[INFO] fetching crate rskafka 0.1.0...
[INFO] checking rskafka-0.1.0 against try#1b0139f5bdae7328e6d232947a8112333bb44eeb for pr-93394
[INFO] extracting crate rskafka 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rskafka 0.1.0 on toolchain 1b0139f5bdae7328e6d232947a8112333bb44eeb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b0139f5bdae7328e6d232947a8112333bb44eeb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-8/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rskafka 0.1.0
[INFO] finished tweaking crates.io crate rskafka 0.1.0
[INFO] tweaked toml for crates.io crate rskafka 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b0139f5bdae7328e6d232947a8112333bb44eeb" "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" "+1b0139f5bdae7328e6d232947a8112333bb44eeb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1b0139f5bdae7328e6d232947a8112333bb44eeb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 950f10943e1b786fbd90ad937f02fe948c0fb40eab4f6ca52f47b68704f26fb6
[INFO] running `Command { std: "docker" "start" "-a" "950f10943e1b786fbd90ad937f02fe948c0fb40eab4f6ca52f47b68704f26fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "950f10943e1b786fbd90ad937f02fe948c0fb40eab4f6ca52f47b68704f26fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "950f10943e1b786fbd90ad937f02fe948c0fb40eab4f6ca52f47b68704f26fb6", kill_on_drop: false }`
[INFO] [stdout] 950f10943e1b786fbd90ad937f02fe948c0fb40eab4f6ca52f47b68704f26fb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1b0139f5bdae7328e6d232947a8112333bb44eeb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7994dd30937250800d493a3b275c0bdd5a515ec7802b2a10c34a187da5f5c9f
[INFO] running `Command { std: "docker" "start" "-a" "b7994dd30937250800d493a3b275c0bdd5a515ec7802b2a10c34a187da5f5c9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking num_threads v0.1.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking crc-catalog v1.1.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking integer-encoding v3.0.2
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling rdkafka-sys v4.2.0+1.8.2
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]     Checking crc v2.1.0
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking tracing-core v0.1.22
[INFO] [stderr]     Checking time v0.3.7
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking rustls-pemfile v0.2.1
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls v0.20.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking proptest v1.0.0
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]    Compiling toml v0.5.8
[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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=90bcff6b99beb4f9 -C extra-filename=-90bcff6b99beb4f9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d937f1f82ffb437d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-4040e84c0ddb8645.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3c8a88541efd8c80.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" "b7994dd30937250800d493a3b275c0bdd5a515ec7802b2a10c34a187da5f5c9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7994dd30937250800d493a3b275c0bdd5a515ec7802b2a10c34a187da5f5c9f", kill_on_drop: false }`
[INFO] [stdout] b7994dd30937250800d493a3b275c0bdd5a515ec7802b2a10c34a187da5f5c9f