[INFO] fetching crate nature_db 0.15.0...
[INFO] testing nature_db-0.15.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate nature_db 0.15.0 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate nature_db 0.15.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nature_db 0.15.0
[INFO] finished tweaking crates.io crate nature_db 0.15.0
[INFO] tweaked toml for crates.io crate nature_db 0.15.0 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15ee4e321c1ed3b41d082f2ef65e9a20f0c65f32152649769d978a39eab201a4
[INFO] running `Command { std: "docker" "start" "-a" "15ee4e321c1ed3b41d082f2ef65e9a20f0c65f32152649769d978a39eab201a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15ee4e321c1ed3b41d082f2ef65e9a20f0c65f32152649769d978a39eab201a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15ee4e321c1ed3b41d082f2ef65e9a20f0c65f32152649769d978a39eab201a4", kill_on_drop: false }`
[INFO] [stdout] 15ee4e321c1ed3b41d082f2ef65e9a20f0c65f32152649769d978a39eab201a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 818ca4cd24218e97d16e3156ef08c4784bf6d38af2cb02bf808c059e7fdcd102
[INFO] running `Command { std: "docker" "start" "-a" "818ca4cd24218e97d16e3156ef08c4784bf6d38af2cb02bf808c059e7fdcd102", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling pin-project-internal v0.4.29
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling sha1_smol v1.0.0
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling const_fn v0.4.9
[INFO] [stderr]    Compiling rust_decimal v1.22.0
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling tracing v0.1.31
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling fern v0.6.0
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling actix-macros v0.1.3
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling actix_derive v0.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling sha1 v0.6.1
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling enum-as-inner v0.3.4
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling lexical v5.2.2
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling resolv-conf v0.6.3
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr] error: could not compile `futures-util`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.21/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 --cfg 'feature="alloc"' --cfg 'feature="async-await"' --cfg 'feature="async-await-macro"' --cfg 'feature="channel"' --cfg 'feature="default"' --cfg 'feature="futures-channel"' --cfg 'feature="futures-io"' --cfg 'feature="futures-macro"' --cfg 'feature="futures-sink"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' -C metadata=2ca358207aa0a110 -C extra-filename=-2ca358207aa0a110 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-6f2858b163c500e2.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-7d8219d4ed57fa6e.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-80156a1303cb1cfa.rmeta --extern futures_macro=/opt/rustwide/target/debug/deps/libfutures_macro-8a3fb3cc23e678c9.so --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-e10ea0e7e7fbe990.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-7d3a049d02ce8b73.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-bc7103d2fd7c9396.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-420daa249e18d18f.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-0029fcf5b57be1ee.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-9af0dd81ec65e962.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: build failed
[INFO] running `Command { std: "docker" "inspect" "818ca4cd24218e97d16e3156ef08c4784bf6d38af2cb02bf808c059e7fdcd102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "818ca4cd24218e97d16e3156ef08c4784bf6d38af2cb02bf808c059e7fdcd102", kill_on_drop: false }`
[INFO] [stdout] 818ca4cd24218e97d16e3156ef08c4784bf6d38af2cb02bf808c059e7fdcd102