Fill in `get_trial_start()` function

Reads the encrypted timestamp from the trial file and returns a
`DateTime`.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/errors.rs b/src/errors.rs
index 17508fe..f84bb2e 100644
--- a/src/errors.rs
+++ b/src/errors.rs
@@ -6,6 +6,8 @@ error_chain! {
     foreign_links {
         Xdg(xdg::BaseDirectoriesError);
         Io(::std::io::Error);
+
+        DateCrypt(DateCryptError);
     }
 }