[INFO] crate hyperpolyglot 0.1.5 is already in cache
[INFO] documenting hyperpolyglot-0.1.5 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate hyperpolyglot 0.1.5 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate hyperpolyglot 0.1.5 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hyperpolyglot 0.1.5
[INFO] finished tweaking crates.io crate hyperpolyglot 0.1.5
[INFO] tweaked toml for crates.io crate hyperpolyglot 0.1.5 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate hyperpolyglot 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] d40ad63186aaaa549a2fd6c5988913d6b56bb337482d35a9e2565d4d4238fe0d
[INFO] running `Command { std: "docker" "start" "-a" "d40ad63186aaaa549a2fd6c5988913d6b56bb337482d35a9e2565d4d4238fe0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d40ad63186aaaa549a2fd6c5988913d6b56bb337482d35a9e2565d4d4238fe0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d40ad63186aaaa549a2fd6c5988913d6b56bb337482d35a9e2565d4d4238fe0d", kill_on_drop: false }`
[INFO] [stdout] d40ad63186aaaa549a2fd6c5988913d6b56bb337482d35a9e2565d4d4238fe0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] a359f54c088765c20d08f7390203a7ae3d1598f568b3461859ebd3e313773d86
[INFO] running `Command { std: "docker" "start" "-a" "a359f54c088765c20d08f7390203a7ae3d1598f568b3461859ebd3e313773d86", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking siphasher v0.3.1
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling beef v0.4.2
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking regex v1.3.5
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling pcre2-sys v0.2.2
[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 crossbeam-channel v0.4.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking pcre2 v0.2.3
[INFO] [stderr]     Checking ignore v0.4.14
[INFO] [stderr]     Checking phf_generator v0.8.0
[INFO] [stderr]     Checking phf_codegen v0.8.0
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]     Checking logos v0.11.4
[INFO] [stderr]     Checking polyglot_tokenizer v0.1.2
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking hyperpolyglot v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting hyperpolyglot v0.1.5 (/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-73c0990f5ac60373.rmeta --extern ignore=/opt/rustwide/target/debug/deps/libignore-2cb4d92b439c178a.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-b2c940d7bd864b5c.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-1d14c5f08fb0bf01.rmeta --extern pcre2=/opt/rustwide/target/debug/deps/libpcre2-842efd7e486bcf6c.rmeta --extern phf=/opt/rustwide/target/debug/deps/libphf-ad9c72ad73bbb50f.rmeta --extern phf_codegen=/opt/rustwide/target/debug/deps/libphf_codegen-68c5654f34d406b5.rmeta --extern polyglot_tokenizer=/opt/rustwide/target/debug/deps/libpolyglot_tokenizer-046540ffa1c4b27b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-c5df0c43dd2d0024.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-76513de187651ce5.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-c07d2e644203a1ac.rmeta --extern termcolor=/opt/rustwide/target/debug/deps/libtermcolor-0d47dfaf7682a2d2.rmeta --cap-lints=forbid` (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" "a359f54c088765c20d08f7390203a7ae3d1598f568b3461859ebd3e313773d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a359f54c088765c20d08f7390203a7ae3d1598f568b3461859ebd3e313773d86", kill_on_drop: false }`
[INFO] [stdout] a359f54c088765c20d08f7390203a7ae3d1598f568b3461859ebd3e313773d86