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-rw-r--r--build-aux/hydra/gnu-system.scm7
1 files changed, 7 insertions, 0 deletions
diff --git a/build-aux/hydra/gnu-system.scm b/build-aux/hydra/gnu-system.scm
index d9b9c55d9c..5aaac5220f 100644
--- a/build-aux/hydra/gnu-system.scm
+++ b/build-aux/hydra/gnu-system.scm
@@ -334,6 +334,13 @@ valid."
   (parameterize ((%graft? #f))
     ;; Return one job for each package, except bootstrap packages.
     (append-map (lambda (system)
+                  (format (current-error-port)
+                          "evaluating for '~a' (heap size: ~a MiB)...~%"
+                          system
+                          (round
+                           (/ (assoc-ref (gc-stats) 'heap-size)
+                              (expt 2. 20))))
+                  (invalidate-derivation-caches!)
                   (case subset
                     ((all)
                      ;; Build everything, including replacements.