Change version to match compiler's

.github/workflows/ci.yml

@@ -16,10 +16,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: nightly
+          components: rustfmt
 
       - name: Run cargo fmt
-        run: rustup toolchain install nightly && rustup component add --toolchain nightly-x86_64-unknown-linux-gnu rustfmt && cargo +nightly fmt -- --check
+        run: cargo +nightly fmt --check
+
+      - uses: dtolnay/rust-toolchain@stable
       - name: Run cargo clippy
         run: cargo clippy -- -D warnings
   test:

Cargo.toml

@@ -37,6 +37,11 @@ annotate-snippets = "0.11.5"
 num-bigint = "0.4.6"
 if_chain = "1.0.2"
 
+# Here we specify real dependency specifications for Cairo crates *if* currently we want to use
+# a particular unreleased commit (which is frequent mid-development).
+# We list all Cairo crates that go into Scarb's compilation unit even if Scarb itself does not depend
+# on some of them directly.
+# This ensures no duplicate instances of Cairo crates are pulled in by mistake.
 [patch.crates-io]
 cairo-lang-compiler = { git = "https://github.com/starkware-libs/cairo", rev = "ca2dceb" }
 cairo-lang-utils = { git = "https://github.com/starkware-libs/cairo", rev = "ca2dceb" }