[INFO] cloning repository https://github.com/clonedcherry/tower-of-hanoi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clonedcherry/tower-of-hanoi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclonedcherry%2Ftower-of-hanoi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclonedcherry%2Ftower-of-hanoi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38fdef113eebab257a71a8422d7272f3bae0d7f6
[INFO] checking clonedcherry/tower-of-hanoi against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclonedcherry%2Ftower-of-hanoi" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/clonedcherry/tower-of-hanoi
[INFO] finished tweaking git repo https://github.com/clonedcherry/tower-of-hanoi
[INFO] tweaked toml for git repo https://github.com/clonedcherry/tower-of-hanoi written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/clonedcherry/tower-of-hanoi 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 git repo https://github.com/clonedcherry/tower-of-hanoi 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] [stderr] warning: Cargo.toml: unused manifest key: package.keyword
[INFO] [stderr] warning: `tower-of-hanoi` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0bd932a6312c8ec0fb87851c7e50085d9bffafcc25fff9cabc0f7152540dc74e
[INFO] running `Command { std: "docker" "start" "0bd932a6312c8ec0fb87851c7e50085d9bffafcc25fff9cabc0f7152540dc74e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bd932a6312c8ec0fb87851c7e50085d9bffafcc25fff9cabc0f7152540dc74e", 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" "0bd932a6312c8ec0fb87851c7e50085d9bffafcc25fff9cabc0f7152540dc74e" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bd932a6312c8ec0fb87851c7e50085d9bffafcc25fff9cabc0f7152540dc74e", 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" "0bd932a6312c8ec0fb87851c7e50085d9bffafcc25fff9cabc0f7152540dc74e" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: unused manifest key: package.keyword
[INFO] [stderr] warning: `tower-of-hanoi` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]    Compiling wayland-sys v0.28.5
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling wayland-scanner v0.12.5
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling wayland-scanner v0.28.5
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking piston-float v0.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking piston-viewport v1.0.0
[INFO] [stderr]    Compiling wayland-client v0.12.5
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling wayland-client v0.28.5
[INFO] [stderr]    Compiling wayland-protocols v0.28.5
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking piston-viewport v0.3.0
[INFO] [stderr]     Checking wayland-sys v0.12.5
[INFO] [stderr]     Checking piston-graphics_api_version v1.0.0
[INFO] [stderr]     Checking token_store v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `Format`.
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/wayland-client/7ee07e0f09bf5b53/out/wayland_api.rs:782:220
[INFO] [stdout]     |
[INFO] [stdout] 782 | ... ptr::null_mut::<wl_proxy>(), offset, width, height, stride, format) };
[INFO] [stdout]     |                                                                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Format` does not implement `VaArgSafe`
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/wayland-client/7ee07e0f09bf5b53/out/wayland_api.rs:782:220
[INFO] [stdout]     |
[INFO] [stdout] 782 | ... ptr::null_mut::<wl_proxy>(), offset, width, height, stride, format) };
[INFO] [stdout]     |                                                                 ^^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `Resize`.
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/wayland-client/7ee07e0f09bf5b53/out/wayland_api.rs:3060:134
[INFO] [stdout]      |
[INFO] [stdout] 3060 | ...al, self.ptr(), WL_SHELL_SURFACE_RESIZE, seat.ptr(), serial, edges) };
[INFO] [stdout]      |                                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Resize` does not implement `VaArgSafe`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/wayland-client/7ee07e0f09bf5b53/out/wayland_api.rs:3060:134
[INFO] [stdout]      |
[INFO] [stdout] 3060 | ...al, self.ptr(), WL_SHELL_SURFACE_RESIZE, seat.ptr(), serial, edges) };
[INFO] [stdout]      |                                                                 ^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `Transient`.
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/wayland-client/7ee07e0f09bf5b53/out/wayland_api.rs:3080:141
[INFO] [stdout]      |
[INFO] [stdout] 3080 | ...f.ptr(), WL_SHELL_SURFACE_SET_TRANSIENT, parent.ptr(), x, y, flags) };
[INFO] [stdout]      |                                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Transient` does not implement `VaArgSafe`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/wayland-client/7ee07e0f09bf5b53/out/wayland_api.rs:3080:141
[INFO] [stdout]      |
[INFO] [stdout] 3080 | ...f.ptr(), WL_SHELL_SURFACE_SET_TRANSIENT, parent.ptr(), x, y, flags) };
[INFO] [stdout]      |                                                                 ^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `FullscreenMethod`.
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/wayland-client/7ee07e0f09bf5b53/out/wayland_api.rs:3118:122
[INFO] [stdout]      |
[INFO] [stdout] 3118 | ...   unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_proxy_marshal, self.ptr(), WL_SHELL_SURFACE_SET_FULLSCREEN, method, framera...
[INFO] [stdout]      |                                                                                                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `FullscreenMethod` does not implement `VaArgSafe`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/wayland-client/7ee07e0f09bf5b53/out/wayland_api.rs:3118:122
[INFO] [stdout]      |
[INFO] [stdout] 3118 | ...   unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_proxy_marshal, self.ptr(), WL_SHELL_SURFACE_SET_FULLSCREEN, method, framera...
[INFO] [stdout]      |                                                                                                                    ^^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `Transient`.
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/wayland-client/7ee07e0f09bf5b53/out/wayland_api.rs:3142:157
[INFO] [stdout]      |
[INFO] [stdout] 3142 | ...L_SURFACE_SET_POPUP, seat.ptr(), serial, parent.ptr(), x, y, flags) };
[INFO] [stdout]      |                                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Transient` does not implement `VaArgSafe`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/wayland-client/7ee07e0f09bf5b53/out/wayland_api.rs:3142:157
[INFO] [stdout]      |
[INFO] [stdout] 3142 | ...L_SURFACE_SET_POPUP, seat.ptr(), serial, parent.ptr(), x, y, flags) };
[INFO] [stdout]      |                                                                 ^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `Transform`.
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/wayland-client/7ee07e0f09bf5b53/out/wayland_api.rs:3678:122
[INFO] [stdout]      |
[INFO] [stdout] 3678 | ...   unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_proxy_marshal, self.ptr(), WL_SURFACE_SET_BUFFER_TRANSFORM, transform) };
[INFO] [stdout]      |                                                                                                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Transform` does not implement `VaArgSafe`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/wayland-client/7ee07e0f09bf5b53/out/wayland_api.rs:3678:122
[INFO] [stdout]      |
[INFO] [stdout] 3678 | ...   unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_proxy_marshal, self.ptr(), WL_SURFACE_SET_BUFFER_TRANSFORM, transform) };
[INFO] [stdout]      |                                                                                                                    ^^^^^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wayland-client` (lib) due to 6 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `AtFlags`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.20.0/src/unistd.rs:854:56
[INFO] [stdout]     |
[INFO] [stdout] 854 |                       args_p.as_ptr(), env_p.as_ptr(), flags);
[INFO] [stdout]     |                                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `AtFlags` does not implement `VaArgSafe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.20.0/src/unistd.rs:854:56
[INFO] [stdout]     |
[INFO] [stdout] 854 |                       args_p.as_ptr(), env_p.as_ptr(), flags);
[INFO] [stdout]     |                                                        ^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nix` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `AtFlags`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.18.0/src/unistd.rs:853:56
[INFO] [stdout]     |
[INFO] [stdout] 853 |                       args_p.as_ptr(), env_p.as_ptr(), flags);
[INFO] [stdout]     |                                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `AtFlags` does not implement `VaArgSafe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.18.0/src/unistd.rs:853:56
[INFO] [stdout]     |
[INFO] [stdout] 853 |                       args_p.as_ptr(), env_p.as_ptr(), flags);
[INFO] [stdout]     |                                                        ^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nix` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "0bd932a6312c8ec0fb87851c7e50085d9bffafcc25fff9cabc0f7152540dc74e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bd932a6312c8ec0fb87851c7e50085d9bffafcc25fff9cabc0f7152540dc74e", kill_on_drop: false }`
[INFO] [stdout] 0bd932a6312c8ec0fb87851c7e50085d9bffafcc25fff9cabc0f7152540dc74e
