[INFO] cloning repository https://github.com/HonetwoH/regex-eng
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HonetwoH/regex-eng" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHonetwoH%2Fregex-eng", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHonetwoH%2Fregex-eng'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da036bc6e370a7c87bf578902ef56227d2b22820
[INFO] testing HonetwoH/regex-eng against master#595316b4006932405a63862d8fe65f71a6356293 for pr-128254
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHonetwoH%2Fregex-eng" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HonetwoH/regex-eng on toolchain 595316b4006932405a63862d8fe65f71a6356293
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HonetwoH/regex-eng
[INFO] finished tweaking git repo https://github.com/HonetwoH/regex-eng
[INFO] tweaked toml for git repo https://github.com/HonetwoH/regex-eng written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/HonetwoH/regex-eng 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" "+595316b4006932405a63862d8fe65f71a6356293" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing HonetwoH/regex-eng against try#5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b for pr-128254
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHonetwoH%2Fregex-eng" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HonetwoH/regex-eng on toolchain 5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HonetwoH/regex-eng
[INFO] finished tweaking git repo https://github.com/HonetwoH/regex-eng
[INFO] tweaked toml for git repo https://github.com/HonetwoH/regex-eng written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/HonetwoH/regex-eng 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" "+5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbc6eb77853d27ef613bd8791911094078c40a17208e85ae36182c54fdff92e4
[INFO] running `Command { std: "docker" "start" "-a" "dbc6eb77853d27ef613bd8791911094078c40a17208e85ae36182c54fdff92e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbc6eb77853d27ef613bd8791911094078c40a17208e85ae36182c54fdff92e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc6eb77853d27ef613bd8791911094078c40a17208e85ae36182c54fdff92e4", kill_on_drop: false }`
[INFO] [stdout] dbc6eb77853d27ef613bd8791911094078c40a17208e85ae36182c54fdff92e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7253e9a094a7cfbaa0641b27060d53e9bfc189487eee7c3d90a5240c40f3b3a7
[INFO] running `Command { std: "docker" "start" "-a" "7253e9a094a7cfbaa0641b27060d53e9bfc189487eee7c3d90a5240c40f3b3a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-eng v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Matcher` is never constructed
[INFO] [stdout]  --> src/matcher/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Matcher {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Expression` is never used
[INFO] [stdout]  --> src/parser/mod.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) type Expression = (Anchor, Vec<Pattern>);
[INFO] [stdout]   |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ParsingError` is never used
[INFO] [stdout]  --> src/parser/mod.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) enum ParsingError {
[INFO] [stdout]   |                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pattern` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) struct Pattern {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SubPattern` is never used
[INFO] [stdout]   --> src/parser/mod.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub(crate) enum SubPattern {
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Sets` is never used
[INFO] [stdout]   --> src/parser/mod.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub(crate) enum Sets {
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PredefinedSet` is never used
[INFO] [stdout]   --> src/parser/mod.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub(crate) enum PredefinedSet {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Range` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:60:19
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub(crate) struct Range(pub(crate) char, pub(crate) char);
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Anchor` is never used
[INFO] [stdout]   --> src/parser/mod.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub(crate) enum Anchor {
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Repetition` is never used
[INFO] [stdout]   --> src/parser/mod.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub(crate) enum Repetition {
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process` is never used
[INFO] [stdout]    --> src/parser/mod.rs:105:15
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub(crate) fn process(line: &'_ str) -> Result<Expression, ParsingError> {
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NORMAL_CHAR` is never used
[INFO] [stdout]  --> src/parser/parse.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const NORMAL_CHAR: [char; 80] = [
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process` is never used
[INFO] [stdout]   --> src/parser/parse.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(super) fn process(line: &'_ str) -> Result<Expression, ParsingError> {
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `look_for` is never used
[INFO] [stdout]   --> src/parser/parse.rs:94:4
[INFO] [stdout]    |
[INFO] [stdout] 94 | fn look_for<I: Iterator<Item = char> + Debug>(
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_alternation` is never used
[INFO] [stdout]    --> src/parser/parse.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn check_alternation(iter: &mut Peekable<Chars<'_>>) -> Result<SubPattern, ParsingError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_subset` is never used
[INFO] [stdout]    --> src/parser/parse.rs:140:4
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn process_subset(alternates: Vec<Vec<char>>) -> Result<Vec<Vec<Pattern>>, ParsingError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scan_bracketed_expression` is never used
[INFO] [stdout]    --> src/parser/parse.rs:190:4
[INFO] [stdout]     |
[INFO] [stdout] 190 | fn scan_bracketed_expression<I: Iterator<Item = char> + Debug>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_predefined_set` is never used
[INFO] [stdout]    --> src/parser/parse.rs:280:4
[INFO] [stdout]     |
[INFO] [stdout] 280 | fn get_predefined_set<I: Iterator<Item = char> + Debug>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_name_of_set` is never used
[INFO] [stdout]    --> src/parser/parse.rs:305:4
[INFO] [stdout]     |
[INFO] [stdout] 305 | fn match_name_of_set(name: Vec<char>) -> Result<PredefinedSet, ParsingError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_repetition` is never used
[INFO] [stdout]    --> src/parser/parse.rs:328:4
[INFO] [stdout]     |
[INFO] [stdout] 328 | fn check_repetition<I: Iterator<Item = char> + Debug>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `exact_repetitions` is never used
[INFO] [stdout]    --> src/parser/parse.rs:350:4
[INFO] [stdout]     |
[INFO] [stdout] 350 | fn exact_repetitions<I: Iterator<Item = char> + Debug>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "7253e9a094a7cfbaa0641b27060d53e9bfc189487eee7c3d90a5240c40f3b3a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7253e9a094a7cfbaa0641b27060d53e9bfc189487eee7c3d90a5240c40f3b3a7", kill_on_drop: false }`
[INFO] [stdout] 7253e9a094a7cfbaa0641b27060d53e9bfc189487eee7c3d90a5240c40f3b3a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92a445f7c54b2823e96dc482e7979d9c317b38ecfbf8bde3b2109b9638f60ccb
[INFO] running `Command { std: "docker" "start" "-a" "92a445f7c54b2823e96dc482e7979d9c317b38ecfbf8bde3b2109b9638f60ccb", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Matcher` is never constructed
[INFO] [stdout]  --> src/matcher/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Matcher {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Expression` is never used
[INFO] [stdout]  --> src/parser/mod.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) type Expression = (Anchor, Vec<Pattern>);
[INFO] [stdout]   |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ParsingError` is never used
[INFO] [stdout]  --> src/parser/mod.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) enum ParsingError {
[INFO] [stdout]   |                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pattern` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) struct Pattern {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SubPattern` is never used
[INFO] [stdout]   --> src/parser/mod.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub(crate) enum SubPattern {
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Sets` is never used
[INFO] [stdout]   --> src/parser/mod.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub(crate) enum Sets {
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PredefinedSet` is never used
[INFO] [stdout]   --> src/parser/mod.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub(crate) enum PredefinedSet {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Range` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:60:19
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub(crate) struct Range(pub(crate) char, pub(crate) char);
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Anchor` is never used
[INFO] [stdout]   --> src/parser/mod.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub(crate) enum Anchor {
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Repetition` is never used
[INFO] [stdout]   --> src/parser/mod.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub(crate) enum Repetition {
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process` is never used
[INFO] [stdout]    --> src/parser/mod.rs:105:15
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub(crate) fn process(line: &'_ str) -> Result<Expression, ParsingError> {
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NORMAL_CHAR` is never used
[INFO] [stdout]  --> src/parser/parse.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const NORMAL_CHAR: [char; 80] = [
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process` is never used
[INFO] [stdout]   --> src/parser/parse.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(super) fn process(line: &'_ str) -> Result<Expression, ParsingError> {
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `look_for` is never used
[INFO] [stdout]   --> src/parser/parse.rs:94:4
[INFO] [stdout]    |
[INFO] [stdout] 94 | fn look_for<I: Iterator<Item = char> + Debug>(
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_alternation` is never used
[INFO] [stdout]    --> src/parser/parse.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn check_alternation(iter: &mut Peekable<Chars<'_>>) -> Result<SubPattern, ParsingError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_subset` is never used
[INFO] [stdout]    --> src/parser/parse.rs:140:4
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn process_subset(alternates: Vec<Vec<char>>) -> Result<Vec<Vec<Pattern>>, ParsingError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scan_bracketed_expression` is never used
[INFO] [stdout]    --> src/parser/parse.rs:190:4
[INFO] [stdout]     |
[INFO] [stdout] 190 | fn scan_bracketed_expression<I: Iterator<Item = char> + Debug>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_predefined_set` is never used
[INFO] [stdout]    --> src/parser/parse.rs:280:4
[INFO] [stdout]     |
[INFO] [stdout] 280 | fn get_predefined_set<I: Iterator<Item = char> + Debug>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_name_of_set` is never used
[INFO] [stdout]    --> src/parser/parse.rs:305:4
[INFO] [stdout]     |
[INFO] [stdout] 305 | fn match_name_of_set(name: Vec<char>) -> Result<PredefinedSet, ParsingError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_repetition` is never used
[INFO] [stdout]    --> src/parser/parse.rs:328:4
[INFO] [stdout]     |
[INFO] [stdout] 328 | fn check_repetition<I: Iterator<Item = char> + Debug>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `exact_repetitions` is never used
[INFO] [stdout]    --> src/parser/parse.rs:350:4
[INFO] [stdout]     |
[INFO] [stdout] 350 | fn exact_repetitions<I: Iterator<Item = char> + Debug>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex-eng v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matcher` is never constructed
[INFO] [stdout]  --> src/matcher/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Matcher {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Upper` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub(crate) enum PredefinedSet {
[INFO] [stdout]    |                 ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 51 |     Upper,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PredefinedSet` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "92a445f7c54b2823e96dc482e7979d9c317b38ecfbf8bde3b2109b9638f60ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92a445f7c54b2823e96dc482e7979d9c317b38ecfbf8bde3b2109b9638f60ccb", kill_on_drop: false }`
[INFO] [stdout] 92a445f7c54b2823e96dc482e7979d9c317b38ecfbf8bde3b2109b9638f60ccb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ce1cd66a73173dac4d6c0261dd313584fd82cd4858291df534b054487332d56c
[INFO] running `Command { std: "docker" "start" "-a" "ce1cd66a73173dac4d6c0261dd313584fd82cd4858291df534b054487332d56c", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Matcher` is never constructed
[INFO] [stderr]  --> src/matcher/mod.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Matcher {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Expression` is never used
[INFO] [stderr]  --> src/parser/mod.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub(crate) type Expression = (Anchor, Vec<Pattern>);
[INFO] [stderr]   |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `ParsingError` is never used
[INFO] [stderr]  --> src/parser/mod.rs:7:17
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub(crate) enum ParsingError {
[INFO] [stderr]   |                 ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Pattern` is never constructed
[INFO] [stderr]   --> src/parser/mod.rs:19:19
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub(crate) struct Pattern {
[INFO] [stderr]    |                   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `SubPattern` is never used
[INFO] [stderr]   --> src/parser/mod.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub(crate) enum SubPattern {
[INFO] [stderr]    |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Sets` is never used
[INFO] [stderr]   --> src/parser/mod.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub(crate) enum Sets {
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `PredefinedSet` is never used
[INFO] [stderr]   --> src/parser/mod.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub(crate) enum PredefinedSet {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Range` is never constructed
[INFO] [stderr]   --> src/parser/mod.rs:60:19
[INFO] [stderr]    |
[INFO] [stderr] 60 | pub(crate) struct Range(pub(crate) char, pub(crate) char);
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Anchor` is never used
[INFO] [stderr]   --> src/parser/mod.rs:63:17
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub(crate) enum Anchor {
[INFO] [stderr]    |                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Repetition` is never used
[INFO] [stderr]   --> src/parser/mod.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub(crate) enum Repetition {
[INFO] [stderr]    |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `process` is never used
[INFO] [stderr]    --> src/parser/mod.rs:105:15
[INFO] [stderr]     |
[INFO] [stderr] 105 | pub(crate) fn process(line: &'_ str) -> Result<Expression, ParsingError> {
[INFO] [stderr]     |               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `NORMAL_CHAR` is never used
[INFO] [stderr]  --> src/parser/parse.rs:9:7
[INFO] [stderr]   |
[INFO] [stderr] 9 | const NORMAL_CHAR: [char; 80] = [
[INFO] [stderr]   |       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `process` is never used
[INFO] [stderr]   --> src/parser/parse.rs:17:15
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub(super) fn process(line: &'_ str) -> Result<Expression, ParsingError> {
[INFO] [stderr]    |               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `look_for` is never used
[INFO] [stderr]   --> src/parser/parse.rs:94:4
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn look_for<I: Iterator<Item = char> + Debug>(
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `check_alternation` is never used
[INFO] [stderr]    --> src/parser/parse.rs:110:4
[INFO] [stderr]     |
[INFO] [stderr] 110 | fn check_alternation(iter: &mut Peekable<Chars<'_>>) -> Result<SubPattern, ParsingError> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `process_subset` is never used
[INFO] [stderr]    --> src/parser/parse.rs:140:4
[INFO] [stderr]     |
[INFO] [stderr] 140 | fn process_subset(alternates: Vec<Vec<char>>) -> Result<Vec<Vec<Pattern>>, ParsingError> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `scan_bracketed_expression` is never used
[INFO] [stderr]    --> src/parser/parse.rs:190:4
[INFO] [stderr]     |
[INFO] [stderr] 190 | fn scan_bracketed_expression<I: Iterator<Item = char> + Debug>(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_predefined_set` is never used
[INFO] [stderr]    --> src/parser/parse.rs:280:4
[INFO] [stderr]     |
[INFO] [stderr] 280 | fn get_predefined_set<I: Iterator<Item = char> + Debug>(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `match_name_of_set` is never used
[INFO] [stderr]    --> src/parser/parse.rs:305:4
[INFO] [stderr]     |
[INFO] [stderr] 305 | fn match_name_of_set(name: Vec<char>) -> Result<PredefinedSet, ParsingError> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `check_repetition` is never used
[INFO] [stderr]    --> src/parser/parse.rs:328:4
[INFO] [stderr]     |
[INFO] [stderr] 328 | fn check_repetition<I: Iterator<Item = char> + Debug>(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `exact_repetitions` is never used
[INFO] [stderr]    --> src/parser/parse.rs:350:4
[INFO] [stderr]     |
[INFO] [stderr] 350 | fn exact_repetitions<I: Iterator<Item = char> + Debug>(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `regex-eng` (lib) generated 21 warnings
[INFO] [stderr] warning: variant `Upper` is never constructed
[INFO] [stderr]   --> src/parser/mod.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub(crate) enum PredefinedSet {
[INFO] [stderr]    |                 ------------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 51 |     Upper,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `PredefinedSet` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `regex-eng` (lib test) generated 2 warnings (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/regex_eng-1b931cfe0496cdec)
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test parser::parse::test::all_bracketed_expression_together ... ok
[INFO] [stdout] test parser::parse::test::test_bracketed_expression1 ... ok
[INFO] [stdout] test parser::parse::test::test_bracketed_expression2 ... ok
[INFO] [stdout] test parser::parse::test::test_bracketed_expression3 ... ok
[INFO] [stdout] test parser::parse::test::test_bracketed_expression_escaping1 ... ok
[INFO] [stdout] test parser::parse::test::test_bracketed_expression_escaping2 ... ok
[INFO] [stdout] test parser::parse::test::test_bracketed_expression_range_compound ... ok
[INFO] [stdout] test parser::parse::test::test_bracketed_expression_range_compound2 ... ok
[INFO] [stdout] test parser::parse::test::test_bracketed_expression_range_compound3 ... ok
[INFO] [stdout] test parser::parse::test::test_bracketed_expression_range_compound4 ... ok
[INFO] [stdout] test parser::parse::test::test_bracketed_expression_range_simple ... ok
[INFO] [stdout] test parser::parse::test::test_exact_repetition_4 ... ok
[INFO] [stdout] test parser::parse::test::test_exact_repetition_3 ... ok
[INFO] [stdout] test parser::parse::test::test_exact_repetition_1 ... ok
[INFO] [stdout] test parser::parse::test::test_inverted_bracketed_expression3 ... ok
[INFO] [stdout] test parser::test::alternations ... ok
[INFO] [stdout] test parser::test::testing_anchor_and_repetation ... ok
[INFO] [stdout] test parser::parse::test::test_exact_reptition_2 ... ok
[INFO] [stdout] test parser::parse::test::test_inverted_bracketed_expression2 ... ok
[INFO] [stdout] test parser::test::testing_escape_sequence_and_anchor ... ok
[INFO] [stdout] test parser::test::parsing_email ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests regex_eng
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce1cd66a73173dac4d6c0261dd313584fd82cd4858291df534b054487332d56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce1cd66a73173dac4d6c0261dd313584fd82cd4858291df534b054487332d56c", kill_on_drop: false }`
[INFO] [stdout] ce1cd66a73173dac4d6c0261dd313584fd82cd4858291df534b054487332d56c