[INFO] fetching crate spl-feature-proposal 1.0.0...
[INFO] checking spl-feature-proposal-1.0.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate spl-feature-proposal 1.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate spl-feature-proposal 1.0.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spl-feature-proposal 1.0.0
[INFO] finished tweaking crates.io crate spl-feature-proposal 1.0.0
[INFO] tweaked toml for crates.io crate spl-feature-proposal 1.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v0.3.2
[INFO] [stderr]   Downloaded tokio v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa6554fc539f38fc757076acd4a4ab4645083a9ccc4ad98a9255964b491cd85c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aa6554fc539f38fc757076acd4a4ab4645083a9ccc4ad98a9255964b491cd85c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa6554fc539f38fc757076acd4a4ab4645083a9ccc4ad98a9255964b491cd85c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa6554fc539f38fc757076acd4a4ab4645083a9ccc4ad98a9255964b491cd85c", kill_on_drop: false }`
[INFO] [stdout] aa6554fc539f38fc757076acd4a4ab4645083a9ccc4ad98a9255964b491cd85c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f156c34961d5bbde43bdebe7d80328c1e35f308e6e243ea37a7b770a49f33be5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f156c34961d5bbde43bdebe7d80328c1e35f308e6e243ea37a7b770a49f33be5", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling tarpc-plugins v0.9.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling tokio-macros v0.3.2
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking tokio v1.14.0
[INFO] [stderr]     Checking futures-util v0.3.18
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]    Compiling ouroboros_macro v0.10.1
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]    Compiling borsh-derive v0.7.2
[INFO] [stderr]     Checking zeroize v1.4.3
[INFO] [stderr]     Checking zstd-sys v1.4.18+zstd.1.4.7
[INFO] [stderr]    Compiling zstd-safe v2.0.6+zstd.1.4.7
[INFO] [stderr]    Compiling educe v0.4.18
[INFO] [stderr]     Checking curve25519-dalek v2.1.3
[INFO] [stderr]     Checking goblin v0.3.4
[INFO] [stderr]     Checking zstd v0.5.4+zstd.1.4.7
[INFO] [stderr]     Checking borsh v0.7.2
[INFO] [stderr] error: could not compile `tokio`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name tokio --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-1.14.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="bytes"' --cfg 'feature="default"' --cfg 'feature="fs"' --cfg 'feature="full"' --cfg 'feature="io-std"' --cfg 'feature="io-util"' --cfg 'feature="libc"' --cfg 'feature="macros"' --cfg 'feature="memchr"' --cfg 'feature="mio"' --cfg 'feature="net"' --cfg 'feature="num_cpus"' --cfg 'feature="once_cell"' --cfg 'feature="parking_lot"' --cfg 'feature="process"' --cfg 'feature="rt"' --cfg 'feature="rt-multi-thread"' --cfg 'feature="signal"' --cfg 'feature="signal-hook-registry"' --cfg 'feature="sync"' --cfg 'feature="time"' --cfg 'feature="tokio-macros"' --cfg 'feature="winapi"' -C metadata=f58cefa4ed5dbf6b -C extra-filename=-f58cefa4ed5dbf6b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-0b6620405fcf1713.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-e3ffa5d9644c4995.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-2ad403701f4cd2da.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-da54830491c48a77.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-b7cfa835fa48eb6b.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-cf6f3ab30d01461a.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-72e88c63f56aa9c4.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-9e77c811562aac2d.rmeta --extern signal_hook_registry=/opt/rustwide/target/debug/deps/libsignal_hook_registry-f50778d32b71caef.rmeta --extern tokio_macros=/opt/rustwide/target/debug/deps/libtokio_macros-615b5104c3ae9262.so --cap-lints allow --cap-lints=forbid --cfg tokio_track_caller` (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" "f156c34961d5bbde43bdebe7d80328c1e35f308e6e243ea37a7b770a49f33be5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f156c34961d5bbde43bdebe7d80328c1e35f308e6e243ea37a7b770a49f33be5", kill_on_drop: false }`
[INFO] [stdout] f156c34961d5bbde43bdebe7d80328c1e35f308e6e243ea37a7b770a49f33be5