Disallow build warnings for Rust

.cargo/config.toml

@@ -0,0 +1,2 @@
+[future-incompat-report]
+frequency = "never"

.github/workflows/checks.yml

@@ -71,7 +71,7 @@ jobs:
       - name: Run Unit Tests
         shell: bash
         run: |
-          cargo test --lib --bins --benches --examples --all-features
+          RUSTFLAGS="-D warnings" cargo test --lib --bins --benches --examples --all-features
         env:
           RUST_BACKTRACE: 1
       - name: Lint rustdoc

CHANGELOG-Nns-Dapp-unreleased.md

@@ -46,6 +46,8 @@ proposal is successful, the changes it released will be moved from this file to
 
 #### Changed
 
+* Disallow build warnings for Rust.
+
 #### Deprecated
 
 #### Removed

rs/backend/src/accounts_store/schema/proxy/tests.rs

@@ -1,4 +1,3 @@
-use candid::types::number;
 use ic_stable_structures::memory_manager;
 use pretty_assertions::assert_eq;
 use proptest::proptest;

rs/backend/src/state/partitions.rs

@@ -60,15 +60,6 @@ pub enum PartitionsMaybe {
 }
 
 impl PartitionsMaybe {
-    /// Gets the schema label.
-    #[cfg(test)]
-    pub fn schema_label(&self) -> SchemaLabel {
-        match self {
-            #[cfg(test)]
-            PartitionsMaybe::Partitions(partitions) => partitions.schema_label(),
-            PartitionsMaybe::None(_) => SchemaLabel::Map,
-        }
-    }
     /// Gets or creates partitions.
     ///
     /// WARNING: Partitioning overwrites the memory.  Please be sure that you have extracted all useful data from raw memory before calling this.