exit status: 134 with stderr:
swift: /home/buildnode/jenkins/workspace/oss-swift-5.1-package-linux-ubuntu-16_04/swift/lib/SIL/SILFunctionBuilder.cpp:108: swift::SILFunction *swift::SILFunctionBuilder::getOrCreateFunction(swift::SILLocation, swift::SILDeclRef, swift::ForDefinition_t, swift::ProfileCounter): Assertion `fn->getLoweredFunctionType() == constantType' failed. Stack dump: 0. Program arguments: /usr/bin/swift -frontend -interpret - -disable-objc-interop -module-name main 1. While emitting SIL for 'f()' (at <stdin>:6:1) /usr/bin/swift[0x48e9374] /usr/bin/swift[0x48e6f90] /usr/bin/swift[0x48e9798] /lib/x86_64-linux-gnu/libpthread.so.0(+0x11390)[0x7fcf15036390] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7fcf13775428] /lib/x86_64-linux-gnu/libc.so.6(abort+0x16a)[0x7fcf1377702a] /lib/x86_64-linux-gnu/libc.so.6(+0x2dbd7)[0x7fcf1376dbd7] /lib/x86_64-linux-gnu/libc.so.6(+0x2dc82)[0x7fcf1376dc82] /usr/bin/swift[0xdda2b0] /usr/bin/swift[0x89124c] /usr/bin/swift[0x891afd] /usr/bin/swift[0x897d7c] /usr/bin/swift[0x898da4] /usr/bin/swift[0x8993ab] /usr/bin/swift[0x5081da] /usr/bin/swift[0x504a8f] /usr/bin/swift[0x4a000d] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7fcf13760830] /usr/bin/swift[0x49fb89]