==27434==ERROR: AddressSanitizer: heap-use-after-free on address
0x604000535850 at pc 0x7fecf16970c1 bp 0x7fffa6344e70 sp 0x7fffa6344e68
READ of size 8 at 0x604000535850 thread T0
    #0 0x7fecf16970c0 in KDevelop::TopDUContext::problems() const
/home/kfunk/devel/src/kf5/kdevplatform-stable/language/duchain/topducontext.cpp:924:8
    #1 0x7fecf119134b in
KDevelop::StaticAssistantsManager::Private::checkAssistantForProblems(KDevelop::TopDUContext*)
/home/kfunk/devel/src/kf5/kdevplatform-stable/language/assistant/staticassistantsmanager.cpp:288:112
    #2 0x7fecf1190f30 in
KDevelop::StaticAssistantsManager::Private::updateReady(KDevelop::IndexedString
const&, KDevelop::ReferencedTopDUContext const&)
/home/kfunk/devel/src/kf5/kdevplatform-stable/language/assistant/staticassistantsmanager.cpp:251:9
0x604000535850 is located 0 bytes inside of 48-byte region
[0x604000535850,0x604000535880)

freed by thread T0 here:
    #0 0x4e2b82 in operator delete(void*)
(/home/kfunk/devel/install/kf5-stable/bin/kdevelop+0x4e2b82)
    #1 0x7fecbc09fa25 in ClangDUContext<KDevelop::TopDUContext,
140>::~ClangDUContext()
/home/kfunk/devel/src/kf5/kdevelop-stable/languages/clang/duchain/clangducontext.h:29:7
    #2 0x7fecf169582f in KDevelop::TopDUContext::deleteSelf()
/home/kfunk/devel/src/kf5/kdevplatform-stable/language/duchain/topducontext.cpp:580:3
    #3 0x7fecf1407bc7 in
KDevelop::DUChainPrivate::removeDocumentChainFromMemory(KDevelop::TopDUContext*)
/home/kfunk/devel/src/kf5/kdevplatform-stable/language/duchain/duchain.cpp:407:5
    #4 0x7fecf141c74a in KDevelop::DUChainPrivate::clear()
/home/kfunk/devel/src/kf5/kdevplatform-stable/language/duchain/duchain.cpp:370:7
    #5 0x7fecf13ffa55 in KDevelop::DUChain::shutdown()
/home/kfunk/devel/src/kf5/kdevplatform-stable/language/duchain/duchain.cpp:1598:3
    #6 0x7fecfac6ac45 in KDevelop::Core::cleanup()
/home/kfunk/devel/src/kf5/kdevplatform-stable/shell/core.cpp:454:9
    #7 0x7fecfac69230 in KDevelop::Core::shutdown()

previously allocated by thread T8 (Queue(0x6040004) here:
    #0 0x4e25c2 in operator new(unsigned long)
(/home/kfunk/devel/install/kf5-stable/bin/kdevelop+0x4e25c2)
    #1 0x7fecbc0a1dcc in (anonymous
namespace)::createTopContext(KDevelop::IndexedString const&,
ClangParsingEnvironment const&)
/home/kfunk/devel/src/kf5/kdevelop-stable/languages/clang/duchain/clanghelpers.cpp:76:38
    #2 0x7fecbc0a1dcc in ClangHelpers::buildDUChain(void*,
QMultiHash<void*, Import> const&, ParseSession const&,
KDevelop::TopDUContext::Features, QHash<void*,
KDevelop::ReferencedTopDUContext>&, ClangIndex*)
/home/kfunk/devel/src/kf5/kdevelop-stable/languages/clang/duchain/clanghelpers.cpp:127