[INFO] fetching crate pipitor 0.3.0-alpha.8...
[INFO] documenting pipitor-0.3.0-alpha.8 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate pipitor 0.3.0-alpha.8 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pipitor 0.3.0-alpha.8 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 pipitor 0.3.0-alpha.8
[INFO] finished tweaking crates.io crate pipitor 0.3.0-alpha.8
[INFO] tweaked toml for crates.io crate pipitor 0.3.0-alpha.8 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate pipitor 0.3.0-alpha.8 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] [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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] c6a67bb24cd3f3270f5ce7a0931c58dc99913ddff6d497e0c525300f7451d70c
[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" "c6a67bb24cd3f3270f5ce7a0931c58dc99913ddff6d497e0c525300f7451d70c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6a67bb24cd3f3270f5ce7a0931c58dc99913ddff6d497e0c525300f7451d70c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a67bb24cd3f3270f5ce7a0931c58dc99913ddff6d497e0c525300f7451d70c", kill_on_drop: false }`
[INFO] [stdout] c6a67bb24cd3f3270f5ce7a0931c58dc99913ddff6d497e0c525300f7451d70c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] ef803b72fb25521d4bf2b0750f7794b6e0eff54ce051c8a5bf71fdaeb21113c2
[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" "ef803b72fb25521d4bf2b0750f7794b6e0eff54ce051c8a5bf71fdaeb21113c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling either v1.6.0
[INFO] [stderr]    Compiling typed-arena v1.7.0
[INFO] [stderr]    Compiling auto_enums_derive v0.7.5
[INFO] [stderr]     Checking annotate-snippets v0.7.0
[INFO] [stderr]     Checking slice-of-array v0.2.1
[INFO] [stderr]    Compiling libsqlite3-sys v0.18.0
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking listenfd v0.3.3
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking quick-xml v0.18.1
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling pretty v0.5.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]     Checking async-compression v0.3.5
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking diligent-date-parser v0.1.2
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling abnf v0.6.1
[INFO] [stderr]    Compiling abnf_to_pest v0.5.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling derive_utils v0.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]    Compiling dhall v0.6.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling pest_consume_macros v1.0.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]    Compiling dhall_proc_macros v0.5.0
[INFO] [stderr]    Compiling auto_enums_core v0.7.5
[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=3a4d6e5dcc1a8c11 -C extra-filename=-3a4d6e5dcc1a8c11 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern fnv=/opt/rustwide/target/debug/deps/libfnv-551fbd3154ffd6a8.rmeta --extern ident_case=/opt/rustwide/target/debug/deps/libident_case-7b48ca133033d046.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c893c47f7fec5f12.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-05588c6760812b69.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-37fc731631b1e214.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-e1a426d7b91e7e35.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" "ef803b72fb25521d4bf2b0750f7794b6e0eff54ce051c8a5bf71fdaeb21113c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef803b72fb25521d4bf2b0750f7794b6e0eff54ce051c8a5bf71fdaeb21113c2", kill_on_drop: false }`
[INFO] [stdout] ef803b72fb25521d4bf2b0750f7794b6e0eff54ce051c8a5bf71fdaeb21113c2
