ldc2 crashes when trying to compile my app

[Per Nordlöw]

per:~/Work/knet] $ dub run --compiler=ldmd2 
--build=release-nobounds
The determined compiler type "ldc" doesn't match the expected 
type "dmd". This will probably result in build errors.
WARNING: A deprecated branch based version specification is used 
for the dependency gmp-d. Please use numbered versions instead. 
Also note that you can still use the dub.selections.json file to 
override a certain dependency to use a branch instead.
WARNING: A deprecated branch based version specification is used 
for the dependency knet:phobos-next. Please use numbered versions 
instead. Also note that you can still use the dub.selections.json 
file to override a certain dependency to use a branch instead.
Warning: License in subpackage knet:phobos-next is different than 
it's parent package, this is discouraged.
Performing "release-nobounds" build using ldmd2 for x86_64.
gmp-d ~master: target for configuration "library" is up to date.
knet:phobos-next ~master: building configuration "library"...
knet ~master: building configuration "application"...
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_ZN4llvm3sys15PrintStackTraceERNS_11raw_ostreamE+0x1a)[0x28919ba]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_ZN4llvm3sys17RunSignalHandlersEv+0x3e)[0x288fc7e]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2[0x288fda2]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x12890)[0x7f998c24e890]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z7DtoLValP6DValue+0xa)[0xcebd3a]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z15DtoCallFunctionR3LocP4TypeP6DValueP5ArrayIP10ExpressionEPN4llvm5ValueE+0xb34)[0xc86fe4]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2[0xc90eab]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2[0xc9116f]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z6toElemP10Expression+0x6d)[0xc8ca0d]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2[0xc92426]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z6toElemP10Expression+0x6d)[0xc8ca0d]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z17DtoVarDeclarationP14VarDeclaration+0x7e)[0xc4882e]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z17DtoDeclarationExpP7Dsymbol+0x1d1)[0xc4b8e1]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2[0xc8e806]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z10toElemDtorP10Expression+0x6d)[0xc8dced]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2[0xc79b40]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2[0xc7b2b4]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2[0xc7b2b4]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2[0xc7acfe]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z14Statement_toIRP9StatementP7IRState+0x24)[0xc79744]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z17DtoDefineFunctionP15FuncDeclarationb+0xc49)[0xc3ee49]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2[0xc33d63]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z19Declaration_codegenP7DsymbolP7IRState+0x24)[0xc367a4]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z13codegenModuleP7IRStateP6Module+0xa5)[0xc56135]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_ZN3ldc13CodeGenerator4emitEP6Module+0x99)[0xd02939]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z14codegenModulesR5ArrayIP6ModuleE+0x186)[0xcd8716]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z13mars_mainBodyR5ArrayIPKcES3_+0x1aa0)[0xafaa60]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_Z7cppmainiPPc+0x1e17)[0xcd6507]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZv+0x50)[0x29d67c0]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2(_d_run_main+0x1a6)[0x29d6646]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7f998b8b6b97]
/home/per/.local/ldc2-1.11.0-linux-x86_64/bin/ldc2[0xa22525]

What should I grep for when trying to Dustmite this?