@@ -465,7 +465,7 @@ impl Miri {
465465 // Tell it where to put the sysroot.
466466 cargo. env ( "MIRI_SYSROOT" , & miri_sysroot) ;
467467
468- let mut cargo = Command :: from ( cargo) ;
468+ let mut cargo = BootstrapCommand :: from ( cargo) ;
469469 let _guard =
470470 builder. msg ( Kind :: Build , compiler. stage , "miri sysroot" , compiler. host , target) ;
471471 builder. run ( & mut cargo) ;
@@ -596,7 +596,7 @@ impl Step for Miri {
596596 target,
597597 ) ;
598598 let _time = helpers:: timeit ( builder) ;
599- builder. run ( & mut cargo) ;
599+ builder. run ( cargo) ;
600600 }
601601 }
602602 }
@@ -661,11 +661,11 @@ impl Step for CargoMiri {
661661
662662 // Finally, pass test-args and run everything.
663663 cargo. arg ( "--" ) . args ( builder. config . test_args ( ) ) ;
664- let mut cargo = Command :: from ( cargo) ;
664+ let cargo = BootstrapCommand :: from ( cargo) ;
665665 {
666666 let _guard = builder. msg_sysroot_tool ( Kind :: Test , stage, "cargo-miri" , host, target) ;
667667 let _time = helpers:: timeit ( builder) ;
668- builder. run ( & mut cargo) ;
668+ builder. run ( cargo) ;
669669 }
670670 }
671671}
@@ -845,7 +845,7 @@ impl Step for RustdocJSStd {
845845 fn run ( self , builder : & Builder < ' _ > ) {
846846 let nodejs =
847847 builder. config . nodejs . as_ref ( ) . expect ( "need nodejs to run rustdoc-js-std tests" ) ;
848- let mut command = Command :: new ( nodejs) ;
848+ let mut command = BootstrapCommand :: new ( nodejs) ;
849849 command
850850 . arg ( builder. src . join ( "src/tools/rustdoc-js/tester.js" ) )
851851 . arg ( "--crate-name" )
@@ -879,7 +879,7 @@ impl Step for RustdocJSStd {
879879 builder. config . build ,
880880 self . target ,
881881 ) ;
882- builder. run ( & mut command) ;
882+ builder. run ( command) ;
883883 }
884884}
885885
@@ -1306,8 +1306,7 @@ impl Step for RunMakeSupport {
13061306 & [ ] ,
13071307 ) ;
13081308
1309- let mut cargo = Command :: from ( cargo) ;
1310- builder. run ( & mut cargo) ;
1309+ builder. run ( cargo) ;
13111310
13121311 let lib_name = "librun_make_support.rlib" ;
13131312 let lib = builder. tools_dir ( self . compiler ) . join ( lib_name) ;
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