auto merge of #8110 : brson/rust/no-rebuild, r=bblum

...oses #8101

Author: bors

mk/tests.mk

@@ -312,28 +312,26 @@ define TEST_RUNNER
 # If NO_REBUILD is set then break the dependencies on extra so we can
 # test crates without rebuilding std and extra first
 ifeq ($(NO_REBUILD),)
-STDTESTDEP_$(1)_$(2)_$(3) = $$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_EXTRALIB_$(2))
+STDTESTDEP_$(1)_$(2)_$(3) = $$(SREQ$(1)_T_$(2)_H_$(3)) \
+                            $$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_EXTRALIB_$(2))
 else
 STDTESTDEP_$(1)_$(2)_$(3) =
 endif
 
 $(3)/stage$(1)/test/stdtest-$(2)$$(X_$(2)):			\
 		$$(STDLIB_CRATE) $$(STDLIB_INPUTS)	\
-		$$(SREQ$(1)_T_$(2)_H_$(3)) \
 		$$(STDTESTDEP_$(1)_$(2)_$(3))
 	@$$(call E, compile_and_link: $$@)
 	$$(STAGE$(1)_T_$(2)_H_$(3)) -o $$@ $$< --test
 
 $(3)/stage$(1)/test/extratest-$(2)$$(X_$(2)):			\
 		$$(EXTRALIB_CRATE) $$(EXTRALIB_INPUTS)	\
-		$$(SREQ$(1)_T_$(2)_H_$(3)) \
 		$$(STDTESTDEP_$(1)_$(2)_$(3))
 	@$$(call E, compile_and_link: $$@)
 	$$(STAGE$(1)_T_$(2)_H_$(3)) -o $$@ $$< --test
 
 $(3)/stage$(1)/test/syntaxtest-$(2)$$(X_$(2)):			\
 		$$(LIBSYNTAX_CRATE) $$(LIBSYNTAX_INPUTS)	\
-		$$(SREQ$(1)_T_$(2)_H_$(3)) \
 		$$(STDTESTDEP_$(1)_$(2)_$(3))
 	@$$(call E, compile_and_link: $$@)
 	$$(STAGE$(1)_T_$(2)_H_$(3)) -o $$@ $$< --test