[INFO] fetching crate exonum-btc-anchoring 1.0.0...
[INFO] documenting exonum-btc-anchoring-1.0.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate exonum-btc-anchoring 1.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate exonum-btc-anchoring 1.0.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate exonum-btc-anchoring 1.0.0
[INFO] finished tweaking crates.io crate exonum-btc-anchoring 1.0.0
[INFO] tweaked toml for crates.io crate exonum-btc-anchoring 1.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate exonum-btc-anchoring 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f02620a2256c926c4a0f7cb3bb77ac8208ebdf36615dc1302fd459af7c4c8b9
[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" "7f02620a2256c926c4a0f7cb3bb77ac8208ebdf36615dc1302fd459af7c4c8b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f02620a2256c926c4a0f7cb3bb77ac8208ebdf36615dc1302fd459af7c4c8b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f02620a2256c926c4a0f7cb3bb77ac8208ebdf36615dc1302fd459af7c4c8b9", kill_on_drop: false }`
[INFO] [stdout] 7f02620a2256c926c4a0f7cb3bb77ac8208ebdf36615dc1302fd459af7c4c8b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.47.0" "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] 6c6a8ed12b3a6b033da194f40d10eccfebbd8eb06a633381e07a8f418c5d4be8
[INFO] running `Command { std: "docker" "start" "-a" "6c6a8ed12b3a6b033da194f40d10eccfebbd8eb06a633381e07a8f418c5d4be8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling protobuf v2.12.0
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking arc-swap v0.4.5
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]     Checking copyless v0.1.4
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling bindgen v0.53.2
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking base64 v0.12.0
[INFO] [stderr]     Checking bit-vec v0.6.1
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]     Checking bech32 v0.7.2
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking bytestring v0.1.5
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking lock_api v0.3.3
[INFO] [stderr]    Compiling miniz_oxide v0.3.6
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]     Checking log v0.3.9
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[INFO] [stderr]    Compiling protoc v2.12.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking base64 v0.9.3
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[INFO] [stderr]     Checking regex v1.3.6
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[INFO] [stderr]    Compiling mime_guess v2.0.3
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[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
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[INFO] [stderr]    Compiling rayon-core v1.7.0
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[INFO] [stderr]     Checking url v1.7.2
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[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking rand v0.7.3
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[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling bzip2-sys v0.1.8+1.0.8
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling secp256k1-sys v0.1.2
[INFO] [stderr]     Checking secret-tree v0.2.0
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling zip v0.5.5
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]    Compiling actix-macros v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[INFO] [stderr]    Compiling async-trait v0.1.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.14
[INFO] [stderr]    Compiling actix-web-codegen v0.2.1
[INFO] [stderr]    Compiling ctor v0.1.13
[INFO] [stderr]    Compiling actix_derive v0.5.0
[INFO] [stderr]    Compiling exonum_libsodium-sys v0.0.23
[INFO] [stderr] error: could not compile `darling_core`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name darling_core /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/darling_core-0.10.2/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="strsim"' --cfg 'feature="suggestions"' -C metadata=54bbf61b9ac5ade9 -C extra-filename=-54bbf61b9ac5ade9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern fnv=/opt/rustwide/target/debug/deps/libfnv-f34a80f1f2884e58.rmeta --extern ident_case=/opt/rustwide/target/debug/deps/libident_case-7b48ca133033d046.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f429386d8aae15dc.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c754e6c0c5624120.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-37fc731631b1e214.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-197b915baa2ba2ac.rmeta --cap-lints allow` (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" "6c6a8ed12b3a6b033da194f40d10eccfebbd8eb06a633381e07a8f418c5d4be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c6a8ed12b3a6b033da194f40d10eccfebbd8eb06a633381e07a8f418c5d4be8", kill_on_drop: false }`
[INFO] [stdout] 6c6a8ed12b3a6b033da194f40d10eccfebbd8eb06a633381e07a8f418c5d4be8
