[INFO] fetching crate imperator-tiger 1.12.0...
[INFO] testing imperator-tiger-1.12.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate imperator-tiger 1.12.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate imperator-tiger 1.12.0
[INFO] finished tweaking crates.io crate imperator-tiger 1.12.0
[INFO] tweaked toml for crates.io crate imperator-tiger 1.12.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate imperator-tiger 1.12.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate imperator-tiger 1.12.0 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-2025-09-21" "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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ae5482591fdbc9f4a6c0f3d1b575dcf16268805f076e4137933c58be4868d83
[INFO] running `Command { std: "docker" "start" "-a" "8ae5482591fdbc9f4a6c0f3d1b575dcf16268805f076e4137933c58be4868d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ae5482591fdbc9f4a6c0f3d1b575dcf16268805f076e4137933c58be4868d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ae5482591fdbc9f4a6c0f3d1b575dcf16268805f076e4137933c58be4868d83", kill_on_drop: false }`
[INFO] [stdout] 8ae5482591fdbc9f4a6c0f3d1b575dcf16268805f076e4137933c58be4868d83
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b7f324cf2da1718e135704af20f0b5f469a0ad0a23d2d086b7ad0de2870c454
[INFO] running `Command { std: "docker" "start" "-a" "2b7f324cf2da1718e135704af20f0b5f469a0ad0a23d2d086b7ad0de2870c454", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.97
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling bitflags v2.9.2
[INFO] [stderr]    Compiling cc v1.2.33
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling thiserror v2.0.14
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling litemap v0.8.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling rustls v0.23.31
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling phf_shared v0.12.1
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling keccak v0.1.5
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling term v1.1.0
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling phf_generator v0.12.1
[INFO] [stderr]    Compiling string_cache v0.8.9
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling indexmap v2.10.0
[INFO] [stderr]    Compiling ena v0.14.3
[INFO] [stderr]    Compiling portable-atomic v1.11.1
[INFO] [stderr]    Compiling ascii-canvas v4.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling flate2 v1.1.2
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling pico-args v0.5.0
[INFO] [stderr]    Compiling fdeflate v0.3.7
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling filetime v0.2.25
[INFO] [stderr]    Compiling bytemuck v1.23.2
[INFO] [stderr]    Compiling png v0.17.16
[INFO] [stderr]    Compiling petgraph v0.7.1
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling self_update v0.42.0
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling clap_builder v4.5.44
[INFO] [stderr]    Compiling sha3 v0.10.8
[INFO] [stderr]    Compiling crc v3.3.0
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling indicatif v0.17.11
[INFO] [stderr]    Compiling xattr v1.5.1
[INFO] [stderr]    Compiling tempfile v3.20.0
[INFO] [stderr]    Compiling self-replace v1.5.0
[INFO] [stderr]    Compiling tar v0.4.44
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr] error: could not compile `futures-util` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2025-09-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-util-0.3.31/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 --warn=unreachable_pub --warn=unexpected_cfgs --warn=single_use_lifetimes --warn=rust_2018_idioms --warn=missing_debug_implementations --check-cfg 'cfg(futures_sanitizer)' --cfg 'feature="alloc"' --cfg 'feature="futures-io"' --cfg 'feature="futures-sink"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "async-await", "async-await-macro", "bilock", "cfg-target-has-atomic", "channel", "compat", "default", "futures-channel", "futures-io", "futures-macro", "futures-sink", "futures_01", "io", "io-compat", "memchr", "portable-atomic", "sink", "slab", "std", "tokio-io", "unstable", "write-all-vectored"))' -C metadata=758fb00b0b9e6d34 -C extra-filename=-7429a353a8cf0191 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-3b920243fce8fec0.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-59d0071c9258d69f.rmeta --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-ae1eb2d060de53a2.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-e09ab7898221cb97.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-eb753e192a6bbd2d.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-72bf04572caa1c84.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-3860774ad9b215b5.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-5629529544b2a983.rmeta --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" "2b7f324cf2da1718e135704af20f0b5f469a0ad0a23d2d086b7ad0de2870c454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b7f324cf2da1718e135704af20f0b5f469a0ad0a23d2d086b7ad0de2870c454", kill_on_drop: false }`
[INFO] [stdout] 2b7f324cf2da1718e135704af20f0b5f469a0ad0a23d2d086b7ad0de2870c454