[INFO] fetching crate rmcp-memex 0.5.0...
[INFO] testing rmcp-memex-0.5.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rmcp-memex 0.5.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rmcp-memex 0.5.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rmcp-memex 0.5.0
[INFO] tweaked toml for crates.io crate rmcp-memex 0.5.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmcp-memex 0.5.0 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 rmcp-memex 0.5.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 554e7a22d586c8b0c1565ba32171f3ebdba61399c0532bd4b8d2b7615a3a223c
[INFO] running `Command { std: "docker" "start" "-a" "554e7a22d586c8b0c1565ba32171f3ebdba61399c0532bd4b8d2b7615a3a223c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "554e7a22d586c8b0c1565ba32171f3ebdba61399c0532bd4b8d2b7615a3a223c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "554e7a22d586c8b0c1565ba32171f3ebdba61399c0532bd4b8d2b7615a3a223c", kill_on_drop: false }`
[INFO] [stdout] 554e7a22d586c8b0c1565ba32171f3ebdba61399c0532bd4b8d2b7615a3a223c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bbcb2460f4a15ff8e5e97f283e8e7269d4bb2bf795aefe1aaf4bfca3296b6f62
[INFO] running `Command { std: "docker" "start" "-a" "bbcb2460f4a15ff8e5e97f283e8e7269d4bb2bf795aefe1aaf4bfca3296b6f62", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling indexmap v2.14.0
[INFO] [stderr]    Compiling chrono-tz v0.10.4
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling phf_shared v0.12.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling semver v1.0.28
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling zerofrom v0.1.7
[INFO] [stderr]    Compiling rustls v0.23.37
[INFO] [stderr]    Compiling phf v0.12.1
[INFO] [stderr]    Compiling webpki-roots v1.0.6
[INFO] [stderr]    Compiling yoke v0.8.2
[INFO] [stderr]    Compiling litemap v0.8.2
[INFO] [stderr]    Compiling writeable v0.6.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling sqlparser_derive v0.3.0
[INFO] [stderr]    Compiling zerovec v0.11.6
[INFO] [stderr]    Compiling zerotrie v0.2.4
[INFO] [stderr]    Compiling compression-core v0.4.31
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling flatbuffers v25.12.19
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling compression-codecs v0.4.37
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling iri-string v0.7.12
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling tinystr v0.8.3
[INFO] [stderr]    Compiling potential_utf v0.1.5
[INFO] [stderr]    Compiling icu_locale_core v2.2.0
[INFO] [stderr]    Compiling icu_collections v2.2.0
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling cc v1.2.60
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling mio v1.2.0
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling arrow-schema v56.2.0
[INFO] [stderr]    Compiling icu_provider v2.2.0
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling strum v0.26.3
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling comfy-table v7.1.2
[INFO] [stderr]    Compiling tokio v1.51.1
[INFO] [stderr]    Compiling icu_normalizer v2.2.0
[INFO] [stderr] error: could not compile `regex-syntax` (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_syntax --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-syntax-0.8.10/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 --allow=unexpected_cfgs --check-cfg 'cfg(docsrs_regex)' --cfg 'feature="std"' --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"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("arbitrary", "default", "std", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment"))' -C metadata=d99500bc25898025 -C extra-filename=-f800cfde484eb880 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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 `zerocopy` (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 zerocopy --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zerocopy-0.8.48/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="derive"' --cfg 'feature="simd"' --cfg 'feature="zerocopy-derive"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("__internal_use_only_features_that_work_on_stable", "alloc", "derive", "float-nightly", "simd", "simd-nightly", "std", "zerocopy-derive"))' -C metadata=12fb39da0a26a1ba -C extra-filename=-0c4dee3b58629a4d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern zerocopy_derive=/opt/rustwide/target/debug/deps/libzerocopy_derive-5e15780d5ecae83f.so --cap-lints allow --cap-lints=warn --check-cfg 'cfg(no_zerocopy_simd_x86_avx12_1_89_0)' --check-cfg 'cfg(rust, values("1.89.0"))' --check-cfg 'cfg(no_zerocopy_core_error_1_81_0)' --check-cfg 'cfg(rust, values("1.81.0"))' --check-cfg 'cfg(no_zerocopy_diagnostic_on_unimplemented_1_78_0)' --check-cfg 'cfg(rust, values("1.78.0"))' --check-cfg 'cfg(no_zerocopy_generic_bounds_in_const_fn_1_61_0)' --check-cfg 'cfg(rust, values("1.61.0"))' --check-cfg 'cfg(no_zerocopy_target_has_atomics_1_60_0)' --check-cfg 'cfg(rust, values("1.60.0"))' --check-cfg 'cfg(no_zerocopy_aarch64_simd_1_59_0)' --check-cfg 'cfg(rust, values("1.59.0"))' --check-cfg 'cfg(no_zerocopy_aarch64_simd_be_1_87_0)' --check-cfg 'cfg(rust, values("1.87.0"))' --check-cfg 'cfg(no_zerocopy_panic_in_const_and_vec_try_reserve_1_57_0)' --check-cfg 'cfg(rust, values("1.57.0"))' --check-cfg 'cfg(doc_cfg)' --check-cfg 'cfg(kani)' --check-cfg 'cfg(__ZEROCOPY_INTERNAL_USE_ONLY_NIGHTLY_FEATURES_IN_TESTS)' --check-cfg 'cfg(__ZEROCOPY_INTERNAL_USE_ONLY_DEV_MODE)' --check-cfg 'cfg(coverage_nightly)' --check-cfg 'cfg(zerocopy_inline_always)'` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `futures-util` (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 futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-util-0.3.32/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=unreachable_pub --warn=unexpected_cfgs --warn=single_use_lifetimes --warn=rust_2018_idioms --warn=missing_debug_implementations --check-cfg 'cfg(futures_sanitizer)' --cfg 'feature="alloc"' --cfg 'feature="async-await"' --cfg 'feature="async-await-macro"' --cfg 'feature="channel"' --cfg 'feature="default"' --cfg 'feature="futures-channel"' --cfg 'feature="futures-io"' --cfg 'feature="futures-macro"' --cfg 'feature="futures-sink"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "async-await", "async-await-macro", "bilock", "cfg-target-has-atomic", "channel", "compat", "default", "futures-channel", "futures-io", "futures-macro", "futures-sink", "futures_01", "io", "io-compat", "libc", "memchr", "portable-atomic", "sink", "slab", "spin", "std", "tokio-io", "unstable", "write-all-vectored"))' -C metadata=ab736c9b338a8f25 -C extra-filename=-5948f80603f85192 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-5b21ff7336169a40.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-3f2014b84910caad.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-db39768d7d04483a.rmeta --extern futures_macro=/opt/rustwide/target/debug/deps/libfutures_macro-4c1e14384db19f39.so --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-972a6e6f22232cfe.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-16f44b435b6f0168.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-8b09dcab5f206844.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-dbd15b1f007a2c34.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-229cf4143d039c7e.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "bbcb2460f4a15ff8e5e97f283e8e7269d4bb2bf795aefe1aaf4bfca3296b6f62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbcb2460f4a15ff8e5e97f283e8e7269d4bb2bf795aefe1aaf4bfca3296b6f62", kill_on_drop: false }`
[INFO] [stdout] bbcb2460f4a15ff8e5e97f283e8e7269d4bb2bf795aefe1aaf4bfca3296b6f62
