Dec 19 19:26:15.517 INFO checking bugaevc/jvm-bindgen against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 19:26:15.517 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:26:15.856 INFO [stdout] 67399ba40e95dec4f0d74c166caa1e10fcfa267476654838e66b8221bda1b87f
Dec 19 19:26:15.860 INFO running `"docker" "start" "-a" "67399ba40e95dec4f0d74c166caa1e10fcfa267476654838e66b8221bda1b87f"`
Dec 19 19:26:17.164 INFO [stderr]     Checking memchr v2.0.1
Dec 19 19:26:17.172 INFO [stderr]     Checking proc-macro2 v0.4.13
Dec 19 19:26:17.720 INFO [stderr]     Checking nom v4.0.0
Dec 19 19:26:18.853 INFO [stderr]     Checking quote v0.6.6
Dec 19 19:26:20.403 INFO [stderr]     Checking classfile-parser v0.3.2
Dec 19 19:26:21.421 INFO [stderr]     Checking jvm-bindgen v0.1.0 (/opt/crater/workdir)
Dec 19 19:26:21.916 INFO [stderr] warning: unused import: `Read`
Dec 19 19:26:21.916 INFO [stderr]  --> src/lib.rs:9:15
Dec 19 19:26:21.916 INFO [stderr]   |
Dec 19 19:26:21.916 INFO [stderr] 9 | use std::io::{Read, Write};
Dec 19 19:26:21.916 INFO [stderr]   |               ^^^^
Dec 19 19:26:21.916 INFO [stderr]   |
Dec 19 19:26:21.916 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 19:26:21.916 INFO [stderr] 
Dec 19 19:26:21.917 INFO [stderr] warning: unused import: `std::borrow::Cow`
Dec 19 19:26:21.917 INFO [stderr]   --> src/lib.rs:18:5
Dec 19 19:26:21.917 INFO [stderr]    |
Dec 19 19:26:21.917 INFO [stderr] 18 | use std::borrow::Cow;
Dec 19 19:26:21.917 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 19:26:21.917 INFO [stderr] 
Dec 19 19:26:21.926 INFO [stderr] warning: unused import: `Read`
Dec 19 19:26:21.927 INFO [stderr]  --> src/lib.rs:9:15
Dec 19 19:26:21.927 INFO [stderr]   |
Dec 19 19:26:21.927 INFO [stderr] 9 | use std::io::{Read, Write};
Dec 19 19:26:21.927 INFO [stderr]   |               ^^^^
Dec 19 19:26:21.928 INFO [stderr]   |
Dec 19 19:26:21.928 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 19:26:21.928 INFO [stderr] 
Dec 19 19:26:21.928 INFO [stderr] warning: unused import: `std::borrow::Cow`
Dec 19 19:26:21.929 INFO [stderr]   --> src/lib.rs:18:5
Dec 19 19:26:21.929 INFO [stderr]    |
Dec 19 19:26:21.929 INFO [stderr] 18 | use std::borrow::Cow;
Dec 19 19:26:21.929 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 19:26:21.930 INFO [stderr] 
Dec 19 19:26:22.028 INFO [stderr] warning: unused variable: `is_upper`
Dec 19 19:26:22.028 INFO [stderr]   --> src/lib.rs:59:10
Dec 19 19:26:22.028 INFO [stderr]    |
Dec 19 19:26:22.028 INFO [stderr] 59 |     for (is_upper, chars) in &java_name.chars().group_by(|c| c.is_uppercase()) {
Dec 19 19:26:22.028 INFO [stderr]    |          ^^^^^^^^ help: consider using `_is_upper` instead
Dec 19 19:26:22.028 INFO [stderr]    |
Dec 19 19:26:22.028 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 19:26:22.028 INFO [stderr] 
Dec 19 19:26:22.054 INFO [stderr] warning: unused variable: `is_upper`
Dec 19 19:26:22.054 INFO [stderr]   --> src/lib.rs:59:10
Dec 19 19:26:22.054 INFO [stderr]    |
Dec 19 19:26:22.054 INFO [stderr] 59 |     for (is_upper, chars) in &java_name.chars().group_by(|c| c.is_uppercase()) {
Dec 19 19:26:22.054 INFO [stderr]    |          ^^^^^^^^ help: consider using `_is_upper` instead
Dec 19 19:26:22.055 INFO [stderr]    |
Dec 19 19:26:22.055 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 19:26:22.055 INFO [stderr] 
Dec 19 19:26:22.068 INFO [stderr] warning: function is never used: `get_class_name`
Dec 19 19:26:22.068 INFO [stderr]   --> src/lib.rs:34:1
Dec 19 19:26:22.068 INFO [stderr]    |
Dec 19 19:26:22.068 INFO [stderr] 34 | fn get_class_name<'a>(class: &'a ClassConstant, class_file: &'a ClassFile) -> &'a str {
Dec 19 19:26:22.068 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:22.068 INFO [stderr]    |
Dec 19 19:26:22.068 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 19:26:22.068 INFO [stderr] 
Dec 19 19:26:22.068 INFO [stderr] warning: struct is never constructed: `RustFmt`
Dec 19 19:26:22.068 INFO [stderr]   --> src/lib.rs:38:1
Dec 19 19:26:22.068 INFO [stderr]    |
Dec 19 19:26:22.068 INFO [stderr] 38 | struct RustFmt(Child);
Dec 19 19:26:22.068 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:22.068 INFO [stderr] 
Dec 19 19:26:22.068 INFO [stderr] warning: method is never used: `launch`
Dec 19 19:26:22.068 INFO [stderr]   --> src/lib.rs:41:5
Dec 19 19:26:22.068 INFO [stderr]    |
Dec 19 19:26:22.068 INFO [stderr] 41 |     fn launch() -> io::Result<RustFmt> {
Dec 19 19:26:22.068 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:22.068 INFO [stderr] 
Dec 19 19:26:22.068 INFO [stderr] warning: method is never used: `stdin`
Dec 19 19:26:22.068 INFO [stderr]   --> src/lib.rs:49:5
Dec 19 19:26:22.068 INFO [stderr]    |
Dec 19 19:26:22.068 INFO [stderr] 49 |     fn stdin(&mut self) -> &mut ChildStdin { self.0.stdin.as_mut().unwrap() }
Dec 19 19:26:22.068 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:22.068 INFO [stderr] 
Dec 19 19:26:22.068 INFO [stderr] warning: method is never used: `stdout`
Dec 19 19:26:22.068 INFO [stderr]   --> src/lib.rs:50:5
Dec 19 19:26:22.068 INFO [stderr]    |
Dec 19 19:26:22.068 INFO [stderr] 50 |     fn stdout(&mut self) -> &mut ChildStdout { self.0.stdout.as_mut().unwrap() }
Dec 19 19:26:22.068 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:22.068 INFO [stderr] 
Dec 19 19:26:22.068 INFO [stderr] warning: function is never used: `transform_name`
Dec 19 19:26:22.068 INFO [stderr]   --> src/lib.rs:53:1
Dec 19 19:26:22.068 INFO [stderr]    |
Dec 19 19:26:22.068 INFO [stderr] 53 | fn transform_name(java_name: &str) -> String {
Dec 19 19:26:22.069 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:22.069 INFO [stderr] 
Dec 19 19:26:22.069 INFO [stderr] warning: function is never used: `gen_method`
Dec 19 19:26:22.069 INFO [stderr]   --> src/lib.rs:85:1
Dec 19 19:26:22.069 INFO [stderr]    |
Dec 19 19:26:22.069 INFO [stderr] 85 | fn gen_method(class_file: &ClassFile, method: &method_info::MethodInfo) -> TokenStream {
Dec 19 19:26:22.069 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:22.069 INFO [stderr] 
Dec 19 19:26:22.069 INFO [stderr] warning: function is never used: `bindgen`
Dec 19 19:26:22.069 INFO [stderr]   --> src/lib.rs:95:1
Dec 19 19:26:22.069 INFO [stderr]    |
Dec 19 19:26:22.069 INFO [stderr] 95 | fn bindgen(class_name: &str) {
Dec 19 19:26:22.069 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:22.069 INFO [stderr] 
Dec 19 19:26:22.069 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:26:22.069 INFO [stderr]    --> src/lib.rs:121:5
Dec 19 19:26:22.069 INFO [stderr]     |
Dec 19 19:26:22.069 INFO [stderr] 121 |     write!(rustfmt.stdin(), "{}", gen);
Dec 19 19:26:22.069 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:22.069 INFO [stderr]     |
Dec 19 19:26:22.069 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 19:26:22.069 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:26:22.069 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 19:26:22.069 INFO [stderr] 
Dec 19 19:26:22.090 INFO [stderr] warning: method is never used: `stdout`
Dec 19 19:26:22.090 INFO [stderr]   --> src/lib.rs:50:5
Dec 19 19:26:22.090 INFO [stderr]    |
Dec 19 19:26:22.090 INFO [stderr] 50 |     fn stdout(&mut self) -> &mut ChildStdout { self.0.stdout.as_mut().unwrap() }
Dec 19 19:26:22.090 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:22.090 INFO [stderr]    |
Dec 19 19:26:22.090 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 19:26:22.090 INFO [stderr] 
Dec 19 19:26:22.091 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:26:22.091 INFO [stderr]    --> src/lib.rs:121:5
Dec 19 19:26:22.091 INFO [stderr]     |
Dec 19 19:26:22.091 INFO [stderr] 121 |     write!(rustfmt.stdin(), "{}", gen);
Dec 19 19:26:22.091 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:26:22.091 INFO [stderr]     |
Dec 19 19:26:22.091 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 19:26:22.091 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:26:22.091 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 19:26:22.091 INFO [stderr] 
Dec 19 19:26:22.132 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.01s
Dec 19 19:26:23.448 INFO running `"docker" "inspect" "67399ba40e95dec4f0d74c166caa1e10fcfa267476654838e66b8221bda1b87f"`
Dec 19 19:26:23.642 INFO running `"docker" "rm" "-f" "67399ba40e95dec4f0d74c166caa1e10fcfa267476654838e66b8221bda1b87f"`
Dec 19 19:26:23.920 INFO [stdout] 67399ba40e95dec4f0d74c166caa1e10fcfa267476654838e66b8221bda1b87f