[INFO] crate cryptopals 0.1.0 is already in cache
[INFO] checking cryptopals-0.1.0 against master#339f574809bf8e4166b8de3cdbe7df181d37af3d for pr-71896
[INFO] extracting crate cryptopals 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate cryptopals 0.1.0 on toolchain 339f574809bf8e4166b8de3cdbe7df181d37af3d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cryptopals 0.1.0
[INFO] finished tweaking crates.io crate cryptopals 0.1.0
[INFO] tweaked toml for crates.io crate cryptopals 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a57bfc1fb321a786ad7c88f0b552cf938e1ad9ff073828009989da4f84170b21
[INFO] running `"docker" "start" "-a" "a57bfc1fb321a786ad7c88f0b552cf938e1ad9ff073828009989da4f84170b21"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking base64 v0.7.0
[INFO] [stderr]     Checking cryptopals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `to_bytes`
[INFO] [stderr]  --> src/basics.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn to_bytes(hex: &String) -> Vec<u8> {
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_hex`
[INFO] [stderr]   --> src/basics.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn to_hex(bytes: Vec<u8>) -> String {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_base64`
[INFO] [stderr]   --> src/basics.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn hex_to_base64(hex: &String) -> String {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `xor`
[INFO] [stderr]   --> src/basics.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn xor(a: &Vec<u8>, b: &Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `"docker" "inspect" "a57bfc1fb321a786ad7c88f0b552cf938e1ad9ff073828009989da4f84170b21"`
[INFO] running `"docker" "rm" "-f" "a57bfc1fb321a786ad7c88f0b552cf938e1ad9ff073828009989da4f84170b21"`
[INFO] [stdout] a57bfc1fb321a786ad7c88f0b552cf938e1ad9ff073828009989da4f84170b21