[INFO] fetching crate libbruteforce 2.2.2...
[INFO] checking libbruteforce-2.2.2 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate libbruteforce 2.2.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate libbruteforce 2.2.2 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libbruteforce 2.2.2
[INFO] finished tweaking crates.io crate libbruteforce 2.2.2
[INFO] tweaked toml for crates.io crate libbruteforce 2.2.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded md5 v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f62676fcff7e79a8a6002143da9be7898a33ab29b5971548df16436d24e398b2
[INFO] running `Command { std: "docker" "start" "-a" "f62676fcff7e79a8a6002143da9be7898a33ab29b5971548df16436d24e398b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f62676fcff7e79a8a6002143da9be7898a33ab29b5971548df16436d24e398b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f62676fcff7e79a8a6002143da9be7898a33ab29b5971548df16436d24e398b2", kill_on_drop: false }`
[INFO] [stdout] f62676fcff7e79a8a6002143da9be7898a33ab29b5971548df16436d24e398b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 026911217b40645cfe3bc76667e042bbc16800e8621b97a464fca211c503b880
[INFO] running `Command { std: "docker" "start" "-a" "026911217b40645cfe3bc76667e042bbc16800e8621b97a464fca211c503b880", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking libc v0.2.100
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking libbruteforce v2.2.2 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/symbols/builder.rs (3 fixes)
[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: unused `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 `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 `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 `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 `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 `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: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.97s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking libbruteforce v2.2.2 (/tmp/fixit)
[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: unused `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 `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 `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 `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 `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 `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: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "026911217b40645cfe3bc76667e042bbc16800e8621b97a464fca211c503b880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "026911217b40645cfe3bc76667e042bbc16800e8621b97a464fca211c503b880", kill_on_drop: false }`
[INFO] [stdout] 026911217b40645cfe3bc76667e042bbc16800e8621b97a464fca211c503b880