[INFO] fetching crate tower-batch-control 1.0.1...
[INFO] testing tower-batch-control-1.0.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tower-batch-control 1.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tower-batch-control 1.0.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tower-batch-control 1.0.1
[INFO] tweaked toml for crates.io crate tower-batch-control 1.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tower-batch-control 1.0.1 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 tower-batch-control 1.0.1 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3b2a448451bf6b21ef61706d029a5cd323af3e276e3b723fe41a06049d68f9b7
[INFO] running `Command { std: "docker" "start" "-a" "3b2a448451bf6b21ef61706d029a5cd323af3e276e3b723fe41a06049d68f9b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b2a448451bf6b21ef61706d029a5cd323af3e276e3b723fe41a06049d68f9b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b2a448451bf6b21ef61706d029a5cd323af3e276e3b723fe41a06049d68f9b7", kill_on_drop: false }`
[INFO] [stdout] 3b2a448451bf6b21ef61706d029a5cd323af3e276e3b723fe41a06049d68f9b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e3077394602f1cf4d81536bbe8922569c699c47a9012060c0867cf53a5cb4d16
[INFO] running `Command { std: "docker" "start" "-a" "e3077394602f1cf4d81536bbe8922569c699c47a9012060c0867cf53a5cb4d16", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling tokio-util v0.7.16
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling tower-batch-control v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.29s
[INFO] running `Command { std: "docker" "inspect" "e3077394602f1cf4d81536bbe8922569c699c47a9012060c0867cf53a5cb4d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3077394602f1cf4d81536bbe8922569c699c47a9012060c0867cf53a5cb4d16", kill_on_drop: false }`
[INFO] [stdout] e3077394602f1cf4d81536bbe8922569c699c47a9012060c0867cf53a5cb4d16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6703f62d825f867f7d2dbac42ceae7a3ce80f7bc5b4dfcf09170ee8776476d97
[INFO] running `Command { std: "docker" "start" "-a" "6703f62d825f867f7d2dbac42ceae7a3ce80f7bc5b4dfcf09170ee8776476d97", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling owo-colors v4.2.3
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling nu-ansi-term v0.50.1
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling signature v2.2.0
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr] error: could not compile `syn` (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 syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.106/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=413e1b6e69b914a9 -C extra-filename=-ae744419b696caef --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ec2e4e906c3fa39e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-afc954aaaa125544.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-994e2229f72e62d3.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 `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-0.8.6/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="default"' --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=4c7822646ba8cb0f -C extra-filename=-3cca980d12fc0e05 --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] running `Command { std: "docker" "inspect" "6703f62d825f867f7d2dbac42ceae7a3ce80f7bc5b4dfcf09170ee8776476d97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6703f62d825f867f7d2dbac42ceae7a3ce80f7bc5b4dfcf09170ee8776476d97", kill_on_drop: false }`
[INFO] [stdout] 6703f62d825f867f7d2dbac42ceae7a3ce80f7bc5b4dfcf09170ee8776476d97
