Also handle weird binaries without cargo-auditable nor DWARFs

[pombredanne]

Some stripped Rust binaries built without cargo-auditable and no DWARF debug symbols still have detailed paths to the Rust source files used use to build them.

In this exe:

• https://github.com/AdrianEddy/telemetry-parser/releases/download/v0.3.0/gyro2bb-linux64

I can see these paths:

• /home/runner/work/telemetry-parser/telemetry-parser/src/runcam/mod.rs
• /home/runner/work/telemetry-parser/telemetry-parser/src/blackbox/csv.rs