<div dir="ltr"><div>I ran into the same thing with Stackage and filed the issue here:<br><br><a href="https://github.com/fpco/stackage/issues/666">https://github.com/fpco/stackage/issues/666</a><br><br></div>Stackage is not accepting the new tar version due to these failures.<br></div><br><div class="gmail_quote"><div dir="ltr">On Thu, Jul 9, 2015 at 2:26 PM Michael Alan Dorman <<a href="mailto:mdorman@ironicdesign.com">mdorman@ironicdesign.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I'm not sure if there's a more appropriate venue to bring this up; the<br>
package doesn't seem to have any sort of explicit issue tracker.<br>
<br>
On the NixOS build servers, we're seeing across-the-board failures for<br>
the 0.4.2.0 release of the 'tar' library, specifically, two properties<br>
that were added in the latest release.<br>
<br>
It looks to me like prop_lookup is fundamentally broken---it falls over<br>
in the face of a lookup for 'a/b' in a list of entries that includes<br>
'a/b/c/d', because while the library lookup function returns a match<br>
including the remainder of the path as a result, the Data.List.lookup<br>
that it's comparing against returns nothing.<br>
<br>
I don't see a way for the test as it is constituted to work reliably.<br>
I'm going to guess that prop_valid suffers from a similar issue.<br>
<br>
Either way, it would be nice if they could either be corrected, or diked<br>
out until that happens.<br>
<br>
Mike.<br>
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