[INFO] cloning repository https://github.com/patorikkulee/regex-synth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/patorikkulee/regex-synth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatorikkulee%2Fregex-synth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatorikkulee%2Fregex-synth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bfed1c30ea78ed17905f3978c43bbe577c4f7ba7
[INFO] testing patorikkulee/regex-synth against master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatorikkulee%2Fregex-synth" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/patorikkulee/regex-synth
[INFO] finished tweaking git repo https://github.com/patorikkulee/regex-synth
[INFO] tweaked toml for git repo https://github.com/patorikkulee/regex-synth written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/patorikkulee/regex-synth on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/patorikkulee/regex-synth 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" "+1ef7943ee607160a564655b6596f83670ef95df5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded priority-queue v1.3.2
[INFO] [stderr]   Downloaded thread-id v3.3.0
[INFO] [stderr]   Downloaded flamer v0.3.0
[INFO] [stderr]   Downloaded cute v0.3.0
[INFO] [stderr]   Downloaded random-string v1.0.0
[INFO] [stderr]   Downloaded flame v0.2.2
[INFO] [stderr]   Downloaded serde v1.0.183
[INFO] [stderr]   Downloaded serde_derive v1.0.183
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 369b309fb1479972f40baa570faa45d648c9a73425840097f700c23766464126
[INFO] running `Command { std: "docker" "start" "-a" "369b309fb1479972f40baa570faa45d648c9a73425840097f700c23766464126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "369b309fb1479972f40baa570faa45d648c9a73425840097f700c23766464126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "369b309fb1479972f40baa570faa45d648c9a73425840097f700c23766464126", kill_on_drop: false }`
[INFO] [stdout] 369b309fb1479972f40baa570faa45d648c9a73425840097f700c23766464126
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a57efcab3119cb665b0003a6f3589c4a54745bc81afd98c9d48cad9dab445ad
[INFO] running `Command { std: "docker" "start" "-a" "6a57efcab3119cb665b0003a6f3589c4a54745bc81afd98c9d48cad9dab445ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling priority-queue v1.3.2
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling cute v0.3.0
[INFO] [stderr]    Compiling regex v1.8.4
[INFO] [stderr]    Compiling random-string v1.0.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling flame v0.2.2
[INFO] [stderr]    Compiling flamer v0.3.0
[INFO] [stderr]    Compiling regexsynth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `seq::index`
[INFO] [stdout]  --> src/utils.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{seq::index, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::string`
[INFO] [stdout]  --> src/utils.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::string;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::write`
[INFO] [stdout]   --> src/utils.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::{collections::HashSet, fmt::write, vec};
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `flame as f`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use flame as f;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `Instant`
[INFO] [stdout]  --> src/main.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `utils::State`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use utils::State;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `have_at_most_two_0s`
[INFO] [stdout]   --> src/main.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let have_at_most_two_0s: TestCase = TestCase::new(
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_have_at_most_two_0s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length_is_at_least_3_and_the_third_symbol_is_0`
[INFO] [stdout]   --> src/main.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let length_is_at_least_3_and_the_third_symbol_is_0: TestCase = TestCase::new(
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_length_is_at_least_3_and_the_third_symbol_is_0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `each_0_is_followed_by_at_least_one_1`
[INFO] [stdout]    --> src/main.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let each_0_is_followed_by_at_least_one_1: TestCase = TestCase::new(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_each_0_is_followed_by_at_least_one_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `negative_examples` is never used
[INFO] [stdout]    --> src/utils.rs:395:8
[INFO] [stdout]     |
[INFO] [stdout] 395 | pub fn negative_examples(condition: &str, set_len: usize) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_cost` is never used
[INFO] [stdout]    --> src/utils.rs:437:8
[INFO] [stdout]     |
[INFO] [stdout] 437 | pub fn get_cost(regexp: String) -> usize {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.52s
[INFO] running `Command { std: "docker" "inspect" "6a57efcab3119cb665b0003a6f3589c4a54745bc81afd98c9d48cad9dab445ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a57efcab3119cb665b0003a6f3589c4a54745bc81afd98c9d48cad9dab445ad", kill_on_drop: false }`
[INFO] [stdout] 6a57efcab3119cb665b0003a6f3589c4a54745bc81afd98c9d48cad9dab445ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8ea234963a4c856a59d83d239fc2835cb5e43de57a707f82717be967cc553dd
[INFO] running `Command { std: "docker" "start" "-a" "d8ea234963a4c856a59d83d239fc2835cb5e43de57a707f82717be967cc553dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling regexsynth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `seq::index`
[INFO] [stdout]  --> src/utils.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{seq::index, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::string`
[INFO] [stdout]  --> src/utils.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::string;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::write`
[INFO] [stdout]   --> src/utils.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::{collections::HashSet, fmt::write, vec};
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `flame as f`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use flame as f;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `Instant`
[INFO] [stdout]  --> src/main.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::LinkedList`
[INFO] [stdout]    --> src/main.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |     use std::collections::LinkedList;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `have_at_most_two_0s`
[INFO] [stdout]   --> src/main.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let have_at_most_two_0s: TestCase = TestCase::new(
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_have_at_most_two_0s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length_is_at_least_3_and_the_third_symbol_is_0`
[INFO] [stdout]   --> src/main.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let length_is_at_least_3_and_the_third_symbol_is_0: TestCase = TestCase::new(
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_length_is_at_least_3_and_the_third_symbol_is_0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `each_0_is_followed_by_at_least_one_1`
[INFO] [stdout]    --> src/main.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let each_0_is_followed_by_at_least_one_1: TestCase = TestCase::new(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_each_0_is_followed_by_at_least_one_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> src/main.rs:164:13
[INFO] [stdout]     |
[INFO] [stdout] 164 |         let state: utils::State = utils::synth(&ps, &ns, false, false);
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `negative_examples` is never used
[INFO] [stdout]    --> src/utils.rs:395:8
[INFO] [stdout]     |
[INFO] [stdout] 395 | pub fn negative_examples(condition: &str, set_len: usize) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_cost` is never used
[INFO] [stdout]    --> src/utils.rs:437:8
[INFO] [stdout]     |
[INFO] [stdout] 437 | pub fn get_cost(regexp: String) -> usize {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "d8ea234963a4c856a59d83d239fc2835cb5e43de57a707f82717be967cc553dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8ea234963a4c856a59d83d239fc2835cb5e43de57a707f82717be967cc553dd", kill_on_drop: false }`
[INFO] [stdout] d8ea234963a4c856a59d83d239fc2835cb5e43de57a707f82717be967cc553dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 87f785a1d2693b366b41de9a1a7551178f44756171113c9fbb3a2e74d726c8d5
[INFO] running `Command { std: "docker" "start" "-a" "87f785a1d2693b366b41de9a1a7551178f44756171113c9fbb3a2e74d726c8d5", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `seq::index`
[INFO] [stderr]  --> src/utils.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::{seq::index, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::string`
[INFO] [stderr]  --> src/utils.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::string;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `fmt::write`
[INFO] [stderr]   --> src/utils.rs:10:33
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::{collections::HashSet, fmt::write, vec};
[INFO] [stderr]    |                                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `flame as f`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use flame as f;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Duration` and `Instant`
[INFO] [stderr]  --> src/main.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::time::{Duration, Instant};
[INFO] [stderr]   |                 ^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::LinkedList`
[INFO] [stderr]    --> src/main.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 |     use std::collections::LinkedList;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `have_at_most_two_0s`
[INFO] [stderr]   --> src/main.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |     let have_at_most_two_0s: TestCase = TestCase::new(
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_have_at_most_two_0s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `length_is_at_least_3_and_the_third_symbol_is_0`
[INFO] [stderr]   --> src/main.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let length_is_at_least_3_and_the_third_symbol_is_0: TestCase = TestCase::new(
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_length_is_at_least_3_and_the_third_symbol_is_0`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `each_0_is_followed_by_at_least_one_1`
[INFO] [stderr]    --> src/main.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let each_0_is_followed_by_at_least_one_1: TestCase = TestCase::new(
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_each_0_is_followed_by_at_least_one_1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]    --> src/main.rs:164:13
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let state: utils::State = utils::synth(&ps, &ns, false, false);
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stderr] 
[INFO] [stderr] warning: function `negative_examples` is never used
[INFO] [stderr]    --> src/utils.rs:395:8
[INFO] [stderr]     |
[INFO] [stderr] 395 | pub fn negative_examples(condition: &str, set_len: usize) -> Vec<String> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_cost` is never used
[INFO] [stderr]    --> src/utils.rs:437:8
[INFO] [stderr]     |
[INFO] [stderr] 437 | pub fn get_cost(regexp: String) -> usize {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `regexsynth` (bin "regexsynth" test) generated 14 warnings (run `cargo fix --bin "regexsynth" -p regexsynth --tests` to apply 12 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/regexsynth-1fffeadf9190ec8f)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::is_really_redundant ... ok
[INFO] [stdout] test test::update_test ... ok
[INFO] [stdout] test test::is_inside_or_works ... FAILED
[INFO] [stdout] test test::start_with_0 ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test::is_inside_or_works stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test::is_inside_or_works' (24) panicked at src/utils.rs:160:17:
[INFO] [stdout] byte index 19 is out of bounds of `^((( | | ))*)*$`
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5db844c333e2 - std::backtrace_rs::backtrace::libunwind::trace::h786de35fecf3582f
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5db844c333e2 - std::backtrace_rs::backtrace::trace_unsynchronized::h4a7da1a2a64387f1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5db844c333e2 - std::sys::backtrace::_print_fmt::h6bd7d500070c788c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5db844c333e2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h6d82c1afff976903
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5db844c445df - core::fmt::rt::Argument::fmt::hc4ce6d643d397690
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5db844c445df - core::fmt::write::hb1e7ca88b6a3936e
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x5db844c00c33 - std::io::default_write_fmt::haffd49d96f1984a8
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5db844c00c33 - std::io::Write::write_fmt::h027871c57cf57c01
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5db844c0cb02 - std::sys::backtrace::BacktraceLock::print::ha2430613ee79d059
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5db844c1167f - std::panicking::default_hook::{{closure}}::hdbd2db9e5c303cf6
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x5db844c11511 - std::panicking::default_hook::hed93c70cba5fdcf0
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x5db844a4a25e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd0ee8b569efc6a07
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x5db844a4a25e - test::test_main_with_exit_callback::{{closure}}::hf10864b576ecd15d
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5db844c11c8f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3a55ca34534c0d00
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x5db844c11c8f - std::panicking::panic_with_hook::h3862d766c2cec19b
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x5db844c11aea - std::panicking::panic_handler::{{closure}}::hb95eb402b5e28ee1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x5db844c0cc49 - std::sys::backtrace::__rust_end_short_backtrace::hf73a26dc1835d85a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x5db844bf552d - __rustc[6ed5915ee467787]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x5db844c4c950 - core::panicking::panic_fmt::h3454303eb8e6f7cd
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5db844c4a4bc - core::str::slice_error_fail_rt::h4b991c1055b132c5
[INFO] [stdout]   20:     0x5db844c4a1aa - core::str::slice_error_fail::h32f97d6560eab3f1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/str/mod.rs:69:5
[INFO] [stdout]   21:     0x5db844a703cc - core::str::traits::<impl core::slice::index::SliceIndex<str> for core::ops::range::Range<usize>>::index::h41575617ef4b98b7
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/str/traits.rs:248:21
[INFO] [stdout]   22:     0x5db844a73824 - <alloc::string::String as core::ops::index::Index<I>>::index::hb88690ef4e5fb73a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/string.rs:2777:15
[INFO] [stdout]   23:     0x5db844a243f7 - regexsynth::utils::is_inside_or::h49c0f0164e5b5191
[INFO] [stdout]                                at /opt/rustwide/workdir/src/utils.rs:160:17
[INFO] [stdout]   24:     0x5db844a1ead3 - regexsynth::test::is_inside_or_works::h2088e86bc4a0f111
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:192:17
[INFO] [stdout]   25:     0x5db844a1eb87 - regexsynth::test::is_inside_or_works::{{closure}}::ha69befa51e0bdf06
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:185:28
[INFO] [stdout]   26:     0x5db844a1f966 - core::ops::function::FnOnce::call_once::h13b6709012d2a43c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x5db844a4a03b - core::ops::function::FnOnce::call_once::ha729ee35d2fab541
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x5db844a4a03b - test::__rust_begin_short_backtrace::ha40f4db8207e1111
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:663:18
[INFO] [stdout]   29:     0x5db844a5e0bd - test::run_test_in_process::{{closure}}::hc1b77cda5d44f0f3
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:686:74
[INFO] [stdout]   30:     0x5db844a5e0bd - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h1dbea1de64785521
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   31:     0x5db844a5e0bd - std::panicking::catch_unwind::do_call::hd5febe9affd5a1b3
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:590:40
[INFO] [stdout]   32:     0x5db844a5e0bd - std::panicking::catch_unwind::h51ea89627559b6f4
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:553:19
[INFO] [stdout]   33:     0x5db844a5e0bd - std::panic::catch_unwind::hb8b8c2367cae3d66
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panic.rs:359:14
[INFO] [stdout]   34:     0x5db844a5e0bd - test::run_test_in_process::ha5b55801407ea100
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:686:27
[INFO] [stdout]   35:     0x5db844a5e0bd - test::run_test::{{closure}}::h0b9d4072b527abf5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:607:43
[INFO] [stdout]   36:     0x5db844a375d4 - test::run_test::{{closure}}::hb1056b5731205822
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:637:41
[INFO] [stdout]   37:     0x5db844a375d4 - std::sys::backtrace::__rust_begin_short_backtrace::hb61ff5a34023c7ef
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   38:     0x5db844a3af0a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hb0a83c0e8b353cff
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   39:     0x5db844a3af0a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb4f32cb008535298
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   40:     0x5db844a3af0a - std::panicking::catch_unwind::do_call::h16d110e4fc35789a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:590:40
[INFO] [stdout]   41:     0x5db844a3af0a - std::panicking::catch_unwind::hea9118f355699c4b
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:553:19
[INFO] [stdout]   42:     0x5db844a3af0a - std::panic::catch_unwind::hf4b3c2a06d3f42f5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panic.rs:359:14
[INFO] [stdout]   43:     0x5db844a3af0a - std::thread::Builder::spawn_unchecked_::{{closure}}::h3f4cb733a52d53d5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   44:     0x5db844a3af0a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4052f0967b37caeb
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x5db844c0803f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ec433abd3f148b4
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   46:     0x5db844c0803f - std::sys::thread::unix::Thread::new::thread_start::he514622d3d7ba65c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   47:     0x7a3e38390aa4 - <unknown>
[INFO] [stdout]   48:     0x7a3e3841da64 - clone
[INFO] [stdout]   49:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test::is_inside_or_works
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin regexsynth`
[INFO] running `Command { std: "docker" "inspect" "87f785a1d2693b366b41de9a1a7551178f44756171113c9fbb3a2e74d726c8d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87f785a1d2693b366b41de9a1a7551178f44756171113c9fbb3a2e74d726c8d5", kill_on_drop: false }`
[INFO] [stdout] 87f785a1d2693b366b41de9a1a7551178f44756171113c9fbb3a2e74d726c8d5
