Bug 1730851 - Build the rust-dev toolchain with more complete version information. r=firefox-build-system-reviewers,mhentges

Differential Revision: https://phabricator.services.mozilla.com/D125775

taskcluster/ci/fetch/toolchains.yml

@@ -490,6 +490,7 @@ rust-1.56.0-dev:
     description: Rust 1.56.0-dev source code
     fetch:
         type: git
+        include-dot-git: true
         repo: https://github.com/rust-lang/rust/
         revision: d9aa28767287670df6cf823b94629122e04442c0
 

taskcluster/scripts/misc/repack_rust.py

@@ -398,6 +398,9 @@ def build_src(install_dir, host, targets, patches):
         extended = true
         tools = ["analysis", "cargo", "rustfmt", "clippy", "src"]
 
+        [rust]
+        ignore-git = false
+
         [install]
         prefix = "{prefix}"
         sysconfdir = "etc"