error: initializer for `thread_local` value can be made `const`
  --> examples/examples/sloggish/sloggish_subscriber.rs:41:48
   |
41 |             static CURRENT: RefCell<Vec<Id>> = RefCell::new(vec![]);
   |                                                ^^^^^^^^^^^^^^^^^^^^ help: replace with: `const { RefCell::new(vec![]) }`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#thread_local_initializer_can_be_made_const
   = note: `-D clippy::thread-local-initializer-can-be-made-const` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::thread_local_initializer_can_be_made_const)]`