[INFO] fetching crate joule-profiler-source-perf_event 1.0.3...
[INFO] checking joule-profiler-source-perf_event-1.0.3 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate joule-profiler-source-perf_event 1.0.3 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate joule-profiler-source-perf_event 1.0.3
[INFO] finished tweaking crates.io crate joule-profiler-source-perf_event 1.0.3
[INFO] tweaked toml for crates.io crate joule-profiler-source-perf_event 1.0.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate joule-profiler-source-perf_event 1.0.3 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 joule-profiler-source-perf_event 1.0.3 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:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | 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: `joule-profiler-source-perf_event` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1642fc8855fea3b2ed790a205012b51b8552e4de6cd625a04e18df174ea023bf
[INFO] running `Command { std: "docker" "start" "1642fc8855fea3b2ed790a205012b51b8552e4de6cd625a04e18df174ea023bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1642fc8855fea3b2ed790a205012b51b8552e4de6cd625a04e18df174ea023bf", 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" "1642fc8855fea3b2ed790a205012b51b8552e4de6cd625a04e18df174ea023bf" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1642fc8855fea3b2ed790a205012b51b8552e4de6cd625a04e18df174ea023bf", 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" "1642fc8855fea3b2ed790a205012b51b8552e4de6cd625a04e18df174ea023bf" "/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:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | 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: `joule-profiler-source-perf_event` (manifest) generated 1 warning
[INFO] [stderr]     Checking futures-sink v0.3.34
[INFO] [stderr]     Checking futures-io v0.3.34
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]     Checking aho-corasick v1.1.5
[INFO] [stderr]     Checking c-enum v0.2.3
[INFO] [stderr]    Compiling mockall_derive v0.13.1
[INFO] [stderr]    Compiling syn v3.0.3
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]     Checking memmap2 v0.9.11
[INFO] [stderr]     Checking predicates v3.1.4
[INFO] [stderr]     Checking downcast v0.11.0
[INFO] [stderr]     Checking perf-event-open-sys2 v5.0.6
[INFO] [stderr]     Checking futures-channel v0.3.34
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `A`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/perf-event-open-sys2-5.0.6/src/functions.rs:103:37
[INFO] [stdout]     |
[INFO] [stdout] 103 |         libc::ioctl(fd, ioctl as _, arg)
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `A` does not implement `VaArgSafe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/perf-event-open-sys2-5.0.6/src/functions.rs:103:37
[INFO] [stdout]     |
[INFO] [stdout] 103 |         libc::ioctl(fd, ioctl as _, arg)
[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 `perf-event-open-sys2` (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" "1642fc8855fea3b2ed790a205012b51b8552e4de6cd625a04e18df174ea023bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1642fc8855fea3b2ed790a205012b51b8552e4de6cd625a04e18df174ea023bf", kill_on_drop: false }`
[INFO] [stdout] 1642fc8855fea3b2ed790a205012b51b8552e4de6cd625a04e18df174ea023bf
