[INFO] updating cached repository https://github.com/nicofff/rustopals
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9753226cc55245c6df428bebcf6870b9871d09c5
[INFO] checking nicofff/rustopals against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicofff%2Frustopals" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nicofff/rustopals on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nicofff/rustopals
[INFO] finished tweaking git repo https://github.com/nicofff/rustopals
[INFO] tweaked toml for git repo https://github.com/nicofff/rustopals written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nicofff/rustopals already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d9d9c9eca0c19a01d8e8b07999565f90e63d78fa49859e476cd699f43605b953
[INFO] running `"docker" "start" "-a" "d9d9c9eca0c19a01d8e8b07999565f90e63d78fa49859e476cd699f43605b953"`
[INFO] [stderr]     Checking cryptopals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `bytes_to_hex`, `hex_to_bytes`
[INFO] [stderr]  --> src/main.rs:3:18
[INFO] [stderr]   |
[INFO] [stderr] 3 | use formatters::{hex_to_bytes,bytes_to_hex,b64_to_bytes};
[INFO] [stderr]   |                  ^^^^^^^^^^^^ ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `bytes_to_hex`, `hex_to_bytes`
[INFO] [stderr]  --> src/main.rs:3:18
[INFO] [stderr]   |
[INFO] [stderr] 3 | use formatters::{hex_to_bytes,bytes_to_hex,b64_to_bytes};
[INFO] [stderr]   |                  ^^^^^^^^^^^^ ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_bytes`
[INFO] [stderr]  --> src/formatters.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn hex_to_bytes(buffer: &str) -> Vec<u8> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bytes_to_hex`
[INFO] [stderr]   --> src/formatters.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn bytes_to_hex(buffer: &[u8]) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bytes_to_b64`
[INFO] [stderr]   --> src/formatters.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn bytes_to_b64(buffer: &[u8]) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_b64`
[INFO] [stderr]   --> src/formatters.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn hex_to_b64(buffer: &str) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `b64_to_hex`
[INFO] [stderr]   --> src/formatters.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn b64_to_hex(buffer: &str) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fixed_xor`
[INFO] [stderr]  --> src/main.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn fixed_xor(buffer1: &[u8], buffer2:&[u8]) -> Vec<u8>{
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_bytes`
[INFO] [stderr]  --> src/formatters.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn hex_to_bytes(buffer: &str) -> Vec<u8> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bytes_to_hex`
[INFO] [stderr]   --> src/formatters.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn bytes_to_hex(buffer: &[u8]) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bytes_to_b64`
[INFO] [stderr]   --> src/formatters.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn bytes_to_b64(buffer: &[u8]) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_b64`
[INFO] [stderr]   --> src/formatters.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn hex_to_b64(buffer: &str) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `b64_to_hex`
[INFO] [stderr]   --> src/formatters.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn b64_to_hex(buffer: &str) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fixed_xor`
[INFO] [stderr]  --> src/main.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn fixed_xor(buffer1: &[u8], buffer2:&[u8]) -> Vec<u8>{
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.88s
[INFO] running `"docker" "inspect" "d9d9c9eca0c19a01d8e8b07999565f90e63d78fa49859e476cd699f43605b953"`
[INFO] running `"docker" "rm" "-f" "d9d9c9eca0c19a01d8e8b07999565f90e63d78fa49859e476cd699f43605b953"`
[INFO] [stdout] d9d9c9eca0c19a01d8e8b07999565f90e63d78fa49859e476cd699f43605b953