[INFO] updating cached repository https://github.com/anontyro/rust-exercises-57
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 80f81f75167e8613e1f01086a6c471b5be471d7d
[INFO] checking anontyro/rust-exercises-57 against try#1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0 for pr-69530
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanontyro%2Frust-exercises-57" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anontyro/rust-exercises-57 on toolchain 1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/anontyro/rust-exercises-57
[INFO] finished tweaking git repo https://github.com/anontyro/rust-exercises-57
[INFO] tweaked toml for git repo https://github.com/anontyro/rust-exercises-57 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/anontyro/rust-exercises-57 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "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] ef9361d428981cc436464c61539e973c46f48f0916f1412723340da272ec2bd7
[INFO] running `"docker" "start" "-a" "ef9361d428981cc436464c61539e973c46f48f0916f1412723340da272ec2bd7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking debug-helper v0.3.8
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking tokio-executor v0.1.8
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[INFO] [stderr]     Checking crc-any v2.2.3
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[INFO] [stderr]    Compiling serde_derive v1.0.94
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[INFO] [stderr]     Checking hyper-tls v0.3.2
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[INFO] [stderr]     Checking Prag_prog_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `decrypt_string_base64`
[INFO] [stderr]   --> src/exercises/./fifteen/password_validation.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     decrypt_string_base64, encrypt_string_base64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `decrypt_string_base64`
[INFO] [stderr]   --> src/exercises/./fifteen/password_validation.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     decrypt_string_base64, encrypt_string_base64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `user_values`
[INFO] [stderr]   --> src/exercises/./fifteen/password_validation.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let user_values = get_user_data();
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_user_values`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `user_values`
[INFO] [stderr]   --> src/exercises/./fifteen/password_validation.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let user_values = get_user_data();
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_user_values`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `username`
[INFO] [stderr]   --> src/exercises/./fifteen/password_validation.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     username: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `password`
[INFO] [stderr]   --> src/exercises/./fifteen/password_validation.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     password: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `username`
[INFO] [stderr]   --> src/exercises/./fifteen/password_validation.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     username: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `password`
[INFO] [stderr]   --> src/exercises/./fifteen/password_validation.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     password: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `"docker" "inspect" "ef9361d428981cc436464c61539e973c46f48f0916f1412723340da272ec2bd7"`
[INFO] running `"docker" "rm" "-f" "ef9361d428981cc436464c61539e973c46f48f0916f1412723340da272ec2bd7"`
[INFO] [stdout] ef9361d428981cc436464c61539e973c46f48f0916f1412723340da272ec2bd7