[INFO] cloning repository https://github.com/phip1611/libbruteforce
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/phip1611/libbruteforce" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphip1611%2Flibbruteforce", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphip1611%2Flibbruteforce'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2f24efdd9b44598005466806a0a217404e4cead
[INFO] testing phip1611/libbruteforce against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphip1611%2Flibbruteforce" "/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/phip1611/libbruteforce on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/phip1611/libbruteforce
[INFO] finished tweaking git repo https://github.com/phip1611/libbruteforce
[INFO] tweaked toml for git repo https://github.com/phip1611/libbruteforce written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/phip1611/libbruteforce already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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" "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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c99ae2e679db6ec61d24b7555c8ba61031c499c514f21d7a952a2194741d1a1
[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" "4c99ae2e679db6ec61d24b7555c8ba61031c499c514f21d7a952a2194741d1a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c99ae2e679db6ec61d24b7555c8ba61031c499c514f21d7a952a2194741d1a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c99ae2e679db6ec61d24b7555c8ba61031c499c514f21d7a952a2194741d1a1", kill_on_drop: false }`
[INFO] [stdout] 4c99ae2e679db6ec61d24b7555c8ba61031c499c514f21d7a952a2194741d1a1
[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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba014988eff34fb532f7072e589011366d640697b9ff98f495d2ba2fb060745e
[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" "ba014988eff34fb532f7072e589011366d640697b9ff98f495d2ba2fb060745e", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling libbruteforce v2.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `indices_word_length`
[INFO] [stdout]   --> src/crack/indices.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn indices_word_length(indices: &[isize]) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_test_crack_params_full_alphabet`
[INFO] [stdout]   --> src/util/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn create_test_crack_params_full_alphabet(target: &str) -> CrackParameter {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_test_crack_params_full_alphabet_sha256`
[INFO] [stdout]   --> src/util/mod.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn create_test_crack_params_full_alphabet_sha256(target: &str) -> CrackParameter {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_test_crack_params_full_alphabet_sha256_fair`
[INFO] [stdout]   --> src/util/mod.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn create_test_crack_params_full_alphabet_sha256_fair(target: &str) -> CrackParameter {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.98s
[INFO] running `Command { std: "docker" "inspect" "ba014988eff34fb532f7072e589011366d640697b9ff98f495d2ba2fb060745e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba014988eff34fb532f7072e589011366d640697b9ff98f495d2ba2fb060745e", kill_on_drop: false }`
[INFO] [stdout] ba014988eff34fb532f7072e589011366d640697b9ff98f495d2ba2fb060745e
[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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0795439bbcf4f490e82242fd61b698c3666b52b5dc03fa1ccd2ed47b94135aab
[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" "0795439bbcf4f490e82242fd61b698c3666b52b5dc03fa1ccd2ed47b94135aab", kill_on_drop: false }`
[INFO] [stderr]    Compiling libbruteforce v2.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `indices_word_length`
[INFO] [stdout]   --> src/crack/indices.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn indices_word_length(indices: &[isize]) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_test_crack_params_full_alphabet`
[INFO] [stdout]   --> src/util/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn create_test_crack_params_full_alphabet(target: &str) -> CrackParameter {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_test_crack_params_full_alphabet_sha256`
[INFO] [stdout]   --> src/util/mod.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn create_test_crack_params_full_alphabet_sha256(target: &str) -> CrackParameter {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_test_crack_params_full_alphabet_sha256_fair`
[INFO] [stdout]   --> src/util/mod.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn create_test_crack_params_full_alphabet_sha256_fair(target: &str) -> CrackParameter {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/symbols/builder.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let mut builder = Builder::new();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/symbols/builder.rs:185:13
[INFO] [stdout]     |
[INFO] [stdout] 185 |         let mut builder = Builder::new();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/symbols/builder.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |         let mut builder = Builder::new();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/crack/indices.rs:177:9
[INFO] [stdout]     |
[INFO] [stdout] 177 |         indices_increment_by(&alphabet, &mut arr, 1);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/crack/indices.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |         indices_increment_by(&alphabet, &mut arr, 1);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/crack/indices.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         indices_increment_by(&alphabet, &mut arr, 1);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/crack/indices.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 229 |         indices_increment_by(&alphabet, &mut indices, steps);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/crack/indices.rs:241:9
[INFO] [stdout]     |
[INFO] [stdout] 241 |         indices_increment_by(&alphabet, &mut indices, 1);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/crack/indices.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |         indices_increment_by(&alphabet, &mut indices, 4);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "0795439bbcf4f490e82242fd61b698c3666b52b5dc03fa1ccd2ed47b94135aab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0795439bbcf4f490e82242fd61b698c3666b52b5dc03fa1ccd2ed47b94135aab", kill_on_drop: false }`
[INFO] [stdout] 0795439bbcf4f490e82242fd61b698c3666b52b5dc03fa1ccd2ed47b94135aab
[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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a1e6b2a74cb5307bf33b5312176b1babaa0c5b3a4b1f89d3bd4e7a17360535b2
[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" "a1e6b2a74cb5307bf33b5312176b1babaa0c5b3a4b1f89d3bd4e7a17360535b2", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `indices_word_length`
[INFO] [stderr]   --> src/crack/indices.rs:51:8
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub fn indices_word_length(indices: &[isize]) -> usize {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_test_crack_params_full_alphabet`
[INFO] [stderr]   --> src/util/mod.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn create_test_crack_params_full_alphabet(target: &str) -> CrackParameter {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_test_crack_params_full_alphabet_sha256`
[INFO] [stderr]   --> src/util/mod.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn create_test_crack_params_full_alphabet_sha256(target: &str) -> CrackParameter {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_test_crack_params_full_alphabet_sha256_fair`
[INFO] [stderr]   --> src/util/mod.rs:44:8
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn create_test_crack_params_full_alphabet_sha256_fair(target: &str) -> CrackParameter {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/symbols/builder.rs:151:13
[INFO] [stderr]     |
[INFO] [stderr] 151 |         let mut builder = Builder::new();
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/symbols/builder.rs:185:13
[INFO] [stderr]     |
[INFO] [stderr] 185 |         let mut builder = Builder::new();
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/symbols/builder.rs:191:13
[INFO] [stderr]     |
[INFO] [stderr] 191 |         let mut builder = Builder::new();
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/crack/indices.rs:177:9
[INFO] [stderr]     |
[INFO] [stderr] 177 |         indices_increment_by(&alphabet, &mut arr, 1);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/crack/indices.rs:192:9
[INFO] [stderr]     |
[INFO] [stderr] 192 |         indices_increment_by(&alphabet, &mut arr, 1);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/crack/indices.rs:202:9
[INFO] [stderr]     |
[INFO] [stderr] 202 |         indices_increment_by(&alphabet, &mut arr, 1);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/crack/indices.rs:229:9
[INFO] [stderr]     |
[INFO] [stderr] 229 |         indices_increment_by(&alphabet, &mut indices, steps);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/crack/indices.rs:241:9
[INFO] [stderr]     |
[INFO] [stderr] 241 |         indices_increment_by(&alphabet, &mut indices, 1);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/crack/indices.rs:243:9
[INFO] [stderr]     |
[INFO] [stderr] 243 |         indices_increment_by(&alphabet, &mut indices, 4);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/libbruteforce-5d43af2daeee144f
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test crack::indices::tests::test_increment_indices_array_add1_initial ... ok
[INFO] [stdout] test crack::indices::tests::test_create_indices_arr ... ok
[INFO] [stdout] test symbols::tests::test_combinations_count ... ok
[INFO] [stdout] test symbols::builder::tests::test_build_special_chars ... ok
[INFO] [stdout] test crack::indices::tests::test_get_word_as_string_1 ... ok
[INFO] [stdout] test crack::indices::tests::test_increment_indices_array_add1_overflow ... ok
[INFO] [stdout] test crack::indices::tests::test_get_word_as_string_2 ... ok
[INFO] [stdout] test crack::indices::tests::test_length_of_indices_array ... ok
[INFO] [stdout] test crack::indices::tests::test_increment_indices_array_total_overflow ... ok
[INFO] [stdout] test transform_fns::tests::test_sha1 ... ok
[INFO] [stdout] test transform_fns::tests::test_identity ... ok
[INFO] [stdout] test transform_fns::tests::test_sha256 ... ok
[INFO] [stdout] test symbols::builder::tests::test_build ... ok
[INFO] [stdout] test crack::indices::tests::test_increment_indices_array_add1 ... ok
[INFO] [stdout] test transform_fns::tests::test_md5 ... ok
[INFO] [stdout] test crack::indices::tests::test_increment_indices_to_upper_bound ... ok
[INFO] [stdout] test symbols::tests::test_combinations_count_panic ... ok
[INFO] [stdout] test symbols::builder::tests::test_panic ... ok
[INFO] [stdout] test crack::indices::tests::test_create_indices_arr_panic ... ok
[INFO] [stdout] test crack::tests::test_crack_identity ... ok
[INFO] [stdout] test crack::tests::test_crack_sha256_fair_and_unfair_mode ... test crack::tests::test_crack_sha256_fair_and_unfair_mode has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "a1e6b2a74cb5307bf33b5312176b1babaa0c5b3a4b1f89d3bd4e7a17360535b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1e6b2a74cb5307bf33b5312176b1babaa0c5b3a4b1f89d3bd4e7a17360535b2", kill_on_drop: false }`
[INFO] [stdout] a1e6b2a74cb5307bf33b5312176b1babaa0c5b3a4b1f89d3bd4e7a17360535b2