[INFO] fetching crate ether-dream-dac-emulator 0.3.0...
[INFO] checking ether-dream-dac-emulator-0.3.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate ether-dream-dac-emulator 0.3.0 into /workspace/builds/worker-60/source
[INFO] validating manifest of crates.io crate ether-dream-dac-emulator 0.3.0 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 crates.io crate ether-dream-dac-emulator 0.3.0
[INFO] finished tweaking crates.io crate ether-dream-dac-emulator 0.3.0
[INFO] tweaked toml for crates.io crate ether-dream-dac-emulator 0.3.0 written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] crate crates.io crate ether-dream-dac-emulator 0.3.0 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 }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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] f0463ee2de4ce7f37cfe7850202f53f21b55712bfbef5303bac1d29e3ff1a2dc
[INFO] running `Command { std: "docker" "start" "-a" "f0463ee2de4ce7f37cfe7850202f53f21b55712bfbef5303bac1d29e3ff1a2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0463ee2de4ce7f37cfe7850202f53f21b55712bfbef5303bac1d29e3ff1a2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0463ee2de4ce7f37cfe7850202f53f21b55712bfbef5303bac1d29e3ff1a2dc", kill_on_drop: false }`
[INFO] [stdout] f0463ee2de4ce7f37cfe7850202f53f21b55712bfbef5303bac1d29e3ff1a2dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e8175f361f586c11e72da8e2b48795dbfbe34b253b857cb434ec60b3de97b9a
[INFO] running `Command { std: "docker" "start" "-a" "5e8175f361f586c11e72da8e2b48795dbfbe34b253b857cb434ec60b3de97b9a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]     Checking ether-dream v0.2.5
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking euclid v0.20.11
[INFO] [stderr]     Checking sid v0.6.1
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking pennereq v0.3.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking piston-viewport v0.5.0
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking relevant v0.4.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking lyon_geom v0.15.3
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking lyon_path v0.15.2
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking lyon_tessellation v0.15.8
[INFO] [stderr]     Checking lyon_algorithms v0.15.0
[INFO] [stderr]     Checking daggy v0.5.0
[INFO] [stderr]     Checking daggy v0.6.0
[INFO] [stderr]     Checking lyon v0.15.8
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking gfx-hal v0.4.1
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]     Checking ash v0.29.0
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking andrew v0.2.1
[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-1.0.22/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=5918845d6a5ed96a -C extra-filename=-5918845d6a5ed96a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c61925b6f5009d52.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-80c9e1bd222539fe.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-b1a0994eb3258d73.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" "5e8175f361f586c11e72da8e2b48795dbfbe34b253b857cb434ec60b3de97b9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e8175f361f586c11e72da8e2b48795dbfbe34b253b857cb434ec60b3de97b9a", kill_on_drop: false }`
[INFO] [stdout] 5e8175f361f586c11e72da8e2b48795dbfbe34b253b857cb434ec60b3de97b9a
