cirrus: use apt-get, not apt to install bup

Signed-off-by: Rob Browning <rlb@defaultvalue.org>
Tested-by: Rob Browning <rlb@defaultvalue.org>

diff --git a/.cirrus.yml b/.cirrus.yml
index 639cc2b18fd816df33ba16439dd311e14ed83b2f..46cc25523419bc13d4344899138713b157b9570e 100644 (file)
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -21,7 +21,7 @@ task:
   script: |
     set -xe
     dev/prep-for-debianish-build python3
-    apt install bup
+    DEBIAN_FRONTEND=noninteractive apt-get -y install bup
     export BUP_TEST_OTHER_BUP="$(command -v bup)"
     "$BUP_TEST_OTHER_BUP" version
     dev/system-info