[INFO] cloning repository https://github.com/Furyzer0/jvm_rs
[INFO] running `"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"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuryzer0%2Fjvm_rs'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dd21ddcaffc717686592923c5549c87bb9d6b4e5
[INFO] checking Furyzer0/jvm_rs against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuryzer0%2Fjvm_rs" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Furyzer0/jvm_rs on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Furyzer0/jvm_rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ae09f6e86ce58a550a8b402aea94647bcdc50e252925bced24a8a34abfdabe17
[INFO] running `"docker" "start" "-a" "ae09f6e86ce58a550a8b402aea94647bcdc50e252925bced24a8a34abfdabe17"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
[INFO] [stderr]     Checking jvm_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `Index`
[INFO] [stderr]   --> src/result.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Index(usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Index`
[INFO] [stderr]   --> src/result.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Index(usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.17s
[INFO] running `"docker" "inspect" "ae09f6e86ce58a550a8b402aea94647bcdc50e252925bced24a8a34abfdabe17"`
[INFO] running `"docker" "rm" "-f" "ae09f6e86ce58a550a8b402aea94647bcdc50e252925bced24a8a34abfdabe17"`
[INFO] [stdout] ae09f6e86ce58a550a8b402aea94647bcdc50e252925bced24a8a34abfdabe17