 16:31:52.952 INFO kablam!    --> src/generational_arena.rs:121:5
Nov 02 16:31:52.952 INFO kablam!     |
Nov 02 16:31:52.952 INFO kablam! 121 |     pub fn len(&self) -> usize { self.len }
Nov 02 16:31:52.952 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.952 INFO kablam! 
Nov 02 16:31:52.952 INFO kablam! warning: method is never used: `capacity`
Nov 02 16:31:52.952 INFO kablam!    --> src/generational_arena.rs:124:5
Nov 02 16:31:52.952 INFO kablam!     |
Nov 02 16:31:52.952 INFO kablam! 124 |     pub fn capacity(&self) -> usize { self.arena.len() }
Nov 02 16:31:52.952 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.952 INFO kablam! 
Nov 02 16:31:52.952 INFO kablam! warning: field is never used: `value`
Nov 02 16:31:52.952 INFO kablam!   --> src/skip_list.rs:30:5
Nov 02 16:31:52.952 INFO kablam!    |
Nov 02 16:31:52.952 INFO kablam! 30 |     value: V,
Nov 02 16:31:52.952 INFO kablam!    |     ^^^^^^^^
Nov 02 16:31:52.952 INFO kablam! 
Nov 02 16:31:52.952 INFO kablam! warning: struct is never constructed: `SkipListIterator`
Nov 02 16:31:52.952 INFO kablam!   --> src/skip_list.rs:34:1
Nov 02 16:31:52.952 INFO kablam!    |
Nov 02 16:31:52.952 INFO kablam! 34 | pub struct SkipListIterator<'a, K: 'a, V: 'a> where K: Key {
Nov 02 16:31:52.952 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.952 INFO kablam! 
Nov 02 16:31:52.968 INFO kablam! warning: struct is never constructed: `SkipListPrefixIterator`
Nov 02 16:31:52.968 INFO kablam!   --> src/skip_list.rs:41:1
Nov 02 16:31:52.968 INFO kablam!    |
Nov 02 16:31:52.968 INFO kablam! 41 | pub struct SkipListPrefixIterator<'a, K: 'a, V: 'a> where K: Key {
Nov 02 16:31:52.968 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.968 INFO kablam! 
Nov 02 16:31:52.968 INFO kablam! warning: struct is never constructed: `Node`
Nov 02 16:31:52.968 INFO kablam!   --> src/skip_list.rs:92:1
Nov 02 16:31:52.968 INFO kablam!    |
Nov 02 16:31:52.968 INFO kablam! 92 | struct Node<K, V> where K: Key {
Nov 02 16:31:52.968 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.968 INFO kablam! 
Nov 02 16:31:52.968 INFO kablam! warning: type alias is never used: `NodeId`
Nov 02 16:31:52.968 INFO kablam!   --> src/skip_list.rs:97:1
Nov 02 16:31:52.968 INFO kablam!    |
Nov 02 16:31:52.968 INFO kablam! 97 | type NodeId = GenerationalId;
Nov 02 16:31:52.968 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.968 INFO kablam! 
Nov 02 16:31:52.968 INFO kablam! warning: struct is never constructed: `SearchParams`
Nov 02 16:31:52.968 INFO kablam!    --> src/skip_list.rs:101:1
Nov 02 16:31:52.968 INFO kablam!     |
Nov 02 16:31:52.968 INFO kablam! 101 | struct SearchParams<'a, K: 'a> where K: Key {
Nov 02 16:31:52.968 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.968 INFO kablam! 
Nov 02 16:31:52.968 INFO kablam! warning: method is never used: `new`
Nov 02 16:31:52.968 INFO kablam!    --> src/skip_list.rs:113:5
Nov 02 16:31:52.968 INFO kablam!     |
Nov 02 16:31:52.968 INFO kablam! 113 |     pub fn new(target: &'a K) -> SearchParams<'a, K> {
Nov 02 16:31:52.968 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.968 INFO kablam! 
Nov 02 16:31:52.968 INFO kablam! warning: method is never used: `record_traversal`
Nov 02 16:31:52.968 INFO kablam!    --> src/skip_list.rs:121:5
Nov 02 16:31:52.968 INFO kablam!     |
Nov 02 16:31:52.968 INFO kablam! 121 |     pub fn record_traversal(mut self) -> SearchParams<'a, K> {
Nov 02 16:31:52.968 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.968 INFO kablam! 
Nov 02 16:31:52.968 INFO kablam! warning: method is never used: `use_prefix_match`
Nov 02 16:31:52.968 INFO kablam!    --> src/skip_list.rs:126:5
Nov 02 16:31:52.968 INFO kablam!     |
Nov 02 16:31:52.968 INFO kablam! 126 |     pub fn use_prefix_match(mut self) -> SearchParams<'a, K> {
Nov 02 16:31:52.968 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.968 INFO kablam! 
Nov 02 16:31:52.968 INFO kablam! warning: struct is never constructed: `SearchResult`
Nov 02 16:31:52.968 INFO kablam!    --> src/skip_list.rs:135:1
Nov 02 16:31:52.968 INFO kablam!     |
Nov 02 16:31:52.968 INFO kablam! 135 | struct SearchResult {
Nov 02 16:31:52.968 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:52.969 INFO kablam! warning: method is never used: `new`
Nov 02 16:31:52.969 INFO kablam!    --> src/skip_list.rs:153:5
Nov 02 16:31:52.969 INFO kablam!     |
Nov 02 16:31:52.969 INFO kablam! 153 |     pub fn new() -> SkipList<K, V> {
Nov 02 16:31:52.969 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:52.969 INFO kablam! warning: method is never used: `len`
Nov 02 16:31:52.969 INFO kablam!    --> src/skip_list.rs:163:5
Nov 02 16:31:52.969 INFO kablam!     |
Nov 02 16:31:52.969 INFO kablam! 163 |     pub fn len(&self) -> usize { 
Nov 02 16:31:52.969 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:52.969 INFO kablam! warning: method is never used: `set`
Nov 02 16:31:52.969 INFO kablam!    --> src/skip_list.rs:169:5
Nov 02 16:31:52.969 INFO kablam!     |
Nov 02 16:31:52.969 INFO kablam! 169 |     pub fn set(&mut self, key: &K, value: V) {
Nov 02 16:31:52.969 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:52.969 INFO kablam! warning: method is never used: `get`
Nov 02 16:31:52.969 INFO kablam!    --> src/skip_list.rs:224:5
Nov 02 16:31:52.969 INFO kablam!     |
Nov 02 16:31:52.969 INFO kablam! 224 |     pub fn get(&self, key: &K) -> Option<&V> {
Nov 02 16:31:52.969 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:52.969 INFO kablam! warning: method is never used: `get_mut`
Nov 02 16:31:52.969 INFO kablam!    --> src/skip_list.rs:237:5
Nov 02 16:31:52.969 INFO kablam!     |
Nov 02 16:31:52.969 INFO kablam! 237 |     pub fn get_mut(&mut self, key: &K) -> Option<&mut V> {
Nov 02 16:31:52.969 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:52.969 INFO kablam! warning: method is never used: `remove`
Nov 02 16:31:52.969 INFO kablam!    --> src/skip_list.rs:251:5
Nov 02 16:31:52.969 INFO kablam!     |
Nov 02 16:31:52.969 INFO kablam! 251 |     pub fn remove(&mut self, key: &K) -> bool {
Nov 02 16:31:52.969 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:52.969 INFO kablam! warning: method is never used: `iter`
Nov 02 16:31:52.969 INFO kablam!    --> src/skip_list.rs:281:5
Nov 02 16:31:52.969 INFO kablam!     |
Nov 02 16:31:52.969 INFO kablam! 281 |     pub fn iter(&self) -> SkipListIterator<K, V> {
Nov 02 16:31:52.969 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:52.969 INFO kablam! warning: method is never used: `iter_at`
Nov 02 16:31:52.969 INFO kablam!    --> src/skip_list.rs:287:5
Nov 02 16:31:52.969 INFO kablam!     |
Nov 02 16:31:52.969 INFO kablam! 287 |     pub fn iter_at(&self, key: &K) -> SkipListIterator<K, V> {
Nov 02 16:31:52.969 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:52.969 INFO kablam! warning: method is never used: `prefix_iter_at`
Nov 02 16:31:52.969 INFO kablam!    --> src/skip_list.rs:297:5
Nov 02 16:31:52.969 INFO kablam!     |
Nov 02 16:31:52.969 INFO kablam! 297 |     pub fn prefix_iter_at(&self, prefix: &K) -> SkipListPrefixIterator<K, V> {
Nov 02 16:31:52.969 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:52.969 INFO kablam! warning: method is never used: `iterator`
Nov 02 16:31:52.969 INFO kablam!    --> src/skip_list.rs:324:5
Nov 02 16:31:52.969 INFO kablam!     |
Nov 02 16:31:52.969 INFO kablam! 324 |     fn iterator(&self, cur: Option<NodeId>) -> SkipListIterator<K, V> {
Nov 02 16:31:52.969 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:52.969 INFO kablam! warning: method is never used: `prefix_iterator`
Nov 02 16:31:52.969 INFO kablam!    --> src/skip_list.rs:331:5
Nov 02 16:31:52.969 INFO kablam!     |
Nov 02 16:31:52.969 INFO kablam! 331 |     fn prefix_iterator(&self, prefix: K, cur: Option<NodeId>) -> SkipListPrefixIterator<K, V> {
Nov 02 16:31:52.969 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:52.969 INFO kablam! warning: method is never used: `search`
Nov 02 16:31:52.969 INFO kablam!    --> src/skip_list.rs:339:5
Nov 02 16:31:52.969 INFO kablam!     |
Nov 02 16:31:52.969 INFO kablam! 339 |     fn search(&self, params: &SearchParams<K>) -> SearchResult {
Nov 02 16:31:52.969 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 16:31:52.969 INFO kablam! 
Nov 02 16:31:53.341 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
Nov 02 16:31:53.344 INFO kablam! su: No module specific data is present
Nov 02 16:31:54.362 INFO running `"docker" "rm" "-f" "054ee9460c32796cc017cf721707007de8d32243adfb15f3de3d4eed854c4d2c"`
Nov 02 16:31:54.616 INFO blam! 054ee9460c32796cc017cf721707007de8d32243adfb15f3de3d4eed854c4d2c