[INFO] updating cached repository bugaevc/jvm-bindgen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bugaevc/jvm-bindgen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bugaevc/jvm-bindgen" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/bugaevc/jvm-bindgen"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/bugaevc/jvm-bindgen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bugaevc/jvm-bindgen" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/bugaevc/jvm-bindgen"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/bugaevc/jvm-bindgen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 81e0f0f46c85de25e7e7217f05d747eddb54617e
[INFO] sha for GitHub repo bugaevc/jvm-bindgen: 81e0f0f46c85de25e7e7217f05d747eddb54617e
[INFO] validating manifest of bugaevc/jvm-bindgen on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bugaevc/jvm-bindgen on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bugaevc/jvm-bindgen
[INFO] finished frobbing bugaevc/jvm-bindgen
[INFO] frobbed toml for bugaevc/jvm-bindgen written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/bugaevc/jvm-bindgen/Cargo.toml
[INFO] started frobbing bugaevc/jvm-bindgen
[INFO] finished frobbing bugaevc/jvm-bindgen
[INFO] frobbed toml for bugaevc/jvm-bindgen written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/bugaevc/jvm-bindgen/Cargo.toml
[INFO] crate bugaevc/jvm-bindgen already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bugaevc/jvm-bindgen against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-3/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/bugaevc/jvm-bindgen:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e889dadc72dafb603a5a1f1e74f9c6a63f084237fe037456ee2db8e5f286c392
[INFO] running `"docker" "start" "-a" "e889dadc72dafb603a5a1f1e74f9c6a63f084237fe037456ee2db8e5f286c392"`
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking proc-macro2 v0.4.13
[INFO] [stderr]     Checking nom v4.0.0
[INFO] [stderr]     Checking quote v0.6.6
[INFO] [stderr]     Checking classfile-parser v0.3.2
[INFO] [stderr]     Checking jvm-bindgen v0.1.0 (/opt/crater/workdir)
[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)] 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 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)] 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: consider prefixing with an underscore: `_is_upper`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[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: consider prefixing with an underscore: `_is_upper`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_class_name`
[INFO] [stderr]   --> src/lib.rs:34:1
[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]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RustFmt`
[INFO] [stderr]   --> src/lib.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | struct RustFmt(Child);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `launch`
[INFO] [stderr]   --> src/lib.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn launch() -> io::Result<RustFmt> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stdin`
[INFO] [stderr]   --> src/lib.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn stdin(&mut self) -> &mut ChildStdin { self.0.stdin.as_mut().unwrap() }
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stdout`
[INFO] [stderr]   --> src/lib.rs:50:5
[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 is never used: `transform_name`
[INFO] [stderr]   --> src/lib.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn transform_name(java_name: &str) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_method`
[INFO] [stderr]   --> src/lib.rs:85:1
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn gen_method(class_file: &ClassFile, method: &method_info::MethodInfo) -> TokenStream {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bindgen`
[INFO] [stderr]   --> src/lib.rs:95:1
[INFO] [stderr]    |
[INFO] [stderr] 95 | fn bindgen(class_name: &str) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::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: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stdout`
[INFO] [stderr]   --> src/lib.rs:50:5
[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)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::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: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.00s
[INFO] running `"docker" "inspect" "e889dadc72dafb603a5a1f1e74f9c6a63f084237fe037456ee2db8e5f286c392"`
[INFO] running `"docker" "rm" "-f" "e889dadc72dafb603a5a1f1e74f9c6a63f084237fe037456ee2db8e5f286c392"`
[INFO] [stdout] e889dadc72dafb603a5a1f1e74f9c6a63f084237fe037456ee2db8e5f286c392