[INFO] updating cached repository https://github.com/daogangtang/cryptopals
[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] 06bf9e3c72cedfb831dfc5e6fffe74c61c5b873b
[INFO] checking daogangtang/cryptopals against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaogangtang%2Fcryptopals" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/daogangtang/cryptopals 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/daogangtang/cryptopals
[INFO] finished tweaking git repo https://github.com/daogangtang/cryptopals
[INFO] tweaked toml for git repo https://github.com/daogangtang/cryptopals written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/daogangtang/cryptopals 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-0/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] 3c931d63dd4e18329466235e142d36ae82a37aefb6e681858510c958857b40ca
[INFO] running `"docker" "start" "-a" "3c931d63dd4e18329466235e142d36ae82a37aefb6e681858510c958857b40ca"`
[INFO] [stderr]     Checking cryptopals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `hex`
[INFO] [stderr]  --> src/break-repeating-key-xor.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use hex;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex`
[INFO] [stderr]  --> src/helper.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use hex;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `target_msg` is assigned to, but never used
[INFO] [stderr]   --> src/helper.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut target_msg: Vec<u8> = vec![];
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_target_msg` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `target_msg` is never read
[INFO] [stderr]   --> src/helper.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |             target_msg = decrypted_bytes;
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex`
[INFO] [stderr]  --> src/break-repeating-key-xor.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use hex;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex`
[INFO] [stderr]  --> src/helper.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use hex;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `target_msg` is assigned to, but never used
[INFO] [stderr]   --> src/helper.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut target_msg: Vec<u8> = vec![];
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_target_msg` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `target_msg` is never read
[INFO] [stderr]   --> src/helper.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |             target_msg = decrypted_bytes;
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.20s
[INFO] running `"docker" "inspect" "3c931d63dd4e18329466235e142d36ae82a37aefb6e681858510c958857b40ca"`
[INFO] running `"docker" "rm" "-f" "3c931d63dd4e18329466235e142d36ae82a37aefb6e681858510c958857b40ca"`
[INFO] [stdout] 3c931d63dd4e18329466235e142d36ae82a37aefb6e681858510c958857b40ca