#![deny(confusable_idents)] #![allow(uncommon_codepoints, non_upper_case_globals)] const s: usize = 42; const s_s: usize = 42; fn main() { let s = "rust"; //~ ERROR identifier pair considered confusable let s_s = "rust2"; //~ ERROR identifier pair considered confusable not_affected(); } fn not_affected() { let s1 = 1; let sl = 'l'; }