[INFO] fetching crate uniffi_core 0.25.2...
[INFO] checking uniffi_core-0.25.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate uniffi_core 0.25.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate uniffi_core 0.25.2 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uniffi_core 0.25.2
[INFO] finished tweaking crates.io crate uniffi_core 0.25.2
[INFO] tweaked toml for crates.io crate uniffi_core 0.25.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 65 packages
[INFO] [stderr]       Adding generator v0.7.5 (latest: v0.8.1)
[INFO] [stderr]       Adding loom v0.5.6 (latest: v0.7.1)
[INFO] [stderr]       Adding nu-ansi-term v0.46.0 (latest: v0.50.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding regex-automata v0.1.10 (latest: v0.4.6)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.3)
[INFO] [stderr]       Adding windows v0.48.0 (latest: v0.54.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded oneshot v0.1.6
[INFO] [stderr]   Downloaded async-compat v0.2.3
[INFO] [stderr]   Downloaded generator v0.7.5
[INFO] [stderr]   Downloaded loom v0.5.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12b110e729962cd9588c9141c30b0f53895a63a49060256fd42a9a5afd11dd16
[INFO] running `Command { std: "docker" "start" "-a" "12b110e729962cd9588c9141c30b0f53895a63a49060256fd42a9a5afd11dd16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12b110e729962cd9588c9141c30b0f53895a63a49060256fd42a9a5afd11dd16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12b110e729962cd9588c9141c30b0f53895a63a49060256fd42a9a5afd11dd16", kill_on_drop: false }`
[INFO] [stdout] 12b110e729962cd9588c9141c30b0f53895a63a49060256fd42a9a5afd11dd16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d19044823aeb2c85f0bc71e8f75e58311d4ee28eb02e385ae8152eed0aeda7a6
[INFO] running `Command { std: "docker" "start" "-a" "d19044823aeb2c85f0bc71e8f75e58311d4ee28eb02e385ae8152eed0aeda7a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]     Checking oneshot v0.1.6
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking uniffi_core v0.25.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]   --> src/ffi_converter_impls.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     convert::TryFrom,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryFrom` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]   --> src/ffi_converter_impls.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     convert::TryFrom,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryFrom` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:449:1
[INFO] [stdout]     |
[INFO] [stdout] 449 | derive_ffi_traits!(blanket u8);
[INFO] [stdout]     | ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:450:1
[INFO] [stdout]     |
[INFO] [stdout] 450 | derive_ffi_traits!(blanket i8);
[INFO] [stdout]     | ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:451:1
[INFO] [stdout]     |
[INFO] [stdout] 451 | derive_ffi_traits!(blanket u16);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:452:1
[INFO] [stdout]     |
[INFO] [stdout] 452 | derive_ffi_traits!(blanket i16);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:453:1
[INFO] [stdout]     |
[INFO] [stdout] 453 | derive_ffi_traits!(blanket u32);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:454:1
[INFO] [stdout]     |
[INFO] [stdout] 454 | derive_ffi_traits!(blanket i32);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:455:1
[INFO] [stdout]     |
[INFO] [stdout] 455 | derive_ffi_traits!(blanket u64);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:456:1
[INFO] [stdout]     |
[INFO] [stdout] 456 | derive_ffi_traits!(blanket i64);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:457:1
[INFO] [stdout]     |
[INFO] [stdout] 457 | derive_ffi_traits!(blanket f32);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:458:1
[INFO] [stdout]     |
[INFO] [stdout] 458 | derive_ffi_traits!(blanket f64);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:459:1
[INFO] [stdout]     |
[INFO] [stdout] 459 | derive_ffi_traits!(blanket bool);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:460:1
[INFO] [stdout]     |
[INFO] [stdout] 460 | derive_ffi_traits!(blanket String);
[INFO] [stdout]     | ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:461:1
[INFO] [stdout]     |
[INFO] [stdout] 461 | derive_ffi_traits!(blanket Duration);
[INFO] [stdout]     | ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:462:1
[INFO] [stdout]     |
[INFO] [stdout] 462 | derive_ffi_traits!(blanket SystemTime);
[INFO] [stdout]     | -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:463:1
[INFO] [stdout]     |
[INFO] [stdout] 463 | derive_ffi_traits!(blanket ForeignExecutor);
[INFO] [stdout]     | ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 323 |     derive_ffi_traits!(blanket TestError);
[INFO] [stdout]     |     ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:449:1
[INFO] [stdout]     |
[INFO] [stdout] 449 | derive_ffi_traits!(blanket u8);
[INFO] [stdout]     | ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:450:1
[INFO] [stdout]     |
[INFO] [stdout] 450 | derive_ffi_traits!(blanket i8);
[INFO] [stdout]     | ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:451:1
[INFO] [stdout]     |
[INFO] [stdout] 451 | derive_ffi_traits!(blanket u16);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:452:1
[INFO] [stdout]     |
[INFO] [stdout] 452 | derive_ffi_traits!(blanket i16);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:453:1
[INFO] [stdout]     |
[INFO] [stdout] 453 | derive_ffi_traits!(blanket u32);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:454:1
[INFO] [stdout]     |
[INFO] [stdout] 454 | derive_ffi_traits!(blanket i32);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:455:1
[INFO] [stdout]     |
[INFO] [stdout] 455 | derive_ffi_traits!(blanket u64);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:456:1
[INFO] [stdout]     |
[INFO] [stdout] 456 | derive_ffi_traits!(blanket i64);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:457:1
[INFO] [stdout]     |
[INFO] [stdout] 457 | derive_ffi_traits!(blanket f32);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:458:1
[INFO] [stdout]     |
[INFO] [stdout] 458 | derive_ffi_traits!(blanket f64);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:459:1
[INFO] [stdout]     |
[INFO] [stdout] 459 | derive_ffi_traits!(blanket bool);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:460:1
[INFO] [stdout]     |
[INFO] [stdout] 460 | derive_ffi_traits!(blanket String);
[INFO] [stdout]     | ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:461:1
[INFO] [stdout]     |
[INFO] [stdout] 461 | derive_ffi_traits!(blanket Duration);
[INFO] [stdout]     | ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:462:1
[INFO] [stdout]     |
[INFO] [stdout] 462 | derive_ffi_traits!(blanket SystemTime);
[INFO] [stdout]     | -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_converter` is never used
[INFO] [stdout]    --> src/ffi/callbackinterface.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 293 |         pub trait GetConverterSpecialized {
[INFO] [stdout]     |                   ----------------------- method in this trait
[INFO] [stdout] 294 |             fn get_converter(&self) -> $crate::UnexpectedUniFFICallbackErrorConverterSpecialized;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ffi_converter_impls.rs:463:1
[INFO] [stdout]     |
[INFO] [stdout] 463 | derive_ffi_traits!(blanket ForeignExecutor);
[INFO] [stdout]     | ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::convert_unexpected_error` which comes from the expansion of the macro `derive_ffi_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.34s
[INFO] running `Command { std: "docker" "inspect" "d19044823aeb2c85f0bc71e8f75e58311d4ee28eb02e385ae8152eed0aeda7a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d19044823aeb2c85f0bc71e8f75e58311d4ee28eb02e385ae8152eed0aeda7a6", kill_on_drop: false }`
[INFO] [stdout] d19044823aeb2c85f0bc71e8f75e58311d4ee28eb02e385ae8152eed0aeda7a6