[INFO] updating cached repository https://github.com/modulitos/rust-parser-combinators
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2dc87697dd188220520302a805560bbec514d13f
[INFO] testing modulitos/rust-parser-combinators against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodulitos%2Frust-parser-combinators" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/modulitos/rust-parser-combinators on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/modulitos/rust-parser-combinators
[INFO] finished tweaking git repo https://github.com/modulitos/rust-parser-combinators
[INFO] tweaked toml for git repo https://github.com/modulitos/rust-parser-combinators written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/modulitos/rust-parser-combinators already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0cbbae7b746aa54e741b7f935332350da078eee38f1ab60ddafd523df1dd81ac
[INFO] running `"docker" "start" "-a" "0cbbae7b746aa54e741b7f935332350da078eee38f1ab60ddafd523df1dd81ac"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling parser-combinator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     fn new<P>(parser: P) -> Self
[INFO] [stderr] 14 | |     where
[INFO] [stderr] 15 | |         P: Parser<'a, Output> + 'a,
[INFO] [stderr] 16 | |     {
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |         }
[INFO] [stderr] 20 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_literal`
[INFO] [stderr]   --> src/lib.rs:78:4
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn match_literal<'a>(expected: &'static str) -> impl Parser<'a, ()> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `identifier`
[INFO] [stderr]   --> src/lib.rs:99:4
[INFO] [stderr]    |
[INFO] [stderr] 99 | fn identifier(input: &str) -> ParseResult<String> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pair`
[INFO] [stderr]    --> src/lib.rs:136:4
[INFO] [stderr]     |
[INFO] [stderr] 136 | fn pair<'a, P1, P2, R1, R2>(parser1: P1, parser2: P2) -> impl Parser<'a, (R1, R2)>
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `map`
[INFO] [stderr]    --> src/lib.rs:161:4
[INFO] [stderr]     |
[INFO] [stderr] 161 | fn map<'a, P, F, A, B>(parser: P, map_fn: F) -> impl Parser<'a, B>
[INFO] [stderr]     |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `left`
[INFO] [stderr]    --> src/lib.rs:174:4
[INFO] [stderr]     |
[INFO] [stderr] 174 | fn left<'a, P1, P2, R1, R2>(parser1: P1, parser2: P2) -> impl Parser<'a, R1>
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `right`
[INFO] [stderr]    --> src/lib.rs:182:4
[INFO] [stderr]     |
[INFO] [stderr] 182 | fn right<'a, P1, P2, R1, R2>(parser1: P1, parser2: P2) -> impl Parser<'a, R2>
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `one_or_more`
[INFO] [stderr]    --> src/lib.rs:204:4
[INFO] [stderr]     |
[INFO] [stderr] 204 | fn one_or_more<'a, P, A>(parser: P) -> impl Parser<'a, Vec<A>>
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `zero_or_more`
[INFO] [stderr]    --> src/lib.rs:227:4
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn zero_or_more<'a, P, A>(parser: P) -> impl Parser<'a, Vec<A>>
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `any_char`
[INFO] [stderr]    --> src/lib.rs:264:4
[INFO] [stderr]     |
[INFO] [stderr] 264 | fn any_char(input: &str) -> ParseResult<char> {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pred`
[INFO] [stderr]    --> src/lib.rs:272:4
[INFO] [stderr]     |
[INFO] [stderr] 272 | fn pred<'a, P, A, F>(parser: P, predicate: F) -> impl Parser<'a, A>
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `whitespace_char`
[INFO] [stderr]    --> src/lib.rs:295:4
[INFO] [stderr]     |
[INFO] [stderr] 295 | fn whitespace_char<'a>() -> impl Parser<'a, char> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `space1`
[INFO] [stderr]    --> src/lib.rs:299:4
[INFO] [stderr]     |
[INFO] [stderr] 299 | fn space1<'a>() -> impl Parser<'a, Vec<char>> {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `space0`
[INFO] [stderr]    --> src/lib.rs:303:4
[INFO] [stderr]     |
[INFO] [stderr] 303 | fn space0<'a>() -> impl Parser<'a, Vec<char>> {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quoted_string`
[INFO] [stderr]    --> src/lib.rs:310:4
[INFO] [stderr]     |
[INFO] [stderr] 310 | fn quoted_string<'a>() -> impl Parser<'a, String> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `attribute_pair`
[INFO] [stderr]    --> src/lib.rs:333:4
[INFO] [stderr]     |
[INFO] [stderr] 333 | fn attribute_pair<'a>() -> impl Parser<'a, (String, String)> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `attributes`
[INFO] [stderr]    --> src/lib.rs:337:4
[INFO] [stderr]     |
[INFO] [stderr] 337 | fn attributes<'a>() -> impl Parser<'a, Vec<(String, String)>> {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `element_start`
[INFO] [stderr]    --> src/lib.rs:355:4
[INFO] [stderr]     |
[INFO] [stderr] 355 | fn element_start<'a>() -> impl Parser<'a, (String, Vec<(String, String)>)> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `single_element`
[INFO] [stderr]    --> src/lib.rs:359:4
[INFO] [stderr]     |
[INFO] [stderr] 359 | fn single_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `open_element`
[INFO] [stderr]    --> src/lib.rs:390:4
[INFO] [stderr]     |
[INFO] [stderr] 390 | fn open_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `either`
[INFO] [stderr]    --> src/lib.rs:398:4
[INFO] [stderr]     |
[INFO] [stderr] 398 | fn either<'a, P1, P2, A>(parser1: P1, parser2: P2) -> impl Parser<'a, A>
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `close_element`
[INFO] [stderr]    --> src/lib.rs:409:4
[INFO] [stderr]     |
[INFO] [stderr] 409 | fn close_element<'a>(expected_name: String) -> impl Parser<'a, String> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `and_then`
[INFO] [stderr]    --> src/lib.rs:425:4
[INFO] [stderr]     |
[INFO] [stderr] 425 | fn and_then<'a, A, P, B, NextP, F>(parser: P, f: F) -> impl Parser<'a, B>
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parent_element`
[INFO] [stderr]    --> src/lib.rs:437:4
[INFO] [stderr]     |
[INFO] [stderr] 437 | fn parent_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `whitespace_wrap`
[INFO] [stderr]    --> src/lib.rs:447:4
[INFO] [stderr]     |
[INFO] [stderr] 447 | fn whitespace_wrap<'a, P, A>(parser: P) -> impl Parser<'a, A>
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `element`
[INFO] [stderr]    --> src/lib.rs:454:4
[INFO] [stderr]     |
[INFO] [stderr] 454 | fn element<'a>() -> impl Parser<'a, Element> {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 26 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `"docker" "inspect" "0cbbae7b746aa54e741b7f935332350da078eee38f1ab60ddafd523df1dd81ac"`
[INFO] running `"docker" "rm" "-f" "0cbbae7b746aa54e741b7f935332350da078eee38f1ab60ddafd523df1dd81ac"`
[INFO] [stdout] 0cbbae7b746aa54e741b7f935332350da078eee38f1ab60ddafd523df1dd81ac
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 54e63baca4c598917d8389bb2bd4951619b6e9a52c4fee89ebf6863d7a2c8fe9
[INFO] running `"docker" "start" "-a" "54e63baca4c598917d8389bb2bd4951619b6e9a52c4fee89ebf6863d7a2c8fe9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling parser-combinator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     fn new<P>(parser: P) -> Self
[INFO] [stderr] 14 | |     where
[INFO] [stderr] 15 | |         P: Parser<'a, Output> + 'a,
[INFO] [stderr] 16 | |     {
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |         }
[INFO] [stderr] 20 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_literal`
[INFO] [stderr]   --> src/lib.rs:78:4
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn match_literal<'a>(expected: &'static str) -> impl Parser<'a, ()> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `identifier`
[INFO] [stderr]   --> src/lib.rs:99:4
[INFO] [stderr]    |
[INFO] [stderr] 99 | fn identifier(input: &str) -> ParseResult<String> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pair`
[INFO] [stderr]    --> src/lib.rs:136:4
[INFO] [stderr]     |
[INFO] [stderr] 136 | fn pair<'a, P1, P2, R1, R2>(parser1: P1, parser2: P2) -> impl Parser<'a, (R1, R2)>
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `map`
[INFO] [stderr]    --> src/lib.rs:161:4
[INFO] [stderr]     |
[INFO] [stderr] 161 | fn map<'a, P, F, A, B>(parser: P, map_fn: F) -> impl Parser<'a, B>
[INFO] [stderr]     |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `left`
[INFO] [stderr]    --> src/lib.rs:174:4
[INFO] [stderr]     |
[INFO] [stderr] 174 | fn left<'a, P1, P2, R1, R2>(parser1: P1, parser2: P2) -> impl Parser<'a, R1>
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `right`
[INFO] [stderr]    --> src/lib.rs:182:4
[INFO] [stderr]     |
[INFO] [stderr] 182 | fn right<'a, P1, P2, R1, R2>(parser1: P1, parser2: P2) -> impl Parser<'a, R2>
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `one_or_more`
[INFO] [stderr]    --> src/lib.rs:204:4
[INFO] [stderr]     |
[INFO] [stderr] 204 | fn one_or_more<'a, P, A>(parser: P) -> impl Parser<'a, Vec<A>>
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `zero_or_more`
[INFO] [stderr]    --> src/lib.rs:227:4
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn zero_or_more<'a, P, A>(parser: P) -> impl Parser<'a, Vec<A>>
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `any_char`
[INFO] [stderr]    --> src/lib.rs:264:4
[INFO] [stderr]     |
[INFO] [stderr] 264 | fn any_char(input: &str) -> ParseResult<char> {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pred`
[INFO] [stderr]    --> src/lib.rs:272:4
[INFO] [stderr]     |
[INFO] [stderr] 272 | fn pred<'a, P, A, F>(parser: P, predicate: F) -> impl Parser<'a, A>
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `whitespace_char`
[INFO] [stderr]    --> src/lib.rs:295:4
[INFO] [stderr]     |
[INFO] [stderr] 295 | fn whitespace_char<'a>() -> impl Parser<'a, char> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `space1`
[INFO] [stderr]    --> src/lib.rs:299:4
[INFO] [stderr]     |
[INFO] [stderr] 299 | fn space1<'a>() -> impl Parser<'a, Vec<char>> {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `space0`
[INFO] [stderr]    --> src/lib.rs:303:4
[INFO] [stderr]     |
[INFO] [stderr] 303 | fn space0<'a>() -> impl Parser<'a, Vec<char>> {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quoted_string`
[INFO] [stderr]    --> src/lib.rs:310:4
[INFO] [stderr]     |
[INFO] [stderr] 310 | fn quoted_string<'a>() -> impl Parser<'a, String> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `attribute_pair`
[INFO] [stderr]    --> src/lib.rs:333:4
[INFO] [stderr]     |
[INFO] [stderr] 333 | fn attribute_pair<'a>() -> impl Parser<'a, (String, String)> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `attributes`
[INFO] [stderr]    --> src/lib.rs:337:4
[INFO] [stderr]     |
[INFO] [stderr] 337 | fn attributes<'a>() -> impl Parser<'a, Vec<(String, String)>> {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `element_start`
[INFO] [stderr]    --> src/lib.rs:355:4
[INFO] [stderr]     |
[INFO] [stderr] 355 | fn element_start<'a>() -> impl Parser<'a, (String, Vec<(String, String)>)> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `single_element`
[INFO] [stderr]    --> src/lib.rs:359:4
[INFO] [stderr]     |
[INFO] [stderr] 359 | fn single_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `open_element`
[INFO] [stderr]    --> src/lib.rs:390:4
[INFO] [stderr]     |
[INFO] [stderr] 390 | fn open_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `either`
[INFO] [stderr]    --> src/lib.rs:398:4
[INFO] [stderr]     |
[INFO] [stderr] 398 | fn either<'a, P1, P2, A>(parser1: P1, parser2: P2) -> impl Parser<'a, A>
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `close_element`
[INFO] [stderr]    --> src/lib.rs:409:4
[INFO] [stderr]     |
[INFO] [stderr] 409 | fn close_element<'a>(expected_name: String) -> impl Parser<'a, String> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `and_then`
[INFO] [stderr]    --> src/lib.rs:425:4
[INFO] [stderr]     |
[INFO] [stderr] 425 | fn and_then<'a, A, P, B, NextP, F>(parser: P, f: F) -> impl Parser<'a, B>
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parent_element`
[INFO] [stderr]    --> src/lib.rs:437:4
[INFO] [stderr]     |
[INFO] [stderr] 437 | fn parent_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `whitespace_wrap`
[INFO] [stderr]    --> src/lib.rs:447:4
[INFO] [stderr]     |
[INFO] [stderr] 447 | fn whitespace_wrap<'a, P, A>(parser: P) -> impl Parser<'a, A>
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `element`
[INFO] [stderr]    --> src/lib.rs:454:4
[INFO] [stderr]     |
[INFO] [stderr] 454 | fn element<'a>() -> impl Parser<'a, Element> {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 26 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.12s
[INFO] running `"docker" "inspect" "54e63baca4c598917d8389bb2bd4951619b6e9a52c4fee89ebf6863d7a2c8fe9"`
[INFO] running `"docker" "rm" "-f" "54e63baca4c598917d8389bb2bd4951619b6e9a52c4fee89ebf6863d7a2c8fe9"`
[INFO] [stdout] 54e63baca4c598917d8389bb2bd4951619b6e9a52c4fee89ebf6863d7a2c8fe9
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bc9ae25154ae6b78392039bef8b6dbc6a9497122ed29d08675904e4cd81389dc
[INFO] running `"docker" "start" "-a" "bc9ae25154ae6b78392039bef8b6dbc6a9497122ed29d08675904e4cd81389dc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     fn new<P>(parser: P) -> Self
[INFO] [stderr] 14 | |     where
[INFO] [stderr] 15 | |         P: Parser<'a, Output> + 'a,
[INFO] [stderr] 16 | |     {
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |         }
[INFO] [stderr] 20 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_literal`
[INFO] [stderr]   --> src/lib.rs:78:4
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn match_literal<'a>(expected: &'static str) -> impl Parser<'a, ()> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `identifier`
[INFO] [stderr]   --> src/lib.rs:99:4
[INFO] [stderr]    |
[INFO] [stderr] 99 | fn identifier(input: &str) -> ParseResult<String> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pair`
[INFO] [stderr]    --> src/lib.rs:136:4
[INFO] [stderr]     |
[INFO] [stderr] 136 | fn pair<'a, P1, P2, R1, R2>(parser1: P1, parser2: P2) -> impl Parser<'a, (R1, R2)>
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `map`
[INFO] [stderr]    --> src/lib.rs:161:4
[INFO] [stderr]     |
[INFO] [stderr] 161 | fn map<'a, P, F, A, B>(parser: P, map_fn: F) -> impl Parser<'a, B>
[INFO] [stderr]     |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `left`
[INFO] [stderr]    --> src/lib.rs:174:4
[INFO] [stderr]     |
[INFO] [stderr] 174 | fn left<'a, P1, P2, R1, R2>(parser1: P1, parser2: P2) -> impl Parser<'a, R1>
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `right`
[INFO] [stderr]    --> src/lib.rs:182:4
[INFO] [stderr]     |
[INFO] [stderr] 182 | fn right<'a, P1, P2, R1, R2>(parser1: P1, parser2: P2) -> impl Parser<'a, R2>
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `one_or_more`
[INFO] [stderr]    --> src/lib.rs:204:4
[INFO] [stderr]     |
[INFO] [stderr] 204 | fn one_or_more<'a, P, A>(parser: P) -> impl Parser<'a, Vec<A>>
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `zero_or_more`
[INFO] [stderr]    --> src/lib.rs:227:4
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn zero_or_more<'a, P, A>(parser: P) -> impl Parser<'a, Vec<A>>
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `any_char`
[INFO] [stderr]    --> src/lib.rs:264:4
[INFO] [stderr]     |
[INFO] [stderr] 264 | fn any_char(input: &str) -> ParseResult<char> {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pred`
[INFO] [stderr]    --> src/lib.rs:272:4
[INFO] [stderr]     |
[INFO] [stderr] 272 | fn pred<'a, P, A, F>(parser: P, predicate: F) -> impl Parser<'a, A>
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `whitespace_char`
[INFO] [stderr]    --> src/lib.rs:295:4
[INFO] [stderr]     |
[INFO] [stderr] 295 | fn whitespace_char<'a>() -> impl Parser<'a, char> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `space1`
[INFO] [stderr]    --> src/lib.rs:299:4
[INFO] [stderr]     |
[INFO] [stderr] 299 | fn space1<'a>() -> impl Parser<'a, Vec<char>> {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `space0`
[INFO] [stderr]    --> src/lib.rs:303:4
[INFO] [stderr]     |
[INFO] [stderr] 303 | fn space0<'a>() -> impl Parser<'a, Vec<char>> {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quoted_string`
[INFO] [stderr]    --> src/lib.rs:310:4
[INFO] [stderr]     |
[INFO] [stderr] 310 | fn quoted_string<'a>() -> impl Parser<'a, String> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `attribute_pair`
[INFO] [stderr]    --> src/lib.rs:333:4
[INFO] [stderr]     |
[INFO] [stderr] 333 | fn attribute_pair<'a>() -> impl Parser<'a, (String, String)> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `attributes`
[INFO] [stderr]    --> src/lib.rs:337:4
[INFO] [stderr]     |
[INFO] [stderr] 337 | fn attributes<'a>() -> impl Parser<'a, Vec<(String, String)>> {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `element_start`
[INFO] [stderr]    --> src/lib.rs:355:4
[INFO] [stderr]     |
[INFO] [stderr] 355 | fn element_start<'a>() -> impl Parser<'a, (String, Vec<(String, String)>)> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `single_element`
[INFO] [stderr]    --> src/lib.rs:359:4
[INFO] [stderr]     |
[INFO] [stderr] 359 | fn single_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `open_element`
[INFO] [stderr]    --> src/lib.rs:390:4
[INFO] [stderr]     |
[INFO] [stderr] 390 | fn open_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `either`
[INFO] [stderr]    --> src/lib.rs:398:4
[INFO] [stderr]     |
[INFO] [stderr] 398 | fn either<'a, P1, P2, A>(parser1: P1, parser2: P2) -> impl Parser<'a, A>
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `close_element`
[INFO] [stderr]    --> src/lib.rs:409:4
[INFO] [stderr]     |
[INFO] [stderr] 409 | fn close_element<'a>(expected_name: String) -> impl Parser<'a, String> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `and_then`
[INFO] [stderr]    --> src/lib.rs:425:4
[INFO] [stderr]     |
[INFO] [stderr] 425 | fn and_then<'a, A, P, B, NextP, F>(parser: P, f: F) -> impl Parser<'a, B>
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parent_element`
[INFO] [stderr]    --> src/lib.rs:437:4
[INFO] [stderr]     |
[INFO] [stderr] 437 | fn parent_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `whitespace_wrap`
[INFO] [stderr]    --> src/lib.rs:447:4
[INFO] [stderr]     |
[INFO] [stderr] 447 | fn whitespace_wrap<'a, P, A>(parser: P) -> impl Parser<'a, A>
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `element`
[INFO] [stderr]    --> src/lib.rs:454:4
[INFO] [stderr]     |
[INFO] [stderr] 454 | fn element<'a>() -> impl Parser<'a, Element> {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 26 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/parser_combinator-64e9477d0cb4c170
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test attribute_parser ... ok
[INFO] [stdout] test identifier_parser ... ok
[INFO] [stdout] test one_or_more_combinator ... ok
[INFO] [stdout] test literal_parser ... ok
[INFO] [stdout] test predicate_combinator ... ok
[INFO] [stdout] test mismatched_closing_tag ... ok
[INFO] [stdout] test pair_combinator ... ok
[INFO] [stdout] test right_combinator ... ok
[INFO] [stdout] test single_element_parser_fail ... ok
[INFO] [stdout] test quoted_string_parser ... ok
[INFO] [stdout] test zero_or_more_combinator ... ok
[INFO] [stdout] test single_element_parser ... ok
[INFO] [stdout] test xml_parser ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/parser_combinator-f1f73f9110f370b0
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests parser-combinator
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bc9ae25154ae6b78392039bef8b6dbc6a9497122ed29d08675904e4cd81389dc"`
[INFO] running `"docker" "rm" "-f" "bc9ae25154ae6b78392039bef8b6dbc6a9497122ed29d08675904e4cd81389dc"`
[INFO] [stdout] bc9ae25154ae6b78392039bef8b6dbc6a9497122ed29d08675904e4cd81389dc