[INFO] cloning repository https://github.com/Yoga07/sorts
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Yoga07/sorts" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoga07%2Fsorts", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoga07%2Fsorts'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39c1dd4a1e8b0db68f9a3d6629527b523ab10ef5
[INFO] checking Yoga07/sorts against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoga07%2Fsorts" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Yoga07/sorts on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Yoga07/sorts
[INFO] finished tweaking git repo https://github.com/Yoga07/sorts
[INFO] tweaked toml for git repo https://github.com/Yoga07/sorts written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Yoga07/sorts already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cesu8 v1.1.0
[INFO] [stderr]   Downloaded ascii v0.9.1
[INFO] [stderr]   Downloaded autocfg v0.1.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.11
[INFO] [stderr]   Downloaded combine v3.6.3
[INFO] [stderr]   Downloaded jni v0.10.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e1ffb4510713ab12ef1a5ca9e99dc88891dd11a6cba11b69b1234e02e6efa41
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7e1ffb4510713ab12ef1a5ca9e99dc88891dd11a6cba11b69b1234e02e6efa41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e1ffb4510713ab12ef1a5ca9e99dc88891dd11a6cba11b69b1234e02e6efa41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e1ffb4510713ab12ef1a5ca9e99dc88891dd11a6cba11b69b1234e02e6efa41", kill_on_drop: false }`
[INFO] [stdout] 7e1ffb4510713ab12ef1a5ca9e99dc88891dd11a6cba11b69b1234e02e6efa41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1be0ad6d2d4536c47343514e16e43cf06ab2fc7be903201958837cb8e8e8d800
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1be0ad6d2d4536c47343514e16e43cf06ab2fc7be903201958837cb8e8e8d800", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking ascii v0.9.1
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking jni-sys v0.3.0
[INFO] [stderr]    Compiling walkdir v2.2.7
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking backtrace v0.3.13
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]    Compiling jni v0.10.2
[INFO] [stderr]     Checking combine v3.6.3
[INFO] [stderr]     Checking sorts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `JClass`, `JObject`, `JValue`
[INFO] [stdout]  --> src/lib.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 | use jni::objects::{JClass,JObject,JValue};
[INFO] [stdout]   |                    ^^^^^^ ^^^^^^^ ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `_jobject`, `jarray`, `jobject`, `jsize`
[INFO] [stdout]   --> src/lib.rs:10:31
[INFO] [stdout]    |
[INFO] [stdout] 10 | use jni::sys::{jint,jintArray,jsize,_jobject,jarray,jobject,jclass};
[INFO] [stdout]    |                               ^^^^^ ^^^^^^^^ ^^^^^^ ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `JClass`, `JObject`, `JValue`
[INFO] [stdout]  --> src/lib.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 | use jni::objects::{JClass,JObject,JValue};
[INFO] [stdout]   |                    ^^^^^^ ^^^^^^^ ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `_jobject`, `jarray`, `jobject`, `jsize`
[INFO] [stdout]   --> src/lib.rs:10:31
[INFO] [stdout]    |
[INFO] [stdout] 10 | use jni::sys::{jint,jintArray,jsize,_jobject,jarray,jobject,jclass};
[INFO] [stdout]    |                               ^^^^^ ^^^^^^^^ ^^^^^^ ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut x = env.get_array_length(array).unwrap() as usize;
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut x = env.get_array_length(array).unwrap() as usize;
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[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 22.43s
[INFO] running `Command { std: "docker" "inspect" "1be0ad6d2d4536c47343514e16e43cf06ab2fc7be903201958837cb8e8e8d800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1be0ad6d2d4536c47343514e16e43cf06ab2fc7be903201958837cb8e8e8d800", kill_on_drop: false }`
[INFO] [stdout] 1be0ad6d2d4536c47343514e16e43cf06ab2fc7be903201958837cb8e8e8d800