error: unknown start of token: \u{20e3} --> $DIR/lex-emoji-identifiers.rs:6:14 | LL | let key1️⃣ = "keycap sequence"; | ^ error: identifiers cannot contain emoji: `arrow↔️` --> $DIR/lex-emoji-identifiers.rs:2:9 | LL | let arrow↔️ = "basic emoji"; | ^^^^^^ error: identifiers cannot contain emoji: `planet🪐` --> $DIR/lex-emoji-identifiers.rs:3:9 | LL | let planet🪐 = "basic emoji"; | ^^^^^^^^ error: identifiers cannot contain emoji: `wireless🛜` --> $DIR/lex-emoji-identifiers.rs:4:9 | LL | let wireless🛜 = "basic emoji"; | ^^^^^^^^^^ error: identifiers cannot contain emoji: `flag🇺🇳` --> $DIR/lex-emoji-identifiers.rs:8:9 | LL | let flag🇺🇳 = "flag sequence"; | ^^^^^^ error: identifiers cannot contain emoji: `wales🏴` --> $DIR/lex-emoji-identifiers.rs:9:9 | LL | let wales🏴 = "tag sequence"; | ^^^^^^^ error: identifiers cannot contain emoji: `folded🙏🏿` --> $DIR/lex-emoji-identifiers.rs:10:9 | LL | let folded🙏🏿 = "modifier sequence"; | ^^^^^^^^^^ warning: identifier contains uncommon Unicode codepoints --> $DIR/lex-emoji-identifiers.rs:6:9 | LL | let key1️⃣ = "keycap sequence"; | ^^^^ | = note: `#[warn(uncommon_codepoints)]` on by default error: aborting due to 7 previous errors; 1 warning emitted