[INFO] fetching crate j4rs 0.22.0...
[INFO] checking j4rs-0.22.0 against master#a5db378dc14a40dd1580c27fb8362156446382c3 for pr-136490
[INFO] extracting crate j4rs 0.22.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate j4rs 0.22.0 on toolchain a5db378dc14a40dd1580c27fb8362156446382c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate j4rs 0.22.0
[INFO] finished tweaking crates.io crate j4rs 0.22.0
[INFO] tweaked toml for crates.io crate j4rs 0.22.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate j4rs 0.22.0 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" "+a5db378dc14a40dd1580c27fb8362156446382c3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded java-locator v0.1.8
[INFO] [stderr]   Downloaded jni-sys-macros v0.1.0
[INFO] [stderr]   Downloaded jni-sys v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abe0c6b400d2a1d6182d071d5578563fba103fd59e4c2012d0f2920c7fdc88c2
[INFO] running `Command { std: "docker" "start" "-a" "abe0c6b400d2a1d6182d071d5578563fba103fd59e4c2012d0f2920c7fdc88c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abe0c6b400d2a1d6182d071d5578563fba103fd59e4c2012d0f2920c7fdc88c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abe0c6b400d2a1d6182d071d5578563fba103fd59e4c2012d0f2920c7fdc88c2", kill_on_drop: false }`
[INFO] [stdout] abe0c6b400d2a1d6182d071d5578563fba103fd59e4c2012d0f2920c7fdc88c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] def568f83ded0754b6b7c32a6f771a61df023da5fd80edaf0029acdc9004146b
[INFO] running `Command { std: "docker" "start" "-a" "def568f83ded0754b6b7c32a6f771a61df023da5fd80edaf0029acdc9004146b", kill_on_drop: false }`
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[INFO] [stderr]    Compiling j4rs v0.22.0 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: function `do_instance_creation` is never used
[INFO] [stdout]   --> benches/j4rs_benchmark.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn do_instance_creation(jvm: &Jvm) -> Instance {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_invocation_w_no_args` is never used
[INFO] [stdout]   --> benches/j4rs_benchmark.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn do_invocation_w_no_args(jvm: &Jvm, instance: &Instance) -> Instance {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_invocation_w_string_args` is never used
[INFO] [stdout]   --> benches/j4rs_benchmark.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn do_invocation_w_string_args(jvm: &Jvm, instance: &Instance) -> Instance {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_invocation_w_integer_args` is never used
[INFO] [stdout]   --> benches/j4rs_benchmark.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn do_invocation_w_integer_args(jvm: &Jvm, instance: &Instance) -> Instance {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_invocation_w_string_args_and_to_rust` is never used
[INFO] [stdout]   --> benches/j4rs_benchmark.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn do_invocation_w_string_args_and_to_rust(jvm: &Jvm, instance: &Instance) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `j4rs_benchmark` is never used
[INFO] [stdout]   --> benches/j4rs_benchmark.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn j4rs_benchmark(c: &mut Criterion) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "def568f83ded0754b6b7c32a6f771a61df023da5fd80edaf0029acdc9004146b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def568f83ded0754b6b7c32a6f771a61df023da5fd80edaf0029acdc9004146b", kill_on_drop: false }`
[INFO] [stdout] def568f83ded0754b6b7c32a6f771a61df023da5fd80edaf0029acdc9004146b