1 error: macro expansion ignores token `assert_eq` and any following
2 --> $DIR/macro-in-expression-context.rs:12:9
4 LL | assert_eq!("B", "B");
8 | ------ caused by the macro expansion here
10 = note: the usage of `foo!` is likely invalid in expression context
11 help: you might be missing a semicolon here
16 warning: trailing semicolon in macro used in expression position
17 --> $DIR/macro-in-expression-context.rs:5:29
19 LL | assert_eq!("A", "A");
23 | ------ in this macro invocation
25 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
26 = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
27 = note: macro invocations at the end of a block are treated as expressions
28 = note: to ignore the value produced by the macro, add a semicolon after the invocation of `foo`
29 = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
30 = note: this warning originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info)
32 error: aborting due to previous error; 1 warning emitted