const std = @import("std");
const warn = std.debug.warn;

pub fn main() !void {
    // 1. This works
    var buf = try std.Buffer.init(std.debug.global_allocator, "");
    defer buf.deinit();
    try buf.append("hello");
    warn("buffer:\n\t {}", buf);

    // 2. But this does NOT work
    var list = std.ArrayList(i32).init(std.debug.global_allocator);
    defer list.deinit();
    try list.append(1);
    warn("list:\n\t {}", list);
}