[INFO] fetching crate object-rainbow-hamt 0.0.0-a.7...
[INFO] testing object-rainbow-hamt-0.0.0-a.7 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate object-rainbow-hamt 0.0.0-a.7 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate object-rainbow-hamt 0.0.0-a.7
[INFO] finished tweaking crates.io crate object-rainbow-hamt 0.0.0-a.7
[INFO] tweaked toml for crates.io crate object-rainbow-hamt 0.0.0-a.7 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate object-rainbow-hamt 0.0.0-a.7 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 object-rainbow-hamt 0.0.0-a.7 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 72604ff222b85477fe21ea9e907529c5e752d859ae3f0850fd9145af4895c257
[INFO] running `Command { std: "docker" "start" "-a" "72604ff222b85477fe21ea9e907529c5e752d859ae3f0850fd9145af4895c257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72604ff222b85477fe21ea9e907529c5e752d859ae3f0850fd9145af4895c257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72604ff222b85477fe21ea9e907529c5e752d859ae3f0850fd9145af4895c257", kill_on_drop: false }`
[INFO] [stdout] 72604ff222b85477fe21ea9e907529c5e752d859ae3f0850fd9145af4895c257
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] dc84ce4b1f4f1ed63b00962701dc644258d46df99f152a2ac2698296ceddac91
[INFO] running `Command { std: "docker" "start" "-a" "dc84ce4b1f4f1ed63b00962701dc644258d46df99f152a2ac2698296ceddac91", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling sha2-const v0.1.3
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling generic-array v1.3.5
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling darling_macro v0.23.0
[INFO] [stderr]    Compiling darling v0.23.0
[INFO] [stderr]    Compiling object-rainbow-derive v0.0.0-a.19
[INFO] [stderr]    Compiling object-rainbow v0.0.0-a.60
[INFO] [stderr]    Compiling object-rainbow-array-map v0.0.0-a.10
[INFO] [stderr]    Compiling object-rainbow-point v0.0.0-a.11
[INFO] [stderr]    Compiling object-rainbow-hamt v0.0.0-a.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.69s
[INFO] running `Command { std: "docker" "inspect" "dc84ce4b1f4f1ed63b00962701dc644258d46df99f152a2ac2698296ceddac91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc84ce4b1f4f1ed63b00962701dc644258d46df99f152a2ac2698296ceddac91", kill_on_drop: false }`
[INFO] [stdout] dc84ce4b1f4f1ed63b00962701dc644258d46df99f152a2ac2698296ceddac91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fd2b1d7e84c37317383ab8e944b029e46fc3c50446c31d8be016283744d39a84
[INFO] running `Command { std: "docker" "start" "-a" "fd2b1d7e84c37317383ab8e944b029e46fc3c50446c31d8be016283744d39a84", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling parking v2.2.1
[INFO] [stderr]    Compiling fastrand v2.4.1
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]    Compiling async-task v4.7.1
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling macro_rules_attribute-proc_macro v0.2.2
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling piper v0.2.5
[INFO] [stderr]    Compiling macro_rules_attribute v0.2.2
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling async-executor v1.14.0
[INFO] [stderr]    Compiling async-channel v2.5.0
[INFO] [stderr]    Compiling async-lock v3.4.2
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling blocking v1.6.2
[INFO] [stderr]    Compiling async-fs v2.2.0
[INFO] [stderr]    Compiling object-rainbow v0.0.0-a.60
[INFO] [stderr]    Compiling object-rainbow-point v0.0.0-a.11
[INFO] [stderr]    Compiling object-rainbow-array-map v0.0.0-a.10
[INFO] [stderr]    Compiling object-rainbow-hamt v0.0.0-a.7 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling polling v3.11.0
[INFO] [stderr]    Compiling async-signal v0.2.14
[INFO] [stderr]    Compiling async-net v2.0.0
[INFO] [stderr]    Compiling smol-macros v0.1.1
[INFO] [stderr]    Compiling async-process v2.5.0
[INFO] [stderr]    Compiling smol v2.0.2
[INFO] [stderr] error: could not compile `object-rainbow-hamt` (lib test)
[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 object_rainbow_hamt --edition=2024 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=477bdd453df9fa01 -C extra-filename=-eb413d3f72bfdca8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-01ff571dadd65e2c.rlib --extern macro_rules_attribute=/opt/rustwide/target/debug/deps/libmacro_rules_attribute-bd263a71f8be626e.rlib --extern object_rainbow=/opt/rustwide/target/debug/deps/libobject_rainbow-9b0b32f1cb3f1cb9.rlib --extern object_rainbow_array_map=/opt/rustwide/target/debug/deps/libobject_rainbow_array_map-e7529352de8a6e85.rlib --extern object_rainbow_point=/opt/rustwide/target/debug/deps/libobject_rainbow_point-3ad30b8a3435e055.rlib --extern smol=/opt/rustwide/target/debug/deps/libsmol-68fa87f877a7ad67.rlib --extern smol_macros=/opt/rustwide/target/debug/deps/libsmol_macros-0cd5ac4773d9fe93.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "fd2b1d7e84c37317383ab8e944b029e46fc3c50446c31d8be016283744d39a84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd2b1d7e84c37317383ab8e944b029e46fc3c50446c31d8be016283744d39a84", kill_on_drop: false }`
[INFO] [stdout] fd2b1d7e84c37317383ab8e944b029e46fc3c50446c31d8be016283744d39a84