Dec 17 23:55:23.445 INFO checking gavynriebau/xor against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 23:55:23.445 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/gavynriebau/xor:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 23:55:23.964 INFO [stdout] 2387f4f7017fe54b4954183947d5488340b2254e819b81f1c58f0d16c35090c0
Dec 17 23:55:23.970 INFO running `"docker" "start" "-a" "2387f4f7017fe54b4954183947d5488340b2254e819b81f1c58f0d16c35090c0"`
Dec 17 23:55:25.960 INFO [stderr]     Checking rand v0.3.18
Dec 17 23:55:25.960 INFO [stderr]     Checking rand v0.4.2
Dec 17 23:55:25.964 INFO [stderr]     Checking number_prefix v0.2.7
Dec 17 23:55:25.968 INFO [stderr]     Checking xor-utils v0.6.0
Dec 17 23:55:25.968 INFO [stderr]     Checking textwrap v0.6.0
Dec 17 23:55:25.972 INFO [stderr]     Checking regex v0.2.2
Dec 17 23:55:27.400 INFO [stderr]     Checking clap v2.25.0
Dec 17 23:55:30.284 INFO [stderr]     Checking tempdir v0.3.5
Dec 17 23:55:30.916 INFO [stderr]     Checking filesystem v0.4.2
Dec 17 23:55:31.756 INFO [stderr]     Checking env_logger v0.4.3
Dec 17 23:55:35.892 INFO [stderr]     Checking xor v1.4.5 (/opt/crater/workdir)
Dec 17 23:55:36.316 INFO [stderr] warning: unused import: `std::fs`
Dec 17 23:55:36.316 INFO [stderr]   --> src/main.rs:16:5
Dec 17 23:55:36.316 INFO [stderr]    |
Dec 17 23:55:36.316 INFO [stderr] 16 | use std::fs;
Dec 17 23:55:36.316 INFO [stderr]    |     ^^^^^^^
Dec 17 23:55:36.317 INFO [stderr]    |
Dec 17 23:55:36.317 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 23:55:36.320 INFO [stderr] 
Dec 17 23:55:36.376 INFO [stderr] warning: unused import: `std::fs`
Dec 17 23:55:36.376 INFO [stderr]   --> src/main.rs:16:5
Dec 17 23:55:36.376 INFO [stderr]    |
Dec 17 23:55:36.376 INFO [stderr] 16 | use std::fs;
Dec 17 23:55:36.376 INFO [stderr]    |     ^^^^^^^
Dec 17 23:55:36.376 INFO [stderr]    |
Dec 17 23:55:36.376 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 23:55:36.376 INFO [stderr] 
Dec 17 23:55:36.376 INFO [stderr] warning: unused import: `Cursor`
Dec 17 23:55:36.376 INFO [stderr]   --> src/main.rs:18:28
Dec 17 23:55:36.376 INFO [stderr]    |
Dec 17 23:55:36.376 INFO [stderr] 18 | use std::io::{Write, Read, Cursor};
Dec 17 23:55:36.376 INFO [stderr]    |                            ^^^^^^
Dec 17 23:55:36.376 INFO [stderr] 
Dec 17 23:55:36.511 INFO [stderr] warning: unused variable: `mode`
Dec 17 23:55:36.511 INFO [stderr]   --> src/main.rs:89:9
Dec 17 23:55:36.511 INFO [stderr]    |
Dec 17 23:55:36.511 INFO [stderr] 89 |     let mode = if matches.is_present("decrypt") {
Dec 17 23:55:36.511 INFO [stderr]    |         ^^^^ help: consider using `_mode` instead
Dec 17 23:55:36.511 INFO [stderr]    |
Dec 17 23:55:36.511 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 23:55:36.511 INFO [stderr] 
Dec 17 23:55:36.511 INFO [stderr] warning: unused variable: `key_bytes`
Dec 17 23:55:36.511 INFO [stderr]   --> src/main.rs:96:9
Dec 17 23:55:36.511 INFO [stderr]    |
Dec 17 23:55:36.511 INFO [stderr] 96 |     let key_bytes = get_key_bytes(&matches);
Dec 17 23:55:36.511 INFO [stderr]    |         ^^^^^^^^^ help: consider using `_key_bytes` instead
Dec 17 23:55:36.511 INFO [stderr] 
Dec 17 23:55:36.511 INFO [stderr] warning: unused variable: `matches`
Dec 17 23:55:36.511 INFO [stderr]    --> src/main.rs:310:22
Dec 17 23:55:36.511 INFO [stderr]     |
Dec 17 23:55:36.511 INFO [stderr] 310 | fn get_key_bytes<'a>(matches: &'a ArgMatches<'a>) -> Vec<u8> {
Dec 17 23:55:36.511 INFO [stderr]     |                      ^^^^^^^ help: consider using `_matches` instead
Dec 17 23:55:36.511 INFO [stderr] 
Dec 17 23:55:36.512 INFO [stderr] warning: unused variable: `mode`
Dec 17 23:55:36.512 INFO [stderr]   --> src/main.rs:89:9
Dec 17 23:55:36.512 INFO [stderr]    |
Dec 17 23:55:36.512 INFO [stderr] 89 |     let mode = if matches.is_present("decrypt") {
Dec 17 23:55:36.512 INFO [stderr]    |         ^^^^ help: consider using `_mode` instead
Dec 17 23:55:36.512 INFO [stderr]    |
Dec 17 23:55:36.512 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 23:55:36.512 INFO [stderr] 
Dec 17 23:55:36.512 INFO [stderr] warning: unused variable: `key_bytes`
Dec 17 23:55:36.512 INFO [stderr]   --> src/main.rs:96:9
Dec 17 23:55:36.512 INFO [stderr]    |
Dec 17 23:55:36.512 INFO [stderr] 96 |     let key_bytes = get_key_bytes(&matches);
Dec 17 23:55:36.512 INFO [stderr]    |         ^^^^^^^^^ help: consider using `_key_bytes` instead
Dec 17 23:55:36.512 INFO [stderr] 
Dec 17 23:55:36.518 INFO [stderr] warning: unused variable: `matches`
Dec 17 23:55:36.518 INFO [stderr]    --> src/main.rs:310:22
Dec 17 23:55:36.518 INFO [stderr]     |
Dec 17 23:55:36.518 INFO [stderr] 310 | fn get_key_bytes<'a>(matches: &'a ArgMatches<'a>) -> Vec<u8> {
Dec 17 23:55:36.518 INFO [stderr]     |                      ^^^^^^^ help: consider using `_matches` instead
Dec 17 23:55:36.518 INFO [stderr] 
Dec 17 23:55:36.549 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:55:36.550 INFO [stderr]    --> src/main.rs:311:9
Dec 17 23:55:36.550 INFO [stderr]     |
Dec 17 23:55:36.550 INFO [stderr] 311 |     let mut key_bytes : Vec<u8> = Vec::new();
Dec 17 23:55:36.550 INFO [stderr]     |         ----^^^^^^^^^
Dec 17 23:55:36.550 INFO [stderr]     |         |
Dec 17 23:55:36.550 INFO [stderr]     |         help: remove this `mut`
Dec 17 23:55:36.550 INFO [stderr]     |
Dec 17 23:55:36.550 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 23:55:36.550 INFO [stderr] 
Dec 17 23:55:36.556 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:55:36.556 INFO [stderr]    --> src/main.rs:311:9
Dec 17 23:55:36.556 INFO [stderr]     |
Dec 17 23:55:36.556 INFO [stderr] 311 |     let mut key_bytes : Vec<u8> = Vec::new();
Dec 17 23:55:36.556 INFO [stderr]     |         ----^^^^^^^^^
Dec 17 23:55:36.556 INFO [stderr]     |         |
Dec 17 23:55:36.556 INFO [stderr]     |         help: remove this `mut`
Dec 17 23:55:36.556 INFO [stderr]     |
Dec 17 23:55:36.556 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 23:55:36.556 INFO [stderr] 
Dec 17 23:55:36.556 INFO [stderr] warning: struct is never constructed: `StdoutWriter`
Dec 17 23:55:36.556 INFO [stderr]   --> src/stdout_writer.rs:11:1
Dec 17 23:55:36.556 INFO [stderr]    |
Dec 17 23:55:36.556 INFO [stderr] 11 | pub struct StdoutWriter;
Dec 17 23:55:36.556 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.556 INFO [stderr]    |
Dec 17 23:55:36.556 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 23:55:36.556 INFO [stderr] 
Dec 17 23:55:36.556 INFO [stderr] warning: function is never used: `encrypt_reader`
Dec 17 23:55:36.556 INFO [stderr]    --> src/main.rs:139:1
Dec 17 23:55:36.556 INFO [stderr]     |
Dec 17 23:55:36.556 INFO [stderr] 139 | fn encrypt_reader(input : &mut Read, key : &Vec<u8>, output : &mut Write) {
Dec 17 23:55:36.556 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.556 INFO [stderr] 
Dec 17 23:55:36.556 INFO [stderr] warning: function is never used: `xor_file`
Dec 17 23:55:36.556 INFO [stderr]    --> src/main.rs:185:1
Dec 17 23:55:36.556 INFO [stderr]     |
Dec 17 23:55:36.556 INFO [stderr] 185 | fn xor_file<T : FileSystem>(fs : &T, file_path : &Path, key : &Vec<u8>, mode : &Mode) {
Dec 17 23:55:36.556 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.556 INFO [stderr] 
Dec 17 23:55:36.556 INFO [stderr] warning: function is never used: `xor_dir`
Dec 17 23:55:36.556 INFO [stderr]    --> src/main.rs:203:1
Dec 17 23:55:36.556 INFO [stderr]     |
Dec 17 23:55:36.556 INFO [stderr] 203 | fn xor_dir<T : FileSystem>(fs : &T, dir_path : &Path, key : &Vec<u8>, mode : &Mode) {
Dec 17 23:55:36.556 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.556 INFO [stderr] 
Dec 17 23:55:36.556 INFO [stderr] warning: function is never used: `rename_entry`
Dec 17 23:55:36.556 INFO [stderr]    --> src/main.rs:237:1
Dec 17 23:55:36.556 INFO [stderr]     |
Dec 17 23:55:36.556 INFO [stderr] 237 | fn rename_entry<T : FileSystem>(fs : &T, entry : &Path, key : &Vec<u8>, mode : &Mode) {
Dec 17 23:55:36.556 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.556 INFO [stderr] 
Dec 17 23:55:36.556 INFO [stderr] warning: function is never used: `repeat_key`
Dec 17 23:55:36.556 INFO [stderr]    --> src/main.rs:281:1
Dec 17 23:55:36.556 INFO [stderr]     |
Dec 17 23:55:36.556 INFO [stderr] 281 | fn repeat_key(key : &Vec<u8>, required_len : usize) -> Vec<u8> {
Dec 17 23:55:36.556 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.556 INFO [stderr] 
Dec 17 23:55:36.556 INFO [stderr] warning: function is never used: `to_hex_string`
Dec 17 23:55:36.556 INFO [stderr]    --> src/main.rs:297:1
Dec 17 23:55:36.556 INFO [stderr]     |
Dec 17 23:55:36.556 INFO [stderr] 297 | fn to_hex_string(bytes: Vec<u8>) -> String {
Dec 17 23:55:36.556 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.556 INFO [stderr] 
Dec 17 23:55:36.556 INFO [stderr] warning: function is never used: `from_hex_string`
Dec 17 23:55:36.556 INFO [stderr]    --> src/main.rs:306:1
Dec 17 23:55:36.556 INFO [stderr]     |
Dec 17 23:55:36.556 INFO [stderr] 306 | fn from_hex_string(hex : &String) -> Vec<u8> {
Dec 17 23:55:36.557 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.557 INFO [stderr] 
Dec 17 23:55:36.557 INFO [stderr] warning: function is never used: `show_prompt`
Dec 17 23:55:36.557 INFO [stderr]    --> src/main.rs:406:1
Dec 17 23:55:36.557 INFO [stderr]     |
Dec 17 23:55:36.557 INFO [stderr] 406 | fn show_prompt() -> char {
Dec 17 23:55:36.557 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.557 INFO [stderr] 
Dec 17 23:55:36.557 INFO [stderr] warning: function is never used: `print_keysize_warning`
Dec 17 23:55:36.557 INFO [stderr]    --> src/main.rs:425:1
Dec 17 23:55:36.557 INFO [stderr]     |
Dec 17 23:55:36.557 INFO [stderr] 425 | fn print_keysize_warning(key_size : usize, largest_file_size : u64, longest_name : usize) {
Dec 17 23:55:36.557 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.557 INFO [stderr] 
Dec 17 23:55:36.568 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:55:36.568 INFO [stderr]    --> src/main.rs:529:13
Dec 17 23:55:36.568 INFO [stderr]     |
Dec 17 23:55:36.568 INFO [stderr] 529 |         let mut filenames = get_root_files(&fs);
Dec 17 23:55:36.568 INFO [stderr]     |             ----^^^^^^^^^
Dec 17 23:55:36.568 INFO [stderr]     |             |
Dec 17 23:55:36.568 INFO [stderr]     |             help: remove this `mut`
Dec 17 23:55:36.568 INFO [stderr] 
Dec 17 23:55:36.568 INFO [stderr] warning: variable does not need to be mutable
Dec 17 23:55:36.568 INFO [stderr]    --> src/main.rs:556:13
Dec 17 23:55:36.568 INFO [stderr]     |
Dec 17 23:55:36.568 INFO [stderr] 556 |         let mut filenames = get_root_files(&fs);
Dec 17 23:55:36.568 INFO [stderr]     |             ----^^^^^^^^^
Dec 17 23:55:36.568 INFO [stderr]     |             |
Dec 17 23:55:36.568 INFO [stderr]     |             help: remove this `mut`
Dec 17 23:55:36.568 INFO [stderr] 
Dec 17 23:55:36.588 INFO [stderr] warning: struct is never constructed: `StdoutWriter`
Dec 17 23:55:36.588 INFO [stderr]   --> src/stdout_writer.rs:11:1
Dec 17 23:55:36.588 INFO [stderr]    |
Dec 17 23:55:36.588 INFO [stderr] 11 | pub struct StdoutWriter;
Dec 17 23:55:36.588 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.588 INFO [stderr]    |
Dec 17 23:55:36.588 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 23:55:36.588 INFO [stderr] 
Dec 17 23:55:36.588 INFO [stderr] warning: function is never used: `show_prompt`
Dec 17 23:55:36.588 INFO [stderr]    --> src/main.rs:406:1
Dec 17 23:55:36.588 INFO [stderr]     |
Dec 17 23:55:36.588 INFO [stderr] 406 | fn show_prompt() -> char {
Dec 17 23:55:36.588 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.588 INFO [stderr] 
Dec 17 23:55:36.588 INFO [stderr] warning: function is never used: `print_keysize_warning`
Dec 17 23:55:36.588 INFO [stderr]    --> src/main.rs:425:1
Dec 17 23:55:36.588 INFO [stderr]     |
Dec 17 23:55:36.588 INFO [stderr] 425 | fn print_keysize_warning(key_size : usize, largest_file_size : u64, longest_name : usize) {
Dec 17 23:55:36.588 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:55:36.588 INFO [stderr] 
Dec 17 23:55:36.636 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.85s
Dec 17 23:55:37.406 INFO running `"docker" "inspect" "2387f4f7017fe54b4954183947d5488340b2254e819b81f1c58f0d16c35090c0"`
Dec 17 23:55:37.689 INFO running `"docker" "rm" "-f" "2387f4f7017fe54b4954183947d5488340b2254e819b81f1c58f0d16c35090c0"`
Dec 17 23:55:37.814 INFO [stdout] 2387f4f7017fe54b4954183947d5488340b2254e819b81f1c58f0d16c35090c0