[INFO] cloning repository https://github.com/kj455/my-parser-combinator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kj455/my-parser-combinator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkj455%2Fmy-parser-combinator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkj455%2Fmy-parser-combinator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 258c98f7886b13235f7a051cfbc4977845f973b1
[INFO] checking kj455/my-parser-combinator against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkj455%2Fmy-parser-combinator" "/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/kj455/my-parser-combinator on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kj455/my-parser-combinator
[INFO] finished tweaking git repo https://github.com/kj455/my-parser-combinator
[INFO] tweaked toml for git repo https://github.com/kj455/my-parser-combinator written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kj455/my-parser-combinator 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12db702d6a3d63c937b227500509fc91c09a883059ee49c06a07bebfc5668fb8
[INFO] running `Command { std: "docker" "start" "-a" "12db702d6a3d63c937b227500509fc91c09a883059ee49c06a07bebfc5668fb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12db702d6a3d63c937b227500509fc91c09a883059ee49c06a07bebfc5668fb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12db702d6a3d63c937b227500509fc91c09a883059ee49c06a07bebfc5668fb8", kill_on_drop: false }`
[INFO] [stdout] 12db702d6a3d63c937b227500509fc91c09a883059ee49c06a07bebfc5668fb8
[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_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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69bc6ac94b2652b0f39470f2e21ca70e94ab5200ec9e8307111b1e802675fd4d
[INFO] running `Command { std: "docker" "start" "-a" "69bc6ac94b2652b0f39470f2e21ca70e94ab5200ec9e8307111b1e802675fd4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking parser-combinator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `char::char`, `digits::digits`, `lexeme::lexeme`, `or::or`, `string::string`
[INFO] [stdout]  --> src/cat.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     char::char,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 3 |     digits::digits,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     helper::{parser_closure, Parser},
[INFO] [stdout] 5 |     string::string, or::or, lexeme::lexeme,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^  ^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `char::char`, `digits::digits`
[INFO] [stdout]  --> src/lexeme.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     char::char,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 3 |     digits::digits,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `digits::digits`
[INFO] [stdout]  --> src/map.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     digits::digits,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `digits::digits`, `map::map`, `string::string`
[INFO] [stdout]  --> src/or.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     digits::digits,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 3 |     helper::{parser_closure, Parser},
[INFO] [stdout] 4 |     map::map,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 5 |     string::string,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `char::char`, `digits::digits`, `lexeme::lexeme`, `or::or`
[INFO] [stdout]  --> src/rep.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     char::char,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 3 |     digits::digits,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     helper::{parser_closure, Parser},
[INFO] [stdout] 5 |     lexeme::lexeme,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     or::or,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `char::char`, `digits::digits`, `lexeme::lexeme`
[INFO] [stdout]  --> src/split.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     char::char,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 5 |     digits::digits,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     helper::{parser_closure, Parser},
[INFO] [stdout] 7 |     lexeme::lexeme,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lexeme::lexeme`
[INFO] [stdout]  --> src/string.rs:2:39
[INFO] [stdout]   |
[INFO] [stdout] 2 |     helper::{parser_closure, Parser}, lexeme::lexeme,
[INFO] [stdout]   |                                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cat_multiple` is never used
[INFO] [stdout]   --> src/cat.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn cat_multiple<T>(list: Vec<impl Parser<T>>) -> impl Parser<Vec<T>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `digits` is never used
[INFO] [stdout]  --> src/digits.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn digits(s: &str) -> Option<(u64, &str)> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `json_str` should have an upper case name
[INFO] [stdout]   --> src/main.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 |     const json_str: &str = r#"{
[INFO] [stdout]    |           ^^^^^^^^ help: convert the identifier to upper case: `JSON_STR`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parser`
[INFO] [stdout]   --> src/cat.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let parser = cat_multiple(list);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parser`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `json_str` should have an upper case name
[INFO] [stdout]   --> src/main.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 |     const json_str: &str = r#"{
[INFO] [stdout]    |           ^^^^^^^^ help: convert the identifier to upper case: `JSON_STR`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.77s
[INFO] running `Command { std: "docker" "inspect" "69bc6ac94b2652b0f39470f2e21ca70e94ab5200ec9e8307111b1e802675fd4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69bc6ac94b2652b0f39470f2e21ca70e94ab5200ec9e8307111b1e802675fd4d", kill_on_drop: false }`
[INFO] [stdout] 69bc6ac94b2652b0f39470f2e21ca70e94ab5200ec9e8307111b1e802675fd4d
[INFO] checking kj455/my-parser-combinator against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkj455%2Fmy-parser-combinator" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kj455/my-parser-combinator on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kj455/my-parser-combinator
[INFO] finished tweaking git repo https://github.com/kj455/my-parser-combinator
[INFO] tweaked toml for git repo https://github.com/kj455/my-parser-combinator written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kj455/my-parser-combinator 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df92b7ec729f0940c710ac1b6f03a0068734678d4073f967fa7bae137ed354d0
[INFO] running `Command { std: "docker" "start" "-a" "df92b7ec729f0940c710ac1b6f03a0068734678d4073f967fa7bae137ed354d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df92b7ec729f0940c710ac1b6f03a0068734678d4073f967fa7bae137ed354d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df92b7ec729f0940c710ac1b6f03a0068734678d4073f967fa7bae137ed354d0", kill_on_drop: false }`
[INFO] [stdout] df92b7ec729f0940c710ac1b6f03a0068734678d4073f967fa7bae137ed354d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 975a1015a194ada0480a1d6bb427760661424d80eb5098e328b21b38829929d5
[INFO] running `Command { std: "docker" "start" "-a" "975a1015a194ada0480a1d6bb427760661424d80eb5098e328b21b38829929d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking parser-combinator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `char::char`, `digits::digits`, `lexeme::lexeme`, `or::or`, `string::string`
[INFO] [stdout]  --> src/cat.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     char::char,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 3 |     digits::digits,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     helper::{parser_closure, Parser},
[INFO] [stdout] 5 |     string::string, or::or, lexeme::lexeme,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^  ^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `char::char`, `digits::digits`
[INFO] [stdout]  --> src/lexeme.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     char::char,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 3 |     digits::digits,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `digits::digits`
[INFO] [stdout]  --> src/map.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     digits::digits,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `digits::digits`, `map::map`, `string::string`
[INFO] [stdout]  --> src/or.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     digits::digits,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 3 |     helper::{parser_closure, Parser},
[INFO] [stdout] 4 |     map::map,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 5 |     string::string,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `char::char`, `digits::digits`, `lexeme::lexeme`, `or::or`
[INFO] [stdout]  --> src/rep.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     char::char,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 3 |     digits::digits,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     helper::{parser_closure, Parser},
[INFO] [stdout] 5 |     lexeme::lexeme,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     or::or,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `char::char`, `digits::digits`, `lexeme::lexeme`
[INFO] [stdout]  --> src/split.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     char::char,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 5 |     digits::digits,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     helper::{parser_closure, Parser},
[INFO] [stdout] 7 |     lexeme::lexeme,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lexeme::lexeme`
[INFO] [stdout]  --> src/string.rs:2:39
[INFO] [stdout]   |
[INFO] [stdout] 2 |     helper::{parser_closure, Parser}, lexeme::lexeme,
[INFO] [stdout]   |                                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cat_multiple` is never used
[INFO] [stdout]   --> src/cat.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn cat_multiple<T>(list: Vec<impl Parser<T>>) -> impl Parser<Vec<T>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `digits` is never used
[INFO] [stdout]  --> src/digits.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn digits(s: &str) -> Option<(u64, &str)> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `json_str` should have an upper case name
[INFO] [stdout]   --> src/main.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 |     const json_str: &str = r#"{
[INFO] [stdout]    |           ^^^^^^^^ help: convert the identifier to upper case: `JSON_STR`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parser`
[INFO] [stdout]   --> src/cat.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let parser = cat_multiple(list);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parser`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `json_str` should have an upper case name
[INFO] [stdout]   --> src/main.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 |     const json_str: &str = r#"{
[INFO] [stdout]    |           ^^^^^^^^ help: convert the identifier to upper case: `JSON_STR`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `Command { std: "docker" "inspect" "975a1015a194ada0480a1d6bb427760661424d80eb5098e328b21b38829929d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "975a1015a194ada0480a1d6bb427760661424d80eb5098e328b21b38829929d5", kill_on_drop: false }`
[INFO] [stdout] 975a1015a194ada0480a1d6bb427760661424d80eb5098e328b21b38829929d5