[INFO] fetching crate silent-db 0.2.0...
[INFO] testing silent-db-0.2.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate silent-db 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate silent-db 0.2.0
[INFO] finished tweaking crates.io crate silent-db 0.2.0
[INFO] tweaked toml for crates.io crate silent-db 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate silent-db 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 245 packages to latest compatible versions
[INFO] [stderr]       Adding console v0.15.11 (available: v0.16.3)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding sqlparser v0.44.0 (available: v0.61.0)
[INFO] [stderr]       Adding sqlx v0.7.4 (available: v0.8.6)
[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] 0064455628d7d61b40f4fdbdce8fe539b46b418b0ce405d810513297d1f1d547
[INFO] running `Command { std: "docker" "start" "-a" "0064455628d7d61b40f4fdbdce8fe539b46b418b0ce405d810513297d1f1d547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0064455628d7d61b40f4fdbdce8fe539b46b418b0ce405d810513297d1f1d547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0064455628d7d61b40f4fdbdce8fe539b46b418b0ce405d810513297d1f1d547", kill_on_drop: false }`
[INFO] [stdout] 0064455628d7d61b40f4fdbdce8fe539b46b418b0ce405d810513297d1f1d547
[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] f05efe191b669b762cca2350171df8bbe7cc04ffd526dffda2780c40645fbc53
[INFO] running `Command { std: "docker" "start" "-a" "f05efe191b669b762cca2350171df8bbe7cc04ffd526dffda2780c40645fbc53", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling typenum v1.20.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling litemap v0.8.2
[INFO] [stderr]    Compiling writeable v0.6.3
[INFO] [stderr]    Compiling icu_properties_data v2.2.0
[INFO] [stderr]    Compiling icu_normalizer_data v2.2.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling itoa v1.0.18
[INFO] [stderr]    Compiling crc-catalog v2.5.0
[INFO] [stderr]    Compiling hashbrown v0.17.0
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling crc v3.4.0
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling fastrand v2.4.1
[INFO] [stderr]    Compiling unicode-segmentation v1.13.2
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling dotenvy v0.15.7
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling indexmap v2.14.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling mio v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling futures-intrusive v0.5.0
[INFO] [stderr]    Compiling sqlformat v0.2.6
[INFO] [stderr]    Compiling tokio v1.52.1
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling regex-automata v0.4.14
[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 -C debuginfo=2 --allow=unexpected_cfgs --check-cfg 'cfg(docsrs_regex)' --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=7bb3ee42bbb41fa9 -C extra-filename=-2cfdfc3e5cb17812 --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 `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-2.0.117/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="fold"' --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=a36e6886191edf63 -C extra-filename=-a190fa7b281d5b1d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-af63080cb3c4e46a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-078ecd1c21e8399c.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-499e208ff65c691c.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "f05efe191b669b762cca2350171df8bbe7cc04ffd526dffda2780c40645fbc53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f05efe191b669b762cca2350171df8bbe7cc04ffd526dffda2780c40645fbc53", kill_on_drop: false }`
[INFO] [stdout] f05efe191b669b762cca2350171df8bbe7cc04ffd526dffda2780c40645fbc53
