[INFO] cloning repository https://github.com/jabley/parser-combinator-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jabley/parser-combinator-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjabley%2Fparser-combinator-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjabley%2Fparser-combinator-rs'...
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[INFO] [stdout] 7a620ddc9eaed6304574002c4ffbeb00482c78b3
[INFO] checking jabley/parser-combinator-rs against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjabley%2Fparser-combinator-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jabley/parser-combinator-rs on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
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[INFO] started tweaking git repo https://github.com/jabley/parser-combinator-rs
[INFO] finished tweaking git repo https://github.com/jabley/parser-combinator-rs
[INFO] tweaked toml for git repo https://github.com/jabley/parser-combinator-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jabley/parser-combinator-rs 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] f4698dd53d7cbfd4671aa47039260ee16ed7d132b95ee0cda0e02cb2f59d4032
[INFO] running `Command { std: "docker" "start" "-a" "f4698dd53d7cbfd4671aa47039260ee16ed7d132b95ee0cda0e02cb2f59d4032", kill_on_drop: false }`
[INFO] [stderr]     Checking parser-combinator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias `ParseResult` is never used
[INFO] [stdout]  --> src/lib.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | type ParseResult<'a, Output> = Result<(&'a str, Output), &'a str>;
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Parser` is never used
[INFO] [stdout]  --> src/lib.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Parser<'a, Output> {
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BoxedParser` is never constructed
[INFO] [stdout]   --> src/lib.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct BoxedParser<'a, Output> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl<'a, Output> BoxedParser<'a, Output> {
[INFO] [stdout]    | ---------------------------------------- associated function in this implementation
[INFO] [stdout] 51 |     fn new<P>(parser: P) -> Self
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Element` is never constructed
[INFO] [stdout]   --> src/lib.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | struct Element {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `the_letter_a` is never used
[INFO] [stdout]   --> src/lib.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn the_letter_a(input: &str) -> ParseResult<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_literal` is never used
[INFO] [stdout]   --> src/lib.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn match_literal<'a>(expected: &'static str) -> impl Parser<'a, ()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `identifier` is never used
[INFO] [stdout]   --> src/lib.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn identifier(input: &str) -> ParseResult<String> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pair` is never used
[INFO] [stdout]    --> src/lib.rs:109:4
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn pair<'a, P1, P2, R1, R2>(parser1: P1, parser2: P2) -> impl Parser<'a, (R1, R2)>
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `map` is never used
[INFO] [stdout]    --> src/lib.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn map<'a, P, F, A, B>(parser: P, map_fn: F) -> impl Parser<'a, B>
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `left` is never used
[INFO] [stdout]    --> src/lib.rs:135:4
[INFO] [stdout]     |
[INFO] [stdout] 135 | fn left<'a, P1, P2, R1, R2>(parser1: P1, parser2: P2) -> impl Parser<'a, R1>
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `right` is never used
[INFO] [stdout]    --> src/lib.rs:143:4
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn right<'a, P1, P2, R1, R2>(parser1: P1, parser2: P2) -> impl Parser<'a, R2>
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `one_or_more` is never used
[INFO] [stdout]    --> src/lib.rs:151:4
[INFO] [stdout]     |
[INFO] [stdout] 151 | fn one_or_more<'a, P, A>(parser: P) -> impl Parser<'a, Vec<A>>
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zero_or_more` is never used
[INFO] [stdout]    --> src/lib.rs:174:4
[INFO] [stdout]     |
[INFO] [stdout] 174 | fn zero_or_more<'a, P, A>(parser: P) -> impl Parser<'a, Vec<A>>
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `any_char` is never used
[INFO] [stdout]    --> src/lib.rs:190:4
[INFO] [stdout]     |
[INFO] [stdout] 190 | fn any_char(input: &str) -> ParseResult<char> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pred` is never used
[INFO] [stdout]    --> src/lib.rs:197:4
[INFO] [stdout]     |
[INFO] [stdout] 197 | fn pred<'a, P, A, F>(parser: P, predicate: F) -> impl Parser<'a, A>
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `whitespace_char` is never used
[INFO] [stdout]    --> src/lib.rs:212:4
[INFO] [stdout]     |
[INFO] [stdout] 212 | fn whitespace_char<'a>() -> impl Parser<'a, char> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `space1` is never used
[INFO] [stdout]    --> src/lib.rs:216:4
[INFO] [stdout]     |
[INFO] [stdout] 216 | fn space1<'a>() -> impl Parser<'a, Vec<char>> {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `space0` is never used
[INFO] [stdout]    --> src/lib.rs:220:4
[INFO] [stdout]     |
[INFO] [stdout] 220 | fn space0<'a>() -> impl Parser<'a, Vec<char>> {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quoted_string` is never used
[INFO] [stdout]    --> src/lib.rs:224:4
[INFO] [stdout]     |
[INFO] [stdout] 224 | fn quoted_string<'a>() -> impl Parser<'a, String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `attribute_pair` is never used
[INFO] [stdout]    --> src/lib.rs:235:4
[INFO] [stdout]     |
[INFO] [stdout] 235 | fn attribute_pair<'a>() -> impl Parser<'a, (String, String)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `attributes` is never used
[INFO] [stdout]    --> src/lib.rs:239:4
[INFO] [stdout]     |
[INFO] [stdout] 239 | fn attributes<'a>() -> impl Parser<'a, Vec<(String, String)>> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `element_start` is never used
[INFO] [stdout]    --> src/lib.rs:243:4
[INFO] [stdout]     |
[INFO] [stdout] 243 | fn element_start<'a>() -> impl Parser<'a, (String, Vec<(String, String)>)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `single_element` is never used
[INFO] [stdout]    --> src/lib.rs:247:4
[INFO] [stdout]     |
[INFO] [stdout] 247 | fn single_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `open_element` is never used
[INFO] [stdout]    --> src/lib.rs:255:4
[INFO] [stdout]     |
[INFO] [stdout] 255 | fn open_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `either` is never used
[INFO] [stdout]    --> src/lib.rs:263:4
[INFO] [stdout]     |
[INFO] [stdout] 263 | fn either<'a, P1, P2, A>(parser1: P1, parser2: P2) -> impl Parser<'a, A>
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `element` is never used
[INFO] [stdout]    --> src/lib.rs:274:4
[INFO] [stdout]     |
[INFO] [stdout] 274 | fn element<'a>() -> impl Parser<'a, Element> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `close_element` is never used
[INFO] [stdout]    --> src/lib.rs:278:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | fn close_element<'a>(expected_name: String) -> impl Parser<'a, String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `and_then` is never used
[INFO] [stdout]    --> src/lib.rs:283:4
[INFO] [stdout]     |
[INFO] [stdout] 283 | fn and_then<'a, P, F, A, B, NextP>(parser: P, f: F) -> impl Parser<'a, B>
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parent_element` is never used
[INFO] [stdout]    --> src/lib.rs:295:4
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn parent_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `whitespace_wrap` is never used
[INFO] [stdout]    --> src/lib.rs:305:4
[INFO] [stdout]     |
[INFO] [stdout] 305 | fn whitespace_wrap<'a, P, A>(parser: P) -> impl Parser<'a, A>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `the_letter_a` is never used
[INFO] [stdout]   --> src/lib.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn the_letter_a(input: &str) -> ParseResult<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "f4698dd53d7cbfd4671aa47039260ee16ed7d132b95ee0cda0e02cb2f59d4032", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4698dd53d7cbfd4671aa47039260ee16ed7d132b95ee0cda0e02cb2f59d4032", kill_on_drop: false }`
[INFO] [stdout] f4698dd53d7cbfd4671aa47039260ee16ed7d132b95ee0cda0e02cb2f59d4032