[INFO] cloning repository https://github.com/tuchg/implcurl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tuchg/implcurl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuchg%2Fimplcurl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuchg%2Fimplcurl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b1ae2025b0c79f18833b0516c9d870c693c8b81
[INFO] checking tuchg/implcurl 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%2Ftuchg%2Fimplcurl" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tuchg/implcurl
[INFO] finished tweaking git repo https://github.com/tuchg/implcurl
[INFO] tweaked toml for git repo https://github.com/tuchg/implcurl written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tuchg/implcurl 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/tuchg/implcurl 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] 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] 1968388d33c9fb8c5f585151c00a4ef40cc83ad839e763b7e15bf2017b3aed77
[INFO] running `Command { std: "docker" "start" "1968388d33c9fb8c5f585151c00a4ef40cc83ad839e763b7e15bf2017b3aed77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1968388d33c9fb8c5f585151c00a4ef40cc83ad839e763b7e15bf2017b3aed77", 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" "1968388d33c9fb8c5f585151c00a4ef40cc83ad839e763b7e15bf2017b3aed77" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1968388d33c9fb8c5f585151c00a4ef40cc83ad839e763b7e15bf2017b3aed77", 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" "1968388d33c9fb8c5f585151c00a4ef40cc83ad839e763b7e15bf2017b3aed77" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]     Checking regex-syntax v0.8.9
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]    Compiling impcurl-ws v1.1.1 (/opt/rustwide/workdir/crates/impcurl-ws)
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking matchers v0.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]     Checking tokio v1.49.0
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking thiserror v2.0.18
[INFO] [stderr]     Checking impcurl-sys v1.1.1 (/opt/rustwide/workdir/crates/impcurl-sys)
[INFO] [stderr]     Checking tracing-subscriber v0.3.22
[INFO] [stderr]     Checking impcurl v1.1.1 (/opt/rustwide/workdir/crates/impcurl)
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `Option<unsafe extern "C" fn(*mut Curl, i32, i32, *mut c_void, *mut c_void) -> i32>`.
[INFO] [stdout]    --> crates/impcurl/src/lib.rs:170:83
[INFO] [stdout]     |
[INFO] [stdout] 170 |             unsafe { (self.api.multi_setopt)(self.multi, CURLMOPT_SOCKETFUNCTION, callback) };
[INFO] [stdout]     |                                                                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `impcurl` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] warning: type `Option<unsafe extern "C" fn(*mut Curl, i32, i32, *mut c_void, *mut c_void) -> i32>` does not implement `VaArgSafe`
[INFO] [stdout]    --> crates/impcurl/src/lib.rs:170:83
[INFO] [stdout]     |
[INFO] [stdout] 170 |             unsafe { (self.api.multi_setopt)(self.multi, CURLMOPT_SOCKETFUNCTION, callback) };
[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] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `Option<unsafe extern "C" fn(*mut CurlMulti, i64, *mut c_void) -> i32>`.
[INFO] [stdout]    --> crates/impcurl/src/lib.rs:191:82
[INFO] [stdout]     |
[INFO] [stdout] 191 |             unsafe { (self.api.multi_setopt)(self.multi, CURLMOPT_TIMERFUNCTION, callback) };
[INFO] [stdout]     |                                                                                  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Option<unsafe extern "C" fn(*mut CurlMulti, i64, *mut c_void) -> i32>` does not implement `VaArgSafe`
[INFO] [stdout]    --> crates/impcurl/src/lib.rs:191:82
[INFO] [stdout]     |
[INFO] [stdout] 191 |             unsafe { (self.api.multi_setopt)(self.multi, CURLMOPT_TIMERFUNCTION, callback) };
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `Option<unsafe extern "C" fn(*mut Curl, i32, i32, *mut c_void, *mut c_void) -> i32>`.
[INFO] [stdout]    --> crates/impcurl/src/lib.rs:170:83
[INFO] [stdout]     |
[INFO] [stdout] 170 |             unsafe { (self.api.multi_setopt)(self.multi, CURLMOPT_SOCKETFUNCTION, callback) };
[INFO] [stdout]     |                                                                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Option<unsafe extern "C" fn(*mut Curl, i32, i32, *mut c_void, *mut c_void) -> i32>` does not implement `VaArgSafe`
[INFO] [stdout]    --> crates/impcurl/src/lib.rs:170:83
[INFO] [stdout]     |
[INFO] [stdout] 170 |             unsafe { (self.api.multi_setopt)(self.multi, CURLMOPT_SOCKETFUNCTION, callback) };
[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] [stdout] error: CRATER ERROR: C-variadic argument with type `Option<unsafe extern "C" fn(*mut CurlMulti, i64, *mut c_void) -> i32>`.
[INFO] [stdout]    --> crates/impcurl/src/lib.rs:191:82
[INFO] [stdout]     |
[INFO] [stdout] 191 |             unsafe { (self.api.multi_setopt)(self.multi, CURLMOPT_TIMERFUNCTION, callback) };
[INFO] [stdout]     |                                                                                  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Option<unsafe extern "C" fn(*mut CurlMulti, i64, *mut c_void) -> i32>` does not implement `VaArgSafe`
[INFO] [stdout]    --> crates/impcurl/src/lib.rs:191:82
[INFO] [stdout]     |
[INFO] [stdout] 191 |             unsafe { (self.api.multi_setopt)(self.multi, CURLMOPT_TIMERFUNCTION, callback) };
[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] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `impcurl` (lib test) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1968388d33c9fb8c5f585151c00a4ef40cc83ad839e763b7e15bf2017b3aed77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1968388d33c9fb8c5f585151c00a4ef40cc83ad839e763b7e15bf2017b3aed77", kill_on_drop: false }`
[INFO] [stdout] 1968388d33c9fb8c5f585151c00a4ef40cc83ad839e763b7e15bf2017b3aed77
