[INFO] fetching crate surfman-chains 0.8.0...
[INFO] checking surfman-chains-0.8.0 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate surfman-chains 0.8.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate surfman-chains 0.8.0
[INFO] finished tweaking crates.io crate surfman-chains 0.8.0
[INFO] tweaked toml for crates.io crate surfman-chains 0.8.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate surfman-chains 0.8.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 171 packages to highest compatible versions
[INFO] [stderr]       Adding block-sys v0.1.0-beta.1 (available: v0.1.0-beta.2)
[INFO] [stderr]       Adding block2 v0.2.0-alpha.6 (available: v0.2.0)
[INFO] [stderr]       Adding objc-sys v0.2.0-beta.2 (available: v0.2.0-beta.3)
[INFO] [stderr]       Adding objc2 v0.3.0-beta.3.patch-leaks.3 (available: v0.3.0-beta.5)
[INFO] [stderr]       Adding objc2-encode v2.0.0-pre.2 (available: v2.0.0)
[INFO] [stderr]       Adding surfman v0.7.2 (available: v0.13.0)
[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-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f6bfb53d61a85f2f2e65980d7e4af9e38b136aa0889523e7459efa844f84b9d1
[INFO] running `Command { std: "docker" "start" "f6bfb53d61a85f2f2e65980d7e4af9e38b136aa0889523e7459efa844f84b9d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6bfb53d61a85f2f2e65980d7e4af9e38b136aa0889523e7459efa844f84b9d1", 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" "f6bfb53d61a85f2f2e65980d7e4af9e38b136aa0889523e7459efa844f84b9d1" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6bfb53d61a85f2f2e65980d7e4af9e38b136aa0889523e7459efa844f84b9d1", 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" "f6bfb53d61a85f2f2e65980d7e4af9e38b136aa0889523e7459efa844f84b9d1" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling xml-rs v0.8.29
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking simd-adler32 v0.3.10
[INFO] [stderr]    Compiling crc32fast v1.5.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking libloading v0.8.9
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling slotmap v1.1.1
[INFO] [stderr]     Checking downcast-rs v1.2.1
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.1
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]     Checking bytemuck v1.25.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ttf-parser v0.25.1
[INFO] [stderr]     Checking strict-num v0.1.1
[INFO] [stderr]     Checking xcursor v0.3.11
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.10
[INFO] [stderr]    Compiling wayland-sys v0.30.1
[INFO] [stderr]     Checking dlib v0.5.3
[INFO] [stderr]     Checking miniz_oxide v0.9.1
[INFO] [stderr]     Checking fdeflate v0.3.7
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking nix v0.25.1
[INFO] [stderr]     Checking tiny-skia-path v0.8.4
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]     Checking raw-window-handle v0.5.2
[INFO] [stderr]     Checking surfman-chains-api v0.2.0
[INFO] [stderr]     Checking flate2 v1.1.10
[INFO] [stderr]     Checking png v0.17.16
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking euclid v0.22.14
[INFO] [stderr]     Checking tiny-skia v0.8.4
[INFO] [stderr]     Checking wayland-commons v0.29.5
[INFO] [stderr]    Compiling surfman v0.7.2
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `AtFlags`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.25.1/src/unistd.rs:929:56
[INFO] [stdout]     |
[INFO] [stdout] 929 |                       args_p.as_ptr(), env_p.as_ptr(), flags);
[INFO] [stdout]     |                                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sparkle v0.1.26
[INFO] [stdout] warning: type `AtFlags` does not implement `VaArgSafe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.25.1/src/unistd.rs:929:56
[INFO] [stdout]     |
[INFO] [stdout] 929 |                       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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f6bfb53d61a85f2f2e65980d7e4af9e38b136aa0889523e7459efa844f84b9d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6bfb53d61a85f2f2e65980d7e4af9e38b136aa0889523e7459efa844f84b9d1", kill_on_drop: false }`
[INFO] [stdout] f6bfb53d61a85f2f2e65980d7e4af9e38b136aa0889523e7459efa844f84b9d1
