[INFO] cloning repository https://github.com/vividcode-ai/embedded-xLink-mcp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vividcode-ai/embedded-xLink-mcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvividcode-ai%2Fembedded-xLink-mcp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvividcode-ai%2Fembedded-xLink-mcp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2ea52f45b427ad0838e5ebb514ce9a0f22955bb
[INFO] checking vividcode-ai/embedded-xLink-mcp 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%2Fvividcode-ai%2Fembedded-xLink-mcp" "/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/vividcode-ai/embedded-xLink-mcp
[INFO] finished tweaking git repo https://github.com/vividcode-ai/embedded-xLink-mcp
[INFO] tweaked toml for git repo https://github.com/vividcode-ai/embedded-xLink-mcp written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vividcode-ai/embedded-xLink-mcp 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/vividcode-ai/embedded-xLink-mcp 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:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | 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 `embedded-xLink-mcp` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-7-tc2/source/target/.../embedded-xLink-mcp
[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 `embedded-x-link-mcp`, convert `bin.name`
[INFO] [stderr]  --> Cargo.toml:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 - name = "embedded-xLink-mcp"
[INFO] [stderr] 2 + name = "embedded-x-link-mcp"
[INFO] [stderr]   |
[INFO] [stderr] warning: `embedded-xLink-mcp` (manifest) generated 2 warnings
[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] d85f56ea014f2217e5d3a8b7e2806adc2dad4e5240929f93d1c31b378d77f2f9
[INFO] running `Command { std: "docker" "start" "d85f56ea014f2217e5d3a8b7e2806adc2dad4e5240929f93d1c31b378d77f2f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d85f56ea014f2217e5d3a8b7e2806adc2dad4e5240929f93d1c31b378d77f2f9", 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" "d85f56ea014f2217e5d3a8b7e2806adc2dad4e5240929f93d1c31b378d77f2f9" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d85f56ea014f2217e5d3a8b7e2806adc2dad4e5240929f93d1c31b378d77f2f9", 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" "d85f56ea014f2217e5d3a8b7e2806adc2dad4e5240929f93d1c31b378d77f2f9" "/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:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | 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 `embedded-xLink-mcp` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /opt/rustwide/target/.../embedded-xLink-mcp
[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 `embedded-x-link-mcp`, convert `bin.name`
[INFO] [stderr]  --> Cargo.toml:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 - name = "embedded-xLink-mcp"
[INFO] [stderr] 2 + name = "embedded-x-link-mcp"
[INFO] [stderr]   |
[INFO] [stderr] warning: `embedded-xLink-mcp` (manifest) generated 2 warnings
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]    Compiling icu_properties_data v2.0.1
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling hashbrown v0.15.4
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling writeable v0.6.1
[INFO] [stderr]    Compiling litemap v0.8.0
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]     Checking slab v0.4.10
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]    Compiling rustix v1.0.8
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[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]     Checking aho-corasick v1.1.3
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[INFO] [stderr]     Checking log v0.4.27
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[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling cc v1.2.31
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking linux-raw-sys v0.9.4
[INFO] [stderr]     Checking parking v2.2.1
[INFO] [stderr]     Checking event-listener v5.4.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking parse_int v0.6.0
[INFO] [stderr]     Checking crc32fast v1.5.0
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]     Checking anstyle-query v1.1.3
[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking zero v0.1.3
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]    Compiling hidapi v2.6.3
[INFO] [stderr]     Checking anstream v0.6.19
[INFO] [stderr]     Checking xmas-elf v0.9.1
[INFO] [stderr]     Checking async-lock v3.4.1
[INFO] [stderr]     Checking rmp v0.8.14
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]     Checking socket2 v0.6.0
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking dyn-clone v1.0.20
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking udev v0.8.0
[INFO] [stderr]     Checking toml_write v0.1.2
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]     Checking winnow v0.7.12
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking clap_builder v4.5.42
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]     Checking svg v0.18.0
[INFO] [stderr]     Checking ihex v3.0.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking typed-path v0.10.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking uf2-decode v0.2.0
[INFO] [stderr]     Checking dunce v1.0.5
[INFO] [stderr]     Checking bitfield v0.17.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `&mut [u8]`.
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/hidapi-2.6.3/src/linux_native/ioctl.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / ioctl_readwrite_buf!(
[INFO] [stdout] 19 | |     hidraw_ioc_set_feature,
[INFO] [stdout] 20 | |     HIDRAW_IOC_MAGIC,
[INFO] [stdout] 21 | |     HIDRAW_SET_FEATURE,
[INFO] [stdout] 22 | |     u8
[INFO] [stdout] 23 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `ioctl_readwrite_buf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `&mut [u8]` does not implement `VaArgSafe`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/hidapi-2.6.3/src/linux_native/ioctl.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / ioctl_readwrite_buf!(
[INFO] [stdout] 19 | |     hidraw_ioc_set_feature,
[INFO] [stdout] 20 | |     HIDRAW_IOC_MAGIC,
[INFO] [stdout] 21 | |     HIDRAW_SET_FEATURE,
[INFO] [stdout] 22 | |     u8
[INFO] [stdout] 23 | | );
[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]    = note: this warning originates in the macro `ioctl_readwrite_buf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `&mut [u8]`.
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/hidapi-2.6.3/src/linux_native/ioctl.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / ioctl_readwrite_buf!(
[INFO] [stdout] 25 | |     hidraw_ioc_get_feature,
[INFO] [stdout] 26 | |     HIDRAW_IOC_MAGIC,
[INFO] [stdout] 27 | |     HIDRAW_GET_FEATURE,
[INFO] [stdout] 28 | |     u8
[INFO] [stdout] 29 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `ioctl_readwrite_buf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `&mut [u8]` does not implement `VaArgSafe`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/hidapi-2.6.3/src/linux_native/ioctl.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / ioctl_readwrite_buf!(
[INFO] [stdout] 25 | |     hidraw_ioc_get_feature,
[INFO] [stdout] 26 | |     HIDRAW_IOC_MAGIC,
[INFO] [stdout] 27 | |     HIDRAW_GET_FEATURE,
[INFO] [stdout] 28 | |     u8
[INFO] [stdout] 29 | | );
[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: this warning originates in the macro `ioctl_readwrite_buf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr] error: could not compile `hidapi` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `AtFlags`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.26.4/src/unistd.rs:929:56
[INFO] [stdout]     |
[INFO] [stdout] 929 |                       args_p.as_ptr(), env_p.as_ptr(), flags);
[INFO] [stdout]     |                                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `AtFlags` does not implement `VaArgSafe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.26.4/src/unistd.rs:929:56
[INFO] [stdout]     |
[INFO] [stdout] 929 |                       args_p.as_ptr(), env_p.as_ptr(), flags);
[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 `nix` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d85f56ea014f2217e5d3a8b7e2806adc2dad4e5240929f93d1c31b378d77f2f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d85f56ea014f2217e5d3a8b7e2806adc2dad4e5240929f93d1c31b378d77f2f9", kill_on_drop: false }`
[INFO] [stdout] d85f56ea014f2217e5d3a8b7e2806adc2dad4e5240929f93d1c31b378d77f2f9