Failed precompilation

[IlyaOrson]

Hello! There seems to be a problem with precompilation.

julia> using CatViews
INFO: Recompiling stale cache file /home/ilya/.julia/lib/v0.6/CatViews.ji for module CatViews.

WARNING: deprecated syntax "typealias FastContiguousSubArray{T,N,P,I<:Tuple{Union{Colon,UnitRange},Vararg{Any}}} SubArray{T,N,P,I,true}" at /home/ilya/.julia/v0.6/CatViews/src/splitview.jl:30.
Use "FastContiguousSubArray{T,N,P,I<:Tuple{Union{Colon,UnitRange},Vararg{Any}}} = SubArray{T,N,P,I,true}" instead.
WARNING: The call to compilecache failed to create a usable precompiled cache file for module CatViews. Got:
WARNING: Module Iterators uuid did not match cache file.
ERROR: LoadError: Declaring __precompile__(true) is only allowed in module files being imported.
Stacktrace:
 [1] __precompile__(::Bool) at ./loading.jl:335
 [2] __precompile__() at ./loading.jl:331
 [3] include_from_node1(::String) at ./loading.jl:569
 [4] eval(::Module, ::Any) at ./boot.jl:235
 [5] _require(::Symbol) at ./loading.jl:483
 [6] require(::Symbol) at ./loading.jl:398
while loading /home/ilya/.julia/v0.6/CatViews/src/CatViews.jl, in expression starting on line 1

julia> versioninfo()
Julia Version 0.6.1-pre.0
Commit dcf39a1dda (2017-06-19 13:06 UTC)
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: Intel(R) Core(TM) i7-4510U CPU @ 2.00GHz
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell)
  LAPACK: libopenblas64_
  LIBM: libopenlibm
  LLVM: libLLVM-3.9.1 (ORCJIT, haswell)

julia> Pkg.status("Iterators")
 - Iterators                     0.3.1

[ahwillia]

Just downloaded v0.6 - I can't reproduce it. Does it have something to do with?

WARNING: Module Iterators uuid did not match cache file.

If you figure this out - I'd happily accept a PR with a patch.

[IlyaOrson]

This appears to be an common problem when using Iterators.jl since the name is used also in Base.Iterators JuliaLang/julia/issues/21969.

Until the real problem is fixed we could use the practical fix and deprecate the use of Iterators.jl in favour of IterTools.jl JuliaCollections/Iterators.jl#104.