broken on Julia v0.5

[tanmaykm]

Executing runtests.jl I get:

ERROR: LoadError: error in method definition: function Serializer.deserialize must be explicitly imported to be extended
 in include(::ASCIIString) at ./boot.jl:264
 in include_from_node1(::ASCIIString) at ./loading.jl:417
 in eval(::Module, ::Any) at ./boot.jl:267
 [inlined code] from ./sysimg.jl:14
 in process_options(::Base.JLOptions) at ./client.jl:239
 in _start() at ./client.jl:318
while loading /home/tan/.julia/v0.5/ClusterDicts/src/ClusterDicts.jl, in expression starting on line 155
ERROR: LoadError: Failed to precompile ClusterDicts to /home/tan/.julia/lib/v0.5/ClusterDicts.ji
 in error(::ASCIIString) at ./error.jl:21
 in compilecache(::ASCIIString) at ./loading.jl:496
 in require(::Symbol) at ./loading.jl:355
 in include(::ASCIIString) at ./boot.jl:264
 in include_from_node1(::UTF8String) at ./loading.jl:417
 in process_options(::Base.JLOptions) at ./client.jl:262
 in _start() at ./client.jl:318
while loading /home/tan/.julia/v0.5/ClusterDicts/test/runtests.jl, in expression starting on line 2

Fixing the deserialize import issue brings up other errors.