CombinedParsers >=0.1.2 broken for Julia 1.3.1 and 1.4.1 (works for 1.4.2, 1.5.0)

[rick2047]

I had run some rudimentaly experiments with Julia 1.4.1 before but yesterday after updating CombinedParsers to 0.1.2 it crashes the REPL. Here is the error. (BTW, it works properly in 1.5)

(@v1.4) pkg> build CombinedParsers
   Building CodecZlib → `C:\Users\pmathur\.julia\packages\CodecZlib\5t9zO\deps\build.log`
   Building TimeZones → `C:\Users\pmathur\.julia\packages\TimeZones\v0mfN\deps\build.log`

(@v1.4) pkg> st CombinedParsers
Status `C:\Users\pmathur\.julia\environments\v1.4\Project.toml`
  [5ae71ed2] CombinedParsers v0.1.2
julia> using CombinedParsers
[ Info: Precompiling CombinedParsers [5ae71ed2-6f8a-4ed1-b94f-e14e8158f19e]

signal (22): SIGABRT
in expression starting at REPL[4]:1
crt_sig_handler at /cygdrive/d/buildbot/worker/package_win64/build/src\signals-win.c:92
raise at C:\WINDOWS\System32\msvcrt.dll (unknown line)
abort at C:\WINDOWS\System32\msvcrt.dll (unknown line)
jl_intref at /cygdrive/d/buildbot/worker/package_win64/build/src\typemap.c:194 [inlined]
mtcache_hash_lookup at /cygdrive/d/buildbot/worker/package_win64/build/src\typemap.c:255 [inlined]
jl_typemap_intersection_visitor at /cygdrive/d/buildbot/worker/package_win64/build/src\typemap.c:545
jl_method_table_insert at /cygdrive/d/buildbot/worker/package_win64/build/src\gf.c:1691
jl_insert_methods at /cygdrive/d/buildbot/worker/package_win64/build/src\dump.c:2267 [inlined]
_jl_restore_incremental at /cygdrive/d/buildbot/worker/package_win64/build/src\dump.c:3269
jl_restore_incremental at /cygdrive/d/buildbot/worker/package_win64/build/src\dump.c:3314
_include_from_serialized at .\loading.jl:681
_require_from_serialized at .\loading.jl:748
_require at .\loading.jl:1039
require at .\loading.jl:927
require at .\loading.jl:922
jl_apply at /cygdrive/d/buildbot/worker/package_win64/build/src\julia.h:1700 [inlined]
call_require at /cygdrive/d/buildbot/worker/package_win64/build/src\toplevel.c:399 [inlined]
eval_import_path at /cygdrive/d/buildbot/worker/package_win64/build/src\toplevel.c:436
jl_toplevel_eval_flex at /cygdrive/d/buildbot/worker/package_win64/build/src\toplevel.c:656
jl_toplevel_eval_flex at /cygdrive/d/buildbot/worker/package_win64/build/src\toplevel.c:764
jl_toplevel_eval at /cygdrive/d/buildbot/worker/package_win64/build/src\toplevel.c:823 [inlined]
jl_toplevel_eval_in at /cygdrive/d/buildbot/worker/package_win64/build/src\toplevel.c:843
eval at .\boot.jl:331
eval_user_input at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.4\REPL\src\REPL.jl:86
macro expansion at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.4\REPL\src\REPL.jl:118 [inlined]
#26 at .\task.jl:358
jl_apply at /cygdrive/d/buildbot/worker/package_win64/build/src\julia.h:1700 [inlined]
start_task at /cygdrive/d/buildbot/worker/package_win64/build/src\task.c:687
Allocations: 20912351 (Pool: 20908773; Big: 3578); GC: 20

[gkappler]

I was able to reproduce the crash on Julia 1.3.1, 1.4.1 for linux too.
Please update to Julia 1.4.2 or 1.5.0.
The Project.toml of 0.1.4 reflects this in the Julia compat section.

I highly appreciate any pointer to next steps I can take to investigate and work around the issue in older julia versions.
If you require Julia 1.3.1 or 1.4.1 specifically, please comment on the issue, I will then dig into the cause.