Commits on Jul 15, 2020

1. Auto merge of rust-lang#8473 - alexcrichton:fix-fingerprint-loc, r=ehuss …

   Avoid colliding with older Cargo fingerprint changes
   
   The fingerprint format Cargo stores changed recently in a way that
   older Cargos cannot understand. Unfortunately though older Cargos are
   colliding on some compilation units trying to read the new format and
   they're bailing out. This commit fixes this issue by ensuring that the
   location for fingerprint metadata is different in older Cargos and newer
   Cargos.
   
   Fingerprint metadata is always stored in a location with a hash in the
   file name. This hash typically includes the hash of rustc's version
   information itself, but for units which don't have a `Metadata` it's a
   much simpler hash which is much more likely to collide with other
   versions of Cargo. The fix in this commit is to extract the metadata
   version that we're hashing to a constant, and then also hash it for
   generating a filesystem location to house fingerprint data for a unit
   that has no `Metadata`.
   
   Closes rust-lang#8472
   Closes rust-lang#8298

   

   bors authored and ehuss committed Jul 15, 2020
   Configuration menu

   • View commit details
   • Copy full SHA for c810ed0
   • Browse repository at this point

   Copy the full SHA

   c810ed0 View commit details

   Browse the repository at this point in the history