Checked exceptions thrown from within lambda expressions

Can you please explain why checked exceptions have to be caught from within lambda expressions? In other words, why does the following code not compile...

public void doSomething() throws IOException {
  // The read method throws an IOException.
  IntStream.range(0, 10).forEach(i -> someList.add(read(istream)));
}

but this one will?

public void doSomething() throws IOException {
  IntStream.range(0, 10).forEach(i -> {
    try {
      // The read method throws an IOException.
      someList.add(read(istream));
    }
    catch (IOException ioe) {
      // Callee has to handle checked exception, not caller.
    }
  });
}

It seems like the callee now has to handle any checked exceptions that are thrown and not the caller.