[INFO] fetching crate simple_comms 2.0.1...
[INFO] checking simple_comms-2.0.1 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate simple_comms 2.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate simple_comms 2.0.1
[INFO] finished tweaking crates.io crate simple_comms 2.0.1
[INFO] tweaked toml for crates.io crate simple_comms 2.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple_comms 2.0.1 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 simple_comms 2.0.1 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:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | 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: `simple_comms` (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] 223f41ad7545d56f0c5dad67ddcfde19a125e89bc2aa007d87e2384afe671009
[INFO] running `Command { std: "docker" "start" "223f41ad7545d56f0c5dad67ddcfde19a125e89bc2aa007d87e2384afe671009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "223f41ad7545d56f0c5dad67ddcfde19a125e89bc2aa007d87e2384afe671009", 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" "223f41ad7545d56f0c5dad67ddcfde19a125e89bc2aa007d87e2384afe671009" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "223f41ad7545d56f0c5dad67ddcfde19a125e89bc2aa007d87e2384afe671009", 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" "223f41ad7545d56f0c5dad67ddcfde19a125e89bc2aa007d87e2384afe671009" "/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:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | 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: `simple_comms` (manifest) generated 1 warning
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking pin-project-lite v0.2.15
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]     Checking bytes v1.9.0
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]    Compiling cc v1.4.4
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]     Checking cpufeatures v0.2.16
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking litemap v0.7.4
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking icu_locid_transform_data v1.5.0
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]     Checking indexmap v2.7.0
[INFO] [stderr]    Compiling openssl v0.10.68
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]    Compiling httparse v1.9.5
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking icu_properties_data v1.5.0
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]    Compiling rustix v0.38.42
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking icu_normalizer_data v1.5.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking http v1.2.0
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling serde_json v1.0.134
[INFO] [stderr]     Checking adler2 v2.0.0
[INFO] [stderr]     Checking rustls-pki-types v1.10.1
[INFO] [stderr]    Compiling rustversion v1.0.18
[INFO] [stderr]     Checking miniz_oxide v0.8.2
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]    Compiling snow v0.10.0
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]     Checking ipnet v2.10.1
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking autocfg v1.4.0
[INFO] [stderr]     Checking version_check v0.9.5
[INFO] [stderr]     Checking block-modes v0.8.1
[INFO] [stderr]     Checking c_linked_list v1.1.1
[INFO] [stderr]     Checking flate2 v1.0.35
[INFO] [stderr]     Checking cfg_rust_features v0.1.2
[INFO] [stderr]     Checking rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling openssl-sys v0.9.104
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]    Compiling syn v2.0.91
[INFO] [stderr]     Checking http-body-util v0.1.2
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking socket2 v0.5.8
[INFO] [stderr]     Checking filetime v0.2.25
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking xattr v1.3.1
[INFO] [stderr]     Checking tempfile v3.14.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking universal-hash v0.5.1
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking tar v0.4.43
[INFO] [stderr]     Checking polyval v0.6.2
[INFO] [stderr]     Checking poly1305 v0.8.0
[INFO] [stderr]     Checking ghash v0.5.1
[INFO] [stderr]     Checking chacha20 v0.9.1
[INFO] [stderr]     Checking aes v0.8.4
[INFO] [stderr]     Checking ctr v0.9.2
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking chacha20poly1305 v0.10.1
[INFO] [stderr]     Checking aes-gcm v0.10.3
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `AtFlags`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.20.2/src/unistd.rs:854:56
[INFO] [stdout]     |
[INFO] [stdout] 854 |                       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-0.20.2/src/unistd.rs:854:56
[INFO] [stdout]     |
[INFO] [stdout] 854 |                       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" "223f41ad7545d56f0c5dad67ddcfde19a125e89bc2aa007d87e2384afe671009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "223f41ad7545d56f0c5dad67ddcfde19a125e89bc2aa007d87e2384afe671009", kill_on_drop: false }`
[INFO] [stdout] 223f41ad7545d56f0c5dad67ddcfde19a125e89bc2aa007d87e2384afe671009
