[INFO] fetching crate rustymcp 0.2.0...
[INFO] testing rustymcp-0.2.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rustymcp 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rustymcp 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rustymcp 0.2.0
[INFO] tweaked toml for crates.io crate rustymcp 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustymcp 0.2.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustymcp 0.2.0 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a28c356e8bb50f7e99da23a6b41795d2e2c0ecc18ad4b217de5496e613964759
[INFO] running `Command { std: "docker" "start" "-a" "a28c356e8bb50f7e99da23a6b41795d2e2c0ecc18ad4b217de5496e613964759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a28c356e8bb50f7e99da23a6b41795d2e2c0ecc18ad4b217de5496e613964759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a28c356e8bb50f7e99da23a6b41795d2e2c0ecc18ad4b217de5496e613964759", kill_on_drop: false }`
[INFO] [stdout] a28c356e8bb50f7e99da23a6b41795d2e2c0ecc18ad4b217de5496e613964759
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 034e6d7ed3a1e5f3cda9bd76f4e3b74ef4737d820a19040649ac1b23e66862d2
[INFO] running `Command { std: "docker" "start" "-a" "034e6d7ed3a1e5f3cda9bd76f4e3b74ef4737d820a19040649ac1b23e66862d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling find-msvc-tools v0.1.2
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling http v1.3.1
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling rustls v0.23.32
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling cc v1.2.39
[INFO] [stderr]    Compiling ipnet v2.11.0
[INFO] [stderr]    Compiling openssl-probe v0.1.6
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling webpki-roots v1.0.2
[INFO] [stderr]    Compiling iri-string v0.7.8
[INFO] [stderr]    Compiling anstyle-query v1.1.4
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling anstream v0.6.20
[INFO] [stderr]    Compiling deranged v0.5.4
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling schemars v0.8.22
[INFO] [stderr]    Compiling clap_lex v0.7.5
[INFO] [stderr]    Compiling nu-ansi-term v0.50.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling clap_builder v4.5.48
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling bisection v0.1.0
[INFO] [stderr]    Compiling matchit v0.7.3
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling dotenvy v0.15.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling uuid v1.18.1
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling serde_path_to_error v0.1.20
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling rustls-webpki v0.103.6
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling ref-cast-impl v1.0.24
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling schemars_derive v1.0.4
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling schemars_derive v0.8.22
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling yoke v0.8.0
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling zerotrie v0.2.2
[INFO] [stderr]    Compiling zerovec v0.11.4
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling bstr v1.12.0
[INFO] [stderr]    Compiling fancy-regex v0.13.0
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling clap_derive v4.5.47
[INFO] [stderr]    Compiling semchunk-rs v0.1.1
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling tiktoken-rs v0.7.0
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling rmcp-macros v0.7.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling tracing-appender v0.2.3
[INFO] [stderr]    Compiling tinystr v0.8.1
[INFO] [stderr]    Compiling potential_utf v0.1.3
[INFO] [stderr]    Compiling icu_collections v2.0.0
[INFO] [stderr]    Compiling icu_locale_core v2.0.0
[INFO] [stderr]    Compiling clap v4.5.48
[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/beta-2026-04-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name regex_automata --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-automata-0.4.11/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"' --cfg 'feature="dfa-build"' --cfg 'feature="dfa-onepass"' --cfg 'feature="dfa-search"' --cfg 'feature="hybrid"' --cfg 'feature="meta"' --cfg 'feature="nfa"' --cfg 'feature="nfa-backtrack"' --cfg 'feature="nfa-pikevm"' --cfg 'feature="nfa-thompson"' --cfg 'feature="perf"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="perf-literal-multisubstring"' --cfg 'feature="perf-literal-substring"' --cfg 'feature="std"' --cfg 'feature="syntax"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' --cfg 'feature="unicode-word-boundary"' --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=edd0b3efea026268 -C extra-filename=-40bb07bdfe76700e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-4d1747f2f64261f3.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-b567a4d9673dfb1d.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-3cca980d12fc0e05.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `tokio` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name tokio --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.47.1/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 --warn=unexpected_cfgs --check-cfg 'cfg(fuzzing)' --check-cfg 'cfg(loom)' --check-cfg 'cfg(mio_unsupported_force_poll_poll)' --check-cfg 'cfg(tokio_allow_from_blocking_fd)' --check-cfg 'cfg(tokio_internal_mt_counters)' --check-cfg 'cfg(tokio_no_parking_lot)' --check-cfg 'cfg(tokio_no_tuning_tests)' --check-cfg 'cfg(tokio_taskdump)' --check-cfg 'cfg(tokio_unstable)' --check-cfg 'cfg(tokio_uring)' --check-cfg 'cfg(target_os, values("cygwin"))' --cfg 'feature="bytes"' --cfg 'feature="default"' --cfg 'feature="fs"' --cfg 'feature="full"' --cfg 'feature="io-std"' --cfg 'feature="io-util"' --cfg 'feature="libc"' --cfg 'feature="macros"' --cfg 'feature="mio"' --cfg 'feature="net"' --cfg 'feature="parking_lot"' --cfg 'feature="process"' --cfg 'feature="rt"' --cfg 'feature="rt-multi-thread"' --cfg 'feature="signal"' --cfg 'feature="signal-hook-registry"' --cfg 'feature="socket2"' --cfg 'feature="sync"' --cfg 'feature="time"' --cfg 'feature="tokio-macros"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("bytes", "default", "fs", "full", "io-std", "io-util", "libc", "macros", "mio", "net", "parking_lot", "process", "rt", "rt-multi-thread", "signal", "signal-hook-registry", "socket2", "sync", "test-util", "time", "tokio-macros", "tracing", "windows-sys"))' -C metadata=5f0d6b7ae5af46d4 -C extra-filename=-18f64416cef6974d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-8160c0ff9646c5ab.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-a852b89fc0afb0c2.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-b343bf2f049772cc.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-df259d077679f794.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-63e0d9d6cb6ec6cf.rmeta --extern signal_hook_registry=/opt/rustwide/target/debug/deps/libsignal_hook_registry-8e260114de32178b.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-fc63710c7bc20d80.rmeta --extern tokio_macros=/opt/rustwide/target/debug/deps/libtokio_macros-ab5e22e0d3d0bb4d.so --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "034e6d7ed3a1e5f3cda9bd76f4e3b74ef4737d820a19040649ac1b23e66862d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "034e6d7ed3a1e5f3cda9bd76f4e3b74ef4737d820a19040649ac1b23e66862d2", kill_on_drop: false }`
[INFO] [stdout] 034e6d7ed3a1e5f3cda9bd76f4e3b74ef4737d820a19040649ac1b23e66862d2
