[INFO] cloning repository https://github.com/Furyzer0/jvm_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Furyzer0/jvm_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuryzer0%2Fjvm_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuryzer0%2Fjvm_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd21ddcaffc717686592923c5549c87bb9d6b4e5
[INFO] checking Furyzer0/jvm_rs against try#075992eda207e1647b699c8c8ada67b32ce7b115 for pr-77271
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuryzer0%2Fjvm_rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Furyzer0/jvm_rs on toolchain 075992eda207e1647b699c8c8ada67b32ce7b115
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Furyzer0/jvm_rs
[INFO] finished tweaking git repo https://github.com/Furyzer0/jvm_rs
[INFO] tweaked toml for git repo https://github.com/Furyzer0/jvm_rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Furyzer0/jvm_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-primitive-derive v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b6687692328c982e7b67c82b7c9a1de53863b1394b9dbcf6d613951e50cf5a9
[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" "6b6687692328c982e7b67c82b7c9a1de53863b1394b9dbcf6d613951e50cf5a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b6687692328c982e7b67c82b7c9a1de53863b1394b9dbcf6d613951e50cf5a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b6687692328c982e7b67c82b7c9a1de53863b1394b9dbcf6d613951e50cf5a9", kill_on_drop: false }`
[INFO] [stdout] 6b6687692328c982e7b67c82b7c9a1de53863b1394b9dbcf6d613951e50cf5a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e0a6f967306b9612837690416636637e8803f9a01e21f34cd3e8d8e13d28b10
[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" "2e0a6f967306b9612837690416636637e8803f9a01e21f34cd3e8d8e13d28b10", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
[INFO] [stderr]     Checking jvm_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Index`
[INFO] [stdout]   --> src/result.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Index(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Index`
[INFO] [stdout]   --> src/result.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Index(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.36s
[INFO] running `Command { std: "docker" "inspect" "2e0a6f967306b9612837690416636637e8803f9a01e21f34cd3e8d8e13d28b10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0a6f967306b9612837690416636637e8803f9a01e21f34cd3e8d8e13d28b10", kill_on_drop: false }`
[INFO] [stdout] 2e0a6f967306b9612837690416636637e8803f9a01e21f34cd3e8d8e13d28b10