Better logging and fix concurrency issues

crates/solc-binaries/Cargo.toml

@@ -19,3 +19,6 @@ reqwest = { workspace = true }
 semver = { workspace = true }
 serde = { workspace = true }
 sha2 = { workspace = true }
+
+[lints]
+workspace = true

crates/solc-binaries/src/cache.rs

@@ -39,10 +39,7 @@ pub(crate) async fn get_or_download(
 }
 
 async fn download_to_file(path: &Path, downloader: &SolcDownloader) -> anyhow::Result<()> {
-    tracing::info!("caching file: {}", path.display());
-
     let Ok(file) = File::create_new(path) else {
-        tracing::debug!("cache file already exists: {}", path.display());
         return Ok(());
     };
 

crates/solc-binaries/src/download.rs

@@ -107,7 +107,6 @@ impl SolcDownloader {
     /// Errors out if the download fails or the digest of the downloaded file
     /// mismatches the expected digest from the release [List].
     pub async fn download(&self) -> anyhow::Result<Vec<u8>> {
-        tracing::info!("downloading solc: {self:?}");
         let builds = List::download(self.list).await?.builds;
         let build = builds
             .iter()