fuzzWorkerRun

fn fuzzWorkerRun(
    fuzz: *Fuzz,
    run: *Step.Run,
    unit_test_index: u32,
) void {
    const gpa = run.step.owner.allocator;
    const test_name = run.cached_test_metadata.?.testName(unit_test_index);

    const prog_node = fuzz.prog_node.start(test_name, 0);
    defer prog_node.end();

    run.rerunInFuzzMode(fuzz, unit_test_index, prog_node) catch |err| switch (err) {
        error.MakeFailed => {
            var buf: [256]u8 = undefined;
            const w = std.debug.lockStderrWriter(&buf);
            defer std.debug.unlockStderrWriter();
            build_runner.printErrorMessages(gpa, &run.step, .{ .ttyconf = fuzz.ws.ttyconf }, w, false) catch {};
            return;
        },
        else => {
            log.err("step '{s}': failed to rerun '{s}' in fuzz mode: {s}", .{
                run.step.name, test_name, @errorName(err),
            });
            return;
        },
    };
}