[INFO] fetching crate emf-core-base-rs-ffi 0.1.2...
[INFO] checking emf-core-base-rs-ffi-0.1.2 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate emf-core-base-rs-ffi 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate emf-core-base-rs-ffi 0.1.2
[INFO] finished tweaking crates.io crate emf-core-base-rs-ffi 0.1.2
[INFO] tweaked toml for crates.io crate emf-core-base-rs-ffi 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate emf-core-base-rs-ffi 0.1.2 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c002aaa2e8d83cded7bee95a623d103475d20bb85c7a775e54a2cf1e4dd1f870
[INFO] running `Command { std: "docker" "start" "-a" "c002aaa2e8d83cded7bee95a623d103475d20bb85c7a775e54a2cf1e4dd1f870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c002aaa2e8d83cded7bee95a623d103475d20bb85c7a775e54a2cf1e4dd1f870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c002aaa2e8d83cded7bee95a623d103475d20bb85c7a775e54a2cf1e4dd1f870", kill_on_drop: false }`
[INFO] [stdout] c002aaa2e8d83cded7bee95a623d103475d20bb85c7a775e54a2cf1e4dd1f870
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1eb0e567716de382edf523e7a9387461acc8007d20d7fe057565d94848b9aaec
[INFO] running `Command { std: "docker" "start" "-a" "1eb0e567716de382edf523e7a9387461acc8007d20d7fe057565d94848b9aaec", kill_on_drop: false }`
[INFO] [stderr]     Checking emf-core-base-rs-ffi v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `c_unwind` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(c_unwind)]
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `c_unwind` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(c_unwind)]
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collections/span.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn iter(&self) -> Iter<T> {
[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] 65 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collections/span.rs:97:21
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn iter_mut(&mut self) -> IterMut<T> {
[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] 97 |     pub fn iter_mut(&mut self) -> IterMut<'_, T> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collections/static_vec.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn iter(&self) -> Iter<T> {
[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] 142 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collections/static_vec.rs:147:21
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn iter_mut(&mut self) -> IterMut<T> {
[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] 147 |     pub fn iter_mut(&mut self) -> IterMut<'_, T> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `fn()`, which is not FFI-safe
[INFO] [stdout]    --> src/library/api.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 120 | /     unsafe extern "C-unwind" fn(
[INFO] [stdout] 121 | |         base_module: Option<NonNull<CBase>>,
[INFO] [stdout] 122 | |         handle: LibraryHandle,
[INFO] [stdout] 123 | |         symbol: NonNullConst<u8>,
[INFO] [stdout] 124 | |     ) -> Result<Symbol<CBaseFn>, Error>,
[INFO] [stdout]     | |_______________________________________^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stdout]     = note: this function pointer has Rust-specific calling convention
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `fn()`, which is not FFI-safe
[INFO] [stdout]   --> src/library/library_loader.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     unsafe extern "C-unwind" fn(
[INFO] [stdout] 42 | |         loader: Option<NonNull<LibraryLoader>>,
[INFO] [stdout] 43 | |         handle: InternalHandle,
[INFO] [stdout] 44 | |         name: NonNullConst<u8>,
[INFO] [stdout] 45 | |     ) -> Result<Symbol<CBaseFn>, Error>,
[INFO] [stdout]    | |_______________________________________^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stdout]    = note: this function pointer has Rust-specific calling convention
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `fn()`, which is not FFI-safe
[INFO] [stdout]   --> src/module/native_module.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     unsafe extern "C-unwind" fn(
[INFO] [stdout] 18 | |         handle: ModuleHandle,
[INFO] [stdout] 19 | |         base_module: Option<NonNull<CBase>>,
[INFO] [stdout] 20 | |         has_function_fn: HasFunctionFn,
[INFO] [stdout] 21 | |         get_function_fn: GetFunctionFn,
[INFO] [stdout] 22 | |     ) -> Result<Option<NonNull<NativeModule>>, Error>,
[INFO] [stdout]    | |_____________________________________________________^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stdout]    = note: this function pointer has Rust-specific calling convention
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `fn()`, which is not FFI-safe
[INFO] [stdout]   --> src/sys/api.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     unsafe extern "C-unwind" fn(base_module: Option<NonNull<CBase>>, id: FnId) -> Optional<CBaseFn>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stdout]    = note: this function pointer has Rust-specific calling convention
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collections/span.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn iter(&self) -> Iter<T> {
[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] 65 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collections/span.rs:97:21
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn iter_mut(&mut self) -> IterMut<T> {
[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] 97 |     pub fn iter_mut(&mut self) -> IterMut<'_, T> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collections/static_vec.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn iter(&self) -> Iter<T> {
[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] 142 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collections/static_vec.rs:147:21
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn iter_mut(&mut self) -> IterMut<T> {
[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] 147 |     pub fn iter_mut(&mut self) -> IterMut<'_, T> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `fn()`, which is not FFI-safe
[INFO] [stdout]    --> src/library/api.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 120 | /     unsafe extern "C-unwind" fn(
[INFO] [stdout] 121 | |         base_module: Option<NonNull<CBase>>,
[INFO] [stdout] 122 | |         handle: LibraryHandle,
[INFO] [stdout] 123 | |         symbol: NonNullConst<u8>,
[INFO] [stdout] 124 | |     ) -> Result<Symbol<CBaseFn>, Error>,
[INFO] [stdout]     | |_______________________________________^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stdout]     = note: this function pointer has Rust-specific calling convention
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `fn()`, which is not FFI-safe
[INFO] [stdout]   --> src/library/library_loader.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     unsafe extern "C-unwind" fn(
[INFO] [stdout] 42 | |         loader: Option<NonNull<LibraryLoader>>,
[INFO] [stdout] 43 | |         handle: InternalHandle,
[INFO] [stdout] 44 | |         name: NonNullConst<u8>,
[INFO] [stdout] 45 | |     ) -> Result<Symbol<CBaseFn>, Error>,
[INFO] [stdout]    | |_______________________________________^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stdout]    = note: this function pointer has Rust-specific calling convention
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `fn()`, which is not FFI-safe
[INFO] [stdout]   --> src/module/native_module.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     unsafe extern "C-unwind" fn(
[INFO] [stdout] 18 | |         handle: ModuleHandle,
[INFO] [stdout] 19 | |         base_module: Option<NonNull<CBase>>,
[INFO] [stdout] 20 | |         has_function_fn: HasFunctionFn,
[INFO] [stdout] 21 | |         get_function_fn: GetFunctionFn,
[INFO] [stdout] 22 | |     ) -> Result<Option<NonNull<NativeModule>>, Error>,
[INFO] [stdout]    | |_____________________________________________________^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stdout]    = note: this function pointer has Rust-specific calling convention
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `fn()`, which is not FFI-safe
[INFO] [stdout]   --> src/sys/api.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     unsafe extern "C-unwind" fn(base_module: Option<NonNull<CBase>>, id: FnId) -> Optional<CBaseFn>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stdout]    = note: this function pointer has Rust-specific calling convention
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "1eb0e567716de382edf523e7a9387461acc8007d20d7fe057565d94848b9aaec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eb0e567716de382edf523e7a9387461acc8007d20d7fe057565d94848b9aaec", kill_on_drop: false }`
[INFO] [stdout] 1eb0e567716de382edf523e7a9387461acc8007d20d7fe057565d94848b9aaec
