Downgrade Rust to 1.69.0

This avoids an issue where the sign-ext feature is enabled in Rust >= 1.70.0. [cargo-contract issue](use-ink/cargo-contract#1139) [rust issue](rust-lang/rust#109807)
Snowfork · Jun 12, 2023 · 4d101a5 · 4d101a5
1 parent cd9e049
commit 4d101a5
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diff --git a/flake.lock b/flake.lock
diff --git a/parachain/rust-toolchain.toml b/parachain/rust-toolchain.toml
@@ -6,7 +6,8 @@
 #   - update `channel = "nightly-OLD_DATE"` below
 #   - update nightly-OLD_DATE in .github/workflows/parachain.yml
 
-channel = "nightly-2023-04-22" # 1.71.0 nightly for unstable features
+channel = "nightly-2023-03-04" # 1.69.0 nightly for unstable features and no sign-ext
+# for more on the sign-ext issue: https://github.com/paritytech/cargo-contract/issues/1139
 targets = [
     "wasm32-unknown-unknown",
 ]