[INFO] fetching crate pargen 0.1.3...
[INFO] testing pargen-0.1.3 against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] extracting crate pargen 0.1.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate pargen 0.1.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate pargen 0.1.3
[INFO] tweaked toml for crates.io crate pargen 0.1.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pargen 0.1.3 on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pargen 0.1.3 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f2076931c1fdbaebd8c11bc98256af4d52a62e80159db3b089d22fea68f6125e
[INFO] running `Command { std: "docker" "start" "f2076931c1fdbaebd8c11bc98256af4d52a62e80159db3b089d22fea68f6125e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2076931c1fdbaebd8c11bc98256af4d52a62e80159db3b089d22fea68f6125e", 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" "f2076931c1fdbaebd8c11bc98256af4d52a62e80159db3b089d22fea68f6125e" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2076931c1fdbaebd8c11bc98256af4d52a62e80159db3b089d22fea68f6125e", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f2076931c1fdbaebd8c11bc98256af4d52a62e80159db3b089d22fea68f6125e" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling libc v0.2.189
[INFO] [stderr]    Compiling zmij v1.0.23
[INFO] [stderr]    Compiling pin-project-lite v0.2.17
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]    Compiling smallvec v1.15.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling futures-sink v0.3.33
[INFO] [stderr]    Compiling memchr v2.8.3
[INFO] [stderr]    Compiling futures-core v0.3.33
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling futures-channel v0.3.33
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling serde_json v1.0.151
[INFO] [stderr]    Compiling futures-task v0.3.33
[INFO] [stderr]    Compiling futures-io v0.3.33
[INFO] [stderr]    Compiling ref-cast v1.0.26
[INFO] [stderr]    Compiling anstyle-parse v1.0.0
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling anstyle-query v1.1.5
[INFO] [stderr]    Compiling itoa v1.0.18
[INFO] [stderr]    Compiling bytes v1.12.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.65
[INFO] [stderr]    Compiling colorchoice v1.0.5
[INFO] [stderr]    Compiling thiserror v2.0.19
[INFO] [stderr]    Compiling anstyle v1.0.14
[INFO] [stderr]    Compiling regex-syntax v0.8.11
[INFO] [stderr]    Compiling dyn-clone v1.0.20
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling log v0.4.33
[INFO] [stderr]    Compiling anstream v1.0.0
[INFO] [stderr]    Compiling clap_lex v1.1.0
[INFO] [stderr]    Compiling syn v3.0.3
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling clap_builder v4.6.2
[INFO] [stderr]    Compiling anyhow v1.0.104
[INFO] [stderr]    Compiling thread_local v1.1.10
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling pastey v0.2.3
[INFO] [stderr]    Compiling nu-ansi-term v0.50.3
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling mio v1.2.2
[INFO] [stderr]    Compiling socket2 v0.6.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling regex-automata v0.4.16
[INFO] [stderr]    Compiling serde_derive_internals v0.30.0
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling tokio-macros v2.7.2
[INFO] [stderr]    Compiling ref-cast-impl v1.0.26
[INFO] [stderr]    Compiling thiserror-impl v2.0.19
[INFO] [stderr]    Compiling async-trait v0.1.91
[INFO] [stderr]    Compiling clap_derive v4.6.4
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling tokio v1.53.1
[INFO] [stderr]    Compiling schemars_derive v1.2.2
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling futures-macro v0.3.33
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling clap v4.6.4
[INFO] [stderr]    Compiling futures-util v0.3.33
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling tracing-subscriber v0.3.23
[INFO] [stderr]    Compiling darling_macro v0.23.0
[INFO] [stderr]    Compiling chrono v0.4.45
[INFO] [stderr]    Compiling darling v0.23.0
[INFO] [stderr]    Compiling rmcp-macros v0.12.0
[INFO] [stderr]    Compiling schemars v1.2.2
[INFO] [stderr]    Compiling futures-executor v0.3.33
[INFO] [stderr]    Compiling futures v0.3.33
[INFO] [stderr]    Compiling tokio-util v0.7.19
[INFO] [stderr]    Compiling rmcp v0.12.0
[INFO] [stderr]    Compiling pargen v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1m 26s
[INFO] running `Command { std: "docker" "inspect" "f2076931c1fdbaebd8c11bc98256af4d52a62e80159db3b089d22fea68f6125e", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f2076931c1fdbaebd8c11bc98256af4d52a62e80159db3b089d22fea68f6125e" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.55
[INFO] [stderr]    Compiling regex-syntax v0.8.11
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling crossbeam-utils v0.8.22
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling zerocopy-derive v0.8.55
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.20
[INFO] [stderr]    Compiling getrandom v0.4.3
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.7
[INFO] [stderr]    Compiling bitflags v2.13.1
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling fastrand v2.5.0
[INFO] [stderr]    Compiling either v1.17.0
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling console v0.16.4
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stderr]    Compiling rand v0.9.5
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling chrono v0.4.45
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling rusty-fork v0.3.1
[INFO] [stderr]    Compiling insta v1.48.0
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling schemars v1.2.2
[INFO] [stderr]    Compiling regex-automata v0.4.16
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling rmcp v0.12.0
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling regex v1.13.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.23
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling proptest v1.11.0
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling pargen v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `pargen` (bin "pargen-mcp")
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.99.0-beta.1-x86_64-unknown-linux-gnu/bin/rustc --crate-name pargen_mcp --edition=2024 src/bin/pargen-mcp.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C opt-level=3 -C lto -C codegen-units=1 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=f7c1d65790c226bd -C extra-filename=-e246fdb6ffa035b3 --out-dir /opt/rustwide/target/release/deps -C strip=symbols -L dependency=/opt/rustwide/target/release/deps --extern anyhow=/opt/rustwide/target/release/deps/libanyhow-eacaa5648b41aa75.rlib --extern clap=/opt/rustwide/target/release/deps/libclap-8b6c89a537e59879.rlib --extern pargen=/opt/rustwide/target/release/deps/libpargen-baea40a1321447a6.rlib --extern rmcp=/opt/rustwide/target/release/deps/librmcp-000f65c7bad87811.rlib --extern schemars=/opt/rustwide/target/release/deps/libschemars-db98c738bcb6dd5a.rlib --extern serde=/opt/rustwide/target/release/deps/libserde-455f3ed60c1565a0.rlib --extern serde_json=/opt/rustwide/target/release/deps/libserde_json-f0e6e13cbc8e3590.rlib --extern thiserror=/opt/rustwide/target/release/deps/libthiserror-2b46e40b3a20ddd6.rlib --extern tokio=/opt/rustwide/target/release/deps/libtokio-6576b6679d234c60.rlib --extern tracing=/opt/rustwide/target/release/deps/libtracing-db767894a73381d3.rlib --extern tracing_subscriber=/opt/rustwide/target/release/deps/libtracing_subscriber-40371716eee91b5c.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f2076931c1fdbaebd8c11bc98256af4d52a62e80159db3b089d22fea68f6125e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2076931c1fdbaebd8c11bc98256af4d52a62e80159db3b089d22fea68f6125e", kill_on_drop: false }`
[INFO] [stdout] f2076931c1fdbaebd8c11bc98256af4d52a62e80159db3b089d22fea68f6125e