1error: trailing semicolon in macro used in expression position 2 --> $DIR/issue-84195-lint-anon-const.rs:8:14 3 | 4LL | () => { 0; }; 5 | ^ 6... 7LL | let val: [u8; len!()] = []; 8 | ------ in this macro invocation 9 | 10note: the lint level is defined here 11 --> $DIR/issue-84195-lint-anon-const.rs:5:9 12 | 13LL | #![deny(semicolon_in_expressions_from_macros)] 14 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 15 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! 16 = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813> 17 = note: this error originates in the macro `len` (in Nightly builds, run with -Z macro-backtrace for more info) 18 19error: aborting due to previous error 20 21