[INFO] fetching crate pitlane-mcp 0.10.0...
[INFO] testing pitlane-mcp-0.10.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate pitlane-mcp 0.10.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate pitlane-mcp 0.10.0
[INFO] finished tweaking crates.io crate pitlane-mcp 0.10.0
[INFO] tweaked toml for crates.io crate pitlane-mcp 0.10.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pitlane-mcp 0.10.0 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 pitlane-mcp 0.10.0 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] bbe85b0d24b881676cafea4b724d38d449c94984445a087bbc8d2ff0aaabac27
[INFO] running `Command { std: "docker" "start" "-a" "bbe85b0d24b881676cafea4b724d38d449c94984445a087bbc8d2ff0aaabac27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbe85b0d24b881676cafea4b724d38d449c94984445a087bbc8d2ff0aaabac27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbe85b0d24b881676cafea4b724d38d449c94984445a087bbc8d2ff0aaabac27", kill_on_drop: false }`
[INFO] [stdout] bbe85b0d24b881676cafea4b724d38d449c94984445a087bbc8d2ff0aaabac27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f7a10ce28904d197ef3c7a2379c13e1a6029fa36bba876923d5e1e4472b4c68a
[INFO] running `Command { std: "docker" "start" "-a" "f7a10ce28904d197ef3c7a2379c13e1a6029fa36bba876923d5e1e4472b4c68a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling tree-sitter-language v0.1.7
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling http v1.4.0
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling deranged v0.5.8
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling yoke v0.8.2
[INFO] [stderr]    Compiling ownedbytes v0.9.0
[INFO] [stderr]    Compiling rustls v0.23.37
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling zerovec v0.11.6
[INFO] [stderr]    Compiling zerotrie v0.2.4
[INFO] [stderr]    Compiling bitpacking v0.9.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling erased-serde v0.4.10
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling anstyle-parse v1.0.0
[INFO] [stderr]    Compiling tantivy-fst v0.5.0
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling tantivy-bitpacker v0.10.0
[INFO] [stderr]    Compiling tinystr v0.8.3
[INFO] [stderr]    Compiling potential_utf v0.1.5
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling icu_locale_core v2.2.0
[INFO] [stderr]    Compiling icu_collections v2.2.0
[INFO] [stderr]    Compiling ref-cast-impl v1.0.25
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling colorchoice v1.0.5
[INFO] [stderr]    Compiling murmurhash32 v0.3.1
[INFO] [stderr]    Compiling typetag v0.2.21
[INFO] [stderr]    Compiling anstyle v1.0.14
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling ref-cast v1.0.25
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling mio v1.2.0
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling cc v1.2.58
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling schemars_derive v1.2.1
[INFO] [stderr]    Compiling tokio v1.51.1
[INFO] [stderr]    Compiling icu_provider v2.2.0
[INFO] [stderr]    Compiling time v0.3.47
[INFO] [stderr]    Compiling anstream v1.0.0
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling icu_normalizer v2.2.0
[INFO] [stderr]    Compiling icu_properties v2.2.0
[INFO] [stderr]    Compiling webpki-roots v1.0.6
[INFO] [stderr]    Compiling ordered-float v5.3.0
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling typetag-impl v0.2.21
[INFO] [stderr]    Compiling inventory v0.3.24
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling downcast-rs v2.0.2
[INFO] [stderr]    Compiling rmcp v1.4.0
[INFO] [stderr]    Compiling fastdivide v0.4.2
[INFO] [stderr]    Compiling clap_lex v1.1.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling clap_builder v4.6.0
[INFO] [stderr]    Compiling darling_macro v0.23.0
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling tree-sitter-go v0.25.0
[INFO] [stderr]    Compiling blake3 v1.8.4
[INFO] [stderr]    Compiling tree-sitter-swift v0.7.1
[INFO] [stderr]    Compiling tree-sitter-kotlin-ng v1.1.0
[INFO] [stderr]    Compiling darling v0.23.0
[INFO] [stderr]    Compiling tree-sitter-c v0.24.1
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling bon-macros v3.9.1
[INFO] [stderr]    Compiling tree-sitter-typescript v0.23.2
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling tree-sitter-c-sharp v0.23.1
[INFO] [stderr]    Compiling tree-sitter-rust v0.24.2
[INFO] [stderr]    Compiling tree-sitter-php v0.24.2
[INFO] [stderr]    Compiling tree-sitter-bash v0.25.1
[INFO] [stderr]    Compiling tree-sitter-svelte-ng v1.0.2
[INFO] [stderr]    Compiling tree-sitter-zig v1.1.2
[INFO] [stderr]    Compiling tree-sitter-luau v1.2.0
[INFO] [stderr]    Compiling tree-sitter-javascript v0.25.0
[INFO] [stderr]    Compiling tree-sitter-python v0.25.0
[INFO] [stderr]    Compiling tree-sitter v0.26.8
[INFO] [stderr]    Compiling tree-sitter-solidity v1.2.13
[INFO] [stderr]    Compiling tantivy-common v0.11.0
[INFO] [stderr]    Compiling tree-sitter-ruby v0.23.1
[INFO] [stderr]    Compiling tree-sitter-objc v3.0.2
[INFO] [stderr]    Compiling tree-sitter-cpp v0.23.4
[INFO] [stderr]    Compiling tree-sitter-java v0.23.5
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling tantivy-stacker v0.7.0
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling url v2.5.8
[INFO] [stderr]    Compiling rmcp-macros v1.4.0
[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-1.51.1/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_unstable)' --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-uring", "io-util", "libc", "macros", "mio", "net", "parking_lot", "process", "rt", "rt-multi-thread", "signal", "signal-hook-registry", "socket2", "sync", "taskdump", "test-util", "time", "tokio-macros", "tracing", "windows-sys"))' -C metadata=60ba8ffcc178207c -C extra-filename=-a763fa01f493d7cb --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-00a102391b5f478f.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-cb79651e9cde70a0.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-7809cd0d79ae0bd2.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-0cfb10615a1ff618.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-dbd15b1f007a2c34.rmeta --extern signal_hook_registry=/opt/rustwide/target/debug/deps/libsignal_hook_registry-9ab2c8d40bde4372.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-8f656812fcf6b284.rmeta --extern tokio_macros=/opt/rustwide/target/debug/deps/libtokio_macros-f5c8aaf17832b6dd.so --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f7a10ce28904d197ef3c7a2379c13e1a6029fa36bba876923d5e1e4472b4c68a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7a10ce28904d197ef3c7a2379c13e1a6029fa36bba876923d5e1e4472b4c68a", kill_on_drop: false }`
[INFO] [stdout] f7a10ce28904d197ef3c7a2379c13e1a6029fa36bba876923d5e1e4472b4c68a
