Dec 04 21:24:36.808 INFO checking bugaevc/jvm-bindgen against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 21:24:36.809 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 21:24:37.256 INFO [stdout] 0e383b4cc13ae3e36cbd67190d862d26ae01dd0da0631d02c386dabd34d02374
Dec 04 21:24:37.259 INFO running `"docker" "start" "-a" "0e383b4cc13ae3e36cbd67190d862d26ae01dd0da0631d02c386dabd34d02374"`
Dec 04 21:24:39.256 INFO [stderr] usermod: no changes
Dec 04 21:24:39.321 INFO [stderr]     Checking proc-macro2 v0.4.13
Dec 04 21:24:39.321 INFO [stderr]     Checking nom v4.0.0
Dec 04 21:24:40.772 INFO [stderr]     Checking quote v0.6.6
Dec 04 21:24:42.467 INFO [stderr]     Checking classfile-parser v0.3.2
Dec 04 21:24:43.819 INFO [stderr]     Checking jvm-bindgen v0.1.0 (/source)
Dec 04 21:24:45.056 INFO [stderr] warning: unused import: `Read`
Dec 04 21:24:45.057 INFO [stderr]  --> src/lib.rs:9:15
Dec 04 21:24:45.057 INFO [stderr]   |
Dec 04 21:24:45.057 INFO [stderr] 9 | use std::io::{Read, Write};
Dec 04 21:24:45.057 INFO [stderr]   |               ^^^^
Dec 04 21:24:45.057 INFO [stderr]   |
Dec 04 21:24:45.057 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 21:24:45.057 INFO [stderr] 
Dec 04 21:24:45.057 INFO [stderr] warning: unused import: `std::borrow::Cow`
Dec 04 21:24:45.057 INFO [stderr]   --> src/lib.rs:18:5
Dec 04 21:24:45.057 INFO [stderr]    |
Dec 04 21:24:45.057 INFO [stderr] 18 | use std::borrow::Cow;
Dec 04 21:24:45.057 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 04 21:24:45.057 INFO [stderr] 
Dec 04 21:24:45.058 INFO [stderr] warning: unused import: `Read`
Dec 04 21:24:45.058 INFO [stderr]  --> src/lib.rs:9:15
Dec 04 21:24:45.058 INFO [stderr]   |
Dec 04 21:24:45.058 INFO [stderr] 9 | use std::io::{Read, Write};
Dec 04 21:24:45.058 INFO [stderr]   |               ^^^^
Dec 04 21:24:45.058 INFO [stderr]   |
Dec 04 21:24:45.058 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 21:24:45.058 INFO [stderr] 
Dec 04 21:24:45.059 INFO [stderr] warning: unused import: `std::borrow::Cow`
Dec 04 21:24:45.059 INFO [stderr]   --> src/lib.rs:18:5
Dec 04 21:24:45.059 INFO [stderr]    |
Dec 04 21:24:45.059 INFO [stderr] 18 | use std::borrow::Cow;
Dec 04 21:24:45.059 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 04 21:24:45.059 INFO [stderr] 
Dec 04 21:24:45.126 INFO [stderr] warning: unused variable: `is_upper`
Dec 04 21:24:45.126 INFO [stderr]   --> src/lib.rs:59:10
Dec 04 21:24:45.126 INFO [stderr]    |
Dec 04 21:24:45.126 INFO [stderr] 59 |     for (is_upper, chars) in &java_name.chars().group_by(|c| c.is_uppercase()) {
Dec 04 21:24:45.126 INFO [stderr]    |          ^^^^^^^^ help: consider using `_is_upper` instead
Dec 04 21:24:45.126 INFO [stderr]    |
Dec 04 21:24:45.126 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 21:24:45.126 INFO [stderr] 
Dec 04 21:24:45.153 INFO [stderr] warning: method is never used: `stdout`
Dec 04 21:24:45.153 INFO [stderr]   --> src/lib.rs:50:5
Dec 04 21:24:45.153 INFO [stderr]    |
Dec 04 21:24:45.153 INFO [stderr] 50 |     fn stdout(&mut self) -> &mut ChildStdout { self.0.stdout.as_mut().unwrap() }
Dec 04 21:24:45.153 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:24:45.153 INFO [stderr]    |
Dec 04 21:24:45.153 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 21:24:45.153 INFO [stderr] 
Dec 04 21:24:45.155 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 21:24:45.155 INFO [stderr]    --> src/lib.rs:121:5
Dec 04 21:24:45.155 INFO [stderr]     |
Dec 04 21:24:45.155 INFO [stderr] 121 |     write!(rustfmt.stdin(), "{}", gen);
Dec 04 21:24:45.155 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:24:45.155 INFO [stderr]     |
Dec 04 21:24:45.155 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 21:24:45.155 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 21:24:45.155 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 04 21:24:45.155 INFO [stderr] 
Dec 04 21:24:45.242 INFO [stderr] warning: unused variable: `is_upper`
Dec 04 21:24:45.242 INFO [stderr]   --> src/lib.rs:59:10
Dec 04 21:24:45.242 INFO [stderr]    |
Dec 04 21:24:45.242 INFO [stderr] 59 |     for (is_upper, chars) in &java_name.chars().group_by(|c| c.is_uppercase()) {
Dec 04 21:24:45.242 INFO [stderr]    |          ^^^^^^^^ help: consider using `_is_upper` instead
Dec 04 21:24:45.242 INFO [stderr]    |
Dec 04 21:24:45.242 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 21:24:45.242 INFO [stderr] 
Dec 04 21:24:45.283 INFO [stderr] warning: function is never used: `get_class_name`
Dec 04 21:24:45.283 INFO [stderr]   --> src/lib.rs:34:1
Dec 04 21:24:45.283 INFO [stderr]    |
Dec 04 21:24:45.283 INFO [stderr] 34 | fn get_class_name<'a>(class: &'a ClassConstant, class_file: &'a ClassFile) -> &'a str {
Dec 04 21:24:45.283 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:24:45.283 INFO [stderr]    |
Dec 04 21:24:45.283 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 21:24:45.283 INFO [stderr] 
Dec 04 21:24:45.283 INFO [stderr] warning: struct is never constructed: `RustFmt`
Dec 04 21:24:45.283 INFO [stderr]   --> src/lib.rs:38:1
Dec 04 21:24:45.283 INFO [stderr]    |
Dec 04 21:24:45.283 INFO [stderr] 38 | struct RustFmt(Child);
Dec 04 21:24:45.283 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:24:45.283 INFO [stderr] 
Dec 04 21:24:45.283 INFO [stderr] warning: method is never used: `launch`
Dec 04 21:24:45.283 INFO [stderr]   --> src/lib.rs:41:5
Dec 04 21:24:45.283 INFO [stderr]    |
Dec 04 21:24:45.283 INFO [stderr] 41 |     fn launch() -> io::Result<RustFmt> {
Dec 04 21:24:45.283 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:24:45.283 INFO [stderr] 
Dec 04 21:24:45.283 INFO [stderr] warning: method is never used: `stdin`
Dec 04 21:24:45.283 INFO [stderr]   --> src/lib.rs:49:5
Dec 04 21:24:45.283 INFO [stderr]    |
Dec 04 21:24:45.283 INFO [stderr] 49 |     fn stdin(&mut self) -> &mut ChildStdin { self.0.stdin.as_mut().unwrap() }
Dec 04 21:24:45.283 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:24:45.283 INFO [stderr] 
Dec 04 21:24:45.283 INFO [stderr] warning: method is never used: `stdout`
Dec 04 21:24:45.283 INFO [stderr]   --> src/lib.rs:50:5
Dec 04 21:24:45.283 INFO [stderr]    |
Dec 04 21:24:45.283 INFO [stderr] 50 |     fn stdout(&mut self) -> &mut ChildStdout { self.0.stdout.as_mut().unwrap() }
Dec 04 21:24:45.283 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:24:45.283 INFO [stderr] 
Dec 04 21:24:45.283 INFO [stderr] warning: function is never used: `transform_name`
Dec 04 21:24:45.283 INFO [stderr]   --> src/lib.rs:53:1
Dec 04 21:24:45.283 INFO [stderr]    |
Dec 04 21:24:45.283 INFO [stderr] 53 | fn transform_name(java_name: &str) -> String {
Dec 04 21:24:45.283 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:24:45.283 INFO [stderr] 
Dec 04 21:24:45.283 INFO [stderr] warning: function is never used: `gen_method`
Dec 04 21:24:45.283 INFO [stderr]   --> src/lib.rs:85:1
Dec 04 21:24:45.283 INFO [stderr]    |
Dec 04 21:24:45.283 INFO [stderr] 85 | fn gen_method(class_file: &ClassFile, method: &method_info::MethodInfo) -> TokenStream {
Dec 04 21:24:45.283 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:24:45.283 INFO [stderr] 
Dec 04 21:24:45.283 INFO [stderr] warning: function is never used: `bindgen`
Dec 04 21:24:45.283 INFO [stderr]   --> src/lib.rs:95:1
Dec 04 21:24:45.283 INFO [stderr]    |
Dec 04 21:24:45.283 INFO [stderr] 95 | fn bindgen(class_name: &str) {
Dec 04 21:24:45.283 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:24:45.283 INFO [stderr] 
Dec 04 21:24:45.283 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 21:24:45.283 INFO [stderr]    --> src/lib.rs:121:5
Dec 04 21:24:45.283 INFO [stderr]     |
Dec 04 21:24:45.283 INFO [stderr] 121 |     write!(rustfmt.stdin(), "{}", gen);
Dec 04 21:24:45.283 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:24:45.283 INFO [stderr]     |
Dec 04 21:24:45.283 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 21:24:45.283 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 21:24:45.283 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 04 21:24:45.283 INFO [stderr] 
Dec 04 21:24:45.327 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.04s
Dec 04 21:24:45.331 INFO [stderr] su: No module specific data is present
Dec 04 21:24:46.393 INFO running `"docker" "inspect" "0e383b4cc13ae3e36cbd67190d862d26ae01dd0da0631d02c386dabd34d02374"`
Dec 04 21:24:46.775 INFO running `"docker" "rm" "-f" "0e383b4cc13ae3e36cbd67190d862d26ae01dd0da0631d02c386dabd34d02374"`
Dec 04 21:24:47.109 INFO [stdout] 0e383b4cc13ae3e36cbd67190d862d26ae01dd0da0631d02c386dabd34d02374