[INFO] cloning repository https://github.com/ustchcl/json_parser_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ustchcl/json_parser_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fustchcl%2Fjson_parser_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fustchcl%2Fjson_parser_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b36ba78dd16c25540f7144f82c38fbfdf75140e
[INFO] testing ustchcl/json_parser_in_rust against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fustchcl%2Fjson_parser_in_rust" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ustchcl/json_parser_in_rust on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ustchcl/json_parser_in_rust
[INFO] finished tweaking git repo https://github.com/ustchcl/json_parser_in_rust
[INFO] tweaked toml for git repo https://github.com/ustchcl/json_parser_in_rust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/ustchcl/json_parser_in_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c76b84f1d10284f0d20d6109e02d0653eb45ad04e2e91ce4868aebf86f20209
[INFO] running `Command { std: "docker" "start" "-a" "5c76b84f1d10284f0d20d6109e02d0653eb45ad04e2e91ce4868aebf86f20209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c76b84f1d10284f0d20d6109e02d0653eb45ad04e2e91ce4868aebf86f20209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c76b84f1d10284f0d20d6109e02d0653eb45ad04e2e91ce4868aebf86f20209", kill_on_drop: false }`
[INFO] [stdout] 5c76b84f1d10284f0d20d6109e02d0653eb45ad04e2e91ce4868aebf86f20209
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d11a80006653ff17371a9e0cd99a03e98895cdaf88b09cef56450f3fc3a6ede
[INFO] running `Command { std: "docker" "start" "-a" "3d11a80006653ff17371a9e0cd99a03e98895cdaf88b09cef56450f3fc3a6ede", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling json_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/json_parser.rs:555:9
[INFO] [stdout]     |
[INFO] [stdout] 555 |     let input: Input = "";
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ExpectedEof`
[INFO] [stdout]  --> src/json_parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ExpectedEof(Input),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/json_parser.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug, Clone)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `space_1`
[INFO] [stdout]    --> src/json_parser.rs:187:4
[INFO] [stdout]     |
[INFO] [stdout] 187 | fn space_1() -> List1Parser<char> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lower`
[INFO] [stdout]    --> src/json_parser.rs:192:4
[INFO] [stdout]     |
[INFO] [stdout] 192 | fn lower() -> SatisfyParser {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `upper`
[INFO] [stdout]    --> src/json_parser.rs:196:4
[INFO] [stdout]     |
[INFO] [stdout] 196 | fn upper() -> SatisfyParser {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `alpha`
[INFO] [stdout]    --> src/json_parser.rs:200:4
[INFO] [stdout]     |
[INFO] [stdout] 200 | fn alpha() -> SatisfyParser {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `comma_tok`
[INFO] [stdout]    --> src/json_parser.rs:224:4
[INFO] [stdout]     |
[INFO] [stdout] 224 | fn comma_tok() -> Tok<char> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quote`
[INFO] [stdout]    --> src/json_parser.rs:228:4
[INFO] [stdout]     |
[INFO] [stdout] 228 | fn quote() -> impl Parser<char> {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `option`
[INFO] [stdout]    --> src/json_parser.rs:251:4
[INFO] [stdout]     |
[INFO] [stdout] 251 | fn option<A>(a: A, p: Box<dyn Parser<A>>) -> impl Parser<A> where A: Clone, A: 'static {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `digits1`
[INFO] [stdout]    --> src/json_parser.rs:255:4
[INFO] [stdout]     |
[INFO] [stdout] 255 | fn digits1() -> List1Parser<char> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `one_of`
[INFO] [stdout]    --> src/json_parser.rs:259:4
[INFO] [stdout]     |
[INFO] [stdout] 259 | fn one_of(s: &'static str) -> SatisfyParser {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `none_of`
[INFO] [stdout]    --> src/json_parser.rs:263:4
[INFO] [stdout]     |
[INFO] [stdout] 263 | fn none_of(s: &'static str) -> SatisfyParser {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hexu`
[INFO] [stdout]    --> src/json_parser.rs:305:4
[INFO] [stdout]     |
[INFO] [stdout] 305 | fn hexu() -> impl Parser<char> {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]    --> src/json_parser.rs:554:8
[INFO] [stdout]     |
[INFO] [stdout] 554 | pub fn test() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.24s
[INFO] running `Command { std: "docker" "inspect" "3d11a80006653ff17371a9e0cd99a03e98895cdaf88b09cef56450f3fc3a6ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d11a80006653ff17371a9e0cd99a03e98895cdaf88b09cef56450f3fc3a6ede", kill_on_drop: false }`
[INFO] [stdout] 3d11a80006653ff17371a9e0cd99a03e98895cdaf88b09cef56450f3fc3a6ede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ac7820f9abc974c07c76f52393d225ca00ab0e52f85a9fc1b7b9dfe3d6b0388
[INFO] running `Command { std: "docker" "start" "-a" "8ac7820f9abc974c07c76f52393d225ca00ab0e52f85a9fc1b7b9dfe3d6b0388", kill_on_drop: false }`
[INFO] [stderr]    Compiling json_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/json_parser.rs:555:9
[INFO] [stdout]     |
[INFO] [stdout] 555 |     let input: Input = "";
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ExpectedEof`
[INFO] [stdout]  --> src/json_parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ExpectedEof(Input),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/json_parser.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug, Clone)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `space_1`
[INFO] [stdout]    --> src/json_parser.rs:187:4
[INFO] [stdout]     |
[INFO] [stdout] 187 | fn space_1() -> List1Parser<char> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lower`
[INFO] [stdout]    --> src/json_parser.rs:192:4
[INFO] [stdout]     |
[INFO] [stdout] 192 | fn lower() -> SatisfyParser {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `upper`
[INFO] [stdout]    --> src/json_parser.rs:196:4
[INFO] [stdout]     |
[INFO] [stdout] 196 | fn upper() -> SatisfyParser {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `alpha`
[INFO] [stdout]    --> src/json_parser.rs:200:4
[INFO] [stdout]     |
[INFO] [stdout] 200 | fn alpha() -> SatisfyParser {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `comma_tok`
[INFO] [stdout]    --> src/json_parser.rs:224:4
[INFO] [stdout]     |
[INFO] [stdout] 224 | fn comma_tok() -> Tok<char> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quote`
[INFO] [stdout]    --> src/json_parser.rs:228:4
[INFO] [stdout]     |
[INFO] [stdout] 228 | fn quote() -> impl Parser<char> {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `option`
[INFO] [stdout]    --> src/json_parser.rs:251:4
[INFO] [stdout]     |
[INFO] [stdout] 251 | fn option<A>(a: A, p: Box<dyn Parser<A>>) -> impl Parser<A> where A: Clone, A: 'static {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `digits1`
[INFO] [stdout]    --> src/json_parser.rs:255:4
[INFO] [stdout]     |
[INFO] [stdout] 255 | fn digits1() -> List1Parser<char> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `one_of`
[INFO] [stdout]    --> src/json_parser.rs:259:4
[INFO] [stdout]     |
[INFO] [stdout] 259 | fn one_of(s: &'static str) -> SatisfyParser {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `none_of`
[INFO] [stdout]    --> src/json_parser.rs:263:4
[INFO] [stdout]     |
[INFO] [stdout] 263 | fn none_of(s: &'static str) -> SatisfyParser {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hexu`
[INFO] [stdout]    --> src/json_parser.rs:305:4
[INFO] [stdout]     |
[INFO] [stdout] 305 | fn hexu() -> impl Parser<char> {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]    --> src/json_parser.rs:554:8
[INFO] [stdout]     |
[INFO] [stdout] 554 | pub fn test() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "8ac7820f9abc974c07c76f52393d225ca00ab0e52f85a9fc1b7b9dfe3d6b0388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ac7820f9abc974c07c76f52393d225ca00ab0e52f85a9fc1b7b9dfe3d6b0388", kill_on_drop: false }`
[INFO] [stdout] 8ac7820f9abc974c07c76f52393d225ca00ab0e52f85a9fc1b7b9dfe3d6b0388
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b6d3dbb0f0784303e3ce17ce31f9f04c21286490238e1be520794f64181cc83f
[INFO] running `Command { std: "docker" "start" "-a" "b6d3dbb0f0784303e3ce17ce31f9f04c21286490238e1be520794f64181cc83f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stdout] 
[INFO] [stderr]    --> src/json_parser.rs:555:9
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 555 |     let input: Input = "";
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ExpectedEof`
[INFO] [stderr]  --> src/json_parser.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     ExpectedEof(Input),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/json_parser.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[derive(Debug, Clone)]
[INFO] [stderr]   |          ^^^^^  ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `space_1`
[INFO] [stderr]    --> src/json_parser.rs:187:4
[INFO] [stderr]     |
[INFO] [stderr] 187 | fn space_1() -> List1Parser<char> {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lower`
[INFO] [stderr]    --> src/json_parser.rs:192:4
[INFO] [stderr]     |
[INFO] [stderr] 192 | fn lower() -> SatisfyParser {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `upper`
[INFO] [stderr]    --> src/json_parser.rs:196:4
[INFO] [stderr]     |
[INFO] [stderr] 196 | fn upper() -> SatisfyParser {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `alpha`
[INFO] [stderr]    --> src/json_parser.rs:200:4
[INFO] [stderr]     |
[INFO] [stderr] 200 | fn alpha() -> SatisfyParser {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `comma_tok`
[INFO] [stderr]    --> src/json_parser.rs:224:4
[INFO] [stderr]     |
[INFO] [stderr] 224 | fn comma_tok() -> Tok<char> {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quote`
[INFO] [stderr]    --> src/json_parser.rs:228:4
[INFO] [stderr]     |
[INFO] [stderr] 228 | fn quote() -> impl Parser<char> {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `option`
[INFO] [stderr]    --> src/json_parser.rs:251:4
[INFO] [stderr]     |
[INFO] [stderr] 251 | fn option<A>(a: A, p: Box<dyn Parser<A>>) -> impl Parser<A> where A: Clone, A: 'static {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `digits1`
[INFO] [stderr]    --> src/json_parser.rs:255:4
[INFO] [stderr]     |
[INFO] [stderr] 255 | fn digits1() -> List1Parser<char> {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `one_of`
[INFO] [stderr]    --> src/json_parser.rs:259:4
[INFO] [stderr]     |
[INFO] [stderr] 259 | fn one_of(s: &'static str) -> SatisfyParser {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `none_of`
[INFO] [stderr]    --> src/json_parser.rs:263:4
[INFO] [stderr]     |
[INFO] [stderr] 263 | fn none_of(s: &'static str) -> SatisfyParser {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hexu`
[INFO] [stderr]    --> src/json_parser.rs:305:4
[INFO] [stderr]     |
[INFO] [stderr] 305 | fn hexu() -> impl Parser<char> {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test`
[INFO] [stderr]    --> src/json_parser.rs:554:8
[INFO] [stderr]     |
[INFO] [stderr] 554 | pub fn test() {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `json_parser` (bin "json_parser" test) generated 14 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.58s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/json_parser-5e32a3a89650c257)
[INFO] running `Command { std: "docker" "inspect" "b6d3dbb0f0784303e3ce17ce31f9f04c21286490238e1be520794f64181cc83f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6d3dbb0f0784303e3ce17ce31f9f04c21286490238e1be520794f64181cc83f", kill_on_drop: false }`
[INFO] [stdout] b6d3dbb0f0784303e3ce17ce31f9f04c21286490238e1be520794f64181cc83f