warning: an array of `Range` that is only one element
   --> src/snippet/mod.rs:750:66
    |
750 |         assert_eq!(&collapse_overlapped_ranges(&[0..3, 1..2,]), &[0..3]);
    |                                                                  ^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_range_in_vec_init
help: if you wanted a `Vec` that contains the entire range, try
    |
750 |         assert_eq!(&collapse_overlapped_ranges(&[0..3, 1..2,]), &(0..3).collect::<std::vec::Vec<usize>>());
    |                                                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
help: if you wanted an array of len 3, try
    |
750 |         assert_eq!(&collapse_overlapped_ranges(&[0..3, 1..2,]), &[0; 3]);
    |                                                                   ~~~~

warning: an array of `Range` that is only one element
   --> src/snippet/mod.rs:749:66
    |
749 |         assert_eq!(&collapse_overlapped_ranges(&[0..2, 1..3,]), &[0..3]);
    |                                                                  ^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_range_in_vec_init
help: if you wanted a `Vec` that contains the entire range, try
    |
749 |         assert_eq!(&collapse_overlapped_ranges(&[0..2, 1..3,]), &(0..3).collect::<std::vec::Vec<usize>>());
    |                                                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
help: if you wanted an array of len 3, try
    |
749 |         assert_eq!(&collapse_overlapped_ranges(&[0..2, 1..3,]), &[0; 3]);
    |                                                                   ~~~~

warning: an array of `Range` that is only one element
   --> src/snippet/mod.rs:748:66
    |
748 |         assert_eq!(&collapse_overlapped_ranges(&[0..2, 1..2,]), &[0..2]);
    |                                                                  ^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_range_in_vec_init
    = note: `#[warn(clippy::single_range_in_vec_init)]` on by default
help: if you wanted a `Vec` that contains the entire range, try
    |
748 |         assert_eq!(&collapse_overlapped_ranges(&[0..2, 1..2,]), &(0..2).collect::<std::vec::Vec<usize>>());
    |                                                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
help: if you wanted an array of len 2, try
    |
748 |         assert_eq!(&collapse_overlapped_ranges(&[0..2, 1..2,]), &[0; 2]);
    |                                                                   ~~~~

warning: this expression creates a reference which is immediately dereferenced by the compiler
   --> src/core/tests.rs:465:13
    |
465 |             &json_term_writer.term(),
    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `json_term_writer.term()`
    |
    = 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
   --> src/core/tests.rs:427:13
    |
427 |             &json_term_writer.term(),
    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `json_term_writer.term()`
    |
    = 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: unused variable: `term_freq`
   --> src/postings/recorder.rs:223:21
    |
223 |                 let term_freq = u32_it.next().unwrap_or(self.current_tf);
    |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_term_freq`

warning: unused variable: `tf`
   --> src/postings/recorder.rs:215:26
    |
215 |             for (doc_id, tf) in doc_id_and_tf {
    |                          ^^ help: if this is intentional, prefix it with an underscore: `_tf`
    |
    = note: `#[warn(unused_variables)]` on by default