[INFO] fetching crate zccache-test-support 1.9.0...
[INFO] checking zccache-test-support-1.9.0 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate zccache-test-support 1.9.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate zccache-test-support 1.9.0
[INFO] finished tweaking crates.io crate zccache-test-support 1.9.0
[INFO] tweaked toml for crates.io crate zccache-test-support 1.9.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zccache-test-support 1.9.0 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 zccache-test-support 1.9.0 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:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | 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: binary `echo_shim` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-6-tc2/source/target/.../echo_shim
[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 `echo-shim`, convert `bin.name`
[INFO] [stderr]  --> Cargo.toml:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 - name = "echo_shim"
[INFO] [stderr] 2 + name = "echo-shim"
[INFO] [stderr]   |
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 | homepage = "https://github.com/zackees/zccache"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 | repository = "https://github.com/zackees/zccache"
[INFO] [stderr]    |              ------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `zccache-test-support` (manifest) generated 3 warnings
[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] caeea6405a247afbc210b48eabcd4eb44a9e0a7ebc0fb297d03de713baf9c1c9
[INFO] running `Command { std: "docker" "start" "caeea6405a247afbc210b48eabcd4eb44a9e0a7ebc0fb297d03de713baf9c1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caeea6405a247afbc210b48eabcd4eb44a9e0a7ebc0fb297d03de713baf9c1c9", 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" "caeea6405a247afbc210b48eabcd4eb44a9e0a7ebc0fb297d03de713baf9c1c9" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caeea6405a247afbc210b48eabcd4eb44a9e0a7ebc0fb297d03de713baf9c1c9", 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" "caeea6405a247afbc210b48eabcd4eb44a9e0a7ebc0fb297d03de713baf9c1c9" "/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:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | 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: binary `echo_shim` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /opt/rustwide/target/.../echo_shim
[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 `echo-shim`, convert `bin.name`
[INFO] [stderr]  --> Cargo.toml:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 - name = "echo_shim"
[INFO] [stderr] 2 + name = "echo-shim"
[INFO] [stderr]   |
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 | homepage = "https://github.com/zackees/zccache"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 | repository = "https://github.com/zackees/zccache"
[INFO] [stderr]    |              ------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `zccache-test-support` (manifest) generated 3 warnings
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking crash-context v0.6.3
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]     Checking bitflags v2.11.0
[INFO] [stderr]     Checking getrandom v0.4.2
[INFO] [stderr]    Compiling tokio-macros v2.6.1
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking rustix v1.1.4
[INFO] [stderr]     Checking crash-handler v0.6.3
[INFO] [stderr]     Checking tokio v1.50.0
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `Signal`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crash-handler-0.6.3/src/linux/state.rs:389:73
[INFO] [stdout]     |
[INFO] [stdout] 389 |             if libc::syscall(libc::SYS_tgkill, std::process::id(), tid, sig) < 0 {
[INFO] [stdout]     |                                                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Signal` does not implement `VaArgSafe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crash-handler-0.6.3/src/linux/state.rs:389:73
[INFO] [stdout]     |
[INFO] [stdout] 389 |             if libc::syscall(libc::SYS_tgkill, std::process::id(), tid, sig) < 0 {
[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 `crash-handler` (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" "caeea6405a247afbc210b48eabcd4eb44a9e0a7ebc0fb297d03de713baf9c1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caeea6405a247afbc210b48eabcd4eb44a9e0a7ebc0fb297d03de713baf9c1c9", kill_on_drop: false }`
[INFO] [stdout] caeea6405a247afbc210b48eabcd4eb44a9e0a7ebc0fb297d03de713baf9c1c9
