[INFO] cloning repository https://github.com/retrokiller543/interoptopus_custom_c_backend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/retrokiller543/interoptopus_custom_c_backend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fretrokiller543%2Finteroptopus_custom_c_backend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fretrokiller543%2Finteroptopus_custom_c_backend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 31a7314bfdecc25890f5b2dafbde60233d618d47
[INFO] testing retrokiller543/interoptopus_custom_c_backend against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fretrokiller543%2Finteroptopus_custom_c_backend" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/retrokiller543/interoptopus_custom_c_backend
[INFO] finished tweaking git repo https://github.com/retrokiller543/interoptopus_custom_c_backend
[INFO] tweaked toml for git repo https://github.com/retrokiller543/interoptopus_custom_c_backend written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/retrokiller543/interoptopus_custom_c_backend on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/retrokiller543/interoptopus_custom_c_backend already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a0ae4ff893380f2b5745c633172e7a91b19569da737fec0c3da54505548a461
[INFO] running `Command { std: "docker" "start" "-a" "7a0ae4ff893380f2b5745c633172e7a91b19569da737fec0c3da54505548a461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a0ae4ff893380f2b5745c633172e7a91b19569da737fec0c3da54505548a461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a0ae4ff893380f2b5745c633172e7a91b19569da737fec0c3da54505548a461", kill_on_drop: false }`
[INFO] [stdout] 7a0ae4ff893380f2b5745c633172e7a91b19569da737fec0c3da54505548a461
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d723324392a3349cc98d2c5aa87cd67de2ff100fcf84f401e5604b1cfd9ce47
[INFO] running `Command { std: "docker" "start" "-a" "2d723324392a3349cc98d2c5aa87cd67de2ff100fcf84f401e5604b1cfd9ce47", kill_on_drop: false }`
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling regex v1.10.5
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling interoptopus_proc v0.14.23
[INFO] [stderr]    Compiling interoptopus v0.14.23
[INFO] [stderr]    Compiling interoptopus_custom_c_backend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Helper` is never constructed
[INFO] [stdout]    --> src/writer.rs:672:12
[INFO] [stdout]     |
[INFO] [stdout] 672 | pub struct Helper<'a> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_common_service_method_overload` is never used
[INFO] [stdout]    --> src/writer.rs:678:4
[INFO] [stdout]     |
[INFO] [stdout] 678 | fn write_common_service_method_overload<FPatternMap: Fn(&Helper, &Parameter) -> String>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.26s
[INFO] running `Command { std: "docker" "inspect" "2d723324392a3349cc98d2c5aa87cd67de2ff100fcf84f401e5604b1cfd9ce47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d723324392a3349cc98d2c5aa87cd67de2ff100fcf84f401e5604b1cfd9ce47", kill_on_drop: false }`
[INFO] [stdout] 2d723324392a3349cc98d2c5aa87cd67de2ff100fcf84f401e5604b1cfd9ce47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0d445c699646bfa9ba1898989f8678671e7aaf567d261d9f2ca857d1db8aa43
[INFO] running `Command { std: "docker" "start" "-a" "f0d445c699646bfa9ba1898989f8678671e7aaf567d261d9f2ca857d1db8aa43", kill_on_drop: false }`
[INFO] [stderr]    Compiling interoptopus_reference_project v0.14.24 (/opt/rustwide/workdir/reference_project)
[INFO] [stdout] warning: struct `Helper` is never constructed
[INFO] [stdout]    --> src/writer.rs:672:12
[INFO] [stdout]     |
[INFO] [stdout] 672 | pub struct Helper<'a> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_common_service_method_overload` is never used
[INFO] [stdout]    --> src/writer.rs:678:4
[INFO] [stdout]     |
[INFO] [stdout] 678 | fn write_common_service_method_overload<FPatternMap: Fn(&Helper, &Parameter) -> String>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> reference_project/src/patterns/service.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn return_slice(&mut self) -> FFISlice<u32> {
[INFO] [stdout]     |                         ^^^^^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn return_slice(&mut self) -> FFISlice<'_, u32> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> reference_project/src/patterns/service.rs:117:29
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn return_slice_mut(&mut self) -> FFISliceMut<u32> {
[INFO] [stdout]     |                             ^^^^^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn return_slice_mut(&mut self) -> FFISliceMut<'_, u32> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> reference_project/src/patterns/service.rs:123:26
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn return_string(&mut self) -> AsciiPointer {
[INFO] [stdout]     |                          ^^^^^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn return_string(&mut self) -> AsciiPointer<'_> {
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> reference_project/src/patterns/service.rs:20:6
[INFO] [stdout]     |
[INFO] [stdout]  20 |   impl SimpleService {
[INFO] [stdout]     |  ______^
[INFO] [stdout]  21 | |     /// The constructor must return a `Result<Self, Error>`.
[INFO] [stdout]  22 | |     #[ffi_service_ctor]
[INFO] [stdout]  23 | |     pub fn new_with(some_value: u32) -> Result<Self, Error> {
[INFO] [stdout] ...   |
[INFO] [stdout] 109 | |     #[ffi_service_method(on_panic = "return_default")]
[INFO] [stdout] 110 | |     pub fn return_slice(&mut self) -> FFISlice<u32> {
[INFO] [stdout]     | |                         ^             ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     | |_________________________|
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn return_slice(&mut self) -> FFISlice<'_, u32> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> reference_project/src/patterns/service.rs:20:6
[INFO] [stdout]     |
[INFO] [stdout]  20 |   impl SimpleService {
[INFO] [stdout]     |  ______^
[INFO] [stdout]  21 | |     /// The constructor must return a `Result<Self, Error>`.
[INFO] [stdout]  22 | |     #[ffi_service_ctor]
[INFO] [stdout]  23 | |     pub fn new_with(some_value: u32) -> Result<Self, Error> {
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |     #[ffi_service_method(on_panic = "return_default")]
[INFO] [stdout] 117 | |     pub fn return_slice_mut(&mut self) -> FFISliceMut<u32> {
[INFO] [stdout]     | |                             ^             ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     | |_____________________________|
[INFO] [stdout]     |                               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn return_slice_mut(&mut self) -> FFISliceMut<'_, u32> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> reference_project/src/patterns/service.rs:20:6
[INFO] [stdout]     |
[INFO] [stdout]  20 |   impl SimpleService {
[INFO] [stdout]     |  ______^
[INFO] [stdout]  21 | |     /// The constructor must return a `Result<Self, Error>`.
[INFO] [stdout]  22 | |     #[ffi_service_ctor]
[INFO] [stdout]  23 | |     pub fn new_with(some_value: u32) -> Result<Self, Error> {
[INFO] [stdout] ...   |
[INFO] [stdout] 122 | |     #[ffi_service_method(on_panic = "undefined_behavior")]
[INFO] [stdout] 123 | |     pub fn return_string(&mut self) -> AsciiPointer {
[INFO] [stdout]     | |                          ^             ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     | |__________________________|
[INFO] [stdout]     |                            the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn return_string(&mut self) -> AsciiPointer<'_> {
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling interoptopus_custom_c_backend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Helper` is never constructed
[INFO] [stdout]    --> src/writer.rs:672:12
[INFO] [stdout]     |
[INFO] [stdout] 672 | pub struct Helper<'a> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_common_service_method_overload` is never used
[INFO] [stdout]    --> src/writer.rs:678:4
[INFO] [stdout]     |
[INFO] [stdout] 678 | fn write_common_service_method_overload<FPatternMap: Fn(&Helper, &Parameter) -> String>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `Command { std: "docker" "inspect" "f0d445c699646bfa9ba1898989f8678671e7aaf567d261d9f2ca857d1db8aa43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0d445c699646bfa9ba1898989f8678671e7aaf567d261d9f2ca857d1db8aa43", kill_on_drop: false }`
[INFO] [stdout] f0d445c699646bfa9ba1898989f8678671e7aaf567d261d9f2ca857d1db8aa43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] be6242d5ee0cd267b5a4f414cbf7aebceae6d0cc8d057f1640997c13b4555563
[INFO] running `Command { std: "docker" "start" "-a" "be6242d5ee0cd267b5a4f414cbf7aebceae6d0cc8d057f1640997c13b4555563", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> reference_project/src/patterns/service.rs:110:25
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn return_slice(&mut self) -> FFISlice<u32> {
[INFO] [stderr]     |                         ^^^^^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn return_slice(&mut self) -> FFISlice<'_, u32> {
[INFO] [stderr]     |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> reference_project/src/patterns/service.rs:117:29
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn return_slice_mut(&mut self) -> FFISliceMut<u32> {
[INFO] [stderr]     |                             ^^^^^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn return_slice_mut(&mut self) -> FFISliceMut<'_, u32> {
[INFO] [stderr]     |                                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> reference_project/src/patterns/service.rs:123:26
[INFO] [stderr]     |
[INFO] [stderr] 123 |     pub fn return_string(&mut self) -> AsciiPointer {
[INFO] [stderr]     |                          ^^^^^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 123 |     pub fn return_string(&mut self) -> AsciiPointer<'_> {
[INFO] [stderr]     |                                                    ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> reference_project/src/patterns/service.rs:20:6
[INFO] [stderr]     |
[INFO] [stderr]  20 |   impl SimpleService {
[INFO] [stderr]     |  ______^
[INFO] [stderr]  21 | |     /// The constructor must return a `Result<Self, Error>`.
[INFO] [stderr]  22 | |     #[ffi_service_ctor]
[INFO] [stderr]  23 | |     pub fn new_with(some_value: u32) -> Result<Self, Error> {
[INFO] [stderr] ...   |
[INFO] [stderr] 109 | |     #[ffi_service_method(on_panic = "return_default")]
[INFO] [stderr] 110 | |     pub fn return_slice(&mut self) -> FFISlice<u32> {
[INFO] [stderr]     | |                         ^             ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     | |_________________________|
[INFO] [stderr]     |                           the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn return_slice(&mut self) -> FFISlice<'_, u32> {
[INFO] [stderr]     |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> reference_project/src/patterns/service.rs:20:6
[INFO] [stderr]     |
[INFO] [stderr]  20 |   impl SimpleService {
[INFO] [stderr]     |  ______^
[INFO] [stderr]  21 | |     /// The constructor must return a `Result<Self, Error>`.
[INFO] [stderr]  22 | |     #[ffi_service_ctor]
[INFO] [stderr]  23 | |     pub fn new_with(some_value: u32) -> Result<Self, Error> {
[INFO] [stderr] ...   |
[INFO] [stderr] 116 | |     #[ffi_service_method(on_panic = "return_default")]
[INFO] [stderr] 117 | |     pub fn return_slice_mut(&mut self) -> FFISliceMut<u32> {
[INFO] [stderr]     | |                             ^             ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     | |_____________________________|
[INFO] [stderr]     |                               the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn return_slice_mut(&mut self) -> FFISliceMut<'_, u32> {
[INFO] [stderr]     |                                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> reference_project/src/patterns/service.rs:20:6
[INFO] [stderr]     |
[INFO] [stderr]  20 |   impl SimpleService {
[INFO] [stderr]     |  ______^
[INFO] [stderr]  21 | |     /// The constructor must return a `Result<Self, Error>`.
[INFO] [stderr]  22 | |     #[ffi_service_ctor]
[INFO] [stderr]  23 | |     pub fn new_with(some_value: u32) -> Result<Self, Error> {
[INFO] [stderr] ...   |
[INFO] [stderr] 122 | |     #[ffi_service_method(on_panic = "undefined_behavior")]
[INFO] [stderr] 123 | |     pub fn return_string(&mut self) -> AsciiPointer {
[INFO] [stderr]     | |                          ^             ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     | |__________________________|
[INFO] [stderr]     |                            the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 123 |     pub fn return_string(&mut self) -> AsciiPointer<'_> {
[INFO] [stderr]     |                                                    ++++
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Helper` is never constructed
[INFO] [stderr]    --> src/writer.rs:672:12
[INFO] [stderr]     |
[INFO] [stderr] 672 | pub struct Helper<'a> {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `write_common_service_method_overload` is never used
[INFO] [stderr]    --> src/writer.rs:678:4
[INFO] [stderr]     |
[INFO] [stderr] 678 | fn write_common_service_method_overload<FPatternMap: Fn(&Helper, &Parameter) -> String>(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `interoptopus_reference_project` (lib) generated 6 warnings (run `cargo fix --lib -p interoptopus_reference_project` to apply 6 suggestions)
[INFO] [stderr] warning: `interoptopus_custom_c_backend` (lib) generated 2 warnings
[INFO] [stderr] warning: `interoptopus_custom_c_backend` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/interoptopus_custom_c_backend-f0d4430986975ffb)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/backend_c_ui.rs (/opt/rustwide/target/debug/deps/backend_c_ui-020c79237db40f75)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test bindings_work ... FAILED
[INFO] [stdout] test bindings_match_reference ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- bindings_work stdout ----
[INFO] [stdout] Error: IO(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stdout] 
[INFO] [stdout] ---- bindings_match_reference stdout ----
[INFO] [stdout] Error: IO(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     bindings_match_reference
[INFO] [stdout]     bindings_work
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test backend_c_ui`
[INFO] running `Command { std: "docker" "inspect" "be6242d5ee0cd267b5a4f414cbf7aebceae6d0cc8d057f1640997c13b4555563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be6242d5ee0cd267b5a4f414cbf7aebceae6d0cc8d057f1640997c13b4555563", kill_on_drop: false }`
[INFO] [stdout] be6242d5ee0cd267b5a4f414cbf7aebceae6d0cc8d057f1640997c13b4555563
