[INFO] fetching crate ckb-capsule 0.4.1...
[INFO] documenting ckb-capsule-0.4.1 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate ckb-capsule 0.4.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate ckb-capsule 0.4.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ckb-capsule 0.4.1
[INFO] finished tweaking crates.io crate ckb-capsule 0.4.1
[INFO] tweaked toml for crates.io crate ckb-capsule 0.4.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate ckb-capsule 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_edit v0.1.5
[INFO] [stderr]   Downloaded includedir v0.6.0
[INFO] [stderr]   Downloaded ckb-vm-definitions v0.19.1
[INFO] [stderr]   Downloaded ctrlc v3.1.5
[INFO] [stderr]   Downloaded includedir_codegen v0.6.0
[INFO] [stderr]   Downloaded tera v1.4.0
[INFO] [stderr]   Downloaded ckb-vm v0.19.1
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e3dd63cc0a0833443da207deb0746876a47539abeb2bd6cf3460b629a858ca2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0e3dd63cc0a0833443da207deb0746876a47539abeb2bd6cf3460b629a858ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e3dd63cc0a0833443da207deb0746876a47539abeb2bd6cf3460b629a858ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e3dd63cc0a0833443da207deb0746876a47539abeb2bd6cf3460b629a858ca2", kill_on_drop: false }`
[INFO] [stdout] 0e3dd63cc0a0833443da207deb0746876a47539abeb2bd6cf3460b629a858ca2
[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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 09393a1294186e0594ad374b928b8ba76fa6504286a7f203831a21d944341a1e
[INFO] running `Command { std: "docker" "start" "-a" "09393a1294186e0594ad374b928b8ba76fa6504286a7f203831a21d944341a1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling object v0.20.0
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling encoding_rs v0.8.23
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]     Checking ckb-vm-definitions v0.19.1
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking bech32 v0.6.0
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.0
[INFO] [stderr]     Checking tracing-core v0.1.11
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking proc-macro2 v1.0.19
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tracing v0.1.17
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking lru v0.6.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]     Checking globwalk v0.8.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling flate2 v1.0.16
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking uname v0.1.1
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking users v0.10.0
[INFO] [stderr]     Checking rpassword v4.0.5
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling includedir v0.5.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking includedir v0.6.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]    Compiling includedir_codegen v0.5.0
[INFO] [stderr]     Checking ckb-util v0.37.0-pre
[INFO] [stderr]     Checking tokio v0.1.22
[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-1.0.36/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=590f1dd9347fad09 -C extra-filename=-590f1dd9347fad09 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-71c5aa24984e0547.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-86659819dd43cd20.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-b888af50774a486c.rmeta --cap-lints allow --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" "09393a1294186e0594ad374b928b8ba76fa6504286a7f203831a21d944341a1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09393a1294186e0594ad374b928b8ba76fa6504286a7f203831a21d944341a1e", kill_on_drop: false }`
[INFO] [stdout] 09393a1294186e0594ad374b928b8ba76fa6504286a7f203831a21d944341a1e
