warning: this function has too many arguments (9/7)
   --> grovedb/src/operations/proof/generate.rs:487:5
    |
487 | /     fn generate_and_store_merk_proof<'a, S, B>(
488 | |         &self,
489 | |         path: &SubtreePath<B>,
490 | |         subtree: &'a Merk<S>,
...   |
496 | |         key: &[u8],
497 | |     ) -> CostResult<(Option<u16>, Option<u16>), Error>
    | |______________________________________________________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments

warning: this function has too many arguments (8/7)
   --> grovedb/src/operations/proof/generate.rs:181:5
    |
181 | /     fn prove_subqueries(
182 | |         &self,
183 | |         proofs: &mut Vec<u8>,
184 | |         path: Vec<&[u8]>,
...   |
189 | |         is_verbose: bool,
190 | |     ) -> CostResult<(), Error> {
    | |______________________________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments

warning: this expression creates a reference which is immediately dereferenced by the compiler
   --> grovedb/src/operations/delete/mod.rs:524:25
    |
524 |                         &batch,
    |                         ^^^^^^ help: change this to: `batch`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow

warning: this expression creates a reference which is immediately dereferenced by the compiler
   --> grovedb/src/operations/delete/mod.rs:272:13
    |
272 |             &batch,
    |             ^^^^^^ help: change this to: `batch`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
    = note: `#[warn(clippy::needless_borrow)]` on by default

warning: casting to the same type is unnecessary (`u16` -> `u16`)
  --> grovedb/src/operations/delete/worst_case.rs:71:46
   |
71 |             for height in (stop_path_height..(path_len as u16)).rev() {
   |                                              ^^^^^^^^^^^^^^^^^ help: try: `path_len`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast

warning: casting to the same type is unnecessary (`u16` -> `u16`)
  --> grovedb/src/operations/delete/average_case.rs:76:46
   |
76 |             for height in (stop_path_height..(path_len as u16)).rev() {
   |                                              ^^^^^^^^^^^^^^^^^ help: try: `path_len`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
   = note: `#[warn(clippy::unnecessary_cast)]` on by default

warning: this function has too many arguments (12/7)
   --> grovedb/src/element/query.rs:535:5
    |
535 | /     fn query_item(
536 | |         storage: &RocksDbStorage,
537 | |         item: &QueryItem,
538 | |         results: &mut Vec<QueryResultElement>,
...   |
547 | |         add_element_function: fn(PathQueryPushArgs) -> CostResult<(), Error>,
548 | |     ) -> CostResult<(), Error> {
    | |______________________________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments

warning: this function has too many arguments (8/7)
   --> grovedb/src/element/query.rs:138:5
    |
138 | /     pub fn get_query_apply_function(
139 | |         storage: &RocksDbStorage,
140 | |         path: &[&[u8]],
141 | |         sized_query: &SizedQuery,
...   |
146 | |         add_element_function: fn(PathQueryPushArgs) -> CostResult<(), Error>,
147 | |     ) -> CostResult<(QueryResultElements, u16), Error> {
    | |______________________________________________________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
    = note: `#[warn(clippy::too_many_arguments)]` on by default

warning: implicitly performing saturating subtraction
    --> grovedb/src/batch/mod.rs:1570:13
     |
1570 | /             if current_level > 0 {
1571 | |                 current_level -= 1;
1572 | |             }
     | |_____________^ help: try: `current_level = current_level.saturating_sub(1);`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#implicit_saturating_sub
     = note: `#[warn(clippy::implicit_saturating_sub)]` on by default

warning: iterating on a map's keys
   --> grovedb/src/batch/estimated_costs/average_case_costs.rs:235:33
    |
235 |                       let paths = self
    |  _________________________________^
236 | |                         .paths
237 | |                         .iter()
238 | |                         .map(|(k, _v)| k.0.iter().map(|k| hex::encode(k.as_slice())).join("/"))
    | |_______________________________________________________________________________________________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_kv_map
help: try
    |
235 ~                     let paths = self
236 +                         .paths.keys().map(|k| k.0.iter().map(|k| hex::encode(k.as_slice())).join("/"))
    |

warning: iterating on a map's keys
   --> grovedb/src/batch/estimated_costs/average_case_costs.rs:213:29
    |
213 |                   let paths = self
    |  _____________________________^
214 | |                     .paths
215 | |                     .iter()
216 | |                     .map(|(k, _v)| k.0.iter().map(|k| hex::encode(k.as_slice())).join("/"))
    | |___________________________________________________________________________________________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_kv_map
    = note: `#[warn(clippy::iter_kv_map)]` on by default
help: try
    |
213 ~                 let paths = self
214 +                     .paths.keys().map(|k| k.0.iter().map(|k| hex::encode(k.as_slice())).join("/"))
    |

warning: function `read_proof_version` is never used
  --> grovedb/src/versioning.rs:12:8
   |
12 | pub fn read_proof_version(mut bytes: &[u8]) -> Result<u32, Error> {
   |        ^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(dead_code)]` on by default

warning: unused variable: `proof_version`
   --> grovedb/src/operations/proof/verify.rs:263:14
    |
263 |         let (proof_version, proof) = read_and_consume_proof_version(proof)?;
    |              ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_proof_version`
    |
    = note: `#[warn(unused_variables)]` on by default

warning: unused import: `Error::InternalError`
 --> grovedb/src/versioning.rs:5:20
  |
5 | use crate::{Error, Error::InternalError};
  |                    ^^^^^^^^^^^^^^^^^^^^

warning: unused import: `VarIntWriter`
 --> grovedb/src/versioning.rs:3:46
  |
3 | use integer_encoding::{VarInt, VarIntReader, VarIntWriter};
  |                                              ^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default

warning: this `else { if .. }` block can be collapsed
    --> grovedb/src/batch/mod.rs:1795:16
     |
1795 |           } else {
     |  ________________^
1796 | |             if new_merk {
1797 | |                 Ok(Merk::open_empty(storage, MerkType::BaseMerk, false)).wrap_with_cost(cost)
1798 | |             } else {
...    |
1802 | |             }
1803 | |         }
     | |_________^
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_else_if
     = note: `#[warn(clippy::collapsible_else_if)]` on by default
help: collapse nested if block
     |
1795 ~         } else if new_merk {
1796 +             Ok(Merk::open_empty(storage, MerkType::BaseMerk, false)).wrap_with_cost(cost)
1797 +         } else {
1798 +             Merk::open_base(storage, false)
1799 +                 .map_err(|_| Error::CorruptedData("cannot open a the root subtree".to_owned()))
1800 +                 .add_cost(cost)
1801 +         }
     |

warning: this `impl` can be derived
  --> merk/src/estimated_costs/average_case_costs.rs:75:1
   |
75 | / impl Default for EstimatedSumTrees {
76 | |     fn default() -> Self {
77 | |         EstimatedSumTrees::NoSumTrees
78 | |     }
79 | | }
   | |_^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#derivable_impls
   = note: `#[warn(clippy::derivable_impls)]` on by default
   = help: remove the manual implementation...
help: ...and instead derive it...
   |
60 + #[derive(Default)]
61 | pub enum EstimatedSumTrees {
   |
help: ...and mark the default variant
   |
62 ~     #[default]
63 ~     NoSumTrees,
   |

warning: the borrowed expression implements the required traits
   --> storage/src/rocksdb_storage/storage_context/raw_iterator.rs:172:32
    |
172 |         self.raw_iterator.seek(&self.prefix);
    |                                ^^^^^^^^^^^^ help: change this to: `self.prefix`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow

warning: the borrowed expression implements the required traits
  --> storage/src/rocksdb_storage/storage_context/raw_iterator.rs:51:32
   |
51 |         self.raw_iterator.seek(&self.prefix);
   |                                ^^^^^^^^^^^^ help: change this to: `self.prefix`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
   = note: `#[warn(clippy::needless_borrow)]` on by default

warning: using `clone` on type `[u8; 32]` which implements the `Copy` trait
   --> storage/src/rocksdb_storage/storage_context/context_tx.rs:314:21
    |
314 |             prefix: self.prefix.clone(),
    |                     ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.prefix`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy

warning: using `clone` on type `[u8; 32]` which implements the `Copy` trait
   --> storage/src/rocksdb_storage/storage_context/context_tx.rs:299:21
    |
299 |             prefix: self.prefix.clone(),
    |                     ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.prefix`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy

warning: using `clone` on type `[u8; 32]` which implements the `Copy` trait
   --> storage/src/rocksdb_storage/storage_context/context_no_tx.rs:282:21
    |
282 |             prefix: self.prefix.clone(),
    |                     ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.prefix`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy

warning: using `clone` on type `[u8; 32]` which implements the `Copy` trait
   --> storage/src/rocksdb_storage/storage_context/context_no_tx.rs:268:21
    |
268 |             prefix: self.prefix.clone(),
    |                     ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.prefix`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
    = note: `#[warn(clippy::clone_on_copy)]` on by default

warning: unused imports: `DB`, `Options`
  --> storage/src/rocksdb_storage/storage.rs:43:92
   |
43 |     checkpoint::Checkpoint, ColumnFamily, ColumnFamilyDescriptor, OptimisticTransactionDB, Options,
   |                                                                                            ^^^^^^^
44 |     Transaction, WriteBatchWithTransaction, DB, DEFAULT_COLUMN_FAMILY_NAME,
   |                                             ^^
   |
   = note: `#[warn(unused_imports)]` on by default

warning: this `impl` can be derived
  --> costs/src/storage_cost/removal.rs:62:1
   |
62 | / impl Default for StorageRemovedBytes {
63 | |     fn default() -> Self {
64 | |         NoStorageRemoval
65 | |     }
66 | | }
   | |_^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#derivable_impls
   = note: `#[warn(clippy::derivable_impls)]` on by default
   = help: remove the manual implementation...
help: ...and instead derive it...
   |
53 + #[derive(Default)]
54 | pub enum StorageRemovedBytes {
   |
help: ...and mark the default variant
   |
55 ~     #[default]
56 ~     NoStorageRemoval,
   |