[INFO] fetching crate otter-api-tests 0.7.3...
[INFO] documenting otter-api-tests-0.7.3 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate otter-api-tests 0.7.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate otter-api-tests 0.7.3 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 otter-api-tests 0.7.3
[INFO] finished tweaking crates.io crate otter-api-tests 0.7.3
[INFO] tweaked toml for crates.io crate otter-api-tests 0.7.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate otter-api-tests 0.7.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] d47aef7002ca92ec43909f38c8e23a3823b37adf02208c633a6444b5f389b01f
[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" "d47aef7002ca92ec43909f38c8e23a3823b37adf02208c633a6444b5f389b01f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d47aef7002ca92ec43909f38c8e23a3823b37adf02208c633a6444b5f389b01f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d47aef7002ca92ec43909f38c8e23a3823b37adf02208c633a6444b5f389b01f", kill_on_drop: false }`
[INFO] [stdout] d47aef7002ca92ec43909f38c8e23a3823b37adf02208c633a6444b5f389b01f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] da118bb912d0f822fc78796751b23ce1abfb56dd3cf2926d19503b19427c1a08
[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" "da118bb912d0f822fc78796751b23ce1abfb56dd3cf2926d19503b19427c1a08", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking siphasher v0.3.5
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking if_chain v1.0.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking lazy-init v0.5.0
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling slotmap-fork-otter v1.0.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking dtoa-short v0.3.3
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking uds v0.2.6
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking openssl-sys v0.9.65
[INFO] [stderr]     Checking bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking futures-util v0.3.16
[INFO] [stderr]    Compiling derive-into-owned v0.1.0
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking rmp v0.8.10
[INFO] [stderr]     Checking vecdeque-stableix v1.0.0
[INFO] [stderr]     Checking ordered-float v2.7.0
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking nix v0.22.0
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling enum-map-derive v0.6.0
[INFO] [stderr]    Compiling typetag-impl v0.1.7
[INFO] [stderr]    Compiling enum_dispatch v0.3.7
[INFO] [stderr]    Compiling delegate v0.6.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking num-bigint v0.4.0
[INFO] [stderr]     Checking bzip2 v0.4.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking openssl v0.10.35
[INFO] [stderr]     Checking tokio v1.9.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]    Compiling extend v1.1.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking zip v0.5.13
[INFO] [stderr] error: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.126/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=a601a9ecbd5169f1 -C extra-filename=-a601a9ecbd5169f1 --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.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-8388bbcd500a3679.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-7aa8c3ec6ec6a15d.rlib --extern proc_macro --cap-lints allow --cfg underscore_consts` (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" "da118bb912d0f822fc78796751b23ce1abfb56dd3cf2926d19503b19427c1a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da118bb912d0f822fc78796751b23ce1abfb56dd3cf2926d19503b19427c1a08", kill_on_drop: false }`
[INFO] [stdout] da118bb912d0f822fc78796751b23ce1abfb56dd3cf2926d19503b19427c1a08
