[INFO] cloning repository https://github.com/buggoing/chat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/buggoing/chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuggoing%2Fchat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuggoing%2Fchat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f709a9c89375fdc46147b23ddc4490377080ae2b
[INFO] testing buggoing/chat against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuggoing%2Fchat" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/buggoing/chat on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/buggoing/chat
[INFO] finished tweaking git repo https://github.com/buggoing/chat
[INFO] tweaked toml for git repo https://github.com/buggoing/chat written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/buggoing/chat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99028a115aa71b1a4a04cb7d2f031dde0afd433c05bf83fda185e04b9e517fc1
[INFO] running `Command { std: "docker" "start" "-a" "99028a115aa71b1a4a04cb7d2f031dde0afd433c05bf83fda185e04b9e517fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99028a115aa71b1a4a04cb7d2f031dde0afd433c05bf83fda185e04b9e517fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99028a115aa71b1a4a04cb7d2f031dde0afd433c05bf83fda185e04b9e517fc1", kill_on_drop: false }`
[INFO] [stdout] 99028a115aa71b1a4a04cb7d2f031dde0afd433c05bf83fda185e04b9e517fc1
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aeec1553c2d55f5a673ca6c1755fc0ddfe3f65b8e493915573ba3ff06d12de0a
[INFO] running `Command { std: "docker" "start" "-a" "aeec1553c2d55f5a673ca6c1755fc0ddfe3f65b8e493915573ba3ff06d12de0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling futures-io v0.3.7
[INFO] [stderr]    Compiling futures-sink v0.3.7
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling tower-layer v0.3.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling multimap v0.8.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling futures-task v0.3.7
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling socket2 v0.3.15
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling futures-channel v0.3.7
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling futures-lite v1.11.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling resolv-conf v0.6.3
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling os_info v2.0.8
[INFO] [stderr]    Compiling futures-intrusive v0.3.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling pbkdf2 v0.3.0
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling md-5 v0.8.0
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling stringprep v0.1.2
[INFO] [stderr]    Compiling async-executor v1.3.0
[INFO] [stderr]    Compiling async-io v1.1.10
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling async-global-executor v1.4.3
[INFO] [stderr]    Compiling async-std v1.6.5
[INFO] [stderr]    Compiling backtrace v0.3.53
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]    Compiling webpki v0.21.3
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling rustls v0.18.1
[INFO] [stderr]    Compiling rustls v0.17.0
[INFO] [stderr]    Compiling webpki-roots v0.19.0
[INFO] [stderr]    Compiling webpki-roots v0.18.0
[INFO] [stderr] error: could not compile `async-std`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name async_std --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-std-1.6.5/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="async-global-executor"' --cfg 'feature="async-io"' --cfg 'feature="async-mutex"' --cfg 'feature="blocking"' --cfg 'feature="crossbeam-utils"' --cfg 'feature="default"' --cfg 'feature="futures-channel"' --cfg 'feature="futures-core"' --cfg 'feature="futures-io"' --cfg 'feature="futures-lite"' --cfg 'feature="gloo-timers"' --cfg 'feature="kv-log-macro"' --cfg 'feature="log"' --cfg 'feature="memchr"' --cfg 'feature="num_cpus"' --cfg 'feature="once_cell"' --cfg 'feature="pin-project-lite"' --cfg 'feature="pin-utils"' --cfg 'feature="slab"' --cfg 'feature="std"' --cfg 'feature="wasm-bindgen-futures"' -C metadata=3bbd059109cda3ad -C extra-filename=-3bbd059109cda3ad --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern async_global_executor=/opt/rustwide/target/debug/deps/libasync_global_executor-076d3f7dcc4719f0.rmeta --extern async_io=/opt/rustwide/target/debug/deps/libasync_io-18cca517fe0ccb4c.rmeta --extern async_mutex=/opt/rustwide/target/debug/deps/libasync_mutex-9261fc820090dc1e.rmeta --extern blocking=/opt/rustwide/target/debug/deps/libblocking-b6e79b00552fcf78.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-e176cdcd5c7de599.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-b575fb3a6ef0ab27.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-c3a933be837f4a0b.rmeta --extern futures_lite=/opt/rustwide/target/debug/deps/libfutures_lite-ca214139d6a21f69.rmeta --extern kv_log_macro=/opt/rustwide/target/debug/deps/libkv_log_macro-b29d855dcf222a4c.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-e6aa115c95f41177.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-e16668cc5a7251cd.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-0b7f6735b449e500.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-06d10ca39739a75e.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-27dc1ed7c44961d3.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-179c4ec3b1bb6929.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-31c88580e3b60f0d.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" "aeec1553c2d55f5a673ca6c1755fc0ddfe3f65b8e493915573ba3ff06d12de0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeec1553c2d55f5a673ca6c1755fc0ddfe3f65b8e493915573ba3ff06d12de0a", kill_on_drop: false }`
[INFO] [stdout] aeec1553c2d55f5a673ca6c1755fc0ddfe3f65b8e493915573ba3ff06d12de0a