[INFO] fetching crate linfa-trees 0.8.1...
[INFO] checking linfa-trees-0.8.1 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate linfa-trees 0.8.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate linfa-trees 0.8.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate linfa-trees 0.8.1
[INFO] tweaked toml for crates.io crate linfa-trees 0.8.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate linfa-trees 0.8.1 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 linfa-trees 0.8.1 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:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | 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: `linfa-trees` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f7ac20b7120bb6a98b14c4d51a2a0991ff1f32604cf4614b43a5cc12043b19fa
[INFO] running `Command { std: "docker" "start" "f7ac20b7120bb6a98b14c4d51a2a0991ff1f32604cf4614b43a5cc12043b19fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7ac20b7120bb6a98b14c4d51a2a0991ff1f32604cf4614b43a5cc12043b19fa", 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" "f7ac20b7120bb6a98b14c4d51a2a0991ff1f32604cf4614b43a5cc12043b19fa" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7ac20b7120bb6a98b14c4d51a2a0991ff1f32604cf4614b43a5cc12043b19fa", 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" "f7ac20b7120bb6a98b14c4d51a2a0991ff1f32604cf4614b43a5cc12043b19fa" "/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:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | 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: `linfa-trees` (manifest) generated 1 warning
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling zerocopy v0.8.30
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.5
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]    Compiling cc v1.2.47
[INFO] [stderr]     Checking anstyle v1.0.13
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]     Checking clap_lex v0.7.6
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]    Compiling cpp_demangle v0.4.5
[INFO] [stderr]     Checking uuid v1.18.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]     Checking clap_builder v4.5.53
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking linux-raw-sys v0.11.0
[INFO] [stderr]     Checking debugid v0.8.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]     Checking equivalent v1.0.2
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking bitflags v2.10.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking rustc-demangle v0.1.26
[INFO] [stderr]     Checking bytemuck v1.24.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking hashbrown v0.16.1
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]    Compiling symbolic-demangle v12.17.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.1
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]     Checking rgb v0.8.52
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking num-format v0.4.4
[INFO] [stderr]     Checking indexmap v2.12.1
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking quick-xml v0.26.0
[INFO] [stderr]    Compiling findshlibs v0.10.2
[INFO] [stderr]     Checking clap v4.5.53
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]    Compiling pprof v0.15.0
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking spin v0.10.0
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling linfa v0.8.1
[INFO] [stderr]     Checking csv-core v0.1.13
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking flate2 v1.1.5
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking is-terminal v0.4.17
[INFO] [stderr]     Checking memmap2 v0.9.9
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking symbolic-common v12.17.0
[INFO] [stderr]     Checking tempfile v3.23.0
[INFO] [stderr]     Checking addr2line v0.25.1
[INFO] [stderr]     Checking csv v1.4.0
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `AtFlags`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.26.4/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] [stdout] warning: type `AtFlags` does not implement `VaArgSafe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.26.4/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" "f7ac20b7120bb6a98b14c4d51a2a0991ff1f32604cf4614b43a5cc12043b19fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7ac20b7120bb6a98b14c4d51a2a0991ff1f32604cf4614b43a5cc12043b19fa", kill_on_drop: false }`
[INFO] [stdout] f7ac20b7120bb6a98b14c4d51a2a0991ff1f32604cf4614b43a5cc12043b19fa
