chore: `restoreAllArtifacts = true for core

Author: tydeu

src/lakefile.toml.in

@@ -13,6 +13,11 @@ defaultTargets = ["Init", "Std", "Lean", "Lake", "LakeMain", "Leanc"]
 # The root of all the compiler output directories
 buildDir = "${CMAKE_BINARY_DIR}"
 
+# Ensure build artifacts end up in the build directory even when the Lake
+# local artifact cache is enabled. This is necessary because subsequent stages
+# will expect the previous stage's artifacts to be in the build directory.
+restoreAllArtifacts = true
+
 # The directory of Lean source files (i.e., `src`)
 srcDir = "${LEAN_SOURCE_DIR}"