[INFO] fetching crate nature_integrate_test_converter 0.0.2...
[INFO] checking nature_integrate_test_converter-0.0.2 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate nature_integrate_test_converter 0.0.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate nature_integrate_test_converter 0.0.2 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
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[INFO] started tweaking crates.io crate nature_integrate_test_converter 0.0.2
[INFO] finished tweaking crates.io crate nature_integrate_test_converter 0.0.2
[INFO] tweaked toml for crates.io crate nature_integrate_test_converter 0.0.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
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[INFO] [stderr]     Checking nature_integrate_test_converter v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `nature_common::ConverterReturned`, which is not FFI-safe
[INFO] [stdout]  --> src/lib.rs:8:55
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub extern fn rtn_none(_para: &ConverterParameter) -> ConverterReturned {
[INFO] [stdout]   |                                                       ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]   = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]   = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `nature_common::ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:15:64
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub extern fn rtn_logical_error(_para: &ConverterParameter) -> ConverterReturned {
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]    = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `nature_common::ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:22:54
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub extern fn rtn_one(_para: &ConverterParameter) -> ConverterReturned {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]    = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `nature_common::ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:31:54
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub extern fn rtn_tow(_para: &ConverterParameter) -> ConverterReturned {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]    = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `nature_common::ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:42:68
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub extern fn rtn_environment_error(_para: &ConverterParameter) -> ConverterReturned {
[INFO] [stdout]    |                                                                    ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]    = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `nature_common::ConverterReturned`, which is not FFI-safe
[INFO] [stdout]  --> src/lib.rs:8:55
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub extern fn rtn_none(_para: &ConverterParameter) -> ConverterReturned {
[INFO] [stdout]   |                                                       ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]   = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]   = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `nature_common::ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:15:64
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub extern fn rtn_logical_error(_para: &ConverterParameter) -> ConverterReturned {
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]    = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `nature_common::ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:22:54
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub extern fn rtn_one(_para: &ConverterParameter) -> ConverterReturned {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]    = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `nature_common::ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:31:54
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub extern fn rtn_tow(_para: &ConverterParameter) -> ConverterReturned {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]    = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `nature_common::ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:42:68
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub extern fn rtn_environment_error(_para: &ConverterParameter) -> ConverterReturned {
[INFO] [stdout]    |                                                                    ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]    = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.17s
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[INFO] running `Command { std: "docker" "rm" "-f" "b7f73c9167778dd15714b215fe2a4c002f93477eafa30522192ba4a8c009f7da", kill_on_drop: false }`
[INFO] [stdout] b7f73c9167778dd15714b215fe2a4c002f93477eafa30522192ba4a8c009f7da