diff --git a/base/abstractarray.jl b/base/abstractarray.jl
index 5ee3ac1017a2d..5ec677a2db340 100644
--- a/base/abstractarray.jl
+++ b/base/abstractarray.jl
@@ -408,7 +408,11 @@ function checkbounds_linear_indices(::Type{Bool}, IA::Tuple{AbstractUnitRange,Va
     @_inline_meta
     checkindex(Bool, IA[1], i)
 end
-function checkbounds_linear_indices(::Type{Bool}, IA::Tuple, i::Union{Slice,Colon})
+function checkbounds_linear_indices(::Type{Bool}, IA::Tuple{Vararg{OneTo}}, i::Union{Slice,Colon})
+    partial_linear_indexing_warning_lookup(length(IA))
+    true
+end
+function checkbounds_linear_indices(::Type{Bool}, IA::Tuple{AbstractUnitRange,Vararg{AbstractUnitRange}}, i::Union{Slice,Colon})
     partial_linear_indexing_warning_lookup(length(IA))
     true
 end
diff --git a/base/twiceprecision.jl b/base/twiceprecision.jl
index 315eef05d9237..ea92f6c44d2d1 100644
--- a/base/twiceprecision.jl
+++ b/base/twiceprecision.jl
@@ -210,7 +210,7 @@ function getindex{T}(r::StepRangeLen{T,<:TwicePrecision,<:TwicePrecision}, s::Or
     @boundscheck checkbounds(r, s)
     soffset = 1 + round(Int, (r.offset - first(s))/step(s))
     soffset = clamp(soffset, 1, length(s))
-    ioffset = start(s) + (soffset-1)*step(s)
+    ioffset = first(s) + (soffset-1)*step(s)
     if step(s) == 1 || length(s) < 2
         newstep = r.step
     else