[INFO] fetching crate base-coroutine 0.2.0...
[INFO] checking base-coroutine-0.2.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate base-coroutine 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate base-coroutine 0.2.0 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate base-coroutine 0.2.0
[INFO] finished tweaking crates.io crate base-coroutine 0.2.0
[INFO] tweaked toml for crates.io crate base-coroutine 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.5.2+5.3.0-patched` for dependency `jemalloc-sys` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded st3 v0.4.1
[INFO] [stderr]   Downloaded generator v0.7.5
[INFO] [stderr]   Downloaded loom v0.5.6
[INFO] [stderr]   Downloaded jemalloc-sys v0.5.4+5.3.0-patched
[INFO] [stderr]   Downloaded object-collection v0.0.4
[INFO] [stderr]   Downloaded timer-utils v0.0.3
[INFO] [stderr]   Downloaded object-collection v0.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32509fd1271872859e37d8031ea15a430aa741456c359009254c5f26c980747f
[INFO] running `Command { std: "docker" "start" "-a" "32509fd1271872859e37d8031ea15a430aa741456c359009254c5f26c980747f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32509fd1271872859e37d8031ea15a430aa741456c359009254c5f26c980747f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32509fd1271872859e37d8031ea15a430aa741456c359009254c5f26c980747f", kill_on_drop: false }`
[INFO] [stdout] 32509fd1271872859e37d8031ea15a430aa741456c359009254c5f26c980747f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6953da548fd52fd2c36efd3c14a28b3475e8fd8c077a16182a0f3e7ccd91c6e
[INFO] running `Command { std: "docker" "start" "-a" "c6953da548fd52fd2c36efd3c14a28b3475e8fd8c077a16182a0f3e7ccd91c6e", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.5.2+5.3.0-patched` for dependency `jemalloc-sys` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking object-collection v0.0.3
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking object-collection v0.0.4
[INFO] [stderr]     Checking st3 v0.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking timer-utils v0.0.3
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling jemalloc-sys v0.5.4+5.3.0-patched
[INFO] [stderr]    Compiling base-coroutine v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: base-coroutine@0.2.0: Compiler version doesn't include clang or GCC: "cc" "--version"
[INFO] [stdout] warning: the item `c_void` is imported redundantly
[INFO] [stdout]    --> src/context/mod.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |     use std::os::raw::c_void;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 114 |
[INFO] [stdout] 115 |     use super::*;
[INFO] [stdout]     |         -------- the item `c_void` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/monitor.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 |         unsafe { &mut GLOBAL }
[INFO] [stdout]    |                  ^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447>
[INFO] [stdout]    = note: this will be a hard error in the 2024 edition
[INFO] [stdout]    = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] help: use `addr_of_mut!` instead to create a raw pointer
[INFO] [stdout]    |
[INFO] [stdout] 64 |         unsafe { addr_of_mut!(GLOBAL) }
[INFO] [stdout]    |                  ~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/monitor.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 |         unsafe { &mut GLOBAL }
[INFO] [stdout]    |                  ^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447>
[INFO] [stdout]    = note: this will be a hard error in the 2024 edition
[INFO] [stdout]    = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] help: use `addr_of_mut!` instead to create a raw pointer
[INFO] [stdout]    |
[INFO] [stdout] 64 |         unsafe { addr_of_mut!(GLOBAL) }
[INFO] [stdout]    |                  ~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `CoroutineResult<Yield, Return>`, which is not FFI-safe
[INFO] [stdout]    --> src/coroutine.rs:163:29
[INFO] [stdout]     |
[INFO] [stdout] 163 |     marker: PhantomData<&'a extern "C" fn(Param) -> CoroutineResult<Yield, Return>>,
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]    --> src/coroutine.rs:114:1
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub enum CoroutineResult<Yield, Return> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `CoroutineResult<Yield, Return>`, which is not FFI-safe
[INFO] [stdout]    --> src/coroutine.rs:163:29
[INFO] [stdout]     |
[INFO] [stdout] 163 |     marker: PhantomData<&'a extern "C" fn(Param) -> CoroutineResult<Yield, Return>>,
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]    --> src/coroutine.rs:114:1
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub enum CoroutineResult<Yield, Return> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 53.39s
[INFO] running `Command { std: "docker" "inspect" "c6953da548fd52fd2c36efd3c14a28b3475e8fd8c077a16182a0f3e7ccd91c6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6953da548fd52fd2c36efd3c14a28b3475e8fd8c077a16182a0f3e7ccd91c6e", kill_on_drop: false }`
[INFO] [stdout] c6953da548fd52fd2c36efd3c14a28b3475e8fd8c077a16182a0f3e7ccd91c6e
[INFO] checking base-coroutine-0.2.0 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate base-coroutine 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate base-coroutine 0.2.0 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate base-coroutine 0.2.0
[INFO] finished tweaking crates.io crate base-coroutine 0.2.0
[INFO] tweaked toml for crates.io crate base-coroutine 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.5.2+5.3.0-patched` for dependency `jemalloc-sys` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4b7fa841de3fbcc130b06996951b0487fef18ee29a361f152f2671874a27841
[INFO] running `Command { std: "docker" "start" "-a" "d4b7fa841de3fbcc130b06996951b0487fef18ee29a361f152f2671874a27841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4b7fa841de3fbcc130b06996951b0487fef18ee29a361f152f2671874a27841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4b7fa841de3fbcc130b06996951b0487fef18ee29a361f152f2671874a27841", kill_on_drop: false }`
[INFO] [stdout] d4b7fa841de3fbcc130b06996951b0487fef18ee29a361f152f2671874a27841
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d62eff9e47f1a8a5974ffa2a7c902cd10501764545ef3fc04ba66edef645f5f
[INFO] running `Command { std: "docker" "start" "-a" "9d62eff9e47f1a8a5974ffa2a7c902cd10501764545ef3fc04ba66edef645f5f", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.5.2+5.3.0-patched` for dependency `jemalloc-sys` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking object-collection v0.0.3
[INFO] [stderr]     Checking st3 v0.4.1
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking object-collection v0.0.4
[INFO] [stderr]     Checking timer-utils v0.0.3
[INFO] [stderr]    Compiling jemalloc-sys v0.5.4+5.3.0-patched
[INFO] [stderr]    Compiling base-coroutine v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: base-coroutine@0.2.0: Compiler version doesn't include clang or GCC: "cc" "--version"
[INFO] [stdout] warning: the item `c_void` is imported redundantly
[INFO] [stdout]    --> src/context/mod.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |     use std::os::raw::c_void;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 114 |
[INFO] [stdout] 115 |     use super::*;
[INFO] [stdout]     |         -------- the item `c_void` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/monitor.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 |         unsafe { &mut GLOBAL }
[INFO] [stdout]    |                  ^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447>
[INFO] [stdout]    = note: this will be a hard error in the 2024 edition
[INFO] [stdout]    = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] help: use `addr_of_mut!` instead to create a raw pointer
[INFO] [stdout]    |
[INFO] [stdout] 64 |         unsafe { addr_of_mut!(GLOBAL) }
[INFO] [stdout]    |                  ~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/monitor.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 |         unsafe { &mut GLOBAL }
[INFO] [stdout]    |                  ^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447>
[INFO] [stdout]    = note: this will be a hard error in the 2024 edition
[INFO] [stdout]    = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] help: use `addr_of_mut!` instead to create a raw pointer
[INFO] [stdout]    |
[INFO] [stdout] 64 |         unsafe { addr_of_mut!(GLOBAL) }
[INFO] [stdout]    |                  ~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `CoroutineResult<Yield, Return>`, which is not FFI-safe
[INFO] [stdout]    --> src/coroutine.rs:163:29
[INFO] [stdout]     |
[INFO] [stdout] 163 |     marker: PhantomData<&'a extern "C" fn(Param) -> CoroutineResult<Yield, Return>>,
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]    --> src/coroutine.rs:114:1
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub enum CoroutineResult<Yield, Return> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `CoroutineResult<Yield, Return>`, which is not FFI-safe
[INFO] [stdout]    --> src/coroutine.rs:163:29
[INFO] [stdout]     |
[INFO] [stdout] 163 |     marker: PhantomData<&'a extern "C" fn(Param) -> CoroutineResult<Yield, Return>>,
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]    --> src/coroutine.rs:114:1
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub enum CoroutineResult<Yield, Return> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.53s
[INFO] running `Command { std: "docker" "inspect" "9d62eff9e47f1a8a5974ffa2a7c902cd10501764545ef3fc04ba66edef645f5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d62eff9e47f1a8a5974ffa2a7c902cd10501764545ef3fc04ba66edef645f5f", kill_on_drop: false }`
[INFO] [stdout] 9d62eff9e47f1a8a5974ffa2a7c902cd10501764545ef3fc04ba66edef645f5f
