[INFO] fetching crate j4rs 0.13.0...
[INFO] testing j4rs-0.13.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate j4rs 0.13.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate j4rs 0.13.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate j4rs 0.13.0
[INFO] finished tweaking crates.io crate j4rs 0.13.0
[INFO] tweaked toml for crates.io crate j4rs 0.13.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c76f84e56a059094526f2f5b2682a836fa28e1c38611779b4f1ec9fd54e7050f
[INFO] running `Command { std: "docker" "start" "-a" "c76f84e56a059094526f2f5b2682a836fa28e1c38611779b4f1ec9fd54e7050f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c76f84e56a059094526f2f5b2682a836fa28e1c38611779b4f1ec9fd54e7050f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c76f84e56a059094526f2f5b2682a836fa28e1c38611779b4f1ec9fd54e7050f", kill_on_drop: false }`
[INFO] [stdout] c76f84e56a059094526f2f5b2682a836fa28e1c38611779b4f1ec9fd54e7050f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5bad6da995b90f99f19a9a62ef31e88146ec982e49cf4849042c554569b81f6b
[INFO] running `Command { std: "docker" "start" "-a" "5bad6da995b90f99f19a9a62ef31e88146ec982e49cf4849042c554569b81f6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.6.6
[INFO] [stderr]    Compiling dirs v3.0.1
[INFO] [stderr]    Compiling sha2 v0.9.2
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling j4rs v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.63s
[INFO] running `Command { std: "docker" "inspect" "5bad6da995b90f99f19a9a62ef31e88146ec982e49cf4849042c554569b81f6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bad6da995b90f99f19a9a62ef31e88146ec982e49cf4849042c554569b81f6b", kill_on_drop: false }`
[INFO] [stdout] 5bad6da995b90f99f19a9a62ef31e88146ec982e49cf4849042c554569b81f6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2a213db395455ee396e2fb7b5d22c35740330a63ef0e02679f751eba7eb306c
[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" "b2a213db395455ee396e2fb7b5d22c35740330a63ef0e02679f751eba7eb306c", kill_on_drop: false }`
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling half v1.6.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling tinytemplate v1.2.0
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling j4rs v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 40.80s
[INFO] running `Command { std: "docker" "inspect" "b2a213db395455ee396e2fb7b5d22c35740330a63ef0e02679f751eba7eb306c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2a213db395455ee396e2fb7b5d22c35740330a63ef0e02679f751eba7eb306c", kill_on_drop: false }`
[INFO] [stdout] b2a213db395455ee396e2fb7b5d22c35740330a63ef0e02679f751eba7eb306c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ec8cba25240777668e51595ce7e0afa96dd7150ebe317d96fb5a6ba182706724
[INFO] running `Command { std: "docker" "start" "-a" "ec8cba25240777668e51595ce7e0afa96dd7150ebe317d96fb5a6ba182706724", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/j4rs-20e6b2533983cec5
[INFO] [stdout] running 44 tests
[INFO] [stdout] test api::api_unit_tests::test_select ... ok
[INFO] [stdout] test api::api_unit_tests::test_copy_j4rs_libs_under ... FAILED
[INFO] [stdout] test api::api_unit_tests::test_select_timeout ... ok
[INFO] [stdout] test api::api_unit_tests::invocation_arg_try_from_basic_types ... ok
[INFO] [stdout] test lib_unit_tests::access_class_field ... ok
[INFO] [stdout] test api::api_unit_tests::jvm_builder ... ok
[INFO] [stdout] test api::api_unit_tests::new_invocation_arg ... ok
[INFO] [stdout] test jfx::api_unit_tests::test_deploy_javafx_dependencies ... ok
[INFO] [stdout] test lib_unit_tests::clone_instance ... ok
[INFO] [stdout] test lib_unit_tests::cast ... ok
[INFO] [stderr] thread '<unnamed>' panicked at 'upgrading again', /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sync/mpsc/oneshot.rs:198:22
[INFO] [stderr] stack backtrace:
[INFO] [stdout] test lib_unit_tests::create_instance_and_invoke ... ok
[INFO] [stderr]    0:     0x7f6d7d278430 - std::backtrace_rs::backtrace::libunwind::trace::h04d12fdcddff82aa
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5
[INFO] [stderr]    1:     0x7f6d7d278430 - std::backtrace_rs::backtrace::trace_unsynchronized::h1459b974b6fbe5e1
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7f6d7d278430 - std::sys_common::backtrace::_print_fmt::h9b8396a669123d95
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7f6d7d278430 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he009dcaaa75eed60
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]    4:     0x7f6d7d29613c - core::fmt::write::h77b4746b0dea1dd3
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/fmt/mod.rs:1078:17
[INFO] [stderr]    5:     0x7f6d7d2752d2 - std::io::Write::write_fmt::heb7e50902e98831c
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/io/mod.rs:1518:15
[INFO] [stderr]    6:     0x7f6d7d27a425 - std::sys_common::backtrace::_print::h2d880c9e69a21be9
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]    7:     0x7f6d7d27a425 - std::sys_common::backtrace::print::h5f02b1bb49f36879
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]    8:     0x7f6d7d27a425 - std::panicking::default_hook::{{closure}}::h658e288a7a809b29
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:208:50
[INFO] [stderr]    9:     0x7f6d7d27a0c8 - std::panicking::default_hook::hb52d73f0da9a4bb8
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:227:9
[INFO] [stderr]   10:     0x7f6d7d27ab21 - std::panicking::rust_panic_with_hook::hfe7e1c684e3e6462
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:593:17
[INFO] [stderr]   11:     0x7f6d7d21feee - std::panicking::begin_panic::{{closure}}::h6399370042e17567
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:522:9
[INFO] [stderr]   12:     0x7f6d7d21e0b9 - std::sys_common::backtrace::__rust_end_short_backtrace::he1c0661e9dce48dc
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]   13:     0x7f6d7d21fe1b - std::panicking::begin_panic::h4d82eaa5994e0edb
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:521:12
[INFO] [stderr]   14:     0x7f6d7d1f2521 - std::sync::mpsc::oneshot::Packet<T>::upgrade::hafba53a95a1fdc3b
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sync/mpsc/oneshot.rs:198:22
[INFO] [stderr]   15:     0x7f6d7d1df8ab - std::sync::mpsc::Sender<T>::send::h261dbbf94abdf9bd
[INFO] [stderr]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sync/mpsc/mod.rs:776:27
[INFO] [stderr]   16:     0x7f6d7d2091b9 - Java_org_astonbitecode_j4rs_api_invocation_NativeCallbackToRustChannelSupport_docallbacktochannel
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/j4rs-0.11.2/src/lib.rs:71:22
[INFO] [stderr]   17:     0x7f6d41018427 - <unknown>
[INFO] [stderr] fatal runtime error: failed to initiate panic, error 5
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/j4rs-20e6b2533983cec5` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "ec8cba25240777668e51595ce7e0afa96dd7150ebe317d96fb5a6ba182706724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec8cba25240777668e51595ce7e0afa96dd7150ebe317d96fb5a6ba182706724", kill_on_drop: false }`
[INFO] [stdout] ec8cba25240777668e51595ce7e0afa96dd7150ebe317d96fb5a6ba182706724