diff --git a/src/test/debuginfo/rc_arc.rs b/src/test/debuginfo/rc_arc.rs
index 37e870d8a8e..c05c565d956 100644
--- a/src/test/debuginfo/rc_arc.rs
+++ b/src/test/debuginfo/rc_arc.rs
@@ -58,7 +58,7 @@
 
 // cdb-command:dx slice_rc,d
 // cdb-check:slice_rc,d       : { len=3 } [Type: alloc::rc::Rc<slice$<u32> >]
-// cdb-check:    [Length]         : 3 [Type: unsigned __int64]
+// cdb-check:    [Length]         : 3 [Type: [...]]
 // cdb-check:    [Reference count] : 41 [Type: core::cell::Cell<usize>]
 // cdb-check:    [Weak reference count] : 2 [Type: core::cell::Cell<usize>]
 // cdb-check:    [0]              : 1 [Type: u32]
@@ -67,7 +67,7 @@
 
 // cdb-command:dx slice_rc_weak,d
 // cdb-check:slice_rc_weak,d  : { len=3 } [Type: alloc::rc::Weak<slice$<u32> >]
-// cdb-check:    [Length]         : 3 [Type: unsigned __int64]
+// cdb-check:    [Length]         : 3 [Type: [...]]
 // cdb-check:    [Reference count] : 41 [Type: core::cell::Cell<usize>]
 // cdb-check:    [Weak reference count] : 2 [Type: core::cell::Cell<usize>]
 // cdb-check:    [0]              : 1 [Type: u32]
@@ -86,7 +86,7 @@
 
 // cdb-command:dx slice_arc,d
 // cdb-check:slice_arc,d      : { len=3 } [Type: alloc::sync::Arc<slice$<u32> >]
-// cdb-check:    [Length]         : 3 [Type: unsigned __int64]
+// cdb-check:    [Length]         : 3 [Type: [...]]
 // cdb-check:    [Reference count] : 61 [Type: core::sync::atomic::AtomicUsize]
 // cdb-check:    [Weak reference count] : 2 [Type: core::sync::atomic::AtomicUsize]
 // cdb-check:    [0]              : 4 [Type: u32]
@@ -95,7 +95,7 @@
 
 // cdb-command:dx slice_arc_weak,d
 // cdb-check:slice_arc_weak,d : { len=3 } [Type: alloc::sync::Weak<slice$<u32> >]
-// cdb-check:    [Length]         : 3 [Type: unsigned __int64]
+// cdb-check:    [Length]         : 3 [Type: [...]]
 // cdb-check:    [Reference count] : 61 [Type: core::sync::atomic::AtomicUsize]
 // cdb-check:    [Weak reference count] : 2 [Type: core::sync::atomic::AtomicUsize]
 // cdb-check:    [0]              : 4 [Type: u32]