[INFO] fetching crate nature_integrate_test_converter 0.0.2...
[INFO] checking nature_integrate_test_converter-0.0.2 against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565
[INFO] extracting crate nature_integrate_test_converter 0.0.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate nature_integrate_test_converter 0.0.2 on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
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[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 6cd100b15bce373cf1dc53c105fba3e5340291bed6f20b0b77939227840203e9
[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" "6cd100b15bce373cf1dc53c105fba3e5340291bed6f20b0b77939227840203e9", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "6cd100b15bce373cf1dc53c105fba3e5340291bed6f20b0b77939227840203e9", kill_on_drop: false }`
[INFO] [stdout] 6cd100b15bce373cf1dc53c105fba3e5340291bed6f20b0b77939227840203e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 584efd7794c0c43814aa3eba4ee1b8d2edb84328b5d6658fcc4003699813c398
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
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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: `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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 40s
[INFO] running `Command { std: "docker" "inspect" "584efd7794c0c43814aa3eba4ee1b8d2edb84328b5d6658fcc4003699813c398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "584efd7794c0c43814aa3eba4ee1b8d2edb84328b5d6658fcc4003699813c398", kill_on_drop: false }`
[INFO] [stdout] 584efd7794c0c43814aa3eba4ee1b8d2edb84328b5d6658fcc4003699813c398