[INFO] fetching crate libublk 0.4.8...
[INFO] checking libublk-0.4.8 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate libublk 0.4.8 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate libublk 0.4.8
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate libublk 0.4.8
[INFO] tweaked toml for crates.io crate libublk 0.4.8 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libublk 0.4.8 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 libublk 0.4.8 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:119:1
[INFO] [stderr]     |
[INFO] [stderr] 119 | 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: binary `ublk_user_id` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-7-tc2/source/target/.../ublk_user_id
[INFO] [stderr]   |                                                  ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `ublk-user-id`, convert `bin.name`
[INFO] [stderr]  --> Cargo.toml:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 - name = "ublk_user_id"
[INFO] [stderr] 5 + name = "ublk-user-id"
[INFO] [stderr]   |
[INFO] [stderr] warning: `libublk` (manifest) generated 2 warnings
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] bc4e7dc86962ee46e09a127109491bd9b46fc0a21aa8912d5a06529e8c61620f
[INFO] running `Command { std: "docker" "start" "bc4e7dc86962ee46e09a127109491bd9b46fc0a21aa8912d5a06529e8c61620f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc4e7dc86962ee46e09a127109491bd9b46fc0a21aa8912d5a06529e8c61620f", 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" "bc4e7dc86962ee46e09a127109491bd9b46fc0a21aa8912d5a06529e8c61620f" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc4e7dc86962ee46e09a127109491bd9b46fc0a21aa8912d5a06529e8c61620f", 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" "bc4e7dc86962ee46e09a127109491bd9b46fc0a21aa8912d5a06529e8c61620f" "/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:119:1
[INFO] [stderr]     |
[INFO] [stderr] 119 | 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: binary `ublk_user_id` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /opt/rustwide/target/.../ublk_user_id
[INFO] [stderr]   |                          ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `ublk-user-id`, convert `bin.name`
[INFO] [stderr]  --> Cargo.toml:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 - name = "ublk_user_id"
[INFO] [stderr] 5 + name = "ublk-user-id"
[INFO] [stderr]   |
[INFO] [stderr] warning: `libublk` (manifest) generated 2 warnings
[INFO] [stderr]    Compiling libc v0.2.189
[INFO] [stderr]     Checking futures-io v0.3.34
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking linux-raw-sys v0.12.1
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling syn v3.0.4
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]    Compiling bitflags v2.13.1
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling regex-automata v0.4.18
[INFO] [stderr]     Checking async-channel v2.5.0
[INFO] [stderr]    Compiling bindgen v0.69.5
[INFO] [stderr]     Checking piper v0.2.5
[INFO] [stderr]    Compiling clang-sys v1.9.1
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]     Checking blocking v1.7.0
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling anyhow v1.0.104
[INFO] [stderr]     Checking async-lock v3.4.2
[INFO] [stderr]    Compiling zerocopy v0.8.56
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling io-uring v0.7.14
[INFO] [stderr]     Checking futures-channel v0.3.34
[INFO] [stderr]     Checking async-fs v2.2.0
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]    Compiling regex v1.13.1
[INFO] [stderr]     Checking async-executor v1.14.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling futures-macro v0.3.34
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling derive_setters v0.1.9
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking futures-util v0.3.34
[INFO] [stderr]    Compiling dtor-proc-macro v0.0.6
[INFO] [stderr]     Checking bitmaps v3.2.1
[INFO] [stderr]     Checking futures-timer v3.0.4
[INFO] [stderr]     Checking dtor v0.1.1
[INFO] [stderr]     Checking getrandom v0.4.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling ctor-proc-macro v0.0.6
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking ctor v0.5.0
[INFO] [stderr]     Checking clap v4.6.6
[INFO] [stderr]     Checking daemonize v0.5.0
[INFO] [stderr]     Checking polling v3.11.0
[INFO] [stderr]     Checking tempfile v3.27.0
[INFO] [stderr]     Checking ilog v1.0.3
[INFO] [stderr]     Checking async-signal v0.2.14
[INFO] [stderr]     Checking async-process v2.5.0
[INFO] [stderr]     Checking async-net v2.0.0
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]     Checking serde v1.0.229
[INFO] [stderr]     Checking smol v2.0.2
[INFO] [stderr]     Checking futures-executor v0.3.34
[INFO] [stderr]     Checking futures v0.3.34
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling libublk-rs-sys v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.8
[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" "bc4e7dc86962ee46e09a127109491bd9b46fc0a21aa8912d5a06529e8c61620f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc4e7dc86962ee46e09a127109491bd9b46fc0a21aa8912d5a06529e8c61620f", kill_on_drop: false }`
[INFO] [stdout] bc4e7dc86962ee46e09a127109491bd9b46fc0a21aa8912d5a06529e8c61620f
