Bump walrus to 0.12.0

Author: fitzgen

Diff for: Cargo.toml

@@ -24,9 +24,9 @@ required-features = ["exe"]
 
 [dependencies]
 failure = "0.1.5"
-walrus = { version = "0.11.0", features = ["parallel"] }
-regex = "1.2.1"
-rayon = "1.1.0"
+walrus = { version = "0.12.0", features = ["parallel"] }
+regex = "1.3.1"
+rayon = "1.2.0"
 
 [dependencies.clap]
 optional = true

Diff for: src/bin/wasm-snip.rs

@@ -53,13 +53,9 @@ fn try_main() -> Result<(), failure::Error> {
             .emit_wasm_file(output)
             .with_context(|_| format!("failed to emit snipped wasm to {}", output))?;
     } else {
-        let wasm = module
-            .emit_wasm()
-            .context("failed to re-compile snipped module to wasm")?;
-
+        let wasm = module.emit_wasm();
         let stdout = io::stdout();
         let mut stdout = stdout.lock();
-
         stdout
             .write_all(&wasm)
             .context("failed to write wasm to stdout")?;