warning: the borrowed expression implements the required traits
  --> src/disk.rs:55:53
   |
55 |     let target = pathdiff::diff_paths(&destination, &source.parent().unwrap()).unwrap();
   |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `source.parent().unwrap()`
   |
   = 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
  --> src/disk.rs:55:39
   |
55 |     let target = pathdiff::diff_paths(&destination, &source.parent().unwrap()).unwrap();
   |                                       ^^^^^^^^^^^^ help: change this to: `destination`
   |
   = 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: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
  --> src/disk.rs:42:9
   |
42 | /         match fs::create_dir_all(parent) {
43 | |             Err(err) => {
44 | |                 error!("Couldn't create folder {}: {}", parent.display(), err);
45 | |             }
46 | |             Ok(()) => (),
47 | |         }
   | |_________^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
   = note: `#[warn(clippy::single_match)]` on by default
help: try
   |
42 ~         if let Err(err) = fs::create_dir_all(parent) {
43 +             error!("Couldn't create folder {}: {}", parent.display(), err);
44 +         }
   |

warning: unnecessary hashes around raw string literal
   --> src/downloader.rs:126:36
    |
126 |                         Regex::new(r#"^.*(\b[a-z]+/[a-z-+\.]+).*$"#).unwrap();
    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `r"^.*(\b[a-z]+/[a-z-+\.]+).*$"`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_raw_string_hashes
    = note: `#[warn(clippy::needless_raw_string_hashes)]` on by default