[INFO] fetching crate f-tree 0.2.5...
[INFO] testing f-tree-0.2.5 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate f-tree 0.2.5 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate f-tree 0.2.5
[INFO] finished tweaking crates.io crate f-tree 0.2.5
[INFO] tweaked toml for crates.io crate f-tree 0.2.5 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate f-tree 0.2.5 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate f-tree 0.2.5 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-2026-01-20" "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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27b2ef475e63d9030f9c4b47a208a2816ee9bb92571d4b70a3a5d63087d182e6
[INFO] running `Command { std: "docker" "start" "-a" "27b2ef475e63d9030f9c4b47a208a2816ee9bb92571d4b70a3a5d63087d182e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27b2ef475e63d9030f9c4b47a208a2816ee9bb92571d4b70a3a5d63087d182e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b2ef475e63d9030f9c4b47a208a2816ee9bb92571d4b70a3a5d63087d182e6", kill_on_drop: false }`
[INFO] [stdout] 27b2ef475e63d9030f9c4b47a208a2816ee9bb92571d4b70a3a5d63087d182e6
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34d03222291996fb28b9f53040a71cfe1f2e15cd3772ac694a332eb6a8b570eb
[INFO] running `Command { std: "docker" "start" "-a" "34d03222291996fb28b9f53040a71cfe1f2e15cd3772ac694a332eb6a8b570eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling memchr v2.6.3
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling thiserror v1.0.48
[INFO] [stderr]    Compiling openssl v0.10.57
[INFO] [stderr]    Compiling rustix v0.38.13
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling linux-raw-sys v0.4.7
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling async-trait v0.1.73
[INFO] [stderr]    Compiling dot-structures v0.1.1
[INFO] [stderr]    Compiling socket2 v0.5.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling aho-corasick v1.1.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling tower-layer v0.3.2
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.1
[INFO] [stderr]    Compiling into-attr v0.1.1
[INFO] [stderr]    Compiling dot-generator v0.2.0
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling anstyle v1.0.3
[INFO] [stderr]    Compiling fastrand v2.0.0
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling anstream v0.5.0
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling encoding_rs v0.8.33
[INFO] [stderr]    Compiling base64 v0.21.4
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr]    Compiling clap_lex v0.5.1
[INFO] [stderr]    Compiling openssl-sys v0.9.93
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.9
[INFO] [stderr]    Compiling sync_wrapper v0.1.2
[INFO] [stderr]    Compiling ipnet v2.8.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling matchit v0.7.2
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling regex-automata v0.3.8
[INFO] [stderr]    Compiling clap_builder v4.4.4
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling quick-xml v0.30.0
[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-2026-01-20-x86_64-unknown-linux-gnu/bin/rustc --crate-name regex_syntax --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-syntax-0.6.29/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="default"' --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("default", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment"))' -C metadata=954565be6e4d5345 -C extra-filename=-b40e5c12f1bd86f0 --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] running `Command { std: "docker" "inspect" "34d03222291996fb28b9f53040a71cfe1f2e15cd3772ac694a332eb6a8b570eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34d03222291996fb28b9f53040a71cfe1f2e15cd3772ac694a332eb6a8b570eb", kill_on_drop: false }`
[INFO] [stdout] 34d03222291996fb28b9f53040a71cfe1f2e15cd3772ac694a332eb6a8b570eb
