[INFO] fetching crate twinleaf-tools 2.3.0...
[INFO] checking twinleaf-tools-2.3.0 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate twinleaf-tools 2.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate twinleaf-tools 2.3.0
[INFO] finished tweaking crates.io crate twinleaf-tools 2.3.0
[INFO] tweaked toml for crates.io crate twinleaf-tools 2.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twinleaf-tools 2.3.0 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 twinleaf-tools 2.3.0 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:95:1
[INFO] [stderr]    |
[INFO] [stderr] 95 | 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: `twinleaf-tools` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7a87a908de73986c56f4333ebf1952a5584c064b90fdc71f67a3e5d03c528dd8
[INFO] running `Command { std: "docker" "start" "7a87a908de73986c56f4333ebf1952a5584c064b90fdc71f67a3e5d03c528dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a87a908de73986c56f4333ebf1952a5584c064b90fdc71f67a3e5d03c528dd8", 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" "7a87a908de73986c56f4333ebf1952a5584c064b90fdc71f67a3e5d03c528dd8" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a87a908de73986c56f4333ebf1952a5584c064b90fdc71f67a3e5d03c528dd8", 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" "7a87a908de73986c56f4333ebf1952a5584c064b90fdc71f67a3e5d03c528dd8" "/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:95:1
[INFO] [stderr]    |
[INFO] [stderr] 95 | 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: `twinleaf-tools` (manifest) generated 1 warning
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking mio v1.2.1
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]    Compiling strum_macros v0.28.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking yoke v0.8.3
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking time v0.3.47
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking line-clipping v0.3.7
[INFO] [stderr]    Compiling rustls v0.23.40
[INFO] [stderr]    Compiling owo-colors v4.3.0
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking tracing-subscriber v0.3.23
[INFO] [stderr]     Checking ring v0.17.14
[INFO] [stderr]     Checking unescaper v0.1.8
[INFO] [stderr]     Checking signal-hook v0.3.18
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking zerovec v0.11.6
[INFO] [stderr]     Checking zerotrie v0.2.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]    Compiling color-spantrace v0.3.0
[INFO] [stderr]     Checking signal-hook-mio v0.2.5
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]     Checking transpose v0.2.3
[INFO] [stderr]     Checking primal-check v0.3.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking webpki-roots v0.26.11
[INFO] [stderr]    Compiling num_enum_derive v0.7.6
[INFO] [stderr]     Checking object v0.37.3
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking console v0.16.3
[INFO] [stderr]     Checking unit-prefix v0.5.2
[INFO] [stderr]     Checking winnow v1.0.3
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking rustfft v6.4.1
[INFO] [stderr]     Checking directories v6.0.0
[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]     Checking console v0.15.11
[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" "7a87a908de73986c56f4333ebf1952a5584c064b90fdc71f67a3e5d03c528dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a87a908de73986c56f4333ebf1952a5584c064b90fdc71f67a3e5d03c528dd8", kill_on_drop: false }`
[INFO] [stdout] 7a87a908de73986c56f4333ebf1952a5584c064b90fdc71f67a3e5d03c528dd8
