[INFO] fetching crate brainos-cerebellum 0.2.0...
[INFO] testing brainos-cerebellum-0.2.0 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate brainos-cerebellum 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate brainos-cerebellum 0.2.0
[INFO] finished tweaking crates.io crate brainos-cerebellum 0.2.0
[INFO] tweaked toml for crates.io crate brainos-cerebellum 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate brainos-cerebellum 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] crate crates.io crate brainos-cerebellum 0.2.0 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] 700b0ec215fd202a2871691b47895f73b25c8079484255a50b2bb99decc9792c
[INFO] running `Command { std: "docker" "start" "-a" "700b0ec215fd202a2871691b47895f73b25c8079484255a50b2bb99decc9792c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "700b0ec215fd202a2871691b47895f73b25c8079484255a50b2bb99decc9792c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "700b0ec215fd202a2871691b47895f73b25c8079484255a50b2bb99decc9792c", kill_on_drop: false }`
[INFO] [stdout] 700b0ec215fd202a2871691b47895f73b25c8079484255a50b2bb99decc9792c
[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] 88b9a0a6e9652cc4e6aa5bd0d75baff25a920a27b2413b51b82c1eaff7c24c00
[INFO] running `Command { std: "docker" "start" "-a" "88b9a0a6e9652cc4e6aa5bd0d75baff25a920a27b2413b51b82c1eaff7c24c00", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.23
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling regex-syntax v0.8.9
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling indexmap v2.12.1
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling cc v1.2.56
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling jiff v0.2.21
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling cpu-time v1.0.0
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling uncased v0.9.10
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling http v1.4.0
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling combine v4.6.7
[INFO] [stderr]    Compiling syn v2.0.115
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling redb v2.6.3
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling libsqlite3-sys v0.30.1
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling figment v0.10.19
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling inlinable_string v0.1.15
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling hashlink v0.9.1
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling uuid v1.20.0
[INFO] [stderr]    Compiling memmap2 v0.9.10
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling tower-http v0.5.2
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling env_filter v1.0.0
[INFO] [stderr]    Compiling env_logger v0.11.9
[INFO] [stderr] error: could not compile `nix` (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 nix --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.26.4/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="acct"' --cfg 'feature="aio"' --cfg 'feature="default"' --cfg 'feature="dir"' --cfg 'feature="env"' --cfg 'feature="event"' --cfg 'feature="feature"' --cfg 'feature="fs"' --cfg 'feature="hostname"' --cfg 'feature="inotify"' --cfg 'feature="ioctl"' --cfg 'feature="kmod"' --cfg 'feature="memoffset"' --cfg 'feature="mman"' --cfg 'feature="mount"' --cfg 'feature="mqueue"' --cfg 'feature="net"' --cfg 'feature="personality"' --cfg 'feature="pin-utils"' --cfg 'feature="poll"' --cfg 'feature="process"' --cfg 'feature="pthread"' --cfg 'feature="ptrace"' --cfg 'feature="quota"' --cfg 'feature="reboot"' --cfg 'feature="resource"' --cfg 'feature="sched"' --cfg 'feature="signal"' --cfg 'feature="socket"' --cfg 'feature="term"' --cfg 'feature="time"' --cfg 'feature="ucontext"' --cfg 'feature="uio"' --cfg 'feature="user"' --cfg 'feature="zerocopy"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("acct", "aio", "default", "dir", "env", "event", "feature", "fs", "hostname", "inotify", "ioctl", "kmod", "memoffset", "mman", "mount", "mqueue", "net", "personality", "pin-utils", "poll", "process", "pthread", "ptrace", "quota", "reboot", "resource", "sched", "signal", "socket", "term", "time", "ucontext", "uio", "user", "zerocopy"))' -C metadata=1dc7734830b00ea8 -C extra-filename=-14f8c93edd38bec5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-a9851ebd0ab18f47.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-73907a425b6e514e.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-15cef503749dbe25.rmeta --extern memoffset=/opt/rustwide/target/debug/deps/libmemoffset-10780788a792c1d2.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-e0a199353c6bf870.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 `jiff` (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 jiff --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/jiff-0.2.21/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_jiff)' --cfg 'feature="alloc"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "js", "logging", "perf-inline", "serde", "static", "static-tz", "std", "tz-fat", "tz-system", "tzdb-bundle-always", "tzdb-bundle-platform", "tzdb-concatenated", "tzdb-zoneinfo"))' -C metadata=b00d136751849b48 -C extra-filename=-5f7d001edb8d662e --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" "88b9a0a6e9652cc4e6aa5bd0d75baff25a920a27b2413b51b82c1eaff7c24c00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b9a0a6e9652cc4e6aa5bd0d75baff25a920a27b2413b51b82c1eaff7c24c00", kill_on_drop: false }`
[INFO] [stdout] 88b9a0a6e9652cc4e6aa5bd0d75baff25a920a27b2413b51b82c1eaff7c24c00