parser: interpolation if trimmed stop time is empty (before: empty st… #1227

Job	Run time
formatting	43s
macos (macos-x86_64, On)	7m 36s
msvc (Debug)	5m 40s
linux (linux-amd64-release, linux-amd64)	38s
macos (macos-arm64)	10m 49s
msvc (Release)	5m 22s
linux (linux-arm64-release, linux-arm64, qemu-aarch64-static)	39s
linux (clang-tidy)	1m 40s
linux (linux-sanitizer)	1m 27s
linux (linux-debug, valgrind --leak-check=full --error-exitcode=1)	2m 17s
	36m 51s

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