[INFO] fetching crate task-graph-mcp 0.5.0...
[INFO] testing task-graph-mcp-0.5.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate task-graph-mcp 0.5.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate task-graph-mcp 0.5.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate task-graph-mcp 0.5.0
[INFO] tweaked toml for crates.io crate task-graph-mcp 0.5.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate task-graph-mcp 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 task-graph-mcp 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4efee850dfd9757c91282f3cb15419f8db4da6526484b83eaccda9e2734d5a1d
[INFO] running `Command { std: "docker" "start" "-a" "4efee850dfd9757c91282f3cb15419f8db4da6526484b83eaccda9e2734d5a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4efee850dfd9757c91282f3cb15419f8db4da6526484b83eaccda9e2734d5a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4efee850dfd9757c91282f3cb15419f8db4da6526484b83eaccda9e2734d5a1d", kill_on_drop: false }`
[INFO] [stdout] 4efee850dfd9757c91282f3cb15419f8db4da6526484b83eaccda9e2734d5a1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a0a8c22ceccad6d7d413d34f09d1d6f3dd26be67eaa7b870c53b030c15710e11
[INFO] running `Command { std: "docker" "start" "-a" "a0a8c22ceccad6d7d413d34f09d1d6f3dd26be67eaa7b870c53b030c15710e11", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling http v1.4.0
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling libsqlite3-sys v0.35.0
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling icu_normalizer v2.1.1
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling deranged v0.5.5
[INFO] [stderr]    Compiling siphasher v1.0.2
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling winnow v0.7.14
[INFO] [stderr]    Compiling hashlink v0.10.0
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling tokio v1.49.0
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling ref-cast-impl v1.0.25
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling time v0.3.46
[INFO] [stderr]    Compiling url v2.5.8
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling ryu v1.0.22
[INFO] [stderr]    Compiling clap_builder v4.5.55
[INFO] [stderr]    Compiling clap_derive v4.5.55
[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-0.4.13/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="alloc"' --cfg 'feature="dfa-onepass"' --cfg 'feature="hybrid"' --cfg 'feature="meta"' --cfg 'feature="nfa-backtrack"' --cfg 'feature="nfa-pikevm"' --cfg 'feature="nfa-thompson"' --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=a4e8ca7dd97c7aee -C extra-filename=-d66d7efa4e4bd9c8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-bc05c32f61803de4.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-e157b78cb74da013.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-5210c8a89f502eee.rmeta --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" "a0a8c22ceccad6d7d413d34f09d1d6f3dd26be67eaa7b870c53b030c15710e11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0a8c22ceccad6d7d413d34f09d1d6f3dd26be67eaa7b870c53b030c15710e11", kill_on_drop: false }`
[INFO] [stdout] a0a8c22ceccad6d7d413d34f09d1d6f3dd26be67eaa7b870c53b030c15710e11
