[INFO] cloning repository https://github.com/vivekdk/arka
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vivekdk/arka" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvivekdk%2Farka", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvivekdk%2Farka'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] def6f562eae1b4c33ffeee2f0f9706b36c1d00f9
[INFO] checking vivekdk/arka 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%2Fvivekdk%2Farka" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vivekdk/arka
[INFO] finished tweaking git repo https://github.com/vivekdk/arka
[INFO] tweaked toml for git repo https://github.com/vivekdk/arka written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vivekdk/arka 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/vivekdk/arka 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: unused workspace dependency `tokio-util`
[INFO] [stderr]   --> Cargo.toml:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 | [workspace.dependencies.tokio-util]
[INFO] [stderr]    |                         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_workspace_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the workspace dependency `tokio-util`
[INFO] [stderr] warning: workspace (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] aa3c8159683dc4789c9e6385c732b0b5b53bfce950185e0adf8d1ecc2b64badb
[INFO] running `Command { std: "docker" "start" "aa3c8159683dc4789c9e6385c732b0b5b53bfce950185e0adf8d1ecc2b64badb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa3c8159683dc4789c9e6385c732b0b5b53bfce950185e0adf8d1ecc2b64badb", 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" "aa3c8159683dc4789c9e6385c732b0b5b53bfce950185e0adf8d1ecc2b64badb" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa3c8159683dc4789c9e6385c732b0b5b53bfce950185e0adf8d1ecc2b64badb", 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" "aa3c8159683dc4789c9e6385c732b0b5b53bfce950185e0adf8d1ecc2b64badb" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: unused workspace dependency `tokio-util`
[INFO] [stderr]   --> Cargo.toml:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 | [workspace.dependencies.tokio-util]
[INFO] [stderr]    |                         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_workspace_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the workspace dependency `tokio-util`
[INFO] [stderr] warning: workspace (manifest) generated 1 warning
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking socket2 v0.6.3
[INFO] [stderr]     Checking mio v1.1.1
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]    Compiling rustls v0.23.37
[INFO] [stderr]     Checking getrandom v0.4.2
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]     Checking time v0.3.47
[INFO] [stderr]    Compiling axum-macros v0.5.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking url v2.5.8
[INFO] [stderr]     Checking serde_path_to_error v0.1.20
[INFO] [stderr]     Checking uuid v1.22.0
[INFO] [stderr]     Checking glob v0.3.3
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking tokio v1.50.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking axum-core v0.5.6
[INFO] [stderr]     Checking unicode-normalization v0.1.25
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking rustix v1.1.4
[INFO] [stderr]     Checking stringprep v0.1.5
[INFO] [stderr]     Checking phf_shared v0.13.1
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking whoami v2.1.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking phf v0.13.1
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking mcp-config v0.1.0 (/opt/rustwide/workdir/mcp/config)
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking postgres-protocol v0.6.10
[INFO] [stderr]     Checking postgres-types v0.2.12
[INFO] [stderr]     Checking fd-lock v4.0.4
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `AtFlags`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.28.0/src/unistd.rs:956:13
[INFO] [stdout]     |
[INFO] [stdout] 956 |             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-0.28.0/src/unistd.rs:956:13
[INFO] [stdout]     |
[INFO] [stdout] 956 |             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]     Checking mcp-metadata v0.1.0 (/opt/rustwide/workdir/mcp/metadata)
[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" "aa3c8159683dc4789c9e6385c732b0b5b53bfce950185e0adf8d1ecc2b64badb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3c8159683dc4789c9e6385c732b0b5b53bfce950185e0adf8d1ecc2b64badb", kill_on_drop: false }`
[INFO] [stdout] aa3c8159683dc4789c9e6385c732b0b5b53bfce950185e0adf8d1ecc2b64badb
