[INFO] cloning repository https://github.com/fraserwat/jsontoxmlconverter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fraserwat/jsontoxmlconverter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffraserwat%2Fjsontoxmlconverter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffraserwat%2Fjsontoxmlconverter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dc264d7c59a49c9863ed10c75e9f1d15fc66f185
[INFO] checking fraserwat/jsontoxmlconverter against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffraserwat%2Fjsontoxmlconverter" "/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/fraserwat/jsontoxmlconverter 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/fraserwat/jsontoxmlconverter
[INFO] finished tweaking git repo https://github.com/fraserwat/jsontoxmlconverter
[INFO] tweaked toml for git repo https://github.com/fraserwat/jsontoxmlconverter written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fraserwat/jsontoxmlconverter 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xml v0.8.20
[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] dc62bdc960d3a95995f2138f349501071f744ee5ce61dd6f77301356210866f2
[INFO] running `Command { std: "docker" "start" "-a" "dc62bdc960d3a95995f2138f349501071f744ee5ce61dd6f77301356210866f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc62bdc960d3a95995f2138f349501071f744ee5ce61dd6f77301356210866f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc62bdc960d3a95995f2138f349501071f744ee5ce61dd6f77301356210866f2", kill_on_drop: false }`
[INFO] [stdout] dc62bdc960d3a95995f2138f349501071f744ee5ce61dd6f77301356210866f2
[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] b512ad4b1567b2a2874b0c2803839d815ce54109fb571a883ad609f6fa11b8fa
[INFO] running `Command { std: "docker" "start" "-a" "b512ad4b1567b2a2874b0c2803839d815ce54109fb571a883ad609f6fa11b8fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.201
[INFO] [stderr]    Compiling thiserror v1.0.60
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]     Checking xml-rs v0.8.20
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking xml v0.8.20
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.61
[INFO] [stderr]    Compiling serde_derive v1.0.201
[INFO] [stderr]    Compiling thiserror-impl v1.0.60
[INFO] [stderr]     Checking jsonxmlconverter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `read as JsonRead` and `transform as JsonTransform`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use json::{read as JsonRead, transform as JsonTransform};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `read as XmlRead` and `transform as XmlTransform`
[INFO] [stdout]  --> src/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use xml::{read as XmlRead, transform as XmlTransform};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `read as JsonRead` and `transform as JsonTransform`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use json::{read as JsonRead, transform as JsonTransform};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `read as XmlRead` and `transform as XmlTransform`
[INFO] [stdout]  --> src/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use xml::{read as XmlRead, transform as XmlTransform};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_path`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let file_path = construct_file_path("src/data/test_simple.xml");
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_json` is never used
[INFO] [stdout]   --> src/json/read.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn load_json(file_path: &str) -> Result<Value, JsonLoadError> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `XmlCursor` is never used
[INFO] [stdout]  --> src/json/transform.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type XmlCursor = EventWriter<Cursor<Vec<u8>>>;
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ResultGeneric` is never used
[INFO] [stdout]  --> src/json/transform.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type ResultGeneric<T> = Result<T, Box<dyn Error>>;
[INFO] [stdout]   |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_json_to_xml` is never used
[INFO] [stdout]   --> src/json/transform.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn convert_json_to_xml(json: Value, root_name: &str) -> ResultGeneric<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `json_to_xml` is never used
[INFO] [stdout]   --> src/json/transform.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn json_to_xml(json: &Value, writer: &mut XmlCursor) -> ResultGeneric<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `xml_standard_type_handling` is never used
[INFO] [stdout]   --> src/json/transform.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn xml_standard_type_handling(json: &Value, writer: &mut XmlCursor) -> ResultGeneric<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `xml_array_handling` is never used
[INFO] [stdout]   --> src/json/transform.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn xml_array_handling(arr: &[Value], writer: &mut XmlCursor) -> ResultGeneric<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_json_object` is never used
[INFO] [stdout]   --> src/json/transform.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn handle_json_object(map: &Map<String, Value>, writer: &mut XmlCursor) -> ResultGeneric<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Reader` is never used
[INFO] [stdout]  --> src/xml/read.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Reader = EventReader<BufReader<File>>;
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ResultGnr` is never used
[INFO] [stdout]  --> src/xml/read.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type ResultGnr<T> = Result<T, Box<dyn Error>>;
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `XmlAttribute` is never used
[INFO] [stdout]  --> src/xml/read.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type XmlAttribute = [xml::attribute::OwnedAttribute];
[INFO] [stdout]   |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_xml` is never used
[INFO] [stdout]   --> src/xml/read.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn load_xml(file_path: &str) -> ResultGnr<Reader> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_xml_parse` is never used
[INFO] [stdout]   --> src/xml/read.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn check_xml_parse(parser: Reader) -> ResultGnr<String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `xml_start_tag` is never used
[INFO] [stdout]   --> src/xml/read.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn xml_start_tag(output: &mut String, tag_name: &str, attributes: &XmlAttribute) -> ResultGnr<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `xml_end_tag` is never used
[INFO] [stdout]   --> src/xml/read.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn xml_end_tag(output: &mut String, tag_name: &str) -> ResultGnr<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_path`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let file_path = construct_file_path("src/data/test_simple.xml");
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.85s
[INFO] running `Command { std: "docker" "inspect" "b512ad4b1567b2a2874b0c2803839d815ce54109fb571a883ad609f6fa11b8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b512ad4b1567b2a2874b0c2803839d815ce54109fb571a883ad609f6fa11b8fa", kill_on_drop: false }`
[INFO] [stdout] b512ad4b1567b2a2874b0c2803839d815ce54109fb571a883ad609f6fa11b8fa