update excuses: what does "but foo is screwed anyway"?

["Marcelo E. Magallon" <mmagallo@debian.org>]

Hi,

 * out of date on arm: libwings-dev, libwmaker0-dev, wmaker (from
   0.61.1-4) (but arm is screwed anyway)

 what does that mean?  In particular, what relation does that bear with
 the installability (or lack of it) of a package into testing?

 Side issue: can we please, please, please have a query interface
 similar to that of packages.d.o for update excuses?  That is,
 whatever.d.o/wmaker -> whatever-else.d.o/foo/wmaker.html?

 Another side issue: what does:

   * foo-package uploaded XX days ago, out of date by YY days!
   * valid candidate (will be installed unless it's dependent upon
     other buggy pkgs)

 mean?  In particular, if it's a valid candidate, why hasn't it been
 installed already?  In the "explanation", the closest I can find is:

 > 4. It then collects the source packages that pass 3, and tries
 > installing them in various combinations to see if the number of
 > uninstallable packages in "testing" either drops or remains the same.
 > If so, they're in. If not, they're not.

 But I'm still left in the dark as to why the package hasn't been
 installed yet.  That is to say, if there's a reason for this, is there
 anyway to find it out?

-- 
Marcelo