feat! use Rust 2021 to benefit from changes to partial borrowing

Sponsored-by: author

1 files changed, 1 insertions, 1 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 17535db..3d69988 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 name = "obnam"
 version ="0.7.0"
 authors = ["Lars Wirzenius <liw@liw.fi>"]
-edition = "2018"
+edition = "2021"
 description = "a backup program"
 license = "AGPL-3.0-or-later"
 homepage = "https://obnam.org/"