From bba4964e31807fb6e0b41dfa7fb4ea9447f69bbb Mon Sep 17 00:00:00 2001
From: Jos van den Oever <jos@vandenoever.info>
Date: Fri, 8 Feb 2019 22:00:20 +0100
Subject: [PATCH] Fix error where Cargo.toml could not be found

And improve the error message
---
 src/configuration.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/configuration.rs b/src/configuration.rs
index efeead1..b63b5a9 100644
--- a/src/configuration.rs
+++ b/src/configuration.rs
@@ -469,7 +469,11 @@ fn post_process(config_file: &Path, json: json::Config) -> Result<Config, Box<Er
     let rust_edition: RustEdition = {
         let mut buf = config_file.to_path_buf();
         buf.pop();
+        buf.push(&json.rust.dir);
         buf.push("Cargo.toml");
+        if !buf.exists() {
+            return Err(format!("{} does not exist.", buf.display()).into());
+        }
         let manifest: toml::Value = fs::read_to_string(&buf)?.parse()?;
         manifest["package"]
             .get("edition")