Dec 19 19:26:15.211 INFO checking bugaevc/jvm-bindgen against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:26:15.211 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/bugaevc/jvm-bindgen:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:26:15.687 INFO [stdout] d9dd054e6833852bac92b83d1feb02d7c52fee80308db678657293f5d264eafe
Dec 19 19:26:15.689 INFO running `"docker" "start" "-a" "d9dd054e6833852bac92b83d1feb02d7c52fee80308db678657293f5d264eafe"`
Dec 19 19:26:17.192 INFO [stderr]     Checking memchr v2.0.1
Dec 19 19:26:17.192 INFO [stderr]     Checking proc-macro2 v0.4.13
Dec 19 19:26:17.712 INFO [stderr]     Checking nom v4.0.0
Dec 19 19:26:18.449 INFO [stderr]     Checking quote v0.6.6
Dec 19 19:26:20.134 INFO [stderr]     Checking classfile-parser v0.3.2
Dec 19 19:26:21.214 INFO [stderr]     Checking jvm-bindgen v0.1.0 (/opt/crater/workdir)
Dec 19 19:26:21.682 INFO [stderr] warning: unused import: `Read`
Dec 19 19:26:21.683 INFO [stderr]  --> src/lib.rs:9:15
Dec 19 19:26:21.683 INFO [stderr]   |
Dec 19 19:26:21.683 INFO [stderr] 9 | use std::io::{Read, Write};
Dec 19 19:26:21.683 INFO [stderr]   |               ^^^^
Dec 19 19:26:21.684 INFO [stderr]   |
Dec 19 19:26:21.684 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 19:26:21.684 INFO [stderr] 
Dec 19 19:26:21.685 INFO [stderr] warning: unused import: `std::borrow::Cow`
Dec 19 19:26:21.685 INFO [stderr]   --> src/lib.rs:18:5
Dec 19 19:26:21.685 INFO [stderr]    |
Dec 19 19:26:21.685 INFO [stderr] 18 | use std::borrow::Cow;
Dec 19 19:26:21.686 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 19:26:21.686 INFO [stderr] 
Dec 19 19:26:21.752 INFO [stderr] warning: unused import: `Read`
Dec 19 19:26:21.753 INFO [stderr]  --> src/lib.rs:9:15
Dec 19 19:26:21.753 INFO [stderr]   |
Dec 19 19:26:21.753 INFO [stderr] 9 | use std::io::{Read, Write};
Dec 19 19:26:21.753 INFO [stderr]   |               ^^^^
Dec 19 19:26:21.754 INFO [stderr]   |
Dec 19 19:26:21.754 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 19:26:21.754 INFO [stderr] 
Dec 19 19:26:21.754 INFO [stderr] warning: unused import: `std::borrow::Cow`
Dec 19 19:26:21.755 INFO [stderr]   --> src/lib.rs:18:5
Dec 19 19:26:21.755 INFO [stderr]    |
Dec 19 19:26:21.755 INFO [stderr] 18 | use std::borrow::Cow;
Dec 19 19:26:21.755 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 19:26:21.755 INFO [stderr] 
Dec 19 19:26:21.789 INFO [stderr] warning: unused variable: `is_upper`
Dec 19 19:26:21.789 INFO [stderr]   --> src/lib.rs:59:10
Dec 19 19:26:21.789 INFO [stderr]    |
Dec 19 19:26:21.789 INFO [stderr] 59 |     for (is_upper, chars) in &java_name.chars().group_by(|c| c.is_uppercase()) {
Dec 19 19:26:21.790 INFO [stderr]    |          ^^^^^^^^ help: consider using `_is_upper` instead
Dec 19 19:26:21.790 INFO [stderr]    |
Dec 19 19:26:21.790 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 19:26:21.790 INFO [stderr] 
Dec 19 19:26:21.825 INFO [stderr] warning: method is never used: `stdout`
Dec 19 19:26:21.825 INFO [stderr]   --> src/lib.rs:50:5
Dec 19 19:26:21.825 INFO [stderr]    |
Dec 19 19:26:21.826 INFO [stderr] 50 |     fn stdout(&mut self) -> &mut ChildStdout { self.0.stdout.as_mut().unwrap() }
Dec 19 19:26:21.826 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:21.826 INFO [stderr]    |
Dec 19 19:26:21.827 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 19:26:21.827 INFO [stderr] 
Dec 19 19:26:21.828 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:26:21.828 INFO [stderr]    --> src/lib.rs:121:5
Dec 19 19:26:21.828 INFO [stderr]     |
Dec 19 19:26:21.829 INFO [stderr] 121 |     write!(rustfmt.stdin(), "{}", gen);
Dec 19 19:26:21.829 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:21.829 INFO [stderr]     |
Dec 19 19:26:21.829 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 19:26:21.830 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:26:21.830 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 19:26:21.830 INFO [stderr] 
Dec 19 19:26:21.884 INFO [stderr] warning: unused variable: `is_upper`
Dec 19 19:26:21.885 INFO [stderr]   --> src/lib.rs:59:10
Dec 19 19:26:21.885 INFO [stderr]    |
Dec 19 19:26:21.885 INFO [stderr] 59 |     for (is_upper, chars) in &java_name.chars().group_by(|c| c.is_uppercase()) {
Dec 19 19:26:21.885 INFO [stderr]    |          ^^^^^^^^ help: consider using `_is_upper` instead
Dec 19 19:26:21.886 INFO [stderr]    |
Dec 19 19:26:21.886 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 19:26:21.886 INFO [stderr] 
Dec 19 19:26:21.944 INFO [stderr] warning: function is never used: `get_class_name`
Dec 19 19:26:21.944 INFO [stderr]   --> src/lib.rs:34:1
Dec 19 19:26:21.945 INFO [stderr]    |
Dec 19 19:26:21.945 INFO [stderr] 34 | fn get_class_name<'a>(class: &'a ClassConstant, class_file: &'a ClassFile) -> &'a str {
Dec 19 19:26:21.945 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:21.946 INFO [stderr]    |
Dec 19 19:26:21.946 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 19:26:21.946 INFO [stderr] 
Dec 19 19:26:21.946 INFO [stderr] warning: struct is never constructed: `RustFmt`
Dec 19 19:26:21.946 INFO [stderr]   --> src/lib.rs:38:1
Dec 19 19:26:21.946 INFO [stderr]    |
Dec 19 19:26:21.947 INFO [stderr] 38 | struct RustFmt(Child);
Dec 19 19:26:21.947 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:21.947 INFO [stderr] 
Dec 19 19:26:21.947 INFO [stderr] warning: method is never used: `launch`
Dec 19 19:26:21.947 INFO [stderr]   --> src/lib.rs:41:5
Dec 19 19:26:21.948 INFO [stderr]    |
Dec 19 19:26:21.948 INFO [stderr] 41 |     fn launch() -> io::Result<RustFmt> {
Dec 19 19:26:21.948 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:21.948 INFO [stderr] 
Dec 19 19:26:21.949 INFO [stderr] warning: method is never used: `stdin`
Dec 19 19:26:21.949 INFO [stderr]   --> src/lib.rs:49:5
Dec 19 19:26:21.949 INFO [stderr]    |
Dec 19 19:26:21.950 INFO [stderr] 49 |     fn stdin(&mut self) -> &mut ChildStdin { self.0.stdin.as_mut().unwrap() }
Dec 19 19:26:21.950 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:21.950 INFO [stderr] 
Dec 19 19:26:21.950 INFO [stderr] warning: method is never used: `stdout`
Dec 19 19:26:21.951 INFO [stderr]   --> src/lib.rs:50:5
Dec 19 19:26:21.951 INFO [stderr]    |
Dec 19 19:26:21.951 INFO [stderr] 50 |     fn stdout(&mut self) -> &mut ChildStdout { self.0.stdout.as_mut().unwrap() }
Dec 19 19:26:21.951 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:21.951 INFO [stderr] 
Dec 19 19:26:21.951 INFO [stderr] warning: function is never used: `transform_name`
Dec 19 19:26:21.951 INFO [stderr]   --> src/lib.rs:53:1
Dec 19 19:26:21.951 INFO [stderr]    |
Dec 19 19:26:21.951 INFO [stderr] 53 | fn transform_name(java_name: &str) -> String {
Dec 19 19:26:21.952 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:21.952 INFO [stderr] 
Dec 19 19:26:21.952 INFO [stderr] warning: function is never used: `gen_method`
Dec 19 19:26:21.952 INFO [stderr]   --> src/lib.rs:85:1
Dec 19 19:26:21.952 INFO [stderr]    |
Dec 19 19:26:21.952 INFO [stderr] 85 | fn gen_method(class_file: &ClassFile, method: &method_info::MethodInfo) -> TokenStream {
Dec 19 19:26:21.952 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:21.952 INFO [stderr] 
Dec 19 19:26:21.952 INFO [stderr] warning: function is never used: `bindgen`
Dec 19 19:26:21.952 INFO [stderr]   --> src/lib.rs:95:1
Dec 19 19:26:21.952 INFO [stderr]    |
Dec 19 19:26:21.952 INFO [stderr] 95 | fn bindgen(class_name: &str) {
Dec 19 19:26:21.952 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:21.952 INFO [stderr] 
Dec 19 19:26:21.952 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:26:21.952 INFO [stderr]    --> src/lib.rs:121:5
Dec 19 19:26:21.952 INFO [stderr]     |
Dec 19 19:26:21.952 INFO [stderr] 121 |     write!(rustfmt.stdin(), "{}", gen);
Dec 19 19:26:21.952 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:21.952 INFO [stderr]     |
Dec 19 19:26:21.952 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 19:26:21.952 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:26:21.952 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 19:26:21.952 INFO [stderr] 
Dec 19 19:26:22.001 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.86s
Dec 19 19:26:23.472 INFO running `"docker" "inspect" "d9dd054e6833852bac92b83d1feb02d7c52fee80308db678657293f5d264eafe"`
Dec 19 19:26:23.778 INFO running `"docker" "rm" "-f" "d9dd054e6833852bac92b83d1feb02d7c52fee80308db678657293f5d264eafe"`
Dec 19 19:26:24.132 INFO [stdout] d9dd054e6833852bac92b83d1feb02d7c52fee80308db678657293f5d264eafe