[INFO] cloning repository https://github.com/KentBeck/BPlusTree3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KentBeck/BPlusTree3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKentBeck%2FBPlusTree3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKentBeck%2FBPlusTree3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 41e1979418ff52bcca1d6fcc45d4b77cdae678ce
[INFO] checking KentBeck/BPlusTree3/41e1979418ff52bcca1d6fcc45d4b77cdae678ce against master#cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd for pr-145463
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKentBeck%2FBPlusTree3" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/KentBeck/BPlusTree3
[INFO] finished tweaking git repo https://github.com/KentBeck/BPlusTree3
[INFO] tweaked toml for git repo https://github.com/KentBeck/BPlusTree3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KentBeck/BPlusTree3 on toolchain cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KentBeck/BPlusTree3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 913b86a6592e3f8f2f867055cc9d3ae58f2cecbc47ca198f835f82089d2b318c
[INFO] running `Command { std: "docker" "start" "-a" "913b86a6592e3f8f2f867055cc9d3ae58f2cecbc47ca198f835f82089d2b318c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "913b86a6592e3f8f2f867055cc9d3ae58f2cecbc47ca198f835f82089d2b318c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "913b86a6592e3f8f2f867055cc9d3ae58f2cecbc47ca198f835f82089d2b318c", kill_on_drop: false }`
[INFO] [stdout] 913b86a6592e3f8f2f867055cc9d3ae58f2cecbc47ca198f835f82089d2b318c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5758b77dfe9ba2bf36dddb8fb8fb5439d7e452bd3b5f00c6f1fb09ede3bd132b
[INFO] running `Command { std: "docker" "start" "-a" "5758b77dfe9ba2bf36dddb8fb8fb5439d7e452bd3b5f00c6f1fb09ede3bd132b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking bplustree v0.9.0 (/opt/rustwide/workdir/rust)
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stdout] warning: struct `CompressedLeafNode` is never constructed
[INFO] [stdout]   --> rust/src/compressed_node.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct CompressedLeafNode<K, V> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> rust/src/compressed_node.rs:45:12
[INFO] [stdout]     |
[INFO] [stdout]  33 | / impl<K, V> CompressedLeafNode<K, V>
[INFO] [stdout]  34 | | where
[INFO] [stdout]  35 | |     K: Copy + Ord,
[INFO] [stdout]  36 | |     V: Copy,
[INFO] [stdout]     | |____________- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  45 |       pub fn new(capacity: usize) -> Self {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout]  57 |       pub fn len(&self) -> usize {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout]  63 |       pub fn capacity(&self) -> usize {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  69 |       pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  75 |       pub fn is_full(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  80 |       pub fn calculate_max_capacity() -> usize {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  88 |       unsafe fn keys_ptr(&self) -> *const K {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |       unsafe fn keys_ptr_mut(&mut self) -> *mut K {
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |       unsafe fn values_ptr(&self) -> *const V {
[INFO] [stdout]     |                 ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |       unsafe fn values_ptr_mut(&mut self) -> *mut V {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |       unsafe fn key_at(&self, index: usize) -> &K {
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |       unsafe fn value_at(&self, index: usize) -> &V {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |       unsafe fn value_at_mut(&mut self, index: usize) -> &mut V {
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 132 |       unsafe fn set_key_at(&mut self, index: usize, key: K) {
[INFO] [stdout]     |                 ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 138 |       unsafe fn set_value_at(&mut self, index: usize, value: V) {
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 147 |       fn find_key_index(&self, key: &K) -> (usize, bool) {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> rust/src/compressed_node.rs:186:12
[INFO] [stdout]     |
[INFO] [stdout] 179 | / impl<K, V> CompressedLeafNode<K, V>
[INFO] [stdout] 180 | | where
[INFO] [stdout] 181 | |     K: Copy + Ord,
[INFO] [stdout] 182 | |     V: Copy,
[INFO] [stdout]     | |____________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 186 |       pub fn insert(&mut self, key: K, value: V) -> InsertResult<K, V> {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 |       fn split_and_insert(&mut self, key: K, value: V, insert_index: usize) -> InsertResult<K, V> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 254 |       fn insert_at_index(&mut self, index: usize, key: K, value: V) {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 283 |       pub fn split(&mut self) -> CompressedLeafNode<K, V> {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 327 |       pub fn to_leaf_node(&self) -> crate::types::LeafNode<K, V> {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 348 |       pub fn get(&self, key: &K) -> Option<&V> {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 359 |       pub fn get_mut(&mut self, key: &K) -> Option<&mut V> {
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 371 |       pub fn remove(&mut self, key: &K) -> (Option<V>, bool) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 405 |       pub fn is_underfull(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 410 |       pub fn can_donate(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 415 |       pub fn min_keys(&self) -> usize {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 422 |       pub fn next(&self) -> NodeId {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 427 |       pub fn set_next(&mut self, next: NodeId) {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 441 |       pub fn keys_get(&self, index: usize) -> Option<&K> {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 461 |       pub fn value_get(&self, index: usize) -> Option<&V> {
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 482 |       pub fn values_put(&mut self, index: usize, value: V) -> Option<V> {
[INFO] [stdout]     |              ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 503 |       pub fn keys(&self) -> Vec<K> {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 522 |       pub fn values(&self) -> Vec<V> {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 544 |       pub fn values_mut(&mut self) -> Vec<V> {
[INFO] [stdout]     |              ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 555 |       pub fn needs_split(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 560 |       pub fn extract_all(&mut self) -> (Vec<K>, Vec<V>, NodeId) {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 586 |       pub fn borrow_last(&mut self) -> Option<(K, V)> {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 603 |       pub fn borrow_first(&mut self) -> Option<(K, V)> {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 635 |       pub fn accept_from_left(&mut self, key: K, value: V) {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 641 |       pub fn accept_from_right(&mut self, key: K, value: V) {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 648 |       pub fn merge_from(&mut self, other: &mut CompressedLeafNode<K, V>) -> NodeId {
[INFO] [stdout]     |              ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 689 |       pub fn get_key(&self, index: usize) -> Option<&K> {
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 698 |       pub fn first_key(&self) -> Option<&K> {
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 707 |       pub fn last_key(&self) -> Option<&K> {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 716 |       pub fn keys_iter(&self) -> impl Iterator<Item = &K> {
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 721 |       pub fn collect_keys(&self) -> Vec<K> {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 732 |       pub fn get_value(&self, index: usize) -> Option<&V> {
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 741 |       pub fn get_value_mut(&mut self, index: usize) -> Option<&mut V> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 750 |       pub fn first_value(&self) -> Option<&V> {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 759 |       pub fn last_value(&self) -> Option<&V> {
[INFO] [stdout]     |              ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 768 |       pub fn first_value_mut(&mut self) -> Option<&mut V> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 777 |       pub fn last_value_mut(&mut self) -> Option<&mut V> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 786 |       pub fn values_iter(&self) -> impl Iterator<Item = &V> {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 792 |       pub fn values_iter_mut(&mut self) -> ValuesMutIter<K, V> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 800 |       pub fn collect_values(&self) -> Vec<V> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 811 |       pub fn get_pair(&self, index: usize) -> Option<(&K, &V)> {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 820 |       pub fn get_pair_mut(&mut self, index: usize) -> Option<(&K, &mut V)> {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 833 |       pub fn first_pair(&self) -> Option<(&K, &V)> {
[INFO] [stdout]     |              ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 842 |       pub fn last_pair(&self) -> Option<(&K, &V)> {
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 852 |       pub fn first_pair_mut(&mut self) -> Option<(&K, &mut V)> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 865 |       pub fn last_pair_mut(&mut self) -> Option<(&K, &mut V)> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 879 |       pub fn collect_pairs(&self) -> Vec<(K, V)> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 888 |       pub fn iter(&self) -> CompressedLeafIter<K, V> {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CompressedLeafIter` is never constructed
[INFO] [stdout]    --> rust/src/compressed_node.rs:961:12
[INFO] [stdout]     |
[INFO] [stdout] 961 | pub struct CompressedLeafIter<'a, K, V> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValuesMutIter` is never constructed
[INFO] [stdout]    --> rust/src/compressed_node.rs:987:12
[INFO] [stdout]     |
[INFO] [stdout] 987 | pub struct ValuesMutIter<'a, K, V> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `FastLeafNode` is never used
[INFO] [stdout]    --> rust/src/types.rs:104:10
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub type FastLeafNode<K, V> = crate::compressed_node::CompressedLeafNode<K, V>;
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `FlexibleLeafNode` is never used
[INFO] [stdout]    --> rust/src/types.rs:107:10
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub type FlexibleLeafNode<K, V> = LeafNode<K, V>;
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OptimalLeafNode` is never used
[INFO] [stdout]    --> rust/src/types.rs:111:11
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub trait OptimalLeafNode<K, V> {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> rust/src/compressed_node.rs:792:28
[INFO] [stdout]     |
[INFO] [stdout] 792 |     pub fn values_iter_mut(&mut self) -> ValuesMutIter<K, V> {
[INFO] [stdout]     |                            ^^^^^^^^^     ------------------- the same lifetime is hidden here
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 792 |     pub fn values_iter_mut(&mut self) -> ValuesMutIter<'_, K, V> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> rust/src/compressed_node.rs:888:17
[INFO] [stdout]     |
[INFO] [stdout] 888 |     pub fn iter(&self) -> CompressedLeafIter<K, V> {
[INFO] [stdout]     |                 ^^^^^     ------------------------ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 888 |     pub fn iter(&self) -> CompressedLeafIter<'_, K, V> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> rust/src/iteration.rs:58:18
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn items(&self) -> ItemIterator<K, V> {
[INFO] [stdout]    |                  ^^^^^     ------------------ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn items(&self) -> ItemIterator<'_, K, V> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> rust/src/iteration.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn items_fast(&self) -> FastItemIterator<K, V> {
[INFO] [stdout]    |                       ^^^^^     ---------------------- the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn items_fast(&self) -> FastItemIterator<'_, K, V> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> rust/src/iteration.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn keys(&self) -> KeyIterator<K, V> {
[INFO] [stdout]    |                 ^^^^^     ----------------- the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn keys(&self) -> KeyIterator<'_, K, V> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> rust/src/iteration.rs:78:19
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn values(&self) -> ValueIterator<K, V> {
[INFO] [stdout]    |                   ^^^^^     ------------------- the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn values(&self) -> ValueIterator<'_, K, V> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking clap_builder v4.5.39
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> rust/src/bin/profile_functions.rs:59:18
[INFO] [stdout]    |
[INFO] [stdout] 59 |         .map(|i| (tree_size as i32 + i as i32 + 1000000))
[INFO] [stdout]    |                  ^                                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -         .map(|i| (tree_size as i32 + i as i32 + 1000000))
[INFO] [stdout] 59 +         .map(|i| tree_size as i32 + i as i32 + 1000000)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clap v4.5.39
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: methods `get_mut` and `get_unchecked_mut` are never used
[INFO] [stdout]   --> rust/examples/hybrid_approach_design.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl<T> CompactArena<T> {
[INFO] [stdout]    | ----------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn get_mut(&mut self, id: CompactId) -> Option<&mut T> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     unsafe fn get_unchecked_mut(&mut self, id: CompactId) -> &mut T {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `capacity` is never read
[INFO] [stdout]   --> rust/examples/hybrid_approach_design.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | struct HybridNode<K, V> {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 73 |     capacity: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HybridNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]   --> rust/examples/hybrid_approach_design.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<K: Ord + Clone, V: Clone> HybridNode<K, V> {
[INFO] [stdout]    | ----------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 96 |     fn get(&self, key: &K) -> Option<&V> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]    --> rust/examples/hybrid_approach_design.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 106 | impl<K: Ord + Clone, V: Clone> HybridTree<K, V> {
[INFO] [stdout]     | ----------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 127 |     fn get(&self, key: &K) -> Option<&V> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CachedArena` is never constructed
[INFO] [stdout]    --> rust/examples/hybrid_approach_design.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 166 | struct CachedArena<T> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `allocate`, `get`, and `get_mut` are never used
[INFO] [stdout]    --> rust/examples/hybrid_approach_design.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | impl<T> CachedArena<T> {
[INFO] [stdout]     | ---------------------- associated items in this implementation
[INFO] [stdout] 174 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     fn allocate(&mut self, item: T) -> usize {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     fn get(&self, index: usize) -> Option<&T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 206 |     fn get_mut(&mut self, index: usize) -> Option<&mut T> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> rust/examples/hybrid_approach_design.rs:131:13
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn iter(&self) -> HybridIterator<K, V> {
[INFO] [stdout]     |             ^^^^^     -------------------- the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn iter(&self) -> HybridIterator<'_, K, V> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `get` and `deallocate` are never used
[INFO] [stdout]   --> rust/examples/unsafe_pointer_approach.rs:44:15
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<K: Ord + Clone, V: Clone> UnsafeNode<K, V> {
[INFO] [stdout]    | ----------------------------------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     unsafe fn get(&self, key: &K) -> Option<&V> {
[INFO] [stdout]    |               ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     unsafe fn deallocate(ptr: NonNull<Self>) {
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]   --> rust/examples/unsafe_pointer_approach.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl<K: Ord + Clone, V: Clone> UnsafeBPlusTree<K, V> {
[INFO] [stdout]    | ---------------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 96 |     fn get(&self, key: &K) -> Option<&V> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_mut` and `get_unchecked_mut` are never used
[INFO] [stdout]    --> rust/examples/unsafe_pointer_approach.rs:187:8
[INFO] [stdout]     |
[INFO] [stdout] 164 | impl<T> CompactArena<T> {
[INFO] [stdout]     | ----------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 187 |     fn get_mut(&mut self, index: usize) -> Option<&mut T> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 196 |     unsafe fn get_unchecked_mut(&mut self, index: usize) -> &mut T {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> rust/src/bin/profile_functions.rs:59:18
[INFO] [stdout]    |
[INFO] [stdout] 59 |         .map(|i| (tree_size as i32 + i as i32 + 1000000))
[INFO] [stdout]    |                  ^                                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -         .map(|i| (tree_size as i32 + i as i32 + 1000000))
[INFO] [stdout] 59 +         .map(|i| tree_size as i32 + i as i32 + 1000000)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `next` is never read
[INFO] [stdout]   --> rust/examples/memory_alternatives_analysis.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct BoxNode<K, V> {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     next: Option<Box<BoxNode<K, V>>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BoxNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `next` and `parent` are never read
[INFO] [stdout]   --> rust/examples/memory_alternatives_analysis.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct RcNode<K, V> {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 46 |     next: Option<Rc<RefCell<RcNode<K, V>>>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 47 |     parent: Option<Weak<RefCell<RcNode<K, V>>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RcNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_mut` is never used
[INFO] [stdout]    --> rust/examples/memory_alternatives_analysis.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout]  92 | impl<T> GenerationalArena<T> {
[INFO] [stdout]     | ---------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn get_mut(&mut self, id: GenerationalIndex) -> Option<&mut T> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> rust/examples/smart_pointer_solutions.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct RcRefCellNode<K, V> {
[INFO] [stdout]    |        ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     parent: Option<Weak<RefCell<RcRefCellNode<K, V>>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RcRefCellNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get` is never used
[INFO] [stdout]   --> rust/examples/smart_pointer_solutions.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl<K: Ord + Clone, V: Clone> RcRefCellNode<K, V> {
[INFO] [stdout]    | -------------------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn get(node: &Rc<RefCell<Self>>, key: &K) -> Result<Option<V>, String> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]   --> rust/examples/smart_pointer_solutions.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl<K: Ord + Clone, V: Clone> RcRefCellTree<K, V> {
[INFO] [stdout]    | -------------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 84 |     fn get(&self, key: &K) -> Result<Option<V>, String> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `next` is never read
[INFO] [stdout]    --> rust/examples/smart_pointer_solutions.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 138 | struct ArcMutexNode<K, V> {
[INFO] [stdout]     |        ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 141 |     next: Option<Arc<Mutex<ArcMutexNode<K, V>>>>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ArcMutexNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get` is never used
[INFO] [stdout]    --> rust/examples/smart_pointer_solutions.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 145 | impl<K: Ord + Clone, V: Clone> ArcMutexNode<K, V> {
[INFO] [stdout]     | ------------------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 171 |     fn get(node: &Arc<Mutex<Self>>, key: &K) -> Result<Option<V>, String> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HybridNode` is never constructed
[INFO] [stdout]    --> rust/examples/smart_pointer_solutions.rs:180:8
[INFO] [stdout]     |
[INFO] [stdout] 180 | struct HybridNode<K, V> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HybridArena` is never constructed
[INFO] [stdout]    --> rust/examples/smart_pointer_solutions.rs:187:8
[INFO] [stdout]     |
[INFO] [stdout] 187 | struct HybridArena<K, V> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `allocate`, and `get` are never used
[INFO] [stdout]    --> rust/examples/smart_pointer_solutions.rs:193:8
[INFO] [stdout]     |
[INFO] [stdout] 192 | impl<K: Ord + Clone, V: Clone> HybridArena<K, V> {
[INFO] [stdout]     | ------------------------------------------------ associated items in this implementation
[INFO] [stdout] 193 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     fn allocate(&mut self, capacity: usize) -> usize {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 |     fn get(&self, index: usize) -> Option<&Rc<HybridNode<K, V>>> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> rust/src/compressed_node.rs:1326:13
[INFO] [stdout]      |
[INFO] [stdout] 1326 |         let mut leaf = CompressedLeafNode::<i32, i32>::new(10);
[INFO] [stdout]      |             ----^^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_underfull`
[INFO] [stdout]     --> rust/src/compressed_node.rs:1656:29
[INFO] [stdout]      |
[INFO] [stdout] 1656 |         let (removed_value, is_underfull) = leaf.remove(&10);
[INFO] [stdout]      |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_underfull`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_underfull`
[INFO] [stdout]     --> rust/src/compressed_node.rs:1661:29
[INFO] [stdout]      |
[INFO] [stdout] 1661 |         let (removed_value, is_underfull) = leaf.remove(&50);
[INFO] [stdout]      |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_underfull`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_underfull`
[INFO] [stdout]     --> rust/src/compressed_node.rs:1726:29
[INFO] [stdout]      |
[INFO] [stdout] 1726 |         let (removed_value, is_underfull) = leaf.remove(&2);
[INFO] [stdout]      |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_underfull`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> rust/src/compressed_node.rs:1922:13
[INFO] [stdout]      |
[INFO] [stdout] 1922 |         let mut right_node = leaf.split();
[INFO] [stdout]      |             ----^^^^^^^^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `FastLeafNode` is never used
[INFO] [stdout]    --> rust/src/types.rs:104:10
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub type FastLeafNode<K, V> = crate::compressed_node::CompressedLeafNode<K, V>;
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `FlexibleLeafNode` is never used
[INFO] [stdout]    --> rust/src/types.rs:107:10
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub type FlexibleLeafNode<K, V> = LeafNode<K, V>;
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OptimalLeafNode` is never used
[INFO] [stdout]    --> rust/src/types.rs:111:11
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub trait OptimalLeafNode<K, V> {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> rust/src/compressed_node.rs:792:28
[INFO] [stdout]     |
[INFO] [stdout] 792 |     pub fn values_iter_mut(&mut self) -> ValuesMutIter<K, V> {
[INFO] [stdout]     |                            ^^^^^^^^^     ------------------- the same lifetime is hidden here
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 792 |     pub fn values_iter_mut(&mut self) -> ValuesMutIter<'_, K, V> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> rust/src/compressed_node.rs:888:17
[INFO] [stdout]     |
[INFO] [stdout] 888 |     pub fn iter(&self) -> CompressedLeafIter<K, V> {
[INFO] [stdout]     |                 ^^^^^     ------------------------ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 888 |     pub fn iter(&self) -> CompressedLeafIter<'_, K, V> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> rust/src/iteration.rs:58:18
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn items(&self) -> ItemIterator<K, V> {
[INFO] [stdout]    |                  ^^^^^     ------------------ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn items(&self) -> ItemIterator<'_, K, V> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> rust/src/iteration.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn items_fast(&self) -> FastItemIterator<K, V> {
[INFO] [stdout]    |                       ^^^^^     ---------------------- the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn items_fast(&self) -> FastItemIterator<'_, K, V> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> rust/src/iteration.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn keys(&self) -> KeyIterator<K, V> {
[INFO] [stdout]    |                 ^^^^^     ----------------- the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn keys(&self) -> KeyIterator<'_, K, V> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> rust/src/iteration.rs:78:19
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn values(&self) -> ValueIterator<K, V> {
[INFO] [stdout]    |                   ^^^^^     ------------------- the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn values(&self) -> ValueIterator<'_, K, V> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 35.86s
[INFO] running `Command { std: "docker" "inspect" "5758b77dfe9ba2bf36dddb8fb8fb5439d7e452bd3b5f00c6f1fb09ede3bd132b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5758b77dfe9ba2bf36dddb8fb8fb5439d7e452bd3b5f00c6f1fb09ede3bd132b", kill_on_drop: false }`
[INFO] [stdout] 5758b77dfe9ba2bf36dddb8fb8fb5439d7e452bd3b5f00c6f1fb09ede3bd132b