[INFO] fetching crate viceroy-lib 0.2.2...
[INFO] testing viceroy-lib-0.2.2 against 1.54.0 for beta-1.55-1
[INFO] extracting crate viceroy-lib 0.2.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate viceroy-lib 0.2.2 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate viceroy-lib 0.2.2
[INFO] finished tweaking crates.io crate viceroy-lib 0.2.2
[INFO] tweaked toml for crates.io crate viceroy-lib 0.2.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cranelift-entity v0.65.0
[INFO] [stderr]   Downloaded wasi-tokio v0.28.0
[INFO] [stderr]   Downloaded fastly-shared v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a10d0ec6962dbaeb398d002b4283b1313142731e423ca3c4dae749c820263f1
[INFO] running `Command { std: "docker" "start" "-a" "0a10d0ec6962dbaeb398d002b4283b1313142731e423ca3c4dae749c820263f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a10d0ec6962dbaeb398d002b4283b1313142731e423ca3c4dae749c820263f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a10d0ec6962dbaeb398d002b4283b1313142731e423ca3c4dae749c820263f1", kill_on_drop: false }`
[INFO] [stdout] 0a10d0ec6962dbaeb398d002b4283b1313142731e423ca3c4dae749c820263f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1792223c88a1f90d55216bcb65431711bbd98b13838e12cfbeb12c7ec0c20d0
[INFO] running `Command { std: "docker" "start" "-a" "d1792223c88a1f90d55216bcb65431711bbd98b13838e12cfbeb12c7ec0c20d0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling target-lexicon v0.12.1
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling wasmparser v0.78.2
[INFO] [stderr]    Compiling more-asserts v0.2.1
[INFO] [stderr]    Compiling leb128 v0.2.4
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling zstd-safe v3.0.1+zstd.1.4.9
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling ipnet v2.3.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling maybe-owned v0.3.4
[INFO] [stderr]    Compiling cpp_demangle v0.3.3
[INFO] [stderr]    Compiling wasmtime-cache v0.28.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling wasi-common v0.28.0
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling httpdate v1.0.1
[INFO] [stderr]    Compiling wasmtime-wasi v0.28.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling cranelift-entity v0.65.0
[INFO] [stderr]    Compiling bytesize v1.1.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling semver v0.10.0
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling io-lifetimes v0.1.1
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling system-interface v0.6.6
[INFO] [stderr]    Compiling wast v35.0.2
[INFO] [stderr]    Compiling wast v37.0.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling sha2 v0.9.5
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling jobserver v0.1.23
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling errno v0.2.7
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling directories-next v2.0.0
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling shellexpand v2.1.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling file-per-thread-logger v0.1.4
[INFO] [stderr]    Compiling http-body v0.4.2
[INFO] [stderr]    Compiling fastly-shared v0.3.2
[INFO] [stderr]    Compiling unsafe-io v0.6.12
[INFO] [stderr]    Compiling cap-primitives v0.13.10
[INFO] [stderr]    Compiling cap-std v0.13.10
[INFO] [stderr]    Compiling cap-fs-ext v0.13.10
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling posish v0.6.3
[INFO] [stderr]    Compiling zstd-sys v1.4.20+zstd.1.4.9
[INFO] [stderr]    Compiling wasmtime-fiber v0.28.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling wasmtime-runtime v0.28.0
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling psm v0.1.14
[INFO] [stderr]    Compiling cap-rand v0.13.10
[INFO] [stderr]    Compiling fs-set-times v0.3.1
[INFO] [stderr]    Compiling wat v1.0.39
[INFO] [stderr]    Compiling cap-time-ext v0.13.10
[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-1.0.74/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="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=b1e2911c0722b208 -C extra-filename=-b1e2911c0722b208 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4ad853a01b52ac03.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-8388bbcd500a3679.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-521ae656dc054791.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" "d1792223c88a1f90d55216bcb65431711bbd98b13838e12cfbeb12c7ec0c20d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1792223c88a1f90d55216bcb65431711bbd98b13838e12cfbeb12c7ec0c20d0", kill_on_drop: false }`
[INFO] [stdout] d1792223c88a1f90d55216bcb65431711bbd98b13838e12cfbeb12c7ec0c20d0