Can someone please explain why the following assertion fails?

[Gary Willoughby via Digitalmars-d-learn]

On Monday, 31 October 2016 at 19:08:50 UTC, Gary Willoughby wrote:
> Can someone please explain why the following assertion fails?
>
> import std.stdio;
> import std.conv;
>
> void main(string[] args)
> {
> 	auto x = 1;
>
> 	assert(hashOf(x.to!(string)) == hashOf(x.to!(string)));
> }
>
> Thanks.

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