[INFO] fetching crate ffi-mock 0.1.0...
[INFO] testing ffi-mock-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate ffi-mock 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate ffi-mock 0.1.0
[INFO] finished tweaking crates.io crate ffi-mock 0.1.0
[INFO] tweaked toml for crates.io crate ffi-mock 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ffi-mock 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 61a1476c3e35cfde0c42e528e8d6fe6a080e0496554f658311a54778d33dabc1
[INFO] running `Command { std: "docker" "start" "-a" "61a1476c3e35cfde0c42e528e8d6fe6a080e0496554f658311a54778d33dabc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61a1476c3e35cfde0c42e528e8d6fe6a080e0496554f658311a54778d33dabc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61a1476c3e35cfde0c42e528e8d6fe6a080e0496554f658311a54778d33dabc1", kill_on_drop: false }`
[INFO] [stdout] 61a1476c3e35cfde0c42e528e8d6fe6a080e0496554f658311a54778d33dabc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 5c6c71f2866349062de41a1ae31544adccac5c6a4e55733c90fb699e107dbf38
[INFO] running `Command { std: "docker" "start" "-a" "5c6c71f2866349062de41a1ae31544adccac5c6a4e55733c90fb699e107dbf38", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling ffi-mock-macro v0.1.0
[INFO] [stderr]    Compiling ffi-mock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.47s
[INFO] running `Command { std: "docker" "inspect" "5c6c71f2866349062de41a1ae31544adccac5c6a4e55733c90fb699e107dbf38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c6c71f2866349062de41a1ae31544adccac5c6a4e55733c90fb699e107dbf38", kill_on_drop: false }`
[INFO] [stdout] 5c6c71f2866349062de41a1ae31544adccac5c6a4e55733c90fb699e107dbf38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] eb33555642f766cdd4b3bb7ce48e40c53a4b5a1726be4c5fa46032bea0f7c155
[INFO] running `Command { std: "docker" "start" "-a" "eb33555642f766cdd4b3bb7ce48e40c53a4b5a1726be4c5fa46032bea0f7c155", kill_on_drop: false }`
[INFO] [stderr]    Compiling ffi-mock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `b` and `c` are never read
[INFO] [stdout]   --> src/lib.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     struct TestStruct {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 79 |         a: u32,
[INFO] [stdout] 80 |         b: *const std::ffi::c_void,
[INFO] [stdout]    |         ^
[INFO] [stdout] 81 |         c: usize,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestStruct` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `TestStruct`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:84:60
[INFO] [stdout]    |
[INFO] [stdout] 84 |         fn test_fun(a: u32, b: *const std::ffi::c_void, c: TestStruct) -> TestStruct;
[INFO] [stdout]    |                                                            ^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/lib.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     struct TestStruct {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `TestStruct`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:84:75
[INFO] [stdout]    |
[INFO] [stdout] 84 |         fn test_fun(a: u32, b: *const std::ffi::c_void, c: TestStruct) -> TestStruct;
[INFO] [stdout]    |                                                                           ^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/lib.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     struct TestStruct {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `TestStruct`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:106:64
[INFO] [stdout]     |
[INFO] [stdout] 106 |             fn test_fun(a: u32, b: *const std::ffi::c_void, c: TestStruct) -> TestStruct
[INFO] [stdout]     |                                                                ^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]    --> src/lib.rs:78:5
[INFO] [stdout]     |
[INFO] [stdout]  78 |     struct TestStruct {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `TestStruct`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:106:79
[INFO] [stdout]     |
[INFO] [stdout] 106 |             fn test_fun(a: u32, b: *const std::ffi::c_void, c: TestStruct) -> TestStruct
[INFO] [stdout]     |                                                                               ^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]    --> src/lib.rs:78:5
[INFO] [stdout]     |
[INFO] [stdout]  78 |     struct TestStruct {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "eb33555642f766cdd4b3bb7ce48e40c53a4b5a1726be4c5fa46032bea0f7c155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb33555642f766cdd4b3bb7ce48e40c53a4b5a1726be4c5fa46032bea0f7c155", kill_on_drop: false }`
[INFO] [stdout] eb33555642f766cdd4b3bb7ce48e40c53a4b5a1726be4c5fa46032bea0f7c155
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 853f2acb512a57752eed612ce002800be706674812f3826c71a2dc37a5527792
[INFO] running `Command { std: "docker" "start" "-a" "853f2acb512a57752eed612ce002800be706674812f3826c71a2dc37a5527792", kill_on_drop: false }`
[INFO] [stderr] warning: fields `b` and `c` are never read
[INFO] [stderr]   --> src/lib.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |     struct TestStruct {
[INFO] [stderr]    |            ---------- fields in this struct
[INFO] [stderr] 79 |         a: u32,
[INFO] [stderr] 80 |         b: *const std::ffi::c_void,
[INFO] [stderr]    |         ^
[INFO] [stderr] 81 |         c: usize,
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `TestStruct` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `TestStruct`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:84:60
[INFO] [stderr]    |
[INFO] [stderr] 84 |         fn test_fun(a: u32, b: *const std::ffi::c_void, c: TestStruct) -> TestStruct;
[INFO] [stderr]    |                                                            ^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] note: the type is defined here
[INFO] [stderr]   --> src/lib.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     struct TestStruct {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `TestStruct`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:84:75
[INFO] [stderr]    |
[INFO] [stderr] 84 |         fn test_fun(a: u32, b: *const std::ffi::c_void, c: TestStruct) -> TestStruct;
[INFO] [stderr]    |                                                                           ^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] note: the type is defined here
[INFO] [stderr]   --> src/lib.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     struct TestStruct {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `TestStruct`, which is not FFI-safe
[INFO] [stderr]    --> src/lib.rs:106:64
[INFO] [stderr]     |
[INFO] [stderr] 106 |             fn test_fun(a: u32, b: *const std::ffi::c_void, c: TestStruct) -> TestStruct
[INFO] [stderr]     |                                                                ^^^^^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]     = note: this struct has unspecified layout
[INFO] [stderr] note: the type is defined here
[INFO] [stderr]    --> src/lib.rs:78:5
[INFO] [stderr]     |
[INFO] [stderr]  78 |     struct TestStruct {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `TestStruct`, which is not FFI-safe
[INFO] [stderr]    --> src/lib.rs:106:79
[INFO] [stderr]     |
[INFO] [stderr] 106 |             fn test_fun(a: u32, b: *const std::ffi::c_void, c: TestStruct) -> TestStruct
[INFO] [stderr]     |                                                                               ^^^^^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]     = note: this struct has unspecified layout
[INFO] [stderr] note: the type is defined here
[INFO] [stderr]    --> src/lib.rs:78:5
[INFO] [stderr]     |
[INFO] [stderr]  78 |     struct TestStruct {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ffi-mock` (lib test) generated 5 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ffi_mock-86ae19604095d700)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::basic_setup ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ffi_mock
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "853f2acb512a57752eed612ce002800be706674812f3826c71a2dc37a5527792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "853f2acb512a57752eed612ce002800be706674812f3826c71a2dc37a5527792", kill_on_drop: false }`
[INFO] [stdout] 853f2acb512a57752eed612ce002800be706674812f3826c71a2dc37a5527792