[INFO] fetching crate pen-ffi 0.3.4...
[INFO] testing pen-ffi-0.3.4 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate pen-ffi 0.3.4 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate pen-ffi 0.3.4 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pen-ffi 0.3.4
[INFO] finished tweaking crates.io crate pen-ffi 0.3.4
[INFO] tweaked toml for crates.io crate pen-ffi 0.3.4 written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14bde7966c640b56dc6700f50700724ec2d02c67ce9b52955b0b17ca694d4680
[INFO] running `Command { std: "docker" "start" "-a" "14bde7966c640b56dc6700f50700724ec2d02c67ce9b52955b0b17ca694d4680", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14bde7966c640b56dc6700f50700724ec2d02c67ce9b52955b0b17ca694d4680", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14bde7966c640b56dc6700f50700724ec2d02c67ce9b52955b0b17ca694d4680", kill_on_drop: false }`
[INFO] [stdout] 14bde7966c640b56dc6700f50700724ec2d02c67ce9b52955b0b17ca694d4680
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4c08f673d62811707edfa3064d5d5f3c9c299b28f2f567a6b94366f9ae276bb
[INFO] running `Command { std: "docker" "start" "-a" "f4c08f673d62811707edfa3064d5d5f3c9c299b28f2f567a6b94366f9ae276bb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pen-ffi v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` block uses type `Context`, which is not FFI-safe
[INFO] [stdout]   --> src/cps/async_stack.rs:59:40
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn _test_async_stack_ffi_safety(_: *mut AsyncStack<'_, '_>);
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "f4c08f673d62811707edfa3064d5d5f3c9c299b28f2f567a6b94366f9ae276bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c08f673d62811707edfa3064d5d5f3c9c299b28f2f567a6b94366f9ae276bb", kill_on_drop: false }`
[INFO] [stdout] f4c08f673d62811707edfa3064d5d5f3c9c299b28f2f567a6b94366f9ae276bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88b2d89dc0232ee87c7fd423a6cb0d02686fa001643596af82e82dbbcbaffb5f
[INFO] running `Command { std: "docker" "start" "-a" "88b2d89dc0232ee87c7fd423a6cb0d02686fa001643596af82e82dbbcbaffb5f", kill_on_drop: false }`
[INFO] [stdout] warning: `extern` block uses type `Context`, which is not FFI-safe
[INFO] [stdout]   --> src/cps/async_stack.rs:59:40
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn _test_async_stack_ffi_safety(_: *mut AsyncStack<'_, '_>);
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pen-ffi v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `std::task::Context`, which is not FFI-safe
[INFO] [stdout]   --> src/cps/async_stack.rs:59:40
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn _test_async_stack_ffi_safety(_: *mut AsyncStack<'_, '_>);
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "88b2d89dc0232ee87c7fd423a6cb0d02686fa001643596af82e82dbbcbaffb5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b2d89dc0232ee87c7fd423a6cb0d02686fa001643596af82e82dbbcbaffb5f", kill_on_drop: false }`
[INFO] [stdout] 88b2d89dc0232ee87c7fd423a6cb0d02686fa001643596af82e82dbbcbaffb5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aafb685303592792318aa36555303da514a57641776a09565d6c39ec954cea25
[INFO] running `Command { std: "docker" "start" "-a" "aafb685303592792318aa36555303da514a57641776a09565d6c39ec954cea25", kill_on_drop: false }`
[INFO] [stderr] warning: `extern` block uses type `Context`, which is not FFI-safe
[INFO] [stderr]   --> src/cps/async_stack.rs:59:40
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn _test_async_stack_ffi_safety(_: *mut AsyncStack<'_, '_>);
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `pen-ffi` (lib) generated 1 warning
[INFO] [stderr] warning: `extern` block uses type `std::task::Context`, which is not FFI-safe
[INFO] [stderr]   --> src/cps/async_stack.rs:59:40
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn _test_async_stack_ffi_safety(_: *mut AsyncStack<'_, '_>);
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `pen-ffi` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pen_ffi-e48801dd4b2758fb)
[INFO] [stdout] 
[INFO] [stdout] running 48 tests
[INFO] [stdout] test any::tests::box_::as_inner ... ok
[INFO] [stderr]    Doc-tests pen-ffi
[INFO] [stdout] test any::tests::box_::clone_any ... ok
[INFO] [stdout] test any::tests::box_::drop_any ... ok
[INFO] [stdout] test any::tests::f64::clone_any ... ok
[INFO] [stdout] test any::tests::f64::drop_any ... ok
[INFO] [stdout] test any::tests::rc::as_inner ... ok
[INFO] [stdout] test any::tests::rc::clone_any ... ok
[INFO] [stdout] test any::tests::rc::drop_any ... ok
[INFO] [stdout] test arc::arc_block::tests::clone ... ok
[INFO] [stdout] test arc::arc_block::tests::create ... ok
[INFO] [stdout] test arc::arc_block::tests::create_empty ... ok
[INFO] [stdout] test arc::arc_block::tests::drop ... ok
[INFO] [stdout] test arc::arc_block::tests::drop_twice ... ok
[INFO] [stdout] test arc::arc_buffer::tests::clone ... ok
[INFO] [stdout] test arc::arc_buffer::tests::convert_from_string ... ok
[INFO] [stdout] test arc::arc_buffer::tests::convert_from_vec ... ok
[INFO] [stdout] test arc::arc_buffer::tests::create_buffer ... ok
[INFO] [stdout] test arc::arc_buffer::tests::create_empty ... ok
[INFO] [stdout] test arc::arc_buffer::tests::create_zero_sized_buffer ... ok
[INFO] [stdout] test arc::tests::clone ... ok
[INFO] [stdout] test arc::tests::clone_box ... ok
[INFO] [stdout] test arc::tests::create ... ok
[INFO] [stdout] test arc::tests::drop_box ... ok
[INFO] [stdout] test arc::tests::load_payload ... ok
[INFO] [stdout] test arc::tests::new_box ... ok
[INFO] [stdout] test arc::tests::zero_sized::clone ... ok
[INFO] [stdout] test arc::tests::zero_sized::create ... ok
[INFO] [stdout] test arc::tests::zero_sized::load_payload ... ok
[INFO] [stdout] test cps::async_stack::tests::push_f64 ... ok
[INFO] [stdout] test cps::async_stack::tests::wake ... ok
[INFO] [stdout] test cps::stack::tests::push_f32 ... ok
[INFO] [stdout] test cps::stack::tests::push_f64 ... ok
[INFO] [stdout] test cps::stack::tests::push_multiple_u8 ... ok
[INFO] [stdout] test cps::stack::tests::push_u8 ... ok
[INFO] [stdout] test extra::string_array::tests::string_array::clone ... ok
[INFO] [stdout] test extra::string_array::tests::string_array::drop_ ... ok
[INFO] [stdout] test extra::string_array::tests::string_array::get_element ... ok
[INFO] [stdout] test extra::string_array::tests::string_array_inner::drop_ ... ok
[INFO] [stdout] test extra::string_array::tests::string_array_inner::get_element ... ok
[INFO] [stdout] test extra::string_array::tests::string_array_inner::is_small_enough ... ok
[INFO] [stdout] test string::tests::join ... ok
[INFO] [stdout] test string::tests::join_empty ... ok
[INFO] [stdout] test string::tests::slice_into_empty ... ok
[INFO] [stdout] test string::tests::slice_into_whole ... ok
[INFO] [stdout] test string::tests::slice_last_with_emojis ... ok
[INFO] [stdout] test string::tests::slice_with_ascii ... ok
[INFO] [stdout] test string::tests::slice_with_emojis ... ok
[INFO] [stdout] test string::tests::slice_with_negative_index ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 48 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aafb685303592792318aa36555303da514a57641776a09565d6c39ec954cea25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aafb685303592792318aa36555303da514a57641776a09565d6c39ec954cea25", kill_on_drop: false }`
[INFO] [stdout] aafb685303592792318aa36555303da514a57641776a09565d6c39ec954cea25