Update faerie, remove usage of failure (#591)

This commit removes the usage of the `failure` crate and finishes up the
final pieces of the migration to `std::error::Error` and `anyhow`. The
`faerie` crate was updated to pull in its migration from `failure` to
`anyhow` as well.

crates/debug/src/transform/simulate.rs

@@ -5,9 +5,9 @@ use crate::read_debuginfo::WasmFileInfo;
 use crate::{HashMap, HashSet};
 use alloc::string::String;
 use alloc::vec::Vec;
+use anyhow::Error;
 use cranelift_entity::EntityRef;
 use cranelift_wasm::get_vmctx_value_label;
-use failure::Error;
 use gimli::write;
 use gimli::{self, LineEncoding};
 use std::path::PathBuf;