[INFO] fetching crate rust-mcp-server 0.2.5...
[INFO] testing rust-mcp-server-0.2.5 against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate rust-mcp-server 0.2.5 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate rust-mcp-server 0.2.5
[INFO] finished tweaking crates.io crate rust-mcp-server 0.2.5
[INFO] tweaked toml for crates.io crate rust-mcp-server 0.2.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-mcp-server 0.2.5 on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust-mcp-server 0.2.5 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf_generator v0.13.1
[INFO] [stderr]   Downloaded rust-mcp-sdk v0.6.3
[INFO] [stderr]   Downloaded rust-mcp-macros v0.5.1
[INFO] [stderr]   Downloaded phf_shared v0.13.1
[INFO] [stderr]   Downloaded wasi v0.14.4+wasi-0.2.4
[INFO] [stderr]   Downloaded phf v0.13.1
[INFO] [stderr]   Downloaded rust-mcp-transport v0.5.1
[INFO] [stderr]   Downloaded phf_macros v0.13.1
[INFO] [stderr]   Downloaded rust-mcp-schema v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71799195fb602ae8234d8d2ae3212e6e69438ebc3ffb59c2d35067765f2e31f7
[INFO] running `Command { std: "docker" "start" "-a" "71799195fb602ae8234d8d2ae3212e6e69438ebc3ffb59c2d35067765f2e31f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71799195fb602ae8234d8d2ae3212e6e69438ebc3ffb59c2d35067765f2e31f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71799195fb602ae8234d8d2ae3212e6e69438ebc3ffb59c2d35067765f2e31f7", kill_on_drop: false }`
[INFO] [stdout] 71799195fb602ae8234d8d2ae3212e6e69438ebc3ffb59c2d35067765f2e31f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 389f20296c65cfaf9b9218d76e528b365594f6d44ddedf7bb2781c8629a1324e
[INFO] running `Command { std: "docker" "start" "-a" "389f20296c65cfaf9b9218d76e528b365594f6d44ddedf7bb2781c8629a1324e", kill_on_drop: false }`
[INFO] [stderr]    Compiling find-msvc-tools v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling regex-automata v0.4.10
[INFO] [stderr]    Compiling phf_shared v0.13.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling cc v1.2.36
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling phf_generator v0.13.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling indexmap v2.11.0
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling ref-cast-impl v1.0.24
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling nu-ansi-term v0.50.1
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling time v0.3.43
[INFO] [stderr]    Compiling clap_derive v4.5.47
[INFO] [stderr]    Compiling clap_builder v4.5.47
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling phf_macros v0.13.1
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling rust-mcp-server v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `regex-automata` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/d98a5da813da67eb189387b8ccfb73cf481275d8/bin/rustc --crate-name regex_automata --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-automata-0.4.10/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="dfa-build"' --cfg 'feature="dfa-search"' --cfg 'feature="nfa-thompson"' --cfg 'feature="std"' --cfg 'feature="syntax"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "dfa", "dfa-build", "dfa-onepass", "dfa-search", "hybrid", "internal-instrument", "internal-instrument-pikevm", "logging", "meta", "nfa", "nfa-backtrack", "nfa-pikevm", "nfa-thompson", "perf", "perf-inline", "perf-literal", "perf-literal-multisubstring", "perf-literal-substring", "std", "syntax", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment", "unicode-word-boundary"))' -C metadata=8d03f6f824015d84 -C extra-filename=-c93a207ad253705f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-55bc40e7d7bb3303.rmeta --cap-lints allow --cap-lints=forbid -Copt-level=3` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "389f20296c65cfaf9b9218d76e528b365594f6d44ddedf7bb2781c8629a1324e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "389f20296c65cfaf9b9218d76e528b365594f6d44ddedf7bb2781c8629a1324e", kill_on_drop: false }`
[INFO] [stdout] 389f20296c65cfaf9b9218d76e528b365594f6d44ddedf7bb2781c8629a1324e