llvm-cov version conflict

[llooFlashooll]

Hi, I really appreciate your work. However, I encountered this issue when I used cargo llvm-cov report.

warning: /fuzzing/../target/multipleTargets-2790540-18405399629466595977_0.profraw: raw profile version mismatch: Profile uses raw profile format version = 8; expected version = 10
PLEASE update this tool to version in the raw profile, or regenerate raw profile with expected version.
error: no profile can be merged
error: failed to merge profile data: process didn't exit successfully: `/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin/llvm-profdata merge -sparse -f /fuzzing/../target/multipleTargets-profraw-list -o /fuzzing/../target/multipleTargets.profdata` (exit status: 1)

How can I address this issue?

[taiki-e]

Same issue as #379

Please make sure that a compatible LLVM version is used.