[INFO] cloning repository https://github.com/svenstaro/proby
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svenstaro/proby" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenstaro%2Fproby", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenstaro%2Fproby'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6901fb877a9548931b0d6c641ccaba140fcc37b0
[INFO] documenting svenstaro/proby against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenstaro%2Fproby" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/svenstaro/proby on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/svenstaro/proby
[INFO] finished tweaking git repo https://github.com/svenstaro/proby
[INFO] tweaked toml for git repo https://github.com/svenstaro/proby written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/svenstaro/proby already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_qs v0.7.2
[INFO] [stderr]   Downloaded doc-comment v0.3.3
[INFO] [stderr]   Downloaded difflib v0.4.0
[INFO] [stderr]   Downloaded itertools v0.10.1
[INFO] [stderr]   Downloaded isahc v0.9.14
[INFO] [stderr]   Downloaded spinning_top v0.2.2
[INFO] [stderr]   Downloaded wait-timeout v0.2.0
[INFO] [stderr]   Downloaded port_check v0.1.5
[INFO] [stderr]   Downloaded predicates-core v1.0.2
[INFO] [stderr]   Downloaded predicates v2.0.0
[INFO] [stderr]   Downloaded serde_with v1.9.4
[INFO] [stderr]   Downloaded infer v0.2.3
[INFO] [stderr]   Downloaded dashmap v4.0.2
[INFO] [stderr]   Downloaded http-types v2.10.0
[INFO] [stderr]   Downloaded assert_cmd v2.0.0
[INFO] [stderr]   Downloaded http-client v6.3.5
[INFO] [stderr]   Downloaded curl v0.4.35
[INFO] [stderr]   Downloaded flume v0.9.2
[INFO] [stderr]   Downloaded nb-connect v1.1.0
[INFO] [stderr]   Downloaded data-encoding v2.3.2
[INFO] [stderr]   Downloaded curl-sys v0.4.41+curl-7.75.0
[INFO] [stderr]   Downloaded vec-arena v1.1.0
[INFO] [stderr]   Downloaded surf v2.2.0
[INFO] [stderr]   Downloaded predicates-tree v1.0.2
[INFO] [stderr]   Downloaded rustversion v1.0.4
[INFO] [stderr]   Downloaded darling_core v0.13.0
[INFO] [stderr]   Downloaded darling_macro v0.13.0
[INFO] [stderr]   Downloaded darling v0.13.0
[INFO] [stderr]   Downloaded serde_with_macros v1.4.2
[INFO] [stderr]   Downloaded simplelog v0.10.0
[INFO] [stderr]   Downloaded structopt-derive v0.4.15
[INFO] [stderr]   Downloaded structopt v0.3.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1e222a1172c31a91a9cb7d0f010f11c9b6b886c1a035009810ad0927c834480
[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" "a1e222a1172c31a91a9cb7d0f010f11c9b6b886c1a035009810ad0927c834480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1e222a1172c31a91a9cb7d0f010f11c9b6b886c1a035009810ad0927c834480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1e222a1172c31a91a9cb7d0f010f11c9b6b886c1a035009810ad0927c834480", kill_on_drop: false }`
[INFO] [stdout] a1e222a1172c31a91a9cb7d0f010f11c9b6b886c1a035009810ad0927c834480
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a36a9769026b07506bb3cef7e4f5cf2dcd2c685422d3aa1d53f959108636dc20
[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" "a36a9769026b07506bb3cef7e4f5cf2dcd2c685422d3aa1d53f959108636dc20", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]    Compiling const_fn v0.4.6
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking brotli-sys v0.3.2
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking aes-soft v0.6.4
[INFO] [stderr]     Checking ctr v0.6.0
[INFO] [stderr]     Checking polyval v0.4.5
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]     Checking hkdf v0.10.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking aes v0.6.0
[INFO] [stderr]     Checking ghash v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking aes-gcm v0.8.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]    Compiling actix-macros v0.1.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]    Compiling pin-project-internal v1.0.6
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling actix-web-codegen v0.4.0
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[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 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/darling_core-0.13.0/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=52735f897279cbda -C extra-filename=-52735f897279cbda --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern fnv=/opt/rustwide/target/debug/deps/libfnv-059813dc4f8dd4c8.rmeta --extern ident_case=/opt/rustwide/target/debug/deps/libident_case-6271d6d0bfb12270.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c817d63bd18ae091.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e330fece14a2de7c.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-ebf03c86b56fe678.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-575e195a93d5555c.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" "a36a9769026b07506bb3cef7e4f5cf2dcd2c685422d3aa1d53f959108636dc20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a36a9769026b07506bb3cef7e4f5cf2dcd2c685422d3aa1d53f959108636dc20", kill_on_drop: false }`
[INFO] [stdout] a36a9769026b07506bb3cef7e4f5cf2dcd2c685422d3aa1d53f959108636dc20
