[INFO] fetching crate libbruteforce 2.2.2...
[INFO] building libbruteforce-2.2.2 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate libbruteforce 2.2.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate libbruteforce 2.2.2 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5940d393d0876dbc98da40fa8f4c2da826b413702b2c04096d0b031639fb7cf0
[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" "5940d393d0876dbc98da40fa8f4c2da826b413702b2c04096d0b031639fb7cf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5940d393d0876dbc98da40fa8f4c2da826b413702b2c04096d0b031639fb7cf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5940d393d0876dbc98da40fa8f4c2da826b413702b2c04096d0b031639fb7cf0", kill_on_drop: false }`
[INFO] [stdout] 5940d393d0876dbc98da40fa8f4c2da826b413702b2c04096d0b031639fb7cf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38a46efb29dc9fb2e929a04d816faab1c37616b33bf0492f1ec5384c795de4b2
[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" "38a46efb29dc9fb2e929a04d816faab1c37616b33bf0492f1ec5384c795de4b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling sha2 v0.8.2
[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 0.92s
[INFO] running `Command { std: "docker" "inspect" "38a46efb29dc9fb2e929a04d816faab1c37616b33bf0492f1ec5384c795de4b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38a46efb29dc9fb2e929a04d816faab1c37616b33bf0492f1ec5384c795de4b2", kill_on_drop: false }`
[INFO] [stdout] 38a46efb29dc9fb2e929a04d816faab1c37616b33bf0492f1ec5384c795de4b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 979bbdbfe7bfb44a91ea2e5a0bd0b41cb4fd8a2283a43b5b419b12211f70e073
[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" "979bbdbfe7bfb44a91ea2e5a0bd0b41cb4fd8a2283a43b5b419b12211f70e073", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]    Compiling libbruteforce v2.2.2 (/opt/rustwide/workdir)
[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 `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: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "979bbdbfe7bfb44a91ea2e5a0bd0b41cb4fd8a2283a43b5b419b12211f70e073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "979bbdbfe7bfb44a91ea2e5a0bd0b41cb4fd8a2283a43b5b419b12211f70e073", kill_on_drop: false }`
[INFO] [stdout] 979bbdbfe7bfb44a91ea2e5a0bd0b41cb4fd8a2283a43b5b419b12211f70e073
