[INFO] fetching crate alioth 0.12.0...
[INFO] checking alioth-0.12.0 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate alioth 0.12.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate alioth 0.12.0
[INFO] finished tweaking crates.io crate alioth 0.12.0
[INFO] tweaked toml for crates.io crate alioth 0.12.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate alioth 0.12.0 on toolchain 40527f3e444fde1deb361751bdef9b9e11d1b971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate alioth 0.12.0 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" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] de8fffa72cfd82a04d50b7c790ea8df8d1af0972af94ea8f8debc1e4c1b6effd
[INFO] running `Command { std: "docker" "start" "de8fffa72cfd82a04d50b7c790ea8df8d1af0972af94ea8f8debc1e4c1b6effd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de8fffa72cfd82a04d50b7c790ea8df8d1af0972af94ea8f8debc1e4c1b6effd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "de8fffa72cfd82a04d50b7c790ea8df8d1af0972af94ea8f8debc1e4c1b6effd" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de8fffa72cfd82a04d50b7c790ea8df8d1af0972af94ea8f8debc1e4c1b6effd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid --cfg crater_hack --force-warn invalid-c-variadic-arguments" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "de8fffa72cfd82a04d50b7c790ea8df8d1af0972af94ea8f8debc1e4c1b6effd" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling io-uring v0.7.11
[INFO] [stderr]    Compiling rstest_macros v0.26.1
[INFO] [stderr]    Compiling toml_edit v0.23.10+spec-1.0.0
[INFO] [stderr]    Compiling zerocopy v0.8.40
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking chrono v0.4.44
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling dtor-proc-macro v0.0.6
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking mio v1.1.1
[INFO] [stderr]    Compiling ctor-proc-macro v0.0.7
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]     Checking dtor v0.1.1
[INFO] [stderr]     Checking ctor v0.6.3
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]    Compiling proc-macro-crate v3.4.0
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking tempfile v3.25.0
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde-aco-derive v0.12.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling bitfield-macros v0.19.4
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling zerocopy-derive v0.8.40
[INFO] [stderr]    Compiling snafu-derive v0.8.9
[INFO] [stderr]    Compiling alioth-macros v0.12.0
[INFO] [stderr]     Checking bitfield v0.19.4
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking thiserror v2.0.17
[INFO] [stderr]     Checking flexi_logger v0.31.8
[INFO] [stderr]     Checking snafu v0.8.9
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking rstest v0.26.1
[INFO] [stderr]     Checking serde-aco v0.12.0
[INFO] [stderr]     Checking alioth v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `TunFeature`.
[INFO] [stdout]   --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]    |                                                                                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/sys/linux/if_tun.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | ioctl_write_val!(tun_set_offload, ioctl_iow::<c_uint>(b'T', 208), TunFeature);
[INFO] [stdout]    | ----------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `TunFeature` does not implement `VaArgSafe`
[INFO] [stdout]   --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]    |                                                                                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/sys/linux/if_tun.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | ioctl_write_val!(tun_set_offload, ioctl_iow::<c_uint>(b'T', 208), TunFeature);
[INFO] [stdout]    | ----------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: values passed as C-variadic arguments must implement `core::ffi::VaArgSafe`
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #162483 <https://github.com/rust-lang/rust/issues/162483>
[INFO] [stdout]    = note: requested on the command line with `--force-warn invalid-c-variadic-arguments`
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `KvmVmType`.
[INFO] [stdout]    --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]     |
[INFO] [stdout]  72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]     |                                                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/linux/kvm.rs:689:1
[INFO] [stdout]     |
[INFO] [stdout] 689 | ioctl_write_val!(kvm_create_vm, KVMIO, 0x01, KvmVmType);
[INFO] [stdout]     | ------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::ioctl_write_val` which comes from the expansion of the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `KvmVmType` does not implement `VaArgSafe`
[INFO] [stdout]    --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]     |
[INFO] [stdout]  72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]     |                                                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/linux/kvm.rs:689:1
[INFO] [stdout]     |
[INFO] [stdout] 689 | ioctl_write_val!(kvm_create_vm, KVMIO, 0x01, KvmVmType);
[INFO] [stdout]     | ------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: values passed as C-variadic arguments must implement `core::ffi::VaArgSafe`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #162483 <https://github.com/rust-lang/rust/issues/162483>
[INFO] [stdout]     = note: this warning originates in the macro `$crate::ioctl_write_val` which comes from the expansion of the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `sys::linux::kvm::KvmCap`.
[INFO] [stdout]    --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]     |
[INFO] [stdout]  72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]     |                                                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/linux/kvm.rs:690:1
[INFO] [stdout]     |
[INFO] [stdout] 690 | ioctl_write_val!(kvm_check_extension, KVMIO, 0x03, KvmCap);
[INFO] [stdout]     | ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::ioctl_write_val` which comes from the expansion of the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `sys::linux::kvm::KvmCap` does not implement `VaArgSafe`
[INFO] [stdout]    --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]     |
[INFO] [stdout]  72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]     |                                                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/linux/kvm.rs:690:1
[INFO] [stdout]     |
[INFO] [stdout] 690 | ioctl_write_val!(kvm_check_extension, KVMIO, 0x03, KvmCap);
[INFO] [stdout]     | ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: values passed as C-variadic arguments must implement `core::ffi::VaArgSafe`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #162483 <https://github.com/rust-lang/rust/issues/162483>
[INFO] [stdout]     = note: this warning originates in the macro `$crate::ioctl_write_val` which comes from the expansion of the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `sys::linux::vfio::VfioIommu`.
[INFO] [stdout]    --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]     |
[INFO] [stdout]  72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]     |                                                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/linux/vfio.rs:349:1
[INFO] [stdout]     |
[INFO] [stdout] 349 | ioctl_write_val!(vfio_set_iommu, ioctl_io(VFIO_TYPE, 102), VfioIommu);
[INFO] [stdout]     | --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `sys::linux::vfio::VfioIommu` does not implement `VaArgSafe`
[INFO] [stdout]    --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]     |
[INFO] [stdout]  72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]     |                                                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/linux/vfio.rs:349:1
[INFO] [stdout]     |
[INFO] [stdout] 349 | ioctl_write_val!(vfio_set_iommu, ioctl_io(VFIO_TYPE, 102), VfioIommu);
[INFO] [stdout]     | --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: values passed as C-variadic arguments must implement `core::ffi::VaArgSafe`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #162483 <https://github.com/rust-lang/rust/issues/162483>
[INFO] [stdout]     = note: this warning originates in the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `alioth` (lib) due to 4 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `TunFeature`.
[INFO] [stdout]   --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]    |                                                                                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/sys/linux/if_tun.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | ioctl_write_val!(tun_set_offload, ioctl_iow::<c_uint>(b'T', 208), TunFeature);
[INFO] [stdout]    | ----------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `TunFeature` does not implement `VaArgSafe`
[INFO] [stdout]   --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]    |                                                                                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/sys/linux/if_tun.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | ioctl_write_val!(tun_set_offload, ioctl_iow::<c_uint>(b'T', 208), TunFeature);
[INFO] [stdout]    | ----------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: values passed as C-variadic arguments must implement `core::ffi::VaArgSafe`
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #162483 <https://github.com/rust-lang/rust/issues/162483>
[INFO] [stdout]    = note: requested on the command line with `--force-warn invalid-c-variadic-arguments`
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `sys::linux::kvm::KvmVmType`.
[INFO] [stdout]    --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]     |
[INFO] [stdout]  72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]     |                                                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/linux/kvm.rs:689:1
[INFO] [stdout]     |
[INFO] [stdout] 689 | ioctl_write_val!(kvm_create_vm, KVMIO, 0x01, KvmVmType);
[INFO] [stdout]     | ------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::ioctl_write_val` which comes from the expansion of the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `sys::linux::kvm::KvmVmType` does not implement `VaArgSafe`
[INFO] [stdout]    --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]     |
[INFO] [stdout]  72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]     |                                                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/linux/kvm.rs:689:1
[INFO] [stdout]     |
[INFO] [stdout] 689 | ioctl_write_val!(kvm_create_vm, KVMIO, 0x01, KvmVmType);
[INFO] [stdout]     | ------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: values passed as C-variadic arguments must implement `core::ffi::VaArgSafe`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #162483 <https://github.com/rust-lang/rust/issues/162483>
[INFO] [stdout]     = note: this warning originates in the macro `$crate::ioctl_write_val` which comes from the expansion of the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `sys::linux::kvm::KvmCap`.
[INFO] [stdout]    --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]     |
[INFO] [stdout]  72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]     |                                                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/linux/kvm.rs:690:1
[INFO] [stdout]     |
[INFO] [stdout] 690 | ioctl_write_val!(kvm_check_extension, KVMIO, 0x03, KvmCap);
[INFO] [stdout]     | ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::ioctl_write_val` which comes from the expansion of the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `sys::linux::kvm::KvmCap` does not implement `VaArgSafe`
[INFO] [stdout]    --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]     |
[INFO] [stdout]  72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]     |                                                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/linux/kvm.rs:690:1
[INFO] [stdout]     |
[INFO] [stdout] 690 | ioctl_write_val!(kvm_check_extension, KVMIO, 0x03, KvmCap);
[INFO] [stdout]     | ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: values passed as C-variadic arguments must implement `core::ffi::VaArgSafe`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #162483 <https://github.com/rust-lang/rust/issues/162483>
[INFO] [stdout]     = note: this warning originates in the macro `$crate::ioctl_write_val` which comes from the expansion of the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `sys::linux::vfio::VfioIommu`.
[INFO] [stdout]    --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]     |
[INFO] [stdout]  72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]     |                                                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/linux/vfio.rs:349:1
[INFO] [stdout]     |
[INFO] [stdout] 349 | ioctl_write_val!(vfio_set_iommu, ioctl_io(VFIO_TYPE, 102), VfioIommu);
[INFO] [stdout]     | --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `sys::linux::vfio::VfioIommu` does not implement `VaArgSafe`
[INFO] [stdout]    --> src/sys/linux/ioctl.rs:72:88
[INFO] [stdout]     |
[INFO] [stdout]  72 |                 ::libc::ioctl(::std::os::fd::AsRawFd::as_raw_fd(&fd.as_fd()), op as _, val)
[INFO] [stdout]     |                                                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/sys/linux/vfio.rs:349:1
[INFO] [stdout]     |
[INFO] [stdout] 349 | ioctl_write_val!(vfio_set_iommu, ioctl_io(VFIO_TYPE, 102), VfioIommu);
[INFO] [stdout]     | --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: values passed as C-variadic arguments must implement `core::ffi::VaArgSafe`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #162483 <https://github.com/rust-lang/rust/issues/162483>
[INFO] [stdout]     = note: this warning originates in the macro `ioctl_write_val` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `alioth` (lib test) due to 4 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "de8fffa72cfd82a04d50b7c790ea8df8d1af0972af94ea8f8debc1e4c1b6effd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de8fffa72cfd82a04d50b7c790ea8df8d1af0972af94ea8f8debc1e4c1b6effd", kill_on_drop: false }`
[INFO] [stdout] de8fffa72cfd82a04d50b7c790ea8df8d1af0972af94ea8f8debc1e4c1b6effd
