[INFO] cloning repository https://github.com/krishnakumar4a4/rust-java-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krishnakumar4a4/rust-java-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrishnakumar4a4%2Frust-java-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrishnakumar4a4%2Frust-java-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 618da43c3dbf1ba4d2b77ec3a483c5a73b80da51
[INFO] checking krishnakumar4a4/rust-java-rust against master#18a6d911caba59605eb03db1452848a85d2e5879 for pr-112743
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrishnakumar4a4%2Frust-java-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/krishnakumar4a4/rust-java-rust on toolchain 18a6d911caba59605eb03db1452848a85d2e5879
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/krishnakumar4a4/rust-java-rust
[INFO] finished tweaking git repo https://github.com/krishnakumar4a4/rust-java-rust
[INFO] tweaked toml for git repo https://github.com/krishnakumar4a4/rust-java-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/krishnakumar4a4/rust-java-rust 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" "+18a6d911caba59605eb03db1452848a85d2e5879" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jni v0.11.0
[INFO] [stderr]   Downloaded rucaja v0.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfb2f7242c9d13999aaea1e2c2ad66eec0b2eb5d3c8a43a9b926ab1022b018fb
[INFO] running `Command { std: "docker" "start" "-a" "dfb2f7242c9d13999aaea1e2c2ad66eec0b2eb5d3c8a43a9b926ab1022b018fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfb2f7242c9d13999aaea1e2c2ad66eec0b2eb5d3c8a43a9b926ab1022b018fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfb2f7242c9d13999aaea1e2c2ad66eec0b2eb5d3c8a43a9b926ab1022b018fb", kill_on_drop: false }`
[INFO] [stdout] dfb2f7242c9d13999aaea1e2c2ad66eec0b2eb5d3c8a43a9b926ab1022b018fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 539750192de1a891a54a55928ee20fa2da8d7bc2bb5702286293e1afe23b4212
[INFO] running `Command { std: "docker" "start" "-a" "539750192de1a891a54a55928ee20fa2da8d7bc2bb5702286293e1afe23b4212", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.31
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling rucaja v0.4.5
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]     Checking jni-sys v0.3.0
[INFO] [stderr]     Checking ascii v0.9.1
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]    Compiling rust-java-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling walkdir v2.2.7
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling jni v0.11.0
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stdout] warning: unused import: `jbyteArray`
[INFO] [stdout]  --> src/main.rs:9:85
[INFO] [stdout]   |
[INFO] [stdout] 9 | use jni_sys::{_jobject, JNINativeInterface_, JNINativeMethod, jclass, jint, JNIEnv, jbyteArray};
[INFO] [stdout]   |                                                                                     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:55:80
[INFO] [stdout]    |
[INFO] [stdout] 55 | ...rom_java_with_byte_array as (extern "C" fn(e: jni_JNIEnv, c: jclass, a: jni_jbyteArray) -> jni_jbyteArray) as *mut c_void;
[INFO] [stdout]    |                                ^                                                                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -     let call_from_java_with_byte_array_ptr = call_from_java_with_byte_array as (extern "C" fn(e: jni_JNIEnv, c: jclass, a: jni_jbyteArray) -> jni_jbyteArray) as *mut c_void;
[INFO] [stdout] 55 +     let call_from_java_with_byte_array_ptr = call_from_java_with_byte_array as extern "C" fn(e: jni_JNIEnv, c: jclass, a: jni_jbyteArray) -> jni_jbyteArray as *mut c_void;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `jbyteArray`
[INFO] [stdout]  --> src/main.rs:9:85
[INFO] [stdout]   |
[INFO] [stdout] 9 | use jni_sys::{_jobject, JNINativeInterface_, JNINativeMethod, jclass, jint, JNIEnv, jbyteArray};
[INFO] [stdout]   |                                                                                     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:55:80
[INFO] [stdout]    |
[INFO] [stdout] 55 | ...rom_java_with_byte_array as (extern "C" fn(e: jni_JNIEnv, c: jclass, a: jni_jbyteArray) -> jni_jbyteArray) as *mut c_void;
[INFO] [stdout]    |                                ^                                                                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -     let call_from_java_with_byte_array_ptr = call_from_java_with_byte_array as (extern "C" fn(e: jni_JNIEnv, c: jclass, a: jni_jbyteArray) -> jni_jbyteArray) as *mut c_void;
[INFO] [stdout] 55 +     let call_from_java_with_byte_array_ptr = call_from_java_with_byte_array as extern "C" fn(e: jni_JNIEnv, c: jclass, a: jni_jbyteArray) -> jni_jbyteArray as *mut c_void;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/main.rs:101:39
[INFO] [stdout]     |
[INFO] [stdout] 101 | extern "C" fn call_from_java_with_int(env: &JNIEnv, _class: jclass, n: jint) {
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/main.rs:117:50
[INFO] [stdout]     |
[INFO] [stdout] 117 | extern "C" fn call_from_java_with_byte_array_arg(env: JNIEnv, _class: jclass, a: jni_jbyteArray) {
[INFO] [stdout]     |                                                  ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/main.rs:101:39
[INFO] [stdout]     |
[INFO] [stdout] 101 | extern "C" fn call_from_java_with_int(env: &JNIEnv, _class: jclass, n: jint) {
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/main.rs:117:50
[INFO] [stdout]     |
[INFO] [stdout] 117 | extern "C" fn call_from_java_with_byte_array_arg(env: JNIEnv, _class: jclass, a: jni_jbyteArray) {
[INFO] [stdout]     |                                                  ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `Command { std: "docker" "inspect" "539750192de1a891a54a55928ee20fa2da8d7bc2bb5702286293e1afe23b4212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "539750192de1a891a54a55928ee20fa2da8d7bc2bb5702286293e1afe23b4212", kill_on_drop: false }`
[INFO] [stdout] 539750192de1a891a54a55928ee20fa2da8d7bc2bb5702286293e1afe23b4212