Introduce into_manager for Device

To enable applications like nitrokey-test to go back to a manager
instance from a Device instance, we add the into_manager function to the
Device trait.  To do that, we have to keep track of the Manager’s
lifetime by adding a lifetime to Device (and then to some other traits
that use Device).

1 files changed, 1 insertions, 1 deletions

diff --git a/src/error.rs b/src/error.rs
index b84f5eb..9e6adc0 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -85,7 +85,7 @@ impl From<sync::TryLockError<sync::MutexGuard<'static, crate::Manager>>> for Err
     }
 }
 
-impl<T: device::Device> From<(T, Error)> for Error {
+impl<'a, T: device::Device<'a>> From<(T, Error)> for Error {
     fn from((_, err): (T, Error)) -> Self {
         err
     }