[INFO] fetching crate exonum-system-api 1.0.0...
[INFO] documenting exonum-system-api-1.0.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate exonum-system-api 1.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate exonum-system-api 1.0.0 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 exonum-system-api 1.0.0
[INFO] finished tweaking crates.io crate exonum-system-api 1.0.0
[INFO] tweaked toml for crates.io crate exonum-system-api 1.0.0 written to /workspace/builds/worker-1/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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 25636d159a1ea4baef6378397b0eea7a2a81b54879a4971e46d5cce2f4eef025
[INFO] running `Command { std: "docker" "start" "-a" "25636d159a1ea4baef6378397b0eea7a2a81b54879a4971e46d5cce2f4eef025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25636d159a1ea4baef6378397b0eea7a2a81b54879a4971e46d5cce2f4eef025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25636d159a1ea4baef6378397b0eea7a2a81b54879a4971e46d5cce2f4eef025", kill_on_drop: false }`
[INFO] [stdout] 25636d159a1ea4baef6378397b0eea7a2a81b54879a4971e46d5cce2f4eef025
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 801cfbb52cb2daae33deba361981450e80cd1c4383f6dc5673fb1e339e5d56eb
[INFO] running `Command { std: "docker" "start" "-a" "801cfbb52cb2daae33deba361981450e80cd1c4383f6dc5673fb1e339e5d56eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling protobuf v2.25.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]    Compiling bindgen v0.59.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling shlex v1.0.0
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking bytestring v1.0.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling actix-macros v0.1.3
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling actix-web-codegen v0.2.2
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling jobserver v0.1.23
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr] error: could not compile `serde`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.127/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="serde_derive"' --cfg 'feature="std"' -C metadata=df1c680f233dbcab -C extra-filename=-df1c680f233dbcab --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-5695adbd78d50f24.so --cap-lints allow --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_boxed_path --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero --cfg serde_derive --cfg core_try_from --cfg num_nonzero_signed --cfg systemtime_checked_add --cfg std_atomic64 --cfg std_atomic` (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" "801cfbb52cb2daae33deba361981450e80cd1c4383f6dc5673fb1e339e5d56eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "801cfbb52cb2daae33deba361981450e80cd1c4383f6dc5673fb1e339e5d56eb", kill_on_drop: false }`
[INFO] [stdout] 801cfbb52cb2daae33deba361981450e80cd1c4383f6dc5673fb1e339e5d56eb
