Decrypt: take a Ref instead of two int

6 jobs for take_ref in 15 minutes and 50 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #501009
build

00:03:19

passed #501014
build_android

00:01:00

passed #501010
build_clang_libcpp

00:15:49

passed #501013
build_clazy

00:03:02

passed #501012
build_mingw64_fedora

00:05:58

passed #501011
build_ubuntu_16_04

00:11:12