warning: associated items `deser_from_str` and `ser_to_string` are never used
   --> src/store/compressors.rs:93:8
    |
92  | impl ZstdCompressor {
    | ------------------- associated items in this implementation
93  |     fn deser_from_str(val: &str) -> Result<ZstdCompressor, String> {
    |        ^^^^^^^^^^^^^^
...
129 |     fn ser_to_string(&self) -> String {
    |        ^^^^^^^^^^^^^
    |
    = note: `#[warn(dead_code)]` on by default

warning: very complex type used. Consider factoring parts into `type` definitions
   --> query-grammar/src/query_grammar.rs:691:6
    |
691 | ) -> JResult<&str, (Option<BinaryOperand>, Option<Occur>, Option<UserInputAst>)> {
    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
    = note: `#[warn(clippy::type_complexity)]` on by default

warning: stripping a prefix manually
   --> query-grammar/src/query_grammar.rs:572:17
    |
572 |                 &i[1..],
    |                 ^^^^^^^
    |
note: the prefix was tested here
   --> query-grammar/src/query_grammar.rs:570:9
    |
570 |         if i.starts_with(']') {
    |         ^^^^^^^^^^^^^^^^^^^^^^
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_strip
help: try using the `strip_prefix` method
    |
570 ~         if let Some(<stripped>) = i.strip_prefix(']') {
571 |             break Ok((
572 ~                 <stripped>,
    |

warning: length comparison to zero
   --> query-grammar/src/query_grammar.rs:557:12
    |
557 |         if i.len() == 0 {
    |            ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `i.is_empty()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero

warning: stripping a prefix manually
   --> query-grammar/src/query_grammar.rs:272:23
    |
272 |             break Ok((&i[1..], (UserInputAst::Clause(terms), errs)));
    |                       ^^^^^^^
    |
note: the prefix was tested here
   --> query-grammar/src/query_grammar.rs:271:9
    |
271 |         if i.starts_with(')') {
    |         ^^^^^^^^^^^^^^^^^^^^^^
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_strip
    = note: `#[warn(clippy::manual_strip)]` on by default
help: try using the `strip_prefix` method
    |
271 ~         if let Some(<stripped>) = i.strip_prefix(')') {
272 ~             break Ok((<stripped>, (UserInputAst::Clause(terms), errs)));
    |

warning: length comparison to zero
   --> query-grammar/src/query_grammar.rs:267:12
    |
267 |         if i.len() == 0 {
    |            ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `i.is_empty()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
    = note: `#[warn(clippy::len_zero)]` on by default