Auto merge of #6060 - dwijnand:master, r=alexcrichton

If creating a new GitSource, updating it is required before querying it

Fixes #6059

src/cargo/ops/cargo_install.rs

@@ -169,7 +169,7 @@ fn install_one(
             krate,
             vers,
             config,
-            is_first_install,
+            true,
             &mut |git| git.read_packages(),
         )?
     } else if source_id.is_path() {

tests/testsuite/install.rs

@@ -283,6 +283,22 @@ fn multiple_crates_select() {
     assert_has_installed_exe(cargo_home(), "bar");
 }
 
+#[test]
+fn multiple_crates_git_all() {
+    let p = git::repo(&paths::root().join("foo"))
+        .file("Cargo.toml", r#"\
+[workspace]
+members = ["bin1", "bin2"]
+"#)
+        .file("bin1/Cargo.toml", &basic_manifest("bin1", "0.1.0"))
+        .file("bin2/Cargo.toml", &basic_manifest("bin2", "0.1.0"))
+        .file("bin1/src/main.rs", r#"fn main() { println!("Hello, world!"); }"#)
+        .file("bin2/src/main.rs", r#"fn main() { println!("Hello, world!"); }"#)
+        .build();
+
+    cargo_process(&format!("install --git {} bin1 bin2", p.url().to_string())).run();
+}
+
 #[test]
 fn multiple_crates_auto_binaries() {
     let p = project()