branch master updated (d738f13 -> e2e6e9e)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  d738f13   gnu: notmuch: Move elisp directory and generate autoloads.
       new  eb1150c   derivations: Split 'derivation-hash' in two procedures.
       new  90354e3   derivations: Don't memoize 'derivation-hash'.
       new  d1f01e4   memoization: Add 'invalidate-memoization!.
       new  34797d8   hydra: Invalidate derivation caches after each 
architecture evaluation.
       new  e2e6e9e   hydra: Pre-load the compiler.

The 5 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 build-aux/hydra/gnu-system.scm | 17 ++++++++++---
 guix/derivations.scm           | 57 ++++++++++++++++++++++++++----------------
 guix/memoization.scm           | 15 +++++++++--
 3 files changed, 61 insertions(+), 28 deletions(-)