[INFO] cloning repository https://github.com/bigdogs/lkl2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bigdogs/lkl2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbigdogs%2Flkl2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbigdogs%2Flkl2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a6f66e1e32ade91274882f11b60526a4400d326c
[INFO] checking bigdogs/lkl2 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%2Fbigdogs%2Flkl2" "/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/bigdogs/lkl2
[INFO] finished tweaking git repo https://github.com/bigdogs/lkl2
[INFO] tweaked toml for git repo https://github.com/bigdogs/lkl2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bigdogs/lkl2 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/bigdogs/lkl2 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]     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-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] 54dd41501efc4c93918a373c4bce52c7af49ddf59cc60a3e5a4bae8a78d4a358
[INFO] running `Command { std: "docker" "start" "54dd41501efc4c93918a373c4bce52c7af49ddf59cc60a3e5a4bae8a78d4a358", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54dd41501efc4c93918a373c4bce52c7af49ddf59cc60a3e5a4bae8a78d4a358", 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" "54dd41501efc4c93918a373c4bce52c7af49ddf59cc60a3e5a4bae8a78d4a358" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54dd41501efc4c93918a373c4bce52c7af49ddf59cc60a3e5a4bae8a78d4a358", 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" "54dd41501efc4c93918a373c4bce52c7af49ddf59cc60a3e5a4bae8a78d4a358" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.35
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]    Compiling cc v1.2.54
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling bstr v1.12.1
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]    Compiling argh_shared v0.1.13
[INFO] [stderr]     Checking anstream v0.6.21
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking fd-lock v4.0.4
[INFO] [stderr]     Checking jiff v0.2.18
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]     Checking rust-fuzzy-search v0.1.1
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking rustc-demangle v0.1.27
[INFO] [stderr]    Compiling build-target v0.4.0
[INFO] [stderr]    Compiling portable-atomic v1.13.0
[INFO] [stderr]     Checking atomic v0.5.3
[INFO] [stderr]     Checking tokio v1.49.0
[INFO] [stderr]    Compiling flutter_rust_bridge v2.11.1
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]    Compiling libsqlite3-sys v0.28.0
[INFO] [stderr]    Compiling dart-sys v4.1.5
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/40527f3e444fde1deb361751bdef9b9e11d1b971/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.114/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat,unused-externs-silent --crate-type lib --emit=dep-info,metadata,link -Z embed-metadata=no -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=ff826899ac177af3 -C extra-filename=-3ddebd7ea4f36d00 --out-dir /opt/rustwide/target/debug/build/syn/3ddebd7ea4f36d00/out -L dependency=/opt/rustwide/target/debug/build/proc-macro2/6afcd3f312b28600/out -L dependency=/opt/rustwide/target/debug/build/unicode-ident/512c5f3d4313e323/out --extern proc_macro2=/opt/rustwide/target/debug/build/proc-macro2/6afcd3f312b28600/out/libproc_macro2-6afcd3f312b28600.rmeta --extern quote=/opt/rustwide/target/debug/build/quote/1d6bb1ecb5e14f67/out/libquote-1d6bb1ecb5e14f67.rmeta --extern unicode_ident=/opt/rustwide/target/debug/build/unicode-ident/512c5f3d4313e323/out/libunicode_ident-512c5f3d4313e323.rmeta --cap-lints allow --cap-lints=forbid --cfg crater_hack --force-warn invalid-c-variadic-arguments --force-warn=unused_crate_dependencies` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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-0.30.1/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-0.30.1/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-0.30.1/src/unistd.rs:1233:13
[INFO] [stdout]      |
[INFO] [stdout] 1233 |             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-0.30.1/src/unistd.rs:1233:13
[INFO] [stdout]      |
[INFO] [stdout] 1233 |             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] running `Command { std: "docker" "inspect" "54dd41501efc4c93918a373c4bce52c7af49ddf59cc60a3e5a4bae8a78d4a358", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54dd41501efc4c93918a373c4bce52c7af49ddf59cc60a3e5a4bae8a78d4a358", kill_on_drop: false }`
[INFO] [stdout] 54dd41501efc4c93918a373c4bce52c7af49ddf59cc60a3e5a4bae8a78d4a358
