[INFO] cloning repository https://github.com/darkclad/fs-mcp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/darkclad/fs-mcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarkclad%2Ffs-mcp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarkclad%2Ffs-mcp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c087bcf1b7423f73fc48fe4f9cef536a9d60db7
[INFO] checking darkclad/fs-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%2Fdarkclad%2Ffs-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] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/darkclad/fs-mcp
[INFO] finished tweaking git repo https://github.com/darkclad/fs-mcp
[INFO] tweaked toml for git repo https://github.com/darkclad/fs-mcp written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/darkclad/fs-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/darkclad/fs-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: unused field `repository` in `workspace.package`
[INFO] [stderr]    --> Cargo.toml:132:1
[INFO] [stderr]     |
[INFO] [stderr] 132 | repository = "https://example.invalid/FileSystemMCP"
[INFO] [stderr]     | ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::unused_workspace_package_fields` is set to `warn` by default
[INFO] [stderr] help: consider removing the field `workspace.package.repository`
[INFO] [stderr] warning: workspace (manifest) generated 1 warning
[INFO] [stderr] warning: binary `FileSystemMCP-console` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-7-tc2/source/target/.../FileSystemMCP-console
[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 `file-system-mcp-console`, convert `bin.name`
[INFO] [stderr]   --> crates/mcp-console/Cargo.toml:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 - name = "FileSystemMCP-console"
[INFO] [stderr] 14 + name = "file-system-mcp-console"
[INFO] [stderr]    |
[INFO] [stderr] warning: `mcp-console` (manifest) generated 1 warning
[INFO] [stderr] warning: binary `FileSystemMCP` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-7-tc2/source/target/.../FileSystemMCP
[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 `file-system-mcp`, convert `bin.name`
[INFO] [stderr]   --> crates/mcp-server/Cargo.toml:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 - name = "FileSystemMCP"
[INFO] [stderr] 15 + name = "file-system-mcp"
[INFO] [stderr]    |
[INFO] [stderr] warning: `mcp-server` (manifest) generated 1 warning
[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] acf84b0dd3cd5884be8076764e69b2898561ff40171f87bd8ab9465c23ffb370
[INFO] running `Command { std: "docker" "start" "acf84b0dd3cd5884be8076764e69b2898561ff40171f87bd8ab9465c23ffb370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acf84b0dd3cd5884be8076764e69b2898561ff40171f87bd8ab9465c23ffb370", 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" "acf84b0dd3cd5884be8076764e69b2898561ff40171f87bd8ab9465c23ffb370" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acf84b0dd3cd5884be8076764e69b2898561ff40171f87bd8ab9465c23ffb370", 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" "acf84b0dd3cd5884be8076764e69b2898561ff40171f87bd8ab9465c23ffb370" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: unused field `repository` in `workspace.package`
[INFO] [stderr]    --> Cargo.toml:132:1
[INFO] [stderr]     |
[INFO] [stderr] 132 | repository = "https://example.invalid/FileSystemMCP"
[INFO] [stderr]     | ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::unused_workspace_package_fields` is set to `warn` by default
[INFO] [stderr] help: consider removing the field `workspace.package.repository`
[INFO] [stderr] warning: workspace (manifest) generated 1 warning
[INFO] [stderr] warning: binary `FileSystemMCP-console` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /opt/rustwide/target/.../FileSystemMCP-console
[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 `file-system-mcp-console`, convert `bin.name`
[INFO] [stderr]   --> crates/mcp-console/Cargo.toml:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 - name = "FileSystemMCP-console"
[INFO] [stderr] 14 + name = "file-system-mcp-console"
[INFO] [stderr]    |
[INFO] [stderr] warning: `mcp-console` (manifest) generated 1 warning
[INFO] [stderr] warning: binary `FileSystemMCP` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /opt/rustwide/target/.../FileSystemMCP
[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 `file-system-mcp`, convert `bin.name`
[INFO] [stderr]   --> crates/mcp-server/Cargo.toml:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 - name = "FileSystemMCP"
[INFO] [stderr] 15 + name = "file-system-mcp"
[INFO] [stderr]    |
[INFO] [stderr] warning: `mcp-server` (manifest) generated 1 warning
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling schemars v0.8.22
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking mio v1.2.0
[INFO] [stderr]     Checking getrandom v0.4.2
[INFO] [stderr]    Compiling io-lifetimes v2.0.4
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]    Compiling blake3 v1.8.5
[INFO] [stderr]    Compiling libsqlite3-sys v0.30.1
[INFO] [stderr]     Checking constant_time_eq v0.4.2
[INFO] [stderr]     Checking rayon v1.12.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking uuid v1.23.1
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking grep-matcher v0.1.8
[INFO] [stderr]     Checking dunce v1.0.5
[INFO] [stderr]     Checking encoding_rs_io v0.1.7
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking fallible-iterator v0.3.0
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking io-extras v0.18.4
[INFO] [stderr]     Checking xxhash-rust v0.8.15
[INFO] [stderr]    Compiling redb v2.6.3
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking flume v0.11.1
[INFO] [stderr]     Checking notify-types v2.1.0
[INFO] [stderr]     Checking inotify v0.11.1
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling vfs-preview v0.0.1 (/opt/rustwide/workdir/crates/vfs-preview)
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]    Compiling mcp-server v0.0.1 (/opt/rustwide/workdir/crates/mcp-server)
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]     Checking notify v8.2.0
[INFO] [stderr]     Checking hashlink v0.9.1
[INFO] [stderr]     Checking jwalk v0.8.1
[INFO] [stderr]     Checking sysinfo v0.32.1
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `AtFlags`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.28.0/src/unistd.rs:956:13
[INFO] [stdout]     |
[INFO] [stdout] 956 |             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-0.28.0/src/unistd.rs:956:13
[INFO] [stdout]     |
[INFO] [stdout] 956 |             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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "acf84b0dd3cd5884be8076764e69b2898561ff40171f87bd8ab9465c23ffb370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acf84b0dd3cd5884be8076764e69b2898561ff40171f87bd8ab9465c23ffb370", kill_on_drop: false }`
[INFO] [stdout] acf84b0dd3cd5884be8076764e69b2898561ff40171f87bd8ab9465c23ffb370
