use rust nightly

Author: ReenigneArcher

.github/workflows/ci.yml

@@ -74,6 +74,8 @@ jobs:
         uses: ./ci/github-actions/arch-run
         with:
           command: |
+            rustup show
+            rustup override set nightly
             cargo install cargo2junit cargo-tarpaulin
             cargo tarpaulin --engine llvm --out Xml -Z unstable-options -- --format json > results.json
             cat results.json | cargo2junit > junit.xml

rust-toolchain.toml

@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.85.0"
+channel = "nightly"