fix: fix zkforge zkbuild on ubuntu (#137)

Co-authored-by: Dustin Brickwood <[email protected]>

crates/zkforge/bin/cmd/zk_solc.rs

@@ -230,7 +230,7 @@ impl ZkSolc {
         let sources = self.get_versioned_sources().wrap_err("Cannot get source files")?;
 
         // Step 2: Compile Contracts for Each Source
-        for (solc, version) in sources {
+        for (_solc, version) in sources {
             //configure project solc for each solc version
             for (contract_path, _) in version.1 {
                 // Check if the contract_path is in 'sources' directory or its subdirectories
@@ -250,7 +250,7 @@ impl ZkSolc {
                 ))?;
 
                 // Step 4: Build Compiler Arguments
-                let comp_args = self.build_compiler_args(&contract_path, &solc);
+                let comp_args = self.build_compiler_args(&contract_path, &self.project.solc);
 
                 // Step 5: Run Compiler and Handle Output
                 let mut cmd = Command::new(&self.compiler_path);

crates/zkforge/bin/cmd/zksolc_manager.rs

@@ -174,7 +174,7 @@ impl ZkSolcOS {
     /// This function is used to construct the URI for downloading the zkSync compiler binary.
     fn get_download_uri(&self) -> &str {
         match self {
-            ZkSolcOS::Linux => "linux-amd64",
+            ZkSolcOS::Linux => "linux-amd64-musl",
             ZkSolcOS::MacAMD => "macosx-amd64",
             ZkSolcOS::MacARM => "macosx-arm64",
         }