chore: add MSRV (1.60)

Signed-off-by: Stephen Waits <steve@waits.net>

.build.yml

@@ -3,6 +3,7 @@ packages:
   - rustup
   - cargo-audit
   - cargo-deny
+  - cargo-msrv
   - cargo-outdated
   - cargo-tarpaulin
   - cargo-udeps
@@ -39,6 +40,10 @@ tasks:
       rustup default stable
       cd vivaldi-nc/
       cargo audit -d /tmp/advisory-db
+  - msrv: |
+      rustup default stable
+      cd vivaldi-nc/
+      cargo msrv verify
   - coverage: |
       rustup default stable
       cd vivaldi-nc/

Cargo.toml

@@ -12,6 +12,7 @@ readme = "README.md"
 homepage = "https://sr.ht/~swaits/vivaldi-nc/"
 repository = "https://git.sr.ht/~swaits/vivaldi-nc"
 exclude = ["examples/*"]
+rust-version = "1.60"
 
 [features]
 default = []

src/lib.rs

@@ -121,6 +121,7 @@
     variant_size_differences
 )]
 #![allow(clippy::type_repetition_in_bounds)]
+#![allow(single_use_lifetimes)]
 
 mod height_vector;
 mod vector;