[INFO] fetching crate snail 0.4.0...
[INFO] testing snail-0.4.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate snail 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate snail 0.4.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate snail 0.4.0
[INFO] finished tweaking crates.io crate snail 0.4.0
[INFO] tweaked toml for crates.io crate snail 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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 data-encoding-macro-internal v0.1.10
[INFO] [stderr]   Downloaded webpki-roots v0.15.0
[INFO] [stderr]   Downloaded cssparser-macros v0.3.6
[INFO] [stderr]   Downloaded procedural-masquerade v0.1.7
[INFO] [stderr]   Downloaded kuchiki v0.7.3
[INFO] [stderr]   Downloaded tokio-rustls v0.7.2
[INFO] [stderr]   Downloaded selectors v0.21.0
[INFO] [stderr]   Downloaded hyper-rustls v0.14.0
[INFO] [stderr]   Downloaded rustyline v1.0.0
[INFO] [stderr]   Downloaded encode_unicode v0.1.3
[INFO] [stderr]   Downloaded markup5ever v0.8.1
[INFO] [stderr]   Downloaded sct v0.4.0
[INFO] [stderr]   Downloaded data-encoding-macro v0.1.12
[INFO] [stderr]   Downloaded caps v0.2.0
[INFO] [stderr]   Downloaded ct-logs v0.4.0
[INFO] [stderr]   Downloaded pseudo v0.1.0
[INFO] [stderr]   Downloaded users v0.7.0
[INFO] [stderr]   Downloaded webpki v0.18.1
[INFO] [stderr]   Downloaded nix v0.11.1
[INFO] [stderr]   Downloaded rusqlite v0.15.0
[INFO] [stderr]   Downloaded html5ever v0.23.0
[INFO] [stderr]   Downloaded cssparser v0.25.9
[INFO] [stderr]   Downloaded libsqlite3-sys v0.10.0
[INFO] [stderr]   Downloaded boxxy v0.7.0
[INFO] [stderr]   Downloaded hlua-badtouch v0.4.2
[INFO] [stderr]   Downloaded syscallz v0.7.0
[INFO] [stderr]   Downloaded rustls v0.13.1
[INFO] [stderr]   Downloaded pledge v0.3.1
[INFO] [stderr]   Downloaded dhcp4r v0.1.0
[INFO] [stderr]   Downloaded rustls v0.14.0
[INFO] [stderr]   Downloaded tokio-rustls v0.8.1
[INFO] [stderr]   Downloaded trust-dns v0.15.1
[INFO] [stderr]   Downloaded mrsc v0.3.1
[INFO] [stderr]   Downloaded trust-dns-server v0.15.0
[INFO] [stderr]   Downloaded lua52-sys v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 604b838fe40204d8e71c5ba36815379a43c3d8a1d730ecccfd1a8e1340287baf
[INFO] running `Command { std: "docker" "start" "-a" "604b838fe40204d8e71c5ba36815379a43c3d8a1d730ecccfd1a8e1340287baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "604b838fe40204d8e71c5ba36815379a43c3d8a1d730ecccfd1a8e1340287baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "604b838fe40204d8e71c5ba36815379a43c3d8a1d730ecccfd1a8e1340287baf", kill_on_drop: false }`
[INFO] [stdout] 604b838fe40204d8e71c5ba36815379a43c3d8a1d730ecccfd1a8e1340287baf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 108a5c0306996023bbf60ab6d04750c42cce9584255a85f1e5f4620b423c5f72
[INFO] running `Command { std: "docker" "start" "-a" "108a5c0306996023bbf60ab6d04750c42cce9584255a85f1e5f4620b423c5f72", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling procedural-masquerade v0.1.7
[INFO] [stderr]    Compiling nibble_vec v0.0.4
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling seccomp-sys v0.1.3
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling reduce v0.1.4
[INFO] [stderr]    Compiling mrsc v0.3.1
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.10.0
[INFO] [stderr]    Compiling libdbus-sys v0.2.2
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling lua52-sys v0.1.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling radix_trie v0.1.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling zmq-sys v0.8.3
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling dbus v0.6.5
[INFO] [stderr]    Compiling users v0.7.0
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling serde_urlencoded v0.5.5
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling zmq v0.8.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling syscallz v0.7.0
[INFO] [stderr]    Compiling caps v0.2.0
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling resolv-conf v0.6.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling dhcp4r v0.1.0
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.86/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="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=072448719be61aba -C extra-filename=-072448719be61aba --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d43b9eeea9b4257f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-8d5920e04f914a4c.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-11d097b41f2e60a4.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (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" "108a5c0306996023bbf60ab6d04750c42cce9584255a85f1e5f4620b423c5f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "108a5c0306996023bbf60ab6d04750c42cce9584255a85f1e5f4620b423c5f72", kill_on_drop: false }`
[INFO] [stdout] 108a5c0306996023bbf60ab6d04750c42cce9584255a85f1e5f4620b423c5f72