[INFO] fetching crate micromux-mcp 0.1.4...
[INFO] checking micromux-mcp-0.1.4 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate micromux-mcp 0.1.4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate micromux-mcp 0.1.4
[INFO] finished tweaking crates.io crate micromux-mcp 0.1.4
[INFO] tweaked toml for crates.io crate micromux-mcp 0.1.4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate micromux-mcp 0.1.4 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 micromux-mcp 0.1.4 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: explicit `package.readme` can be inferred
[INFO] [stderr]    --> Cargo.toml:108:1
[INFO] [stderr]     |
[INFO] [stderr] 108 | readme = "README.md"
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]    --> Cargo.toml:103:12
[INFO] [stderr]     |
[INFO] [stderr] 103 | homepage = "https://github.com/romnn/micromux"
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 | repository = "https://github.com/romnn/micromux"
[INFO] [stderr]     |              -----------------------------------
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `micromux-mcp` (manifest) generated 2 warnings
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 697a41951ef398b27d5837fde6fa8b1c27c4669a604f18194fb71c39b9be1f3d
[INFO] running `Command { std: "docker" "start" "697a41951ef398b27d5837fde6fa8b1c27c4669a604f18194fb71c39b9be1f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "697a41951ef398b27d5837fde6fa8b1c27c4669a604f18194fb71c39b9be1f3d", 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" "697a41951ef398b27d5837fde6fa8b1c27c4669a604f18194fb71c39b9be1f3d" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "697a41951ef398b27d5837fde6fa8b1c27c4669a604f18194fb71c39b9be1f3d", 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" "697a41951ef398b27d5837fde6fa8b1c27c4669a604f18194fb71c39b9be1f3d" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]    --> Cargo.toml:108:1
[INFO] [stderr]     |
[INFO] [stderr] 108 | readme = "README.md"
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]    --> Cargo.toml:103:12
[INFO] [stderr]     |
[INFO] [stderr] 103 | homepage = "https://github.com/romnn/micromux"
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 | repository = "https://github.com/romnn/micromux"
[INFO] [stderr]     |              -----------------------------------
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `micromux-mcp` (manifest) generated 2 warnings
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking smallvec v1.15.2
[INFO] [stderr]     Checking linux-raw-sys v0.12.1
[INFO] [stderr]     Checking futures-channel v0.3.34
[INFO] [stderr]    Compiling ref-cast v1.0.26
[INFO] [stderr]    Compiling serde_json v1.0.151
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]     Checking mio v1.2.2
[INFO] [stderr]     Checking aho-corasick v1.1.5
[INFO] [stderr]    Compiling signal-hook v0.4.4
[INFO] [stderr]     Checking unicode-width v0.2.2
[INFO] [stderr]    Compiling cfg_aliases v0.2.2
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]    Compiling getrandom v0.4.3
[INFO] [stderr]     Checking log v0.4.33
[INFO] [stderr]    Compiling nix v0.31.3
[INFO] [stderr]     Checking arrayvec v0.7.8
[INFO] [stderr]     Checking either v1.17.0
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking cursor-icon v1.2.0
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking serial2 v0.2.38
[INFO] [stderr]    Compiling zmij v1.0.23
[INFO] [stderr]     Checking codespan-reporting v0.13.1
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking thread_local v1.1.10
[INFO] [stderr]     Checking home v0.5.12
[INFO] [stderr]     Checking downcast-rs v1.2.1
[INFO] [stderr]     Checking itertools v0.15.0
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]     Checking libyaml-safer v0.3.0
[INFO] [stderr]    Compiling owo-colors v4.3.0
[INFO] [stderr]    Compiling memchr v2.8.3
[INFO] [stderr]     Checking fixedbitset v0.5.7
[INFO] [stderr]     Checking fastrand v2.5.0
[INFO] [stderr]     Checking shell-words v1.1.1
[INFO] [stderr]     Checking digest v0.11.3
[INFO] [stderr]     Checking tracing-subscriber v0.3.23
[INFO] [stderr]     Checking shellexpand v3.1.2
[INFO] [stderr]     Checking directories v6.0.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]    Compiling eyre v0.6.14
[INFO] [stderr]     Checking humantime v2.4.0
[INFO] [stderr]     Checking shlex v2.0.1
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]    Compiling rmcp v2.2.0
[INFO] [stderr]    Compiling color-spantrace v0.3.0
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking sha2 v0.11.0
[INFO] [stderr]     Checking regex-automata v0.4.18
[INFO] [stderr]     Checking vte v0.14.1
[INFO] [stderr]     Checking rustc-demangle v0.1.28
[INFO] [stderr]     Checking unicode-segmentation v1.13.3
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]     Checking indenter v0.3.4
[INFO] [stderr]     Checking strip-ansi-escapes v0.2.1
[INFO] [stderr]    Compiling syn v3.0.3
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]     Checking console v0.16.4
[INFO] [stderr]     Checking similar v3.1.2
[INFO] [stderr]     Checking similar-asserts v2.0.0
[INFO] [stderr]     Checking bitflags v2.13.1
[INFO] [stderr]     Checking indexmap v2.14.0
[INFO] [stderr]     Checking addr2line v0.25.1
[INFO] [stderr]     Checking petgraph v0.8.3
[INFO] [stderr]    Compiling serde_derive_internals v0.30.0
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]     Checking regex v1.13.1
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling futures-macro v0.3.34
[INFO] [stderr]    Compiling ref-cast-impl v1.0.26
[INFO] [stderr]    Compiling thiserror-impl v2.0.20
[INFO] [stderr]    Compiling tokio-macros v2.7.2
[INFO] [stderr]    Compiling async-trait v0.1.92
[INFO] [stderr]    Compiling schemars_derive v1.2.2
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `NonZero<usize>`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.31.3/src/sys/prctl.rs:225:97
[INFO] [stdout]     |
[INFO] [stdout] 225 |     let res = unsafe { libc::prctl(libc::PR_SET_VMA, libc::PR_SET_VMA_ANON_NAME, addr.as_ptr(), length, nameref) };
[INFO] [stdout]     |                                                                                                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `NonZero<usize>` does not implement `VaArgSafe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.31.3/src/sys/prctl.rs:225:97
[INFO] [stdout]     |
[INFO] [stdout] 225 |     let res = unsafe { libc::prctl(libc::PR_SET_VMA, libc::PR_SET_VMA_ANON_NAME, addr.as_ptr(), length, nameref) };
[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 `AtFlags`.
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.31.3/src/unistd.rs:1240:13
[INFO] [stdout]      |
[INFO] [stdout] 1240 |             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-0.31.3/src/unistd.rs:1240:13
[INFO] [stdout]      |
[INFO] [stdout] 1240 |             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] [stderr] error: could not compile `nix` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "697a41951ef398b27d5837fde6fa8b1c27c4669a604f18194fb71c39b9be1f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "697a41951ef398b27d5837fde6fa8b1c27c4669a604f18194fb71c39b9be1f3d", kill_on_drop: false }`
[INFO] [stdout] 697a41951ef398b27d5837fde6fa8b1c27c4669a604f18194fb71c39b9be1f3d
