Build failure in the latest dmd with dub

[Sobaya]

On Saturday, 16 March 2019 at 13:45:01 UTC, Bastiaan Veelo wrote:
> On Saturday, 16 March 2019 at 13:40:19 UTC, Sobaya wrote:
>> I recently updated dmd to version 2.085.0.
>>
>> But it breaks on compiling my small program.
>>
>>
>> struct A { float el; }
>> struct B { this(A[1]...) {} }
>>
>>
>> It successfully works using only dmd, but it fails using with 
>> dub.
>>
>> Is this a bug?
>
> Could it be some flag that dub uses and you don’t, or v.v.? Use 
> the -v flag to dub to see how it invokes the compiler.
>
> Bastiaan.

Using "-v" flags and build with dub, it outputs below:

Performing "debug" build using 
/home/sobaya/dlang/dmd-2.085.0/linux/bin64/dmd for x86_64.
test ~master: building configuration "application"...
predefs   Have_test DigitalMars Posix linux ELFv1 CRuntime_Glibc 
CppRuntime_Gcc LittleEndian D_Version2 all D_SIMD 
D_InlineAsm_X86_64 X86_64 D_LP64 D_PIC assert D_ModuleInfo 
D_Exceptions D_TypeInfo D_HardFloat
binary    /home/sobaya/dlang/dmd-2.085.0/linux/bin64/dmd
version   v2.085.0
config    /home/sobaya/dlang/dmd-2.085.0/linux/bin64/dmd.conf
DFLAGS    
-I/home/sobaya/dlang/dmd-2.085.0/linux/bin64/../../src/phobos 
-I/home/sobaya/dlang/dmd-2.085.0/linux/bin64/../../src/druntime/import -L-L/home/sobaya/dlang/dmd-2.085.0/linux/bin64/../lib64 -L--export-dynamic -fPIC
parse     app
importall app
import    
object	(/home/sobaya/dlang/dmd-2.085.0/linux/bin64/../../src/druntime/import/object.d)
import    
core.internal.hash	(/home/sobaya/dlang/dmd-2.085.0/linux/bin64/../../src/druntime/import/core/internal/hash.d)
import    
core.internal.traits	(/home/sobaya/dlang/dmd-2.085.0/linux/bin64/../../src/druntime/import/core/internal/traits.d)
import    
core.internal.convert	(/home/sobaya/dlang/dmd-2.085.0/linux/bin64/../../src/druntime/import/core/internal/convert.d)
semantic  app
entry     main      	source/app.d
semantic2 app
semantic3 app
code      app
function  app.A.__xopEquals
function  app.A.__xtoHash
function  app.B.this
/home/sobaya/dlang/dmd-2.085.0/linux/bin64/dmd failed with exit 
code -4.