[INFO] fetching crate ffi-mock 0.1.0...
[INFO] testing ffi-mock-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate ffi-mock 0.1.0 into /workspace/builds/worker-4-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-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ffi-mock 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5df75c093b171db6d91d9e20308ab9bc0362c2330ad82d61a0e27a31a045eff0
[INFO] running `Command { std: "docker" "start" "-a" "5df75c093b171db6d91d9e20308ab9bc0362c2330ad82d61a0e27a31a045eff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5df75c093b171db6d91d9e20308ab9bc0362c2330ad82d61a0e27a31a045eff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5df75c093b171db6d91d9e20308ab9bc0362c2330ad82d61a0e27a31a045eff0", kill_on_drop: false }`
[INFO] [stdout] 5df75c093b171db6d91d9e20308ab9bc0362c2330ad82d61a0e27a31a045eff0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4abf324cd36d18fd434f24caf4bbdc434ce210433ab0b824189f7a764d49a6ed
[INFO] running `Command { std: "docker" "start" "-a" "4abf324cd36d18fd434f24caf4bbdc434ce210433ab0b824189f7a764d49a6ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v2.0.117
[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 5.97s
[INFO] running `Command { std: "docker" "inspect" "4abf324cd36d18fd434f24caf4bbdc434ce210433ab0b824189f7a764d49a6ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4abf324cd36d18fd434f24caf4bbdc434ce210433ab0b824189f7a764d49a6ed", kill_on_drop: false }`
[INFO] [stdout] 4abf324cd36d18fd434f24caf4bbdc434ce210433ab0b824189f7a764d49a6ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09ee12db16f68756c49c58245cd6eebdaa9f2a720555f1a1d6bd1821818713ac
[INFO] running `Command { std: "docker" "start" "-a" "09ee12db16f68756c49c58245cd6eebdaa9f2a720555f1a1d6bd1821818713ac", 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 0.51s
[INFO] running `Command { std: "docker" "inspect" "09ee12db16f68756c49c58245cd6eebdaa9f2a720555f1a1d6bd1821818713ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09ee12db16f68756c49c58245cd6eebdaa9f2a720555f1a1d6bd1821818713ac", kill_on_drop: false }`
[INFO] [stdout] 09ee12db16f68756c49c58245cd6eebdaa9f2a720555f1a1d6bd1821818713ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9b391ae675d57e15d078ebc2f53c1a012a989058323b5d118caf84ab1f0d8da8
[INFO] running `Command { std: "docker" "start" "-a" "9b391ae675d57e15d078ebc2f53c1a012a989058323b5d118caf84ab1f0d8da8", 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 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ffi_mock-cab283fddeb3b314)
[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" "9b391ae675d57e15d078ebc2f53c1a012a989058323b5d118caf84ab1f0d8da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b391ae675d57e15d078ebc2f53c1a012a989058323b5d118caf84ab1f0d8da8", kill_on_drop: false }`
[INFO] [stdout] 9b391ae675d57e15d078ebc2f53c1a012a989058323b5d118caf84ab1f0d8da8