I think Iterators is part of the base distribution. Correct? Alas, here it tells me
julia> using Iterators
[ Info: Precompiling Iterators [a4bce56a-f44e-563f-a45f-5312daf41243]
ERROR: LoadError: syntax: extra token "TakeStrict" after end of expression
Stacktrace:
[1] include at ./boot.jl:317 [inlined]
[2] include_relative(::Module, ::String) at ./loading.jl:1038
[3] include(::Module, ::String) at ./sysimg.jl:29
[4] top-level scope at none:2
[5] eval at ./boot.jl:319 [inlined]
[6] eval(::Expr) at ./client.jl:389
[7] top-level scope at ./none:3
in expression starting at /Users/ivo/.julia/packages/Iterators/hSc9y/src/Iterators.jl:60