[INFO] cloning repository https://github.com/datapythonista/rust_bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/datapythonista/rust_bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatapythonista%2Frust_bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatapythonista%2Frust_bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b71e0e9b25cd7a9b3de23b7ffe02a63cc7ef2613
[INFO] checking datapythonista/rust_bench 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%2Fdatapythonista%2Frust_bench" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/datapythonista/rust_bench
[INFO] finished tweaking git repo https://github.com/datapythonista/rust_bench
[INFO] tweaked toml for git repo https://github.com/datapythonista/rust_bench written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/datapythonista/rust_bench 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/datapythonista/rust_bench 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: binary `rust_bench` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-5-tc2/source/target/.../rust_bench
[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 `rust-bench`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:9:8
[INFO] [stderr]    |
[INFO] [stderr]  9 - name = "rust_bench"
[INFO] [stderr]  9 + name = "rust-bench"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `rust-bench`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:12:19
[INFO] [stderr]    |
[INFO] [stderr] 12 ~ [profile.release]
[INFO] [stderr] 13 + [[bin]]
[INFO] [stderr] 14 + name = "rust-bench"
[INFO] [stderr] 15 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `rust_bench` (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] 1660dc98091f17b70f58f154cf1ade13ec0aa255aea01f4157df26796130929f
[INFO] running `Command { std: "docker" "start" "1660dc98091f17b70f58f154cf1ade13ec0aa255aea01f4157df26796130929f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1660dc98091f17b70f58f154cf1ade13ec0aa255aea01f4157df26796130929f", 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" "1660dc98091f17b70f58f154cf1ade13ec0aa255aea01f4157df26796130929f" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1660dc98091f17b70f58f154cf1ade13ec0aa255aea01f4157df26796130929f", 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" "1660dc98091f17b70f58f154cf1ade13ec0aa255aea01f4157df26796130929f" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `rust_bench` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /opt/rustwide/target/.../rust_bench
[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 `rust-bench`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:9:8
[INFO] [stderr]    |
[INFO] [stderr]  9 - name = "rust_bench"
[INFO] [stderr]  9 + name = "rust-bench"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `rust-bench`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:12:19
[INFO] [stderr]    |
[INFO] [stderr] 12 ~ [profile.release]
[INFO] [stderr] 13 + [[bin]]
[INFO] [stderr] 14 + name = "rust-bench"
[INFO] [stderr] 15 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `rust_bench` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]     Checking num_cpus v1.14.0
[INFO] [stderr]     Checking perf-event-open-sys v4.0.0
[INFO] [stderr]     Checking core_affinity v0.5.10
[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-sys-4.0.0/src/functions.rs:104:43
[INFO] [stdout]     |
[INFO] [stdout] 104 |         libc::ioctl(fd, ioctl as c_ulong, 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-sys-4.0.0/src/functions.rs:104:43
[INFO] [stdout]     |
[INFO] [stdout] 104 |         libc::ioctl(fd, ioctl as c_ulong, 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-sys` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1660dc98091f17b70f58f154cf1ade13ec0aa255aea01f4157df26796130929f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1660dc98091f17b70f58f154cf1ade13ec0aa255aea01f4157df26796130929f", kill_on_drop: false }`
[INFO] [stdout] 1660dc98091f17b70f58f154cf1ade13ec0aa255aea01f4157df26796130929f
