[INFO] fetching crate hyperpolyglot 0.1.7...
[INFO] documenting hyperpolyglot-0.1.7 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate hyperpolyglot 0.1.7 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate hyperpolyglot 0.1.7 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hyperpolyglot 0.1.7
[INFO] finished tweaking crates.io crate hyperpolyglot 0.1.7
[INFO] tweaked toml for crates.io crate hyperpolyglot 0.1.7 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate hyperpolyglot 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", 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] 84f19f521417245d0728a544b433b3874515fc591921efc0a5a0bcd797b0abeb
[INFO] running `Command { std: "docker" "start" "-a" "84f19f521417245d0728a544b433b3874515fc591921efc0a5a0bcd797b0abeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84f19f521417245d0728a544b433b3874515fc591921efc0a5a0bcd797b0abeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84f19f521417245d0728a544b433b3874515fc591921efc0a5a0bcd797b0abeb", kill_on_drop: false }`
[INFO] [stdout] 84f19f521417245d0728a544b433b3874515fc591921efc0a5a0bcd797b0abeb
[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" "+1.46.0" "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] a5d7cd1e0edb0b95328441f1e47401af0db4108f0a3970b42717e71c57dafe87
[INFO] running `Command { std: "docker" "start" "-a" "a5d7cd1e0edb0b95328441f1e47401af0db4108f0a3970b42717e71c57dafe87", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking siphasher v0.3.1
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking polyglot_tokenizer v0.2.1
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]    Compiling pcre2-sys v0.2.2
[INFO] [stderr]     Checking ignore v0.4.14
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking pcre2 v0.2.3
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking phf_generator v0.8.0
[INFO] [stderr]     Checking phf_codegen v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking hyperpolyglot v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting hyperpolyglot v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `hyperpolyglot`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name hyperpolyglot src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-3f0a23dc2a02e01e.rmeta --extern ignore=/opt/rustwide/target/debug/deps/libignore-d4053f2e9faa2ae0.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-57a7edc7f441d44c.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-3cc726be5d378cf1.rmeta --extern pcre2=/opt/rustwide/target/debug/deps/libpcre2-2c7aecbef28e9bce.rmeta --extern phf=/opt/rustwide/target/debug/deps/libphf-42019abf43bdb7c8.rmeta --extern phf_codegen=/opt/rustwide/target/debug/deps/libphf_codegen-b73132937c54ba95.rmeta --extern polyglot_tokenizer=/opt/rustwide/target/debug/deps/libpolyglot_tokenizer-879b7aafcdc777e2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-f719778dd7e162aa.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e35dcb1d2a996b36.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-f0dbb42f9a25b85b.rmeta --extern termcolor=/opt/rustwide/target/debug/deps/libtermcolor-4e4cd72f69e3b5a4.rmeta --cap-lints=warn` (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" "a5d7cd1e0edb0b95328441f1e47401af0db4108f0a3970b42717e71c57dafe87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5d7cd1e0edb0b95328441f1e47401af0db4108f0a3970b42717e71c57dafe87", kill_on_drop: false }`
[INFO] [stdout] a5d7cd1e0edb0b95328441f1e47401af0db4108f0a3970b42717e71c57dafe87