Since #14819 this test failed with:
$ ../../../build/stage3/bin/zig test multi_writer.zig
multi_writer.zig:26:57: error: unable to evaluate comptime expression
var batch = std.event.Batch(Error!void, self.streams.len, .auto_async).init();
~~~~^~~~~~~~
referenced by:
Writer: multi_writer.zig:19:52
writer: multi_writer.zig:21:36
remaining reference traces hidden; use '-freference-trace' to see all reference traces
Thanks @jacobly for hints how to fix this on IRC.