[INFO] fetching crate safepkt-backend 1.0.0...
[INFO] testing safepkt-backend-1.0.0 against try#5bc97a20e5cc382ae6d19f727a9e73eeb2734548 for pr-99093
[INFO] extracting crate safepkt-backend 1.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate safepkt-backend 1.0.0 on toolchain 5bc97a20e5cc382ae6d19f727a9e73eeb2734548
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate safepkt-backend 1.0.0
[INFO] finished tweaking crates.io crate safepkt-backend 1.0.0
[INFO] tweaked toml for crates.io crate safepkt-backend 1.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate safepkt-backend 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 700a6137db1bfd709844c8588e03cbe07fb34b8b81e91527411e392df5aaca67
[INFO] running `Command { std: "docker" "start" "-a" "700a6137db1bfd709844c8588e03cbe07fb34b8b81e91527411e392df5aaca67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "700a6137db1bfd709844c8588e03cbe07fb34b8b81e91527411e392df5aaca67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "700a6137db1bfd709844c8588e03cbe07fb34b8b81e91527411e392df5aaca67", kill_on_drop: false }`
[INFO] [stdout] 700a6137db1bfd709844c8588e03cbe07fb34b8b81e91527411e392df5aaca67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59db31741f074393a881ec09f662badb140a38231c5634434f6d19267a4dce0c
[INFO] running `Command { std: "docker" "start" "-a" "59db31741f074393a881ec09f662badb140a38231c5634434f6d19267a4dce0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-core v0.3.18
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling futures-io v0.3.18
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling futures-task v0.3.18
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling futures-channel v0.3.18
[INFO] [stderr]    Compiling futures-sink v0.3.18
[INFO] [stderr]    Compiling futures-util v0.3.18
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling fastrand v1.4.1
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling event-listener v2.5.1
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[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
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[INFO] [stderr]    Compiling tower-service v0.3.1
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[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling crc32fast v1.2.2
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling owo-colors v1.3.0
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling anyhow v1.0.48
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.8
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
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[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling http v0.2.5
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling os_str_bytes v4.2.0
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling gory v0.1.14
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling blocking v1.1.0
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling nix v0.23.0
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling tar v0.4.37
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling blake2 v0.9.2
[INFO] [stderr]    Compiling sha2 v0.9.8
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling fungus v0.1.27
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]    Compiling tokio-macros v1.6.0
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling polling v2.2.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling async-std v1.10.0
[INFO] [stderr]    Compiling futures-executor v0.3.18
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling futures v0.3.18
[INFO] [stderr]    Compiling serde_with_macros v1.5.1
[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,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -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=faaa431d91192ee9 -C extra-filename=-faaa431d91192ee9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-5e8424a0f7103369.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-11209d7a104aa1fd.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-e6bbee201eb478c9.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-417528047c5b30a5.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-a64b4f141d40a385.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-393bd80b9b1a6bb7.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-be365574107bac13.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-c01d3460c002bb08.rmeta --extern signal_hook_registry=/opt/rustwide/target/debug/deps/libsignal_hook_registry-50701575b829f695.rmeta --extern tokio_macros=/opt/rustwide/target/debug/deps/libtokio_macros-8ab71129f7407b19.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] running `Command { std: "docker" "inspect" "59db31741f074393a881ec09f662badb140a38231c5634434f6d19267a4dce0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59db31741f074393a881ec09f662badb140a38231c5634434f6d19267a4dce0c", kill_on_drop: false }`
[INFO] [stdout] 59db31741f074393a881ec09f662badb140a38231c5634434f6d19267a4dce0c