[INFO] fetching crate nature_demo_executor 0.15.0...
[INFO] testing nature_demo_executor-0.15.0 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate nature_demo_executor 0.15.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate nature_demo_executor 0.15.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nature_demo_executor 0.15.0
[INFO] finished tweaking crates.io crate nature_demo_executor 0.15.0
[INFO] tweaked toml for crates.io crate nature_demo_executor 0.15.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f13dd1fb95a077eacef8a562f9cc9ba634eb7540f12fb4c92112dc1ad8152c90
[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" "f13dd1fb95a077eacef8a562f9cc9ba634eb7540f12fb4c92112dc1ad8152c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f13dd1fb95a077eacef8a562f9cc9ba634eb7540f12fb4c92112dc1ad8152c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f13dd1fb95a077eacef8a562f9cc9ba634eb7540f12fb4c92112dc1ad8152c90", kill_on_drop: false }`
[INFO] [stdout] f13dd1fb95a077eacef8a562f9cc9ba634eb7540f12fb4c92112dc1ad8152c90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2020-10-09" "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] 2c20962e63f05d12d434e1d4b06ba5c16995fb61768d67f35edf9bfc1f5c2209
[INFO] running `Command { std: "docker" "start" "-a" "2c20962e63f05d12d434e1d4b06ba5c16995fb61768d67f35edf9bfc1f5c2209", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.44
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[INFO] [stderr]    Compiling trust-dns-proto v0.18.0-alpha.2
[INFO] [stderr]    Compiling actix-utils v1.0.6
[INFO] [stderr]    Compiling trust-dns-resolver v0.18.0-alpha.2
[INFO] [stderr]    Compiling actix-connect v1.0.2
[INFO] [stderr]    Compiling hyper v0.13.8
[INFO] [stderr]    Compiling actix-http v1.0.1
[INFO] [stderr]    Compiling actix v0.9.0
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling reqwest v0.10.8
[INFO] [stderr]    Compiling nature_common v0.15.0
[INFO] [stderr]    Compiling nature_demo_common v0.15.0
[INFO] [stderr]    Compiling nature_demo_executor v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]  --> src/emall.rs:9:62
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub extern fn order_receivable(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 `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/emall.rs:32:55
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub extern fn pay_count(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 `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/emall.rs:67:67
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub extern fn stock_out_application(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 `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/emall.rs:77:56
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub extern fn go_express(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 `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/emall.rs:90:56
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub extern fn auto_sign(_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 `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]    --> src/emall.rs:101:60
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub extern fn multi_delivery(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 `std::result::Result<Vec<Instance>, NatureError>`, which is not FFI-safe
[INFO] [stdout]  --> src/score.rs:8:51
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub extern fn name_to_id(para: &Vec<Instance>) -> Result<Vec<Instance>> {
[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 `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]  --> src/sale.rs:7:59
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub extern fn order_to_item(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 `std::result::Result<Instance, NatureError>`, which is not FFI-safe
[INFO] [stdout]   --> src/sale.rs:40:46
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub extern fn order2item(para: &Instance) -> Result<Instance> {
[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: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 18s
[INFO] running `Command { std: "docker" "inspect" "2c20962e63f05d12d434e1d4b06ba5c16995fb61768d67f35edf9bfc1f5c2209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c20962e63f05d12d434e1d4b06ba5c16995fb61768d67f35edf9bfc1f5c2209", kill_on_drop: false }`
[INFO] [stdout] 2c20962e63f05d12d434e1d4b06ba5c16995fb61768d67f35edf9bfc1f5c2209
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6929d2cc752f4c950613be8819adfe8d036e7e8a3a13b1522f4ec10a7a02c1bb
[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" "6929d2cc752f4c950613be8819adfe8d036e7e8a3a13b1522f4ec10a7a02c1bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling nature_demo_executor v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]  --> src/emall.rs:9:62
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub extern fn order_receivable(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 `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/emall.rs:32:55
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub extern fn pay_count(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 `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/emall.rs:67:67
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub extern fn stock_out_application(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 `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/emall.rs:77:56
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub extern fn go_express(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 `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]   --> src/emall.rs:90:56
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub extern fn auto_sign(_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 `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]    --> src/emall.rs:101:60
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub extern fn multi_delivery(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 `std::result::Result<Vec<Instance>, NatureError>`, which is not FFI-safe
[INFO] [stdout]  --> src/score.rs:8:51
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub extern fn name_to_id(para: &Vec<Instance>) -> Result<Vec<Instance>> {
[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 `ConverterReturned`, which is not FFI-safe
[INFO] [stdout]  --> src/sale.rs:7:59
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub extern fn order_to_item(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 `std::result::Result<Instance, NatureError>`, which is not FFI-safe
[INFO] [stdout]   --> src/sale.rs:40:46
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub extern fn order2item(para: &Instance) -> Result<Instance> {
[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: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.90s
[INFO] running `Command { std: "docker" "inspect" "6929d2cc752f4c950613be8819adfe8d036e7e8a3a13b1522f4ec10a7a02c1bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6929d2cc752f4c950613be8819adfe8d036e7e8a3a13b1522f4ec10a7a02c1bb", kill_on_drop: false }`
[INFO] [stdout] 6929d2cc752f4c950613be8819adfe8d036e7e8a3a13b1522f4ec10a7a02c1bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2020-10-09" "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] c86c5ec65f2c197e37e5c7ef2fff3f83a8471c0e06ecb671ec31b869b2d2b668
[INFO] running `Command { std: "docker" "start" "-a" "c86c5ec65f2c197e37e5c7ef2fff3f83a8471c0e06ecb671ec31b869b2d2b668", kill_on_drop: false }`
[INFO] [stderr] warning: `extern` fn uses type `ConverterReturned`, which is not FFI-safe
[INFO] [stderr]  --> src/emall.rs:9:62
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub extern fn order_receivable(para: &ConverterParameter) -> ConverterReturned {
[INFO] [stderr]   |                                                              ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]   = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]   = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `ConverterReturned`, which is not FFI-safe
[INFO] [stderr]   --> src/emall.rs:32:55
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub extern fn pay_count(para: &ConverterParameter) -> ConverterReturned {
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]    = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `ConverterReturned`, which is not FFI-safe
[INFO] [stderr]   --> src/emall.rs:67:67
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub extern fn stock_out_application(para: &ConverterParameter) -> ConverterReturned {
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]    = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `ConverterReturned`, which is not FFI-safe
[INFO] [stderr]   --> src/emall.rs:77:56
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub extern fn go_express(para: &ConverterParameter) -> ConverterReturned {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]    = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `ConverterReturned`, which is not FFI-safe
[INFO] [stderr]   --> src/emall.rs:90:56
[INFO] [stderr]    |
[INFO] [stderr] 90 | pub extern fn auto_sign(_para: &ConverterParameter) -> ConverterReturned {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]    = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `ConverterReturned`, which is not FFI-safe
[INFO] [stderr]    --> src/emall.rs:101:60
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub extern fn multi_delivery(para: &ConverterParameter) -> ConverterReturned {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]     = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::result::Result<Vec<Instance>, NatureError>`, which is not FFI-safe
[INFO] [stderr]  --> src/score.rs:8:51
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub extern fn name_to_id(para: &Vec<Instance>) -> Result<Vec<Instance>> {
[INFO] [stderr]   |                                                   ^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]   = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `ConverterReturned`, which is not FFI-safe
[INFO] [stderr]  --> src/sale.rs:7:59
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub extern fn order_to_item(para: &ConverterParameter) -> ConverterReturned {
[INFO] [stderr]   |                                                           ^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]   = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::result::Result<Instance, NatureError>`, which is not FFI-safe
[INFO] [stderr]   --> src/sale.rs:40:46
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub extern fn order2item(para: &Instance) -> Result<Instance> {
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]    = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/nature_demo_executor-01f5d92393f2f42c
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c86c5ec65f2c197e37e5c7ef2fff3f83a8471c0e06ecb671ec31b869b2d2b668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c86c5ec65f2c197e37e5c7ef2fff3f83a8471c0e06ecb671ec31b869b2d2b668", kill_on_drop: false }`
[INFO] [stdout] c86c5ec65f2c197e37e5c7ef2fff3f83a8471c0e06ecb671ec31b869b2d2b668
