[JitDiff X64] [EgorBo] Remove a few unsafe bits in BCL

[MihuBot]

Job completed in 14 minutes 15 seconds (remote runner delay: 47 seconds).

Using arguments: -NoPRLink -nuget

ERROR: System.IO.IOException: No space left on device
   at Interop.ThrowExceptionForIoErrno(ErrorInfo errorInfo, String path, Boolean isDirError)
   at System.IO.FileSystem.CopyFile(String sourceFullPath, String destFullPath, Boolean overwrite)
   at Runner.Jobs.JitDiffJob.CopyDirectory(String source, String destination) in /home/runtime-utils/Runner/Jobs/JitDiffJob.cs:line 346
   at Runner.Jobs.JitDiffJob.<>c__DisplayClass12_0.<<CollectFrameworksDiffsAsync>b__2>d.MoveNext() in /home/runtime-utils/Runner/Jobs/JitDiffJob.cs:line 278
--- End of stack trace from previous location ---
   at System.Threading.Tasks.Parallel.<>c__49`1.<<ForAsync>b__49_2>d.MoveNext()
--- End of stack trace from previous location ---
   at Runner.Jobs.JitDiffJob.<CollectFrameworksDiffsAsync>g__DiffExtraProjectsAsync|12_0(String coreRootFolder, String checkedClrFolder, String outputFolder) in /home/runtime-utils/Runner/Jobs/JitDiffJob.cs:line 273
   at Runner.Jobs.JitDiffJob.CollectFrameworksDiffsAsync() in /home/runtime-utils/Runner/Jobs/JitDiffJob.cs:line 243
   at Runner.Jobs.JitDiffJob.RunJobCoreAsync() in /home/runtime-utils/Runner/Jobs/JitDiffJob.cs:line 38
   at Runner.JobBase.RunJobAsync() in /home/runtime-utils/Runner/JobBase.cs:line 132

Artifacts:

• build-clr-checked-main.zip (87 MB)
• build-artifacts-main.zip (710 MB)
• build-clr-checked-pr.zip (87 MB)
• build-artifacts-pr.zip (94 MB)

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