warning: this `match` can be collapsed into the outer `if let`
   --> src/server/mod.rs:97:9
    |
97  | /         match level {
98  | |             log::Level::Trace | log::Level::Debug => {
99  | |                 std::env::set_var("RUST_LOG", "debug");
100 | |                 env_logger::init_from_env(env_logger::Env::new().default_filter_or("info"));
101 | |             }
102 | |             _ => (),
103 | |         }
    | |_________^
    |
help: the outer pattern can be modified to include the inner pattern
   --> src/server/mod.rs:96:17
    |
96  |     if let Some(level) = args_common.verbose.log_level() {
    |                 ^^^^^ replace this binding
97  |         match level {
98  |             log::Level::Trace | log::Level::Debug => {
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ with this pattern
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
    = note: `#[warn(clippy::collapsible_match)]` on by default