agent/rustjail: remove rustjail::errors

`anyhow` replaces `rustjail::errors`, hence it's not longer needed

Signed-off-by: Julio Montes <julio.montes@intel.com>

src/agent/rustjail/src/container.rs

@@ -14,7 +14,7 @@ use std::os::unix::io::RawFd;
 use std::path::{Path, PathBuf};
 use std::time::SystemTime;
 // use crate::sync::Cond;
-use anyhow::{anyhow, Context, Result};
+use anyhow::{anyhow, bail, Context, Result};
 use libc::pid_t;
 use oci::{LinuxDevice, LinuxIDMapping};
 use std::clone::Clone;

src/agent/rustjail/src/errors.rs

@@ -1,34 +0,0 @@
-// Copyright (c) 2019 Ant Financial
-//
-// SPDX-License-Identifier: Apache-2.0
-//
-
-// define errors here
-
-error_chain! {
-    types {
-        Error, ErrorKind, ResultExt, Result;
-    }
-    // foreign error conv to chain error
-    foreign_links {
-        Io(std::io::Error);
-        Nix(nix::Error);
-        Ffi(std::ffi::NulError);
-        Caps(caps::errors::Error);
-        Serde(serde_json::Error);
-        FromUTF8(std::string::FromUtf8Error);
-        Parse(std::num::ParseIntError);
-        Scanfmt(scan_fmt::parse::ScanError);
-        Ip(std::net::AddrParseError);
-        Regex(regex::Error);
-        EnvVar(std::env::VarError);
-        UTF8(std::str::Utf8Error);
-    }
-    // define new errors
-    errors {
-        ErrorCode(t: String) {
-            description("Error Code")
-            display("Error Code: '{}'", t)
-        }
-    }
-}

src/agent/rustjail/src/lib.rs

@@ -13,7 +13,6 @@
 #![allow(non_upper_case_globals)]
 // #![allow(unused_comparisons)]
 #[macro_use]
-extern crate error_chain;
 extern crate serde;
 extern crate serde_json;
 #[macro_use]
@@ -45,7 +44,6 @@ macro_rules! sl {
 pub mod capabilities;
 pub mod cgroups;
 pub mod container;
-pub mod errors;
 pub mod mount;
 pub mod process;
 pub mod specconv;

src/agent/rustjail/src/mount.rs

@@ -3,7 +3,7 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 
-use anyhow::{anyhow, Context, Error, Result};
+use anyhow::{anyhow, bail, Context, Error, Result};
 use libc::uid_t;
 use nix::errno::Errno;
 use nix::fcntl::{self, OFlag};