[INFO] updating cached repository https://github.com/grwn/cryptopals-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9fd3d145e148d5810f53fc1d529734351edd08d
[INFO] testing grwn/cryptopals-rust against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrwn%2Fcryptopals-rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grwn/cryptopals-rust on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grwn/cryptopals-rust
[INFO] finished tweaking git repo https://github.com/grwn/cryptopals-rust
[INFO] tweaked toml for git repo https://github.com/grwn/cryptopals-rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/grwn/cryptopals-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 302326bd60b807d8bbefaafea3b4796d9447460d1f7c6ffdcb10929bbea47e56
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "302326bd60b807d8bbefaafea3b4796d9447460d1f7c6ffdcb10929bbea47e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "302326bd60b807d8bbefaafea3b4796d9447460d1f7c6ffdcb10929bbea47e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "302326bd60b807d8bbefaafea3b4796d9447460d1f7c6ffdcb10929bbea47e56", kill_on_drop: false }`
[INFO] [stdout] 302326bd60b807d8bbefaafea3b4796d9447460d1f7c6ffdcb10929bbea47e56
[INFO] running `Command { std: "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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b471d5888345a5ece938a3dba38018c1234034ecc06bc4cadf23789bb32864f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0b471d5888345a5ece938a3dba38018c1234034ecc06bc4cadf23789bb32864f", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling cryptopals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `crate::set_1::challenge_6::test_hamming`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::set_1::challenge_6::test_hamming;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `test_hamming` in `set_1::challenge_6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::set_1::utils::*`
[INFO] [stdout]  --> src/set_1/challenge_6.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::set_1::utils::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hamming_distance` is imported redundantly
[INFO] [stdout]    --> src/set_1/utils.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 148 | / pub fn hamming_distance(string1: &[u8], string2: &[u8]) -> u32 {
[INFO] [stdout] 149 | |     string1.iter()
[INFO] [stdout] 150 | |            .zip(string2)
[INFO] [stdout] 151 | |            .fold(0, |a, (b, c)| a + (*b ^ *c)
[INFO] [stdout] 152 | |            .count_ones())
[INFO] [stdout] 153 | | }
[INFO] [stdout]     | |_- the item `hamming_distance` is already defined here
[INFO] [stdout] ...
[INFO] [stdout] 156 |       use hamming_distance;
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::set_1::challenge_6::challenge_6`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::set_1::challenge_6::challenge_6;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/set_1/utils.rs:13:53
[INFO] [stdout]    |
[INFO] [stdout] 13 | ...                   why.description()),
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/set_1/utils.rs:20:53
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...                   why.description()),
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cryptopals`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0b471d5888345a5ece938a3dba38018c1234034ecc06bc4cadf23789bb32864f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b471d5888345a5ece938a3dba38018c1234034ecc06bc4cadf23789bb32864f", kill_on_drop: false }`
[INFO] [stdout] 0b471d5888345a5ece938a3dba38018c1234034ecc06bc4cadf23789bb32864f