Crash on saving data from Profiler ProfilerDriver_CUSTOM_SaveProfile(ScriptingBackendNativeStringPtrOpaque*)

To repro:
0. Open sampleproject attached, open scene NetCube.
1. Start Deep profiling of Editor.
2. Enter playmode.
3. Wait for some time, exit playmode and save profiled data.

Actual result: Editor crashes with stack trace:

Thread 0 Crashed:: tid_307
0 ??? 0x00007fff6a6bceb6 0 + 140734978838198
1 libmonobdwgc-2.0.dylib 0x00000001390ce9dd mono_sigsegv_signal_handler + 443
2 com.unity3d.UnityEditor5.x 0x000000010a34d258 burst_signal_handler(int, __siginfo*, void*) + 232
3 ??? 0x00007fff6a76e5fd 0 + 140734979565053
4 com.apple.CoreFoundation 000000000000000000 0 + 0
5 libsystem_c.dylib 0x00007fff6a607891 __vfprintf + 5379
6 libsystem_c.dylib 0x00007fff6a62dad3 __v2printf + 475
7 libsystem_c.dylib 0x00007fff6a613ee7 _vsnprintf + 417
8 libsystem_c.dylib 0x00007fff6a613f90 vsnprintf + 68
9 com.unity3d.UnityEditor5.x 0x000000010a831ae6 VFormat(char const*, __va_list_tag*) + 86
10 com.unity3d.UnityEditor5.x 0x000000010a831c33 Format(char const*, ...) + 147
11 com.unity3d.UnityEditor5.x 0x000000010c9f8143 profiling::ProfilerSession::GenerateLoadSaveError(core::basic_string<char, core::StringStorageDefault<char> > const&, bool, core::basic_string<char, core::StringStorageDefault<char> >) + 51
12 com.unity3d.UnityEditor5.x 0x000000010c9f9005 profiling::ProfilerSession::SaveToFile(core::basic_string<char, core::StringStorageDefault<char> > const&) + 581
13 com.unity3d.UnityEditor5.x 0x000000010cb2ebf6 ProfilerDriver_CUSTOM_SaveProfile(ScriptingBackendNativeStringPtrOpaque*) + 214
14 ???

Reproduces in 2020.2.0a19