You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: stacktrace.rs
    path of file: ./repos/LibAFL/libafl/src/observers
    
    the code of the file until where you have to start completion: //! the ``StacktraceObserver`` looks up the stacktrace on the execution thread and computes a hash for it for dedupe

use alloc::{
    string::{String, ToString},
    vec::Vec,
};
#[cfg(feature = "casr")]
use std::{
    collections::hash_map::DefaultHasher,
    hash::{Hash, Hasher},
};
use std::{
    fmt::Debug,
    fs::{self, File},

    
    pub fn parse_asan_output_from_asan_log_file(&mut self, pid: i32) -> Result<(), Error> {
        let log_path = format!("{ASAN_LOG_PATH}.{pid}");
        let mut asan_output = File::open(Path::new(&log_path))?;

        let mut buf = String::new();
        asan_output.read_to_string(&mut buf)?;
        fs::remove_file(&log_path)?;

        self.parse_asan_output(&buf);
        Ok(())
    }