[INFO] cloning repository https://github.com/ccheneson/coding_challenge_edabit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ccheneson/coding_challenge_edabit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccheneson%2Fcoding_challenge_edabit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccheneson%2Fcoding_challenge_edabit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a38d224e765216ca76fe7931503941d6b3c1a438
[INFO] checking ccheneson/coding_challenge_edabit/a38d224e765216ca76fe7931503941d6b3c1a438 against try#52ae2445414b2a196b318d85c2819995c6e5f1aa for pr-133397
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccheneson%2Fcoding_challenge_edabit" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ccheneson/coding_challenge_edabit on toolchain 52ae2445414b2a196b318d85c2819995c6e5f1aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52ae2445414b2a196b318d85c2819995c6e5f1aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ccheneson/coding_challenge_edabit
[INFO] finished tweaking git repo https://github.com/ccheneson/coding_challenge_edabit
[INFO] tweaked toml for git repo https://github.com/ccheneson/coding_challenge_edabit written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ccheneson/coding_challenge_edabit already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52ae2445414b2a196b318d85c2819995c6e5f1aa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+52ae2445414b2a196b318d85c2819995c6e5f1aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb4e3b9286597c4adc40e086f04b062a6bb2f50316da2dc3c876490324a4d8d6
[INFO] running `Command { std: "docker" "start" "-a" "bb4e3b9286597c4adc40e086f04b062a6bb2f50316da2dc3c876490324a4d8d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb4e3b9286597c4adc40e086f04b062a6bb2f50316da2dc3c876490324a4d8d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb4e3b9286597c4adc40e086f04b062a6bb2f50316da2dc3c876490324a4d8d6", kill_on_drop: false }`
[INFO] [stdout] bb4e3b9286597c4adc40e086f04b062a6bb2f50316da2dc3c876490324a4d8d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+52ae2445414b2a196b318d85c2819995c6e5f1aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df823db78049aa2fbc9be7eab66f242d5cc1414b93e27f34326bd8d8560b023e
[INFO] running `Command { std: "docker" "start" "-a" "df823db78049aa2fbc9be7eab66f242d5cc1414b93e27f34326bd8d8560b023e", kill_on_drop: false }`
[INFO] [stderr]     Checking challenge-edabit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `at_bash` is never used
[INFO] [stdout]  --> src/at_bash.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn at_bash(input: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `can_complete` is never used
[INFO] [stdout]  --> src/complete_word.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn can_complete(input: &str, word: &str) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `encrypt` is never used
[INFO] [stdout]  --> src/difference_cipher.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn encrypt(input: &str) -> Vec<i8> {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decrypt` is never used
[INFO] [stdout]   --> src/difference_cipher.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn decrypt(input: &[i8]) -> Result<String, FromUtf8Error> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `split` is never used
[INFO] [stdout]  --> src/parentheses_clusters.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn split(input: &str) -> Vec<&str> {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `additive_persistence` is never used
[INFO] [stdout]  --> src/persistence.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn additive_persistence(input: u32) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multiplicative_persistence` is never used
[INFO] [stdout]   --> src/persistence.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn multiplicative_persistence(input: u32) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `operation_persistence` is never used
[INFO] [stdout]   --> src/persistence.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn operation_persistence(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "df823db78049aa2fbc9be7eab66f242d5cc1414b93e27f34326bd8d8560b023e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df823db78049aa2fbc9be7eab66f242d5cc1414b93e27f34326bd8d8560b023e", kill_on_drop: false }`
[INFO] [stdout] df823db78049aa2fbc9be7eab66f242d5cc1414b93e27f34326bd8d8560b023e