fix(vendor)!: dont exclude .cargo_vcs_info.json

To make the behavior change outstanding for fixing rust-lang/#11000
this is split into a separate commit.

Author: weihanglo

src/cargo/ops/vendor.rs

@@ -647,9 +647,6 @@ fn vendor_this(relative: &Path) -> bool {
         // Temporary Cargo files
         Some(".cargo-ok") => false,
 
-        // Explicitly exclude .cargo_vcs_info.json to keep the old behavior.
-        Some(".cargo_vcs_info.json") => false,
-
         // Skip patch-style orig/rej files. Published crates on crates.io
         // have `Cargo.toml.orig` which we don't want to use here and
         // otherwise these are rarely used as part of the build process.

tests/testsuite/vendor.rs

@@ -1096,7 +1096,7 @@ fn ignore_files() {
     p.cargo("vendor --respect-source-config").run();
     let csum = p.read_file("vendor/url/.cargo-checksum.json");
     assert!(!csum.contains("foo.orig"));
-    assert!(!csum.contains(".cargo_vcs_info.json"));
+    assert!(csum.contains(".cargo_vcs_info.json"));
     assert!(!csum.contains(".gitignore"));
     assert!(!csum.contains(".gitattributes"));
     assert!(!csum.contains(".cargo-ok"));