Use version = 3, not version = 1

Author: alexcrichton

src/cargo/core/resolver/encode.rs

@@ -143,7 +143,7 @@ impl EncodableResolve {
         let mut checksums = HashMap::new();
 
         let mut version = match self.version {
-            Some(1) => ResolveVersion::V3,
+            Some(3) => ResolveVersion::V3,
             Some(n) => bail!(
                 "lock file version `{}` was found, but this version of Cargo \
                  does not understand this lock file, perhaps Cargo needs \
@@ -597,7 +597,7 @@ impl<'a> ser::Serialize for Resolve {
             metadata,
             patch,
             version: match self.version() {
-                ResolveVersion::V3 => Some(1),
+                ResolveVersion::V3 => Some(3),
                 ResolveVersion::V2 | ResolveVersion::V1 => None,
             },
         }

tests/testsuite/lockfile_compat.rs

@@ -649,7 +649,7 @@ fn v3_and_git() {
     let lockfile = format!(
         r#"# This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 1
+version = 3
 
 [[package]]
 name = "dep1"
@@ -684,7 +684,7 @@ dependencies = [
             ),
         )
         .file("src/lib.rs", "")
-        .file("Cargo.lock", "version = 1")
+        .file("Cargo.lock", "version = 3")
         .build();
 
     p.cargo("fetch").run();