[INFO] cloning repository https://github.com/the-wendell/margin_calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/the-wendell/margin_calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-wendell%2Fmargin_calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-wendell%2Fmargin_calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d698d65292c77340375c66975732c6c2faa784d
[INFO] checking the-wendell/margin_calculator 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%2Fthe-wendell%2Fmargin_calculator" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/the-wendell/margin_calculator
[INFO] finished tweaking git repo https://github.com/the-wendell/margin_calculator
[INFO] tweaked toml for git repo https://github.com/the-wendell/margin_calculator written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/the-wendell/margin_calculator 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/the-wendell/margin_calculator 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: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `margin_calculator` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 8372033549e2f1bb1a8200ee74af0d00be80913db34b58ba7c1d06f2e02e3c8e
[INFO] running `Command { std: "docker" "start" "8372033549e2f1bb1a8200ee74af0d00be80913db34b58ba7c1d06f2e02e3c8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8372033549e2f1bb1a8200ee74af0d00be80913db34b58ba7c1d06f2e02e3c8e", 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" "8372033549e2f1bb1a8200ee74af0d00be80913db34b58ba7c1d06f2e02e3c8e" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8372033549e2f1bb1a8200ee74af0d00be80913db34b58ba7c1d06f2e02e3c8e", 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" "8372033549e2f1bb1a8200ee74af0d00be80913db34b58ba7c1d06f2e02e3c8e" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `margin_calculator` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libcruby-sys v0.7.5
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking cstr-macro v0.1.0
[INFO] [stderr]     Checking helix v0.7.5
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `VALUE`.
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/helix-0.7.5/src/errors.rs:41:91
[INFO] [stdout]    |
[INFO] [stdout] 41 |             ErrorMessage::Dynamic(value) => rb_raise(self.class.to_value(), SPRINTF_TO_S, value)
[INFO] [stdout]    |                                                                                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `VALUE` does not implement `VaArgSafe`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/helix-0.7.5/src/errors.rs:41:91
[INFO] [stdout]    |
[INFO] [stdout] 41 |             ErrorMessage::Dynamic(value) => rb_raise(self.class.to_value(), SPRINTF_TO_S, value)
[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 `helix` (lib) due to 1 previous error; 160 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8372033549e2f1bb1a8200ee74af0d00be80913db34b58ba7c1d06f2e02e3c8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8372033549e2f1bb1a8200ee74af0d00be80913db34b58ba7c1d06f2e02e3c8e", kill_on_drop: false }`
[INFO] [stdout] 8372033549e2f1bb1a8200ee74af0d00be80913db34b58ba7c1d06f2e02e3c8e