[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] checking ustchcl/json_parser_in_rust against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fustchcl%2Fjson_parser_in_rust" "/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/ustchcl/json_parser_in_rust on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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-4-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ef4a0ed1be00c7c3cc9059ade2a9926b95c5f64fe0a6a3427a110dbf691f6a4
[INFO] running `Command { std: "docker" "start" "-a" "3ef4a0ed1be00c7c3cc9059ade2a9926b95c5f64fe0a6a3427a110dbf691f6a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ef4a0ed1be00c7c3cc9059ade2a9926b95c5f64fe0a6a3427a110dbf691f6a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ef4a0ed1be00c7c3cc9059ade2a9926b95c5f64fe0a6a3427a110dbf691f6a4", kill_on_drop: false }`
[INFO] [stdout] 3ef4a0ed1be00c7c3cc9059ade2a9926b95c5f64fe0a6a3427a110dbf691f6a4
[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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f21dda5c533b1ba97ca131c0d138d30af84666f3669a13be12a6fadf011906fc
[INFO] running `Command { std: "docker" "start" "-a" "f21dda5c533b1ba97ca131c0d138d30af84666f3669a13be12a6fadf011906fc", kill_on_drop: false }`
[INFO] [stderr]     Checking 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: 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: field `0` is never read
[INFO] [stdout]  --> src/json_parser.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 |     UnexpectedChar(char),
[INFO] [stdout]   |     -------------- ^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 |     UnexpectedChar(()),
[INFO] [stdout]   |                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/json_parser.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 |     UnexpectedString(MyStr),
[INFO] [stdout]    |     ---------------- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     UnexpectedString(()),
[INFO] [stdout]    |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ExpectedEof` is never constructed
[INFO] [stdout]  --> src/json_parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum ParseError {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 7 |     UnexpectedEof,
[INFO] [stdout] 8 |     ExpectedEof(Input),
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnexpectedCharParser` is never constructed
[INFO] [stdout]   --> src/json_parser.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct UnexpectedCharParser(char);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConstantParser` is never constructed
[INFO] [stdout]   --> src/json_parser.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct ConstantParser<A>(ParseResult<A>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DropAParser` is never constructed
[INFO] [stdout]   --> src/json_parser.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct DropAParser<A, B>(Box<dyn Parser<A>>, Box<dyn Parser<B>>);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AppendParser` is never constructed
[INFO] [stdout]    --> src/json_parser.rs:140:8
[INFO] [stdout]     |
[INFO] [stdout] 140 | struct AppendParser<A>(Box<dyn Parser<A>>, Box<dyn Parser<Vec<A>>>);
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `space_1` is never used
[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 `lower` is never used
[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 `upper` is never used
[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 `alpha` is never used
[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 `comma_tok` is never used
[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 `quote` is never used
[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 `option` is never used
[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 `digits1` is never used
[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 `one_of` is never used
[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 `none_of` is never used
[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 `hexu` is never used
[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: struct `Eof` is never constructed
[INFO] [stdout]    --> src/json_parser.rs:330:8
[INFO] [stdout]     |
[INFO] [stdout] 330 | struct Eof;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/json_parser.rs:495:15
[INFO] [stdout]     |
[INFO] [stdout] 495 |     JsonArray(Vec<Json>),
[INFO] [stdout]     |     --------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Json` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 495 |     JsonArray(()),
[INFO] [stdout]     |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/json_parser.rs:496:16
[INFO] [stdout]     |
[INFO] [stdout] 496 |     JsonString(String),
[INFO] [stdout]     |     ---------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Json` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 496 |     JsonString(()),
[INFO] [stdout]     |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/json_parser.rs:497:16
[INFO] [stdout]     |
[INFO] [stdout] 497 |     JsonObject(Vec<(String, Json)>),
[INFO] [stdout]     |     ---------- ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Json` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 497 |     JsonObject(()),
[INFO] [stdout]     |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/json_parser.rs:498:16
[INFO] [stdout]     |
[INFO] [stdout] 498 |     JsonNumber(f64)
[INFO] [stdout]     |     ---------- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Json` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 498 |     JsonNumber(())
[INFO] [stdout]     |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[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: field `0` is never read
[INFO] [stdout]  --> src/json_parser.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 |     UnexpectedChar(char),
[INFO] [stdout]   |     -------------- ^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 |     UnexpectedChar(()),
[INFO] [stdout]   |                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/json_parser.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 |     UnexpectedString(MyStr),
[INFO] [stdout]    |     ---------------- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     UnexpectedString(()),
[INFO] [stdout]    |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ExpectedEof` is never constructed
[INFO] [stdout]  --> src/json_parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum ParseError {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 7 |     UnexpectedEof,
[INFO] [stdout] 8 |     ExpectedEof(Input),
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnexpectedCharParser` is never constructed
[INFO] [stdout]   --> src/json_parser.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct UnexpectedCharParser(char);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConstantParser` is never constructed
[INFO] [stdout]   --> src/json_parser.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct ConstantParser<A>(ParseResult<A>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DropAParser` is never constructed
[INFO] [stdout]   --> src/json_parser.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct DropAParser<A, B>(Box<dyn Parser<A>>, Box<dyn Parser<B>>);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AppendParser` is never constructed
[INFO] [stdout]    --> src/json_parser.rs:140:8
[INFO] [stdout]     |
[INFO] [stdout] 140 | struct AppendParser<A>(Box<dyn Parser<A>>, Box<dyn Parser<Vec<A>>>);
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `space_1` is never used
[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 `lower` is never used
[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 `upper` is never used
[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 `alpha` is never used
[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 `comma_tok` is never used
[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 `quote` is never used
[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 `option` is never used
[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 `digits1` is never used
[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 `one_of` is never used
[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 `none_of` is never used
[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 `hexu` is never used
[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: struct `Eof` is never constructed
[INFO] [stdout]    --> src/json_parser.rs:330:8
[INFO] [stdout]     |
[INFO] [stdout] 330 | struct Eof;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/json_parser.rs:495:15
[INFO] [stdout]     |
[INFO] [stdout] 495 |     JsonArray(Vec<Json>),
[INFO] [stdout]     |     --------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Json` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 495 |     JsonArray(()),
[INFO] [stdout]     |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/json_parser.rs:496:16
[INFO] [stdout]     |
[INFO] [stdout] 496 |     JsonString(String),
[INFO] [stdout]     |     ---------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Json` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 496 |     JsonString(()),
[INFO] [stdout]     |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/json_parser.rs:497:16
[INFO] [stdout]     |
[INFO] [stdout] 497 |     JsonObject(Vec<(String, Json)>),
[INFO] [stdout]     |     ---------- ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Json` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 497 |     JsonObject(()),
[INFO] [stdout]     |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/json_parser.rs:498:16
[INFO] [stdout]     |
[INFO] [stdout] 498 |     JsonNumber(f64)
[INFO] [stdout]     |     ---------- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Json` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 498 |     JsonNumber(())
[INFO] [stdout]     |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[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: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "f21dda5c533b1ba97ca131c0d138d30af84666f3669a13be12a6fadf011906fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f21dda5c533b1ba97ca131c0d138d30af84666f3669a13be12a6fadf011906fc", kill_on_drop: false }`
[INFO] [stdout] f21dda5c533b1ba97ca131c0d138d30af84666f3669a13be12a6fadf011906fc