[INFO] cloning repository Yoga07/sorts
[INFO] running `"git" "clone" "--bare" "git://github.com/Yoga07/sorts.git" "work/cache/sources/gh/Yoga07/sorts"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/Yoga07/sorts'...
[INFO] running `"git" "clone" "work/cache/sources/gh/Yoga07/sorts" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Yoga07/sorts"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Yoga07/sorts'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Yoga07/sorts" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Yoga07/sorts"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Yoga07/sorts'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 39c1dd4a1e8b0db68f9a3d6629527b523ab10ef5
[INFO] sha for GitHub repo Yoga07/sorts: 39c1dd4a1e8b0db68f9a3d6629527b523ab10ef5
[INFO] validating manifest of Yoga07/sorts on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Yoga07/sorts on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Yoga07/sorts
[INFO] finished frobbing Yoga07/sorts
[INFO] frobbed toml for Yoga07/sorts written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Yoga07/sorts/Cargo.toml
[INFO] started frobbing Yoga07/sorts
[INFO] finished frobbing Yoga07/sorts
[INFO] frobbed toml for Yoga07/sorts written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Yoga07/sorts/Cargo.toml
[INFO] crate Yoga07/sorts already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Yoga07/sorts against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Yoga07/sorts:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b7f375a5af043c37f890e497fccd6369134ea0cf54e65cb10aa86c6cbcef01bd
[INFO] running `"docker" "start" "-a" "b7f375a5af043c37f890e497fccd6369134ea0cf54e65cb10aa86c6cbcef01bd"`
[INFO] [stderr]    Compiling jni v0.10.2
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking memchr v2.1.2
[INFO] [stderr]     Checking backtrace v0.3.13
[INFO] [stderr]     Checking combine v3.6.3
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking sorts v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `JClass`, `JObject`, `JValue`
[INFO] [stderr]  --> src/lib.rs:9:20
[INFO] [stderr]   |
[INFO] [stderr] 9 | use jni::objects::{JClass,JObject,JValue};
[INFO] [stderr]   |                    ^^^^^^ ^^^^^^^ ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `_jobject`, `jarray`, `jobject`, `jsize`
[INFO] [stderr]   --> src/lib.rs:10:31
[INFO] [stderr]    |
[INFO] [stderr] 10 | use jni::sys::{jint,jintArray,jsize,_jobject,jarray,jobject,jclass};
[INFO] [stderr]    |                               ^^^^^ ^^^^^^^^ ^^^^^^ ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut x = env.get_array_length(array).unwrap() as usize;
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `JClass`, `JObject`, `JValue`
[INFO] [stderr]  --> src/lib.rs:9:20
[INFO] [stderr]   |
[INFO] [stderr] 9 | use jni::objects::{JClass,JObject,JValue};
[INFO] [stderr]   |                    ^^^^^^ ^^^^^^^ ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `_jobject`, `jarray`, `jobject`, `jsize`
[INFO] [stderr]   --> src/lib.rs:10:31
[INFO] [stderr]    |
[INFO] [stderr] 10 | use jni::sys::{jint,jintArray,jsize,_jobject,jarray,jobject,jclass};
[INFO] [stderr]    |                               ^^^^^ ^^^^^^^^ ^^^^^^ ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut x = env.get_array_length(array).unwrap() as usize;
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.71s
[INFO] running `"docker" "inspect" "b7f375a5af043c37f890e497fccd6369134ea0cf54e65cb10aa86c6cbcef01bd"`
[INFO] running `"docker" "rm" "-f" "b7f375a5af043c37f890e497fccd6369134ea0cf54e65cb10aa86c6cbcef01bd"`
[INFO] [stdout] b7f375a5af043c37f890e497fccd6369134ea0cf54e65cb10aa86c6cbcef01bd