[INFO] fetching crate libflo_api 0.1.2...
[INFO] testing libflo_api-0.1.2 against 1.47.0 for beta-1.48-1
[INFO] extracting crate libflo_api 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate libflo_api 0.1.2 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 libflo_api 0.1.2
[INFO] removed path dependency libflo from crates.io crate libflo_api 0.1.2
[INFO] removed path dependency libflo_dynamic_event from crates.io crate libflo_api 0.1.2
[INFO] removed path dependency libflo_error from crates.io crate libflo_api 0.1.2
[INFO] removed path dependency libflo_func from crates.io crate libflo_api 0.1.2
[INFO] removed path dependency libflo_module from crates.io crate libflo_api 0.1.2
[INFO] removed path dependency mut_static from crates.io crate libflo_api 0.1.2
[INFO] finished tweaking crates.io crate libflo_api 0.1.2
[INFO] tweaked toml for crates.io crate libflo_api 0.1.2 written to /workspace/builds/worker-7/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] [stderr]     Blocking waiting for file lock on package cache
[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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 979de3b8f6422f33d999e8566824780d79bf4b8961e61f2363f9125fd8db805f
[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" "979de3b8f6422f33d999e8566824780d79bf4b8961e61f2363f9125fd8db805f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "979de3b8f6422f33d999e8566824780d79bf4b8961e61f2363f9125fd8db805f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "979de3b8f6422f33d999e8566824780d79bf4b8961e61f2363f9125fd8db805f", kill_on_drop: false }`
[INFO] [stdout] 979de3b8f6422f33d999e8566824780d79bf4b8961e61f2363f9125fd8db805f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] 46d8d7eb4f0ef079da94600d26daaa2bc670a8765e3b40d01a835f9fa8ee1cf1
[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" "46d8d7eb4f0ef079da94600d26daaa2bc670a8765e3b40d01a835f9fa8ee1cf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling dtoa v0.2.2
[INFO] [stderr]    Compiling sharedlib v6.0.0
[INFO] [stderr]    Compiling syntex_pos v0.44.0
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling serde_json v0.8.6
[INFO] [stderr]    Compiling libflo_error v0.1.2
[INFO] [stderr]    Compiling mut_static v0.1.0
[INFO] [stderr]    Compiling syntex_errors v0.44.0
[INFO] [stderr]    Compiling syntex_syntax v0.44.1
[INFO] [stderr]    Compiling error-chain v0.5.0
[INFO] [stderr]    Compiling syntex v0.44.0
[INFO] [stderr]    Compiling aster v0.27.0
[INFO] [stderr]    Compiling serde_codegen_internals v0.8.9
[INFO] [stderr]    Compiling quasi v0.20.1
[INFO] [stderr]    Compiling quasi_codegen v0.20.0
[INFO] [stderr]    Compiling serde_codegen v0.8.9
[INFO] [stderr]    Compiling libflo_module v0.1.2
[INFO] [stderr]    Compiling libflo_func v0.1.2
[INFO] [stderr]    Compiling libflo_event v0.1.2
[INFO] [stderr]    Compiling libflo_dynamic_event v0.1.2
[INFO] [stderr]    Compiling libflo_api v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling libflo v0.1.2
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/libflo_api-144cfdf5be7b0fb9/out/serde_types.rs:20:29
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...                   try!(_serializer . serialize_struct (
[INFO] [stdout]    |                       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/libflo_api-144cfdf5be7b0fb9/out/serde_types.rs:22:25
[INFO] [stdout]    |
[INFO] [stdout] 22 |                         try!(_serializer . serialize_struct_elt (
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/libflo_api-144cfdf5be7b0fb9/out/serde_types.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 |                         try!(_serializer . serialize_struct_elt (
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/libflo_api-144cfdf5be7b0fb9/out/serde_types.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |                         try!(_serializer . serialize_struct_elt (
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/func/construct.rs:9:34
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub extern fn construct(libflo: &Any) -> FuncResult<()> {
[INFO] [stdout]   |                                  ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/static_libflo.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | / lazy_static! {
[INFO] [stdout] 6 | |     pub static ref STATIC_LIBFLO: MutStatic<Arc<Libflo>> = {
[INFO] [stdout] 7 | |         MutStatic::new()
[INFO] [stdout] 8 | |     };
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `dyn std::any::Any`, which is not FFI-safe
[INFO] [stdout]  --> src/func/construct.rs:9:33
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub extern fn construct(libflo: &Any) -> FuncResult<()> {
[INFO] [stdout]   |                                 ^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]   = note: trait objects have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<(), libflo_error::Error>`, which is not FFI-safe
[INFO] [stdout]  --> src/func/construct.rs:9:42
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub extern fn construct(libflo: &Any) -> FuncResult<()> {
[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<(), libflo_error::Error>`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub extern fn get() -> FuncResult<()> {
[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 `str`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get_file_from_submodule.rs:7:71
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub extern fn get_file_from_submodule(get_file_from_submodule_params: &str) -> FuncResult<String> {
[INFO] [stdout]   |                                                                       ^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `*const u8` and a length instead
[INFO] [stdout]   = note: string slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<std::string::String, libflo_error::Error>`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get_file_from_submodule.rs:7:80
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub extern fn get_file_from_submodule(get_file_from_submodule_params: &str) -> FuncResult<String> {
[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 `str`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get_file_from_submodules.rs:6:73
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub extern fn get_file_from_submodules(get_file_from_submodules_params: &str) -> FuncResult<String> {
[INFO] [stdout]   |                                                                         ^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `*const u8` and a length instead
[INFO] [stdout]   = note: string slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<std::string::String, libflo_error::Error>`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get_file_from_submodules.rs:6:82
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub extern fn get_file_from_submodules(get_file_from_submodules_params: &str) -> FuncResult<String> {
[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 `str`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get_modules_with_submodule.rs:6:56
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub extern fn get_modules_with_submodule(submodule_id: &str) -> FuncResult<String> {
[INFO] [stdout]   |                                                        ^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `*const u8` and a length instead
[INFO] [stdout]   = note: string slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<std::string::String, libflo_error::Error>`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get_modules_with_submodule.rs:6:65
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub extern fn get_modules_with_submodule(submodule_id: &str) -> FuncResult<String> {
[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: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "46d8d7eb4f0ef079da94600d26daaa2bc670a8765e3b40d01a835f9fa8ee1cf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46d8d7eb4f0ef079da94600d26daaa2bc670a8765e3b40d01a835f9fa8ee1cf1", kill_on_drop: false }`
[INFO] [stdout] 46d8d7eb4f0ef079da94600d26daaa2bc670a8765e3b40d01a835f9fa8ee1cf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 7203333fe2c4502ade9eab8d3219ded03dbd34c15fe6980596e4bf03fd6e0d6a
[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" "7203333fe2c4502ade9eab8d3219ded03dbd34c15fe6980596e4bf03fd6e0d6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libflo_api v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/libflo_api-144cfdf5be7b0fb9/out/serde_types.rs:20:29
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...                   try!(_serializer . serialize_struct (
[INFO] [stdout]    |                       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/libflo_api-144cfdf5be7b0fb9/out/serde_types.rs:22:25
[INFO] [stdout]    |
[INFO] [stdout] 22 |                         try!(_serializer . serialize_struct_elt (
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/libflo_api-144cfdf5be7b0fb9/out/serde_types.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 |                         try!(_serializer . serialize_struct_elt (
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/libflo_api-144cfdf5be7b0fb9/out/serde_types.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |                         try!(_serializer . serialize_struct_elt (
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/func/construct.rs:9:34
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub extern fn construct(libflo: &Any) -> FuncResult<()> {
[INFO] [stdout]   |                                  ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/static_libflo.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | / lazy_static! {
[INFO] [stdout] 6 | |     pub static ref STATIC_LIBFLO: MutStatic<Arc<Libflo>> = {
[INFO] [stdout] 7 | |         MutStatic::new()
[INFO] [stdout] 8 | |     };
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `dyn std::any::Any`, which is not FFI-safe
[INFO] [stdout]  --> src/func/construct.rs:9:33
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub extern fn construct(libflo: &Any) -> FuncResult<()> {
[INFO] [stdout]   |                                 ^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]   = note: trait objects have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<(), libflo_error::Error>`, which is not FFI-safe
[INFO] [stdout]  --> src/func/construct.rs:9:42
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub extern fn construct(libflo: &Any) -> FuncResult<()> {
[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<(), libflo_error::Error>`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub extern fn get() -> FuncResult<()> {
[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 `str`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get_file_from_submodule.rs:7:71
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub extern fn get_file_from_submodule(get_file_from_submodule_params: &str) -> FuncResult<String> {
[INFO] [stdout]   |                                                                       ^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `*const u8` and a length instead
[INFO] [stdout]   = note: string slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<std::string::String, libflo_error::Error>`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get_file_from_submodule.rs:7:80
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub extern fn get_file_from_submodule(get_file_from_submodule_params: &str) -> FuncResult<String> {
[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 `str`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get_file_from_submodules.rs:6:73
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub extern fn get_file_from_submodules(get_file_from_submodules_params: &str) -> FuncResult<String> {
[INFO] [stdout]   |                                                                         ^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `*const u8` and a length instead
[INFO] [stdout]   = note: string slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<std::string::String, libflo_error::Error>`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get_file_from_submodules.rs:6:82
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub extern fn get_file_from_submodules(get_file_from_submodules_params: &str) -> FuncResult<String> {
[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 `str`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get_modules_with_submodule.rs:6:56
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub extern fn get_modules_with_submodule(submodule_id: &str) -> FuncResult<String> {
[INFO] [stdout]   |                                                        ^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `*const u8` and a length instead
[INFO] [stdout]   = note: string slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<std::string::String, libflo_error::Error>`, which is not FFI-safe
[INFO] [stdout]  --> src/func/get_modules_with_submodule.rs:6:65
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub extern fn get_modules_with_submodule(submodule_id: &str) -> FuncResult<String> {
[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: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "7203333fe2c4502ade9eab8d3219ded03dbd34c15fe6980596e4bf03fd6e0d6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7203333fe2c4502ade9eab8d3219ded03dbd34c15fe6980596e4bf03fd6e0d6a", kill_on_drop: false }`
[INFO] [stdout] 7203333fe2c4502ade9eab8d3219ded03dbd34c15fe6980596e4bf03fd6e0d6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 82c25c0159cd2fd0ea047c4ebe0542538bc1ab910e2486dba31e173ee21f535a
[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" "82c25c0159cd2fd0ea047c4ebe0542538bc1ab910e2486dba31e173ee21f535a", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> /opt/rustwide/target/debug/build/libflo_api-144cfdf5be7b0fb9/out/serde_types.rs:20:29
[INFO] [stderr]    |
[INFO] [stderr] 20 | ...                   try!(_serializer . serialize_struct (
[INFO] [stderr]    |                       ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> /opt/rustwide/target/debug/build/libflo_api-144cfdf5be7b0fb9/out/serde_types.rs:22:25
[INFO] [stderr]    |
[INFO] [stderr] 22 |                         try!(_serializer . serialize_struct_elt (
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> /opt/rustwide/target/debug/build/libflo_api-144cfdf5be7b0fb9/out/serde_types.rs:25:25
[INFO] [stderr]    |
[INFO] [stderr] 25 |                         try!(_serializer . serialize_struct_elt (
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> /opt/rustwide/target/debug/build/libflo_api-144cfdf5be7b0fb9/out/serde_types.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |                         try!(_serializer . serialize_struct_elt (
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/func/construct.rs:9:34
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub extern fn construct(libflo: &Any) -> FuncResult<()> {
[INFO] [stderr]   |                                  ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]  --> src/static_libflo.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / lazy_static! {
[INFO] [stderr] 6 | |     pub static ref STATIC_LIBFLO: MutStatic<Arc<Libflo>> = {
[INFO] [stderr] 7 | |         MutStatic::new()
[INFO] [stderr] 8 | |     };
[INFO] [stderr] 9 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `dyn std::any::Any`, which is not FFI-safe
[INFO] [stderr]  --> src/func/construct.rs:9:33
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub extern fn construct(libflo: &Any) -> FuncResult<()> {
[INFO] [stderr]   |                                 ^^^^ not FFI-safe
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]   = note: trait objects have no C equivalent
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::result::Result<(), libflo_error::Error>`, which is not FFI-safe
[INFO] [stderr]  --> src/func/construct.rs:9:42
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub extern fn construct(libflo: &Any) -> FuncResult<()> {
[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<(), libflo_error::Error>`, which is not FFI-safe
[INFO] [stderr]  --> src/func/get.rs:7:24
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub extern fn get() -> FuncResult<()> {
[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 `str`, which is not FFI-safe
[INFO] [stderr]  --> src/func/get_file_from_submodule.rs:7:71
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub extern fn get_file_from_submodule(get_file_from_submodule_params: &str) -> FuncResult<String> {
[INFO] [stderr]   |                                                                       ^^^^ not FFI-safe
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider using `*const u8` and a length instead
[INFO] [stderr]   = note: string slices have no C equivalent
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::result::Result<std::string::String, libflo_error::Error>`, which is not FFI-safe
[INFO] [stderr]  --> src/func/get_file_from_submodule.rs:7:80
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub extern fn get_file_from_submodule(get_file_from_submodule_params: &str) -> FuncResult<String> {
[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 `str`, which is not FFI-safe
[INFO] [stderr]  --> src/func/get_file_from_submodules.rs:6:73
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub extern fn get_file_from_submodules(get_file_from_submodules_params: &str) -> FuncResult<String> {
[INFO] [stderr]   |                                                                         ^^^^ not FFI-safe
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider using `*const u8` and a length instead
[INFO] [stderr]   = note: string slices have no C equivalent
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::result::Result<std::string::String, libflo_error::Error>`, which is not FFI-safe
[INFO] [stderr]  --> src/func/get_file_from_submodules.rs:6:82
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub extern fn get_file_from_submodules(get_file_from_submodules_params: &str) -> FuncResult<String> {
[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 `str`, which is not FFI-safe
[INFO] [stderr]  --> src/func/get_modules_with_submodule.rs:6:56
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub extern fn get_modules_with_submodule(submodule_id: &str) -> FuncResult<String> {
[INFO] [stderr]   |                                                        ^^^^ not FFI-safe
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider using `*const u8` and a length instead
[INFO] [stderr]   = note: string slices have no C equivalent
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::result::Result<std::string::String, libflo_error::Error>`, which is not FFI-safe
[INFO] [stderr]  --> src/func/get_modules_with_submodule.rs:6:65
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub extern fn get_modules_with_submodule(submodule_id: &str) -> FuncResult<String> {
[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: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/libflo_api-42e30459db506888
[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" "82c25c0159cd2fd0ea047c4ebe0542538bc1ab910e2486dba31e173ee21f535a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82c25c0159cd2fd0ea047c4ebe0542538bc1ab910e2486dba31e173ee21f535a", kill_on_drop: false }`
[INFO] [stdout] 82c25c0159cd2fd0ea047c4ebe0542538bc1ab910e2486dba31e173ee21f535a
