[INFO] fetching crate ffi_helpers 0.2.0...
[INFO] testing ffi_helpers-0.2.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate ffi_helpers 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ffi_helpers 0.2.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ffi_helpers 0.2.0
[INFO] finished tweaking crates.io crate ffi_helpers 0.2.0
[INFO] tweaked toml for crates.io crate ffi_helpers 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1a6c91b9a44578002a5743ec70a9ded8b05f254f034d4696437485ad060f6c1
[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" "d1a6c91b9a44578002a5743ec70a9ded8b05f254f034d4696437485ad060f6c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1a6c91b9a44578002a5743ec70a9ded8b05f254f034d4696437485ad060f6c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1a6c91b9a44578002a5743ec70a9ded8b05f254f034d4696437485ad060f6c1", kill_on_drop: false }`
[INFO] [stdout] d1a6c91b9a44578002a5743ec70a9ded8b05f254f034d4696437485ad060f6c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] edf57ed8bf04987800dc0ac698183b2586f63416887f69086a9b8ea0252cd07f
[INFO] running `Command { std: "docker" "start" "-a" "edf57ed8bf04987800dc0ac698183b2586f63416887f69086a9b8ea0252cd07f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ffi_helpers v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "edf57ed8bf04987800dc0ac698183b2586f63416887f69086a9b8ea0252cd07f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edf57ed8bf04987800dc0ac698183b2586f63416887f69086a9b8ea0252cd07f", kill_on_drop: false }`
[INFO] [stdout] edf57ed8bf04987800dc0ac698183b2586f63416887f69086a9b8ea0252cd07f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f71aaf1a1778629aff234d576aa177eeed6ec5fb0618974af49a941c3c560fd
[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" "7f71aaf1a1778629aff234d576aa177eeed6ec5fb0618974af49a941c3c560fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling ffi_helpers v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "7f71aaf1a1778629aff234d576aa177eeed6ec5fb0618974af49a941c3c560fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f71aaf1a1778629aff234d576aa177eeed6ec5fb0618974af49a941c3c560fd", kill_on_drop: false }`
[INFO] [stdout] 7f71aaf1a1778629aff234d576aa177eeed6ec5fb0618974af49a941c3c560fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aa856b83e39d8090c89b7500778f83a39c2d23a5986d95549fada1a7fa2205ec
[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" "aa856b83e39d8090c89b7500778f83a39c2d23a5986d95549fada1a7fa2205ec", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ffi_helpers-5233dbebabf9ce88
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test error_handling::tests::get_the_last_error_messages_length ... ok
[INFO] [stdout] test error_handling::tests::take_the_last_error ... ok
[INFO] [stdout] test error_handling::tests::write_the_last_error_message_into_a_buffer ... ok
[INFO] [stdout] test nullable::tests::can_detect_non_null_pointers ... ok
[INFO] [stdout] test nullable::tests::can_detect_null_pointers ... ok
[INFO] [stdout] test error_handling::tests::update_the_error ... ok
[INFO] [stdout] test nullable::tests::null_pointer_check_on_garbage_address_doesnt_segfault ... ok
[INFO] [stdout] test task::tests::use_the_c_api ... ok
[INFO] [stderr] thread '<unnamed>' panicked at 'Oops', src/task.rs:537:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x560072c866b0 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]    1:     0x560072c866b0 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x560072c866b0 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]    3:     0x560072c866b0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]    4:     0x560072ca95ac - core::fmt::write::h9ddafa4860d8adff
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stderr]    5:     0x560072c831a7 - std::io::Write::write_fmt::h1d2ee292d2b65481
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stderr]    6:     0x560072c88b50 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]    7:     0x560072c88b50 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]    8:     0x560072c88b50 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stderr]    9:     0x560072c8889c - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
[INFO] [stderr]   10:     0x560072c891b3 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stderr]   11:     0x560072bb016c - std::panicking::begin_panic::{{closure}}::hbdf93ca2c6075aaf
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:498
[INFO] [stderr]   12:     0x560072bd78e9 - std::sys_common::backtrace::__rust_end_short_backtrace::h2aed6d6028f7ce99
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]   13:     0x560072bb0097 - std::panicking::begin_panic::h4f99a1ea9a9631a8
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:497
[INFO] [stderr]   14:     0x560072b5346a - <ffi_helpers::task::tests::PanicTask as ffi_helpers::task::Task>::run::h8451b1f564fbaaa6
[INFO] [stderr]                                at /opt/rustwide/workdir/src/task.rs:537
[INFO] [stderr]   15:     0x560072b3f839 - ffi_helpers::task::TaskHandle<T>::spawn::{{closure}}::{{closure}}::h0040d60c26000b87
[INFO] [stderr]                                at /opt/rustwide/workdir/src/task.rs:380
[INFO] [stderr]   16:     0x560072b49b77 - std::panicking::try::do_call::h4c646b296654977c
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stderr]   17:     0x560072b4c3cd - __rust_try
[INFO] [stderr]   18:     0x560072b49917 - std::panicking::try::hcf7872d66b4489e1
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stderr]   19:     0x560072b5b466 - std::panic::catch_unwind::he1dc6b967ba51b9d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stderr]   20:     0x560072b46831 - ffi_helpers::panic::catch_panic::h22657ca9bf805184
[INFO] [stderr]                                at /opt/rustwide/workdir/src/panic.rs:44
[INFO] [stderr]   21:     0x560072b3fb91 - ffi_helpers::task::TaskHandle<T>::spawn::{{closure}}::hca220e23370badb9
[INFO] [stderr]                                at /opt/rustwide/workdir/src/task.rs:380
[INFO] [stderr]   22:     0x560072b5b1d8 - std::sys_common::backtrace::__rust_begin_short_backtrace::h57f0fbdfbe1efad6
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]   23:     0x560072b596f5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h3932d7e6732b3219
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:458
[INFO] [stderr]   24:     0x560072b5b168 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h3e256ba474f3c1e9
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stderr]   25:     0x560072b49d62 - std::panicking::try::do_call::hf9905b9fdf0c7076
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stderr]   26:     0x560072b4c3cd - __rust_try
[INFO] [stderr]   27:     0x560072b4970d - std::panicking::try::h783a9743b980d749
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stderr]   28:     0x560072b5b438 - std::panic::catch_unwind::hc460ec6153f641c7
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stderr]   29:     0x560072b5921d - std::thread::Builder::spawn_unchecked::{{closure}}::h9cbf703d5cd584e6
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:457
[INFO] [stderr]   30:     0x560072b42f0e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h9f9c5babc3f482dc
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stderr]   31:     0x560072c8f9ca - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h670c50864ac2cb92
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   32:     0x560072c8f9ca - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h2511952749086d81
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   33:     0x560072c8f9ca - std::sys::unix::thread::Thread::new::thread_start::h5ad4ddffe24373a8
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys/unix/thread.rs:87
[INFO] [stderr]   34:     0x7f3a02af0609 - start_thread
[INFO] [stderr]   35:     0x7f3a029fc103 - clone
[INFO] [stderr]   36:                0x0 - <unknown>
[INFO] [stdout] test task::tests::task_can_catch_panic_messages ... ok
[INFO] [stdout] test panic::tests::able_to_catch_panics_and_recover_the_panic_message ... ok
[INFO] [stdout] test task::tests::spawn_a_task ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ffi_helpers
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/nullable.rs - null_pointer_check (line 111) ... ok
[INFO] [stdout] test src/nullable.rs - null_pointer_check (line 90) ... ok
[INFO] [stdout] test src/nullable.rs - null_pointer_check (line 71) ... ok
[INFO] [stdout] test src/split.rs - split::split_closure (line 8) ... ok
[INFO] [stdout] test src/error_handling.rs - error_handling (line 27) ... ok
[INFO] [stdout] test src/task.rs - task (line 37) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aa856b83e39d8090c89b7500778f83a39c2d23a5986d95549fada1a7fa2205ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa856b83e39d8090c89b7500778f83a39c2d23a5986d95549fada1a7fa2205ec", kill_on_drop: false }`
[INFO] [stdout] aa856b83e39d8090c89b7500778f83a39c2d23a5986d95549fada1a7fa2205ec
