[INFO] cloning repository https://github.com/bugaevc/jvm-bindgen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bugaevc/jvm-bindgen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbugaevc%2Fjvm-bindgen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbugaevc%2Fjvm-bindgen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81e0f0f46c85de25e7e7217f05d747eddb54617e
[INFO] testing bugaevc/jvm-bindgen against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbugaevc%2Fjvm-bindgen" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bugaevc/jvm-bindgen
[INFO] finished tweaking git repo https://github.com/bugaevc/jvm-bindgen
[INFO] tweaked toml for git repo https://github.com/bugaevc/jvm-bindgen written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bugaevc/jvm-bindgen on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bugaevc/jvm-bindgen 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" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 073b206dddf60ad8d6cc00fddf4e78e5e4b4c5a6e8a45ad0f790ba3851ac51e9
[INFO] running `Command { std: "docker" "start" "-a" "073b206dddf60ad8d6cc00fddf4e78e5e4b4c5a6e8a45ad0f790ba3851ac51e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "073b206dddf60ad8d6cc00fddf4e78e5e4b4c5a6e8a45ad0f790ba3851ac51e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "073b206dddf60ad8d6cc00fddf4e78e5e4b4c5a6e8a45ad0f790ba3851ac51e9", kill_on_drop: false }`
[INFO] [stdout] 073b206dddf60ad8d6cc00fddf4e78e5e4b4c5a6e8a45ad0f790ba3851ac51e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b3934b0f5db8ad0f6740d71f7b323a7acf2023b38baf1a449806aa7d353642c
[INFO] running `Command { std: "docker" "start" "-a" "4b3934b0f5db8ad0f6740d71f7b323a7acf2023b38baf1a449806aa7d353642c", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling nom v4.0.0
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]    Compiling classfile-parser v0.3.2
[INFO] [stderr]    Compiling jvm-bindgen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Cow`
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::borrow::Cow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_upper`
[INFO] [stdout]   --> src/lib.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 |     for (is_upper, chars) in &java_name.chars().group_by(|c| c.is_uppercase()) {
[INFO] [stdout]    |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_upper`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ClassFileExt` is never used
[INFO] [stdout]   --> src/lib.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | trait ClassFileExt {
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_class_name` is never used
[INFO] [stdout]   --> src/lib.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn get_class_name<'a>(class: &'a ClassConstant, class_file: &'a ClassFile) -> &'a str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RustFmt` is never constructed
[INFO] [stdout]   --> src/lib.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct RustFmt(Child);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `launch`, `stdin`, and `stdout` are never used
[INFO] [stdout]   --> src/lib.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl RustFmt {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 41 |     fn launch() -> io::Result<RustFmt> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn stdin(&mut self) -> &mut ChildStdin { self.0.stdin.as_mut().unwrap() }
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 50 |     fn stdout(&mut self) -> &mut ChildStdout { self.0.stdout.as_mut().unwrap() }
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transform_name` is never used
[INFO] [stdout]   --> src/lib.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn transform_name(java_name: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_method` is never used
[INFO] [stdout]   --> src/lib.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn gen_method(class_file: &ClassFile, method: &method_info::MethodInfo) -> TokenStream {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bindgen` is never used
[INFO] [stdout]   --> src/lib.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn bindgen(class_name: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     write!(rustfmt.stdin(), "{}", gen);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let _ = write!(rustfmt.stdin(), "{}", gen);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.54s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.0.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "4b3934b0f5db8ad0f6740d71f7b323a7acf2023b38baf1a449806aa7d353642c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b3934b0f5db8ad0f6740d71f7b323a7acf2023b38baf1a449806aa7d353642c", kill_on_drop: false }`
[INFO] [stdout] 4b3934b0f5db8ad0f6740d71f7b323a7acf2023b38baf1a449806aa7d353642c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bdfedd0c46b656c2a87ac5ce364da8e0cd4a87c329903fca8d6c3072988f303
[INFO] running `Command { std: "docker" "start" "-a" "3bdfedd0c46b656c2a87ac5ce364da8e0cd4a87c329903fca8d6c3072988f303", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Cow`
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::borrow::Cow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_upper`
[INFO] [stdout]   --> src/lib.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 |     for (is_upper, chars) in &java_name.chars().group_by(|c| c.is_uppercase()) {
[INFO] [stdout]    |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_upper`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ClassFileExt` is never used
[INFO] [stdout]   --> src/lib.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | trait ClassFileExt {
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_class_name` is never used
[INFO] [stdout]   --> src/lib.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn get_class_name<'a>(class: &'a ClassConstant, class_file: &'a ClassFile) -> &'a str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RustFmt` is never constructed
[INFO] [stdout]   --> src/lib.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct RustFmt(Child);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `launch`, `stdin`, and `stdout` are never used
[INFO] [stdout]   --> src/lib.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl RustFmt {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 41 |     fn launch() -> io::Result<RustFmt> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn stdin(&mut self) -> &mut ChildStdin { self.0.stdin.as_mut().unwrap() }
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 50 |     fn stdout(&mut self) -> &mut ChildStdout { self.0.stdout.as_mut().unwrap() }
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transform_name` is never used
[INFO] [stdout]   --> src/lib.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn transform_name(java_name: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_method` is never used
[INFO] [stdout]   --> src/lib.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn gen_method(class_file: &ClassFile, method: &method_info::MethodInfo) -> TokenStream {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bindgen` is never used
[INFO] [stdout]   --> src/lib.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn bindgen(class_name: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     write!(rustfmt.stdin(), "{}", gen);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let _ = write!(rustfmt.stdin(), "{}", gen);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling jvm-bindgen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Cow`
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::borrow::Cow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_upper`
[INFO] [stdout]   --> src/lib.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 |     for (is_upper, chars) in &java_name.chars().group_by(|c| c.is_uppercase()) {
[INFO] [stdout]    |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_upper`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `stdout` is never used
[INFO] [stdout]   --> src/lib.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl RustFmt {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |     fn stdout(&mut self) -> &mut ChildStdout { self.0.stdout.as_mut().unwrap() }
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     write!(rustfmt.stdin(), "{}", gen);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let _ = write!(rustfmt.stdin(), "{}", gen);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.0.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "3bdfedd0c46b656c2a87ac5ce364da8e0cd4a87c329903fca8d6c3072988f303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bdfedd0c46b656c2a87ac5ce364da8e0cd4a87c329903fca8d6c3072988f303", kill_on_drop: false }`
[INFO] [stdout] 3bdfedd0c46b656c2a87ac5ce364da8e0cd4a87c329903fca8d6c3072988f303
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 29f62cc8da96f5ba9e6f0ecf7ac7322447b2bc22424703d486638b64972552b3
[INFO] running `Command { std: "docker" "start" "-a" "29f62cc8da96f5ba9e6f0ecf7ac7322447b2bc22424703d486638b64972552b3", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/lib.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::{Read, Write};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Cow`
[INFO] [stderr]   --> src/lib.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use std::borrow::Cow;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `is_upper`
[INFO] [stderr]   --> src/lib.rs:59:10
[INFO] [stderr]    |
[INFO] [stderr] 59 |     for (is_upper, chars) in &java_name.chars().group_by(|c| c.is_uppercase()) {
[INFO] [stderr]    |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_upper`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `ClassFileExt` is never used
[INFO] [stderr]   --> src/lib.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 | trait ClassFileExt {
[INFO] [stderr]    |       ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_class_name` is never used
[INFO] [stderr]   --> src/lib.rs:34:4
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn get_class_name<'a>(class: &'a ClassConstant, class_file: &'a ClassFile) -> &'a str {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `RustFmt` is never constructed
[INFO] [stderr]   --> src/lib.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | struct RustFmt(Child);
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `launch`, `stdin`, and `stdout` are never used
[INFO] [stderr]   --> src/lib.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 40 | impl RustFmt {
[INFO] [stderr]    | ------------ associated items in this implementation
[INFO] [stderr] 41 |     fn launch() -> io::Result<RustFmt> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |     fn stdin(&mut self) -> &mut ChildStdin { self.0.stdin.as_mut().unwrap() }
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 50 |     fn stdout(&mut self) -> &mut ChildStdout { self.0.stdout.as_mut().unwrap() }
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `transform_name` is never used
[INFO] [stderr]   --> src/lib.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn transform_name(java_name: &str) -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `gen_method` is never used
[INFO] [stderr]   --> src/lib.rs:85:4
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn gen_method(class_file: &ClassFile, method: &method_info::MethodInfo) -> TokenStream {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `bindgen` is never used
[INFO] [stderr]   --> src/lib.rs:95:4
[INFO] [stderr]    |
[INFO] [stderr] 95 | fn bindgen(class_name: &str) {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:121:5
[INFO] [stderr]     |
[INFO] [stderr] 121 |     write!(rustfmt.stdin(), "{}", gen);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 121 |     let _ = write!(rustfmt.stdin(), "{}", gen);
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `jvm-bindgen` (lib) generated 11 warnings (run `cargo fix --lib -p jvm-bindgen` to apply 3 suggestions)
[INFO] [stderr] warning: method `stdout` is never used
[INFO] [stderr]   --> src/lib.rs:50:8
[INFO] [stderr]    |
[INFO] [stderr] 40 | impl RustFmt {
[INFO] [stderr]    | ------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 50 |     fn stdout(&mut self) -> &mut ChildStdout { self.0.stdout.as_mut().unwrap() }
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `jvm-bindgen` (lib test) generated 5 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.0.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/jvm_bindgen-e0da6260ec0dbd4d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::it_works ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test::it_works stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test::it_works' (26) panicked at src/lib.rs:97:10:
[INFO] [stdout] Failed to parse the class: "Unable to open /tmp/HelloWorld.class: description() is deprecated; use Display"
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6378fd6fbe22 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6378fd6fbe22 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6378fd6fbe22 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x6378fd6fbe22 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x6378fd70c04a - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x6378fd70c04a - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x6378fd6caba6 - std::io::default_write_fmt::hd23bd8145c03a23a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6378fd6caba6 - std::io::Write::write_fmt::hdd3314a2bd8a34bd
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x6378fd6db209 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x6378fd6db209 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x6378fd6db0a1 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x6378fd6794ee - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb2e68dca3970e3ca
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x6378fd6794ee - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x6378fd6db482 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haebee478d0f56cf4
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x6378fd6db482 - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x6378fd6db2c8 - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x6378fd6d6799 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x6378fd6bf79d - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x6378fd7135fc - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x6378fd712cb2 - core::result::unwrap_failed::h7d4c34940aded59c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x6378fd6591a5 - core::result::Result<T,E>::expect::hda81561e4444798d
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1185:23
[INFO] [stdout]   21:     0x6378fd651ac0 - jvm_bindgen::bindgen::h09c8c2cedca812c2
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:97:10
[INFO] [stdout]   22:     0x6378fd6517c2 - jvm_bindgen::test::it_works::hd0f44b2cbd841a79
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:129:9
[INFO] [stdout]   23:     0x6378fd6517e7 - jvm_bindgen::test::it_works::{{closure}}::h81943d4c15f40f38
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:128:18
[INFO] [stdout]   24:     0x6378fd6574d6 - core::ops::function::FnOnce::call_once::h6a34492b8e460ec7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x6378fd6792eb - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x6378fd6792eb - test::__rust_begin_short_backtrace::he30322a73a0e9ea6
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18
[INFO] [stdout]   27:     0x6378fd68ccba - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74
[INFO] [stdout]   28:     0x6378fd68ccba - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h66d192f42498ffce
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   29:     0x6378fd68ccba - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x6378fd68ccba - std::panicking::catch_unwind::h54b1de7ceab578bf
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x6378fd68ccba - std::panic::catch_unwind::h60c29b7a9d0246b1
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x6378fd68ccba - test::run_test_in_process::h6099b5f871379b13
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27
[INFO] [stdout]   33:     0x6378fd68ccba - test::run_test::{{closure}}::h926ce0a38281a4c8
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43
[INFO] [stdout]   34:     0x6378fd667114 - test::run_test::{{closure}}::h508de21a9afc7140
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41
[INFO] [stdout]   35:     0x6378fd667114 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   36:     0x6378fd66a9d2 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   37:     0x6378fd66a9d2 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4718c1285283955c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   38:     0x6378fd66a9d2 - std::panicking::catch_unwind::do_call::h0bba3937b4892238
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   39:     0x6378fd66a9d2 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   40:     0x6378fd66a9d2 - std::panic::catch_unwind::hb2fa05d52ed0124e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x6378fd66a9d2 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   42:     0x6378fd66a9d2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x6378fd6d19ef - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf234e0d1d1d272ba
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   44:     0x6378fd6d19ef - std::sys::thread::unix::Thread::new::thread_start::h106a295241840d3b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   45:     0x7f0722657aa4 - <unknown>
[INFO] [stdout]   46:     0x7f07226e4a64 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test::it_works
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "29f62cc8da96f5ba9e6f0ecf7ac7322447b2bc22424703d486638b64972552b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29f62cc8da96f5ba9e6f0ecf7ac7322447b2bc22424703d486638b64972552b3", kill_on_drop: false }`
[INFO] [stdout] 29f62cc8da96f5ba9e6f0ecf7ac7322447b2bc22424703d486638b64972552b3
