[INFO] cloning repository https://github.com/spooky-th-ghost/parse-combinators
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spooky-th-ghost/parse-combinators" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspooky-th-ghost%2Fparse-combinators", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspooky-th-ghost%2Fparse-combinators'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dffaa99cc0c45e2df5f8fbed440e03312f94efef
[INFO] checking spooky-th-ghost/parse-combinators against try#2277c63fa464d237b17b68d3b87f9fbb89e58a3e for pr-133570-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspooky-th-ghost%2Fparse-combinators" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spooky-th-ghost/parse-combinators on toolchain 2277c63fa464d237b17b68d3b87f9fbb89e58a3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/spooky-th-ghost/parse-combinators
[INFO] finished tweaking git repo https://github.com/spooky-th-ghost/parse-combinators
[INFO] tweaked toml for git repo https://github.com/spooky-th-ghost/parse-combinators written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/spooky-th-ghost/parse-combinators 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" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking spooky-th-ghost/parse-combinators against try#2277c63fa464d237b17b68d3b87f9fbb89e58a3e for pr-133570-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspooky-th-ghost%2Fparse-combinators" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spooky-th-ghost/parse-combinators on toolchain 2277c63fa464d237b17b68d3b87f9fbb89e58a3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/spooky-th-ghost/parse-combinators
[INFO] finished tweaking git repo https://github.com/spooky-th-ghost/parse-combinators
[INFO] tweaked toml for git repo https://github.com/spooky-th-ghost/parse-combinators written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/spooky-th-ghost/parse-combinators 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" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4517312bfd3721b1e20b82ed3c28887fd3e71c28d369f1f184f21a45a77dad6c
[INFO] running `Command { std: "docker" "start" "-a" "4517312bfd3721b1e20b82ed3c28887fd3e71c28d369f1f184f21a45a77dad6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4517312bfd3721b1e20b82ed3c28887fd3e71c28d369f1f184f21a45a77dad6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4517312bfd3721b1e20b82ed3c28887fd3e71c28d369f1f184f21a45a77dad6c", kill_on_drop: false }`
[INFO] [stdout] 4517312bfd3721b1e20b82ed3c28887fd3e71c28d369f1f184f21a45a77dad6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b20585269ac11c53eec0d0f8c03e0fe7ba294f0842260da1acbc64adaffd7d2e
[INFO] running `Command { std: "docker" "start" "-a" "b20585269ac11c53eec0d0f8c03e0fe7ba294f0842260da1acbc64adaffd7d2e", kill_on_drop: false }`
[INFO] [stderr]     Checking parser-combinators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::RangeBounds`
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::ops::RangeBounds;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/lib.rs:230:34
[INFO] [stdout]     |
[INFO] [stdout] 228 | impl<'a, F, Output> Parser<'a, Output> for F
[INFO] [stdout]     |      -- lifetime `'a` declared here
[INFO] [stdout] 229 | where
[INFO] [stdout] 230 |     F: Fn(&'a str) -> ParseResult<Output>,
[INFO] [stdout]     |                                  ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::RangeBounds`
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::ops::RangeBounds;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/lib.rs:230:34
[INFO] [stdout]     |
[INFO] [stdout] 228 | impl<'a, F, Output> Parser<'a, Output> for F
[INFO] [stdout]     |      -- lifetime `'a` declared here
[INFO] [stdout] 229 | where
[INFO] [stdout] 230 |     F: Fn(&'a str) -> ParseResult<Output>,
[INFO] [stdout]     |                                  ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `the_letter_a` is never used
[INFO] [stdout]   --> src/lib.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn the_letter_a(input: &str) -> Result<(&str, ()), &str> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_literal` is never used
[INFO] [stdout]   --> src/lib.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn match_literal<'a>(expected: &'static str) -> impl Parser<'a, ()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Element` is never constructed
[INFO] [stdout]   --> src/lib.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct Element {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `identifier` is never used
[INFO] [stdout]   --> src/lib.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn identifier(input: &str) -> ParseResult<String> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `old_pair` is never used
[INFO] [stdout]    --> src/lib.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn old_pair<P1, P2, R1, R2>(
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `old_map` is never used
[INFO] [stdout]    --> src/lib.rs:162:4
[INFO] [stdout]     |
[INFO] [stdout] 162 | fn old_map<P, F, A, B>(parser: P, map_fn: F) -> impl Fn(&str) -> Result<(&str, B), &str>
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ParseResult` is never used
[INFO] [stdout]    --> src/lib.rs:187:6
[INFO] [stdout]     |
[INFO] [stdout] 187 | type ParseResult<'a, Output> = Result<(&'a str, Output), &'a str>;
[INFO] [stdout]     |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Parser` is never used
[INFO] [stdout]    --> src/lib.rs:190:7
[INFO] [stdout]     |
[INFO] [stdout] 190 | trait Parser<'a, Output> {
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `map` is never used
[INFO] [stdout]    --> src/lib.rs:237:4
[INFO] [stdout]     |
[INFO] [stdout] 237 | 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 `pair` is never used
[INFO] [stdout]    --> src/lib.rs:249:4
[INFO] [stdout]     |
[INFO] [stdout] 249 | 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 `left` is never used
[INFO] [stdout]    --> src/lib.rs:263:4
[INFO] [stdout]     |
[INFO] [stdout] 263 | 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:271:4
[INFO] [stdout]     |
[INFO] [stdout] 271 | 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:291:4
[INFO] [stdout]     |
[INFO] [stdout] 291 | 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:314:4
[INFO] [stdout]     |
[INFO] [stdout] 314 | 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:347:4
[INFO] [stdout]     |
[INFO] [stdout] 347 | 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:357:4
[INFO] [stdout]     |
[INFO] [stdout] 357 | fn pred<'a, P, A, F>(parser: P, predicate: F) -> impl Parser<'a, A>
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `whitspace_char` is never used
[INFO] [stdout]    --> src/lib.rs:379:4
[INFO] [stdout]     |
[INFO] [stdout] 379 | fn whitspace_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:383:4
[INFO] [stdout]     |
[INFO] [stdout] 383 | 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:387:4
[INFO] [stdout]     |
[INFO] [stdout] 387 | 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:392:4
[INFO] [stdout]     |
[INFO] [stdout] 392 | 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:429:4
[INFO] [stdout]     |
[INFO] [stdout] 429 | 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:434:4
[INFO] [stdout]     |
[INFO] [stdout] 434 | 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:456:4
[INFO] [stdout]     |
[INFO] [stdout] 456 | 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:461:4
[INFO] [stdout]     |
[INFO] [stdout] 461 | 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:484:8
[INFO] [stdout]     |
[INFO] [stdout] 484 | struct BoxedParser<'a, Output> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:489:8
[INFO] [stdout]     |
[INFO] [stdout] 488 | impl<'a, Output> BoxedParser<'a, Output> {
[INFO] [stdout]     | ---------------------------------------- associated function in this implementation
[INFO] [stdout] 489 |     fn new<P>(parser: P) -> Self
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `open_element` is never used
[INFO] [stdout]    --> src/lib.rs:505:4
[INFO] [stdout]     |
[INFO] [stdout] 505 | 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:515:4
[INFO] [stdout]     |
[INFO] [stdout] 515 | 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:529:4
[INFO] [stdout]     |
[INFO] [stdout] 529 | 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:533:4
[INFO] [stdout]     |
[INFO] [stdout] 533 | 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:538:4
[INFO] [stdout]     |
[INFO] [stdout] 538 | fn parent_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `and_then` is never used
[INFO] [stdout]    --> src/lib.rs:548:4
[INFO] [stdout]     |
[INFO] [stdout] 548 | 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 `whitespace_wrap` is never used
[INFO] [stdout]    --> src/lib.rs:560:4
[INFO] [stdout]     |
[INFO] [stdout] 560 | fn whitespace_wrap<'a, P, A>(parser: P) -> impl Parser<'a, A>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `the_letter_a` is never used
[INFO] [stdout]   --> src/lib.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn the_letter_a(input: &str) -> Result<(&str, ()), &str> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `old_pair` is never used
[INFO] [stdout]    --> src/lib.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn old_pair<P1, P2, R1, R2>(
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `old_map` is never used
[INFO] [stdout]    --> src/lib.rs:162:4
[INFO] [stdout]     |
[INFO] [stdout] 162 | fn old_map<P, F, A, B>(parser: P, map_fn: F) -> impl Fn(&str) -> Result<(&str, B), &str>
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "b20585269ac11c53eec0d0f8c03e0fe7ba294f0842260da1acbc64adaffd7d2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b20585269ac11c53eec0d0f8c03e0fe7ba294f0842260da1acbc64adaffd7d2e", kill_on_drop: false }`
[INFO] [stdout] b20585269ac11c53eec0d0f8c03e0fe7ba294f0842260da1acbc64adaffd7d2e