[INFO] cloning repository https://github.com/Babidiii/combp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Babidiii/combp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBabidiii%2Fcombp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBabidiii%2Fcombp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ecbfe99464b1ac26790bb060840edfbd60a37d8a
[INFO] checking Babidiii/combp/ecbfe99464b1ac26790bb060840edfbd60a37d8a against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBabidiii%2Fcombp" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Babidiii/combp on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Babidiii/combp
[INFO] finished tweaking git repo https://github.com/Babidiii/combp
[INFO] tweaked toml for git repo https://github.com/Babidiii/combp written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Babidiii/combp 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27f36ef79ec89779dafc7667c736794b88764c43e7abd720210026a6dee0bd41
[INFO] running `Command { std: "docker" "start" "-a" "27f36ef79ec89779dafc7667c736794b88764c43e7abd720210026a6dee0bd41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27f36ef79ec89779dafc7667c736794b88764c43e7abd720210026a6dee0bd41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27f36ef79ec89779dafc7667c736794b88764c43e7abd720210026a6dee0bd41", kill_on_drop: false }`
[INFO] [stdout] 27f36ef79ec89779dafc7667c736794b88764c43e7abd720210026a6dee0bd41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f3abb8ccc90ccea33507d0fa4c82d1d446def4703f10a3e0217c101e161f0e9
[INFO] running `Command { std: "docker" "start" "-a" "5f3abb8ccc90ccea33507d0fa4c82d1d446def4703f10a3e0217c101e161f0e9", kill_on_drop: false }`
[INFO] [stderr]     Checking combp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `open_element` and `pred`
[INFO] [stdout]    --> src/lib.rs:330:80
[INFO] [stdout]     |
[INFO] [stdout] 330 |         any_char, attributes, element, identifier, match_literal, one_or_more, open_element, pair,
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^
[INFO] [stdout] 331 |         pred, quoted_string, single_element, zero_or_more, Element, Parser,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ParseResult` is never used
[INFO] [stdout]   --> src/lib.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | 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:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | trait Parser<'a, Output> {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_literal` is never used
[INFO] [stdout]   --> src/lib.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn match_literal<'a>(expected: &'static str) -> impl Parser<'a, ()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `the_letter_a` is never used
[INFO] [stdout]   --> src/lib.rs:80:4
[INFO] [stdout]    |
[INFO] [stdout] 80 | fn the_letter_a(input: &str) -> ParseResult<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `identifier` is never used
[INFO] [stdout]   --> src/lib.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | 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:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | 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:120:4
[INFO] [stdout]     |
[INFO] [stdout] 120 | fn map<'a, P, F, R1, R2>(parser: P, map: F) -> impl Parser<'a, R2>
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `left` is never used
[INFO] [stdout]    --> src/lib.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | 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:136:4
[INFO] [stdout]     |
[INFO] [stdout] 136 | 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:144:4
[INFO] [stdout]     |
[INFO] [stdout] 144 | fn one_or_more<'a, P, R1>(parser: P) -> impl Parser<'a, Vec<R1>>
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zero_or_more` is never used
[INFO] [stdout]    --> src/lib.rs:168:4
[INFO] [stdout]     |
[INFO] [stdout] 168 | 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:184:4
[INFO] [stdout]     |
[INFO] [stdout] 184 | 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:191:4
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn pred<'a, P, R, F>(parser: P, pred: F) -> impl Parser<'a, R>
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `either` is never used
[INFO] [stdout]    --> src/lib.rs:206:4
[INFO] [stdout]     |
[INFO] [stdout] 206 | fn either<'a, P1, P2, R>(parser1: P1, parser2: P2) -> impl Parser<'a, R>
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `and_then` is never used
[INFO] [stdout]    --> src/lib.rs:217:4
[INFO] [stdout]     |
[INFO] [stdout] 217 | fn and_then<'a, P, F, R1, R2, NextP>(parser: P, then_fn: F) -> impl Parser<'a, R2>
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `whitespace_char` is never used
[INFO] [stdout]    --> src/lib.rs:229:4
[INFO] [stdout]     |
[INFO] [stdout] 229 | fn whitespace_char<'a>() -> impl Parser<'a, char> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `whitespace_wrap` is never used
[INFO] [stdout]    --> src/lib.rs:233:4
[INFO] [stdout]     |
[INFO] [stdout] 233 | fn whitespace_wrap<'a, P, A>(parser: P) -> impl Parser<'a, A>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `space1` is never used
[INFO] [stdout]    --> src/lib.rs:240:4
[INFO] [stdout]     |
[INFO] [stdout] 240 | 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:244:4
[INFO] [stdout]     |
[INFO] [stdout] 244 | 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:248:4
[INFO] [stdout]     |
[INFO] [stdout] 248 | 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:259:4
[INFO] [stdout]     |
[INFO] [stdout] 259 | 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:263:4
[INFO] [stdout]     |
[INFO] [stdout] 263 | 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:267:4
[INFO] [stdout]     |
[INFO] [stdout] 267 | fn element_start<'a>() -> impl Parser<'a, (String, Vec<(String, String)>)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `open_element` is never used
[INFO] [stdout]    --> src/lib.rs:271:4
[INFO] [stdout]     |
[INFO] [stdout] 271 | fn open_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:279:4
[INFO] [stdout]     |
[INFO] [stdout] 279 | fn close_element<'a>(expected_name: String) -> impl Parser<'a, String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parent_element` is never used
[INFO] [stdout]    --> src/lib.rs:284:4
[INFO] [stdout]     |
[INFO] [stdout] 284 | fn parent_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `element` is never used
[INFO] [stdout]    --> src/lib.rs:294:4
[INFO] [stdout]     |
[INFO] [stdout] 294 | fn element<'a>() -> impl Parser<'a, Element> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `single_element` is never used
[INFO] [stdout]    --> src/lib.rs:298:4
[INFO] [stdout]     |
[INFO] [stdout] 298 | fn single_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BoxedParser` is never constructed
[INFO] [stdout]    --> src/lib.rs:306:8
[INFO] [stdout]     |
[INFO] [stdout] 306 | struct BoxedParser<'a, Output> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:311:8
[INFO] [stdout]     |
[INFO] [stdout] 310 | impl<'a, Output> BoxedParser<'a, Output> {
[INFO] [stdout]     | ---------------------------------------- associated function in this implementation
[INFO] [stdout] 311 |     fn new<P>(parser: P) -> Self
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `one_or_more` is never used
[INFO] [stdout]   --> src/lib.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | trait Parser<'a, Output> {
[INFO] [stdout]    |       ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn one_or_more(self) -> BoxedParser<'a, Vec<Output>>
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `the_letter_a` is never used
[INFO] [stdout]   --> src/lib.rs:80:4
[INFO] [stdout]    |
[INFO] [stdout] 80 | fn the_letter_a(input: &str) -> ParseResult<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "5f3abb8ccc90ccea33507d0fa4c82d1d446def4703f10a3e0217c101e161f0e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f3abb8ccc90ccea33507d0fa4c82d1d446def4703f10a3e0217c101e161f0e9", kill_on_drop: false }`
[INFO] [stdout] 5f3abb8ccc90ccea33507d0fa4c82d1d446def4703f10a3e0217c101e161f0e9