[INFO] cloning repository https://github.com/mateiidavid/xml-parser-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mateiidavid/xml-parser-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmateiidavid%2Fxml-parser-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmateiidavid%2Fxml-parser-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7173285c8429106ce2f77fe8d9460c729854b4a2
[INFO] checking mateiidavid/xml-parser-example against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmateiidavid%2Fxml-parser-example" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mateiidavid/xml-parser-example 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/mateiidavid/xml-parser-example
[INFO] finished tweaking git repo https://github.com/mateiidavid/xml-parser-example
[INFO] tweaked toml for git repo https://github.com/mateiidavid/xml-parser-example written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mateiidavid/xml-parser-example 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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] fa2307d65a1e9e15f47b5f8990983704044a4c911c066c715c232e238d53b013
[INFO] running `Command { std: "docker" "start" "-a" "fa2307d65a1e9e15f47b5f8990983704044a4c911c066c715c232e238d53b013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa2307d65a1e9e15f47b5f8990983704044a4c911c066c715c232e238d53b013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa2307d65a1e9e15f47b5f8990983704044a4c911c066c715c232e238d53b013", kill_on_drop: false }`
[INFO] [stdout] fa2307d65a1e9e15f47b5f8990983704044a4c911c066c715c232e238d53b013
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 91ad831ca324273949b70dcd25462692900a94f0c207f0b6db9c833d57401469
[INFO] running `Command { std: "docker" "start" "-a" "91ad831ca324273949b70dcd25462692900a94f0c207f0b6db9c833d57401469", kill_on_drop: false }`
[INFO] [stderr]     Checking xml-parser-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ParseResult` is never used
[INFO] [stdout]   --> src/lib.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | type ParseResult<'a, Output> = Result<(&'a str, Output), &'a str>;
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Parser` is never used
[INFO] [stdout]   --> src/lib.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | trait Parser<'a, Output> {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BoxedParser` is never constructed
[INFO] [stdout]   --> src/lib.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct BoxedParser<'a, Output> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl<'a, Output> BoxedParser<'a, Output> {
[INFO] [stdout]    | ---------------------------------------- associated function in this implementation
[INFO] [stdout] 72 |     fn new<P>(parser: P) -> Self
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ParseFn` is never used
[INFO] [stdout]   --> src/lib.rs:98:6
[INFO] [stdout]    |
[INFO] [stdout] 98 | type ParseFn = fn(&str) -> Result<(&str, ()), &str>;
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_literal` is never used
[INFO] [stdout]    --> src/lib.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn match_literal<'a>(expected: &'static str) -> impl Parser<'a, ()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `identifier` is never used
[INFO] [stdout]    --> src/lib.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn identifier(input: &str) -> ParseResult<String> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pair` is never used
[INFO] [stdout]    --> src/lib.rs:162:4
[INFO] [stdout]     |
[INFO] [stdout] 162 | fn pair<'a, F1, F2, R1, R2>(parser1: F1, parser2: F2) -> impl Parser<'a, (R1, R2)>
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `map` is never used
[INFO] [stdout]    --> src/lib.rs:176:4
[INFO] [stdout]     |
[INFO] [stdout] 176 | 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 `left` is never used
[INFO] [stdout]    --> src/lib.rs:188:4
[INFO] [stdout]     |
[INFO] [stdout] 188 | 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:196:4
[INFO] [stdout]     |
[INFO] [stdout] 196 | 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:205:4
[INFO] [stdout]     |
[INFO] [stdout] 205 | 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:231:4
[INFO] [stdout]     |
[INFO] [stdout] 231 | 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:247:4
[INFO] [stdout]     |
[INFO] [stdout] 247 | 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:254:4
[INFO] [stdout]     |
[INFO] [stdout] 254 | fn pred<'a, P, F, A>(parser: P, pred_fn: F) -> impl Parser<'a, A>
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `whitespace_char` is never used
[INFO] [stdout]    --> src/lib.rs:269:4
[INFO] [stdout]     |
[INFO] [stdout] 269 | fn whitespace_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:273:4
[INFO] [stdout]     |
[INFO] [stdout] 273 | fn space1<'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:277:4
[INFO] [stdout]     |
[INFO] [stdout] 277 | 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:288:4
[INFO] [stdout]     |
[INFO] [stdout] 288 | 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:292:4
[INFO] [stdout]     |
[INFO] [stdout] 292 | 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:298:4
[INFO] [stdout]     |
[INFO] [stdout] 298 | 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:308:4
[INFO] [stdout]     |
[INFO] [stdout] 308 | fn single_element<'a>() -> impl Parser<'a, Element> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `open_element` is never used
[INFO] [stdout]    --> src/lib.rs:316:4
[INFO] [stdout]     |
[INFO] [stdout] 316 | 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:327:4
[INFO] [stdout]     |
[INFO] [stdout] 327 | 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:339:4
[INFO] [stdout]     |
[INFO] [stdout] 339 | 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:345:4
[INFO] [stdout]     |
[INFO] [stdout] 345 | 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:351:4
[INFO] [stdout]     |
[INFO] [stdout] 351 | 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:365:4
[INFO] [stdout]     |
[INFO] [stdout] 365 | 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: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/lib.rs:390:9
[INFO] [stdout]     |
[INFO] [stdout] 390 |     let input = "Dear all, welcome to this fine evening. I am here to tell you that you need to do something...for further directions, re...
[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: method `and_then` is never used
[INFO] [stdout]   --> src/lib.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | trait Parser<'a, Output> {
[INFO] [stdout]    |       ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn and_then<B, F, P>(self, f: F) -> BoxedParser<'a, B>
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ParseFn` is never used
[INFO] [stdout]   --> src/lib.rs:98:6
[INFO] [stdout]    |
[INFO] [stdout] 98 | type ParseFn = fn(&str) -> Result<(&str, ()), &str>;
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `open_element` is never used
[INFO] [stdout]    --> src/lib.rs:316:4
[INFO] [stdout]     |
[INFO] [stdout] 316 | 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:327:4
[INFO] [stdout]     |
[INFO] [stdout] 327 | 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:339:4
[INFO] [stdout]     |
[INFO] [stdout] 339 | 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:345:4
[INFO] [stdout]     |
[INFO] [stdout] 345 | 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:351:4
[INFO] [stdout]     |
[INFO] [stdout] 351 | 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:365:4
[INFO] [stdout]     |
[INFO] [stdout] 365 | 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: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "91ad831ca324273949b70dcd25462692900a94f0c207f0b6db9c833d57401469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91ad831ca324273949b70dcd25462692900a94f0c207f0b6db9c833d57401469", kill_on_drop: false }`
[INFO] [stdout] 91ad831ca324273949b70dcd25462692900a94f0c207f0b6db9c833d57401469