[INFO] fetching crate witty-phrase-generator 0.2.0...
[INFO] documenting witty-phrase-generator-0.2.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate witty-phrase-generator 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate witty-phrase-generator 0.2.0 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate witty-phrase-generator 0.2.0
[INFO] finished tweaking crates.io crate witty-phrase-generator 0.2.0
[INFO] tweaked toml for crates.io crate witty-phrase-generator 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate witty-phrase-generator 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "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] b14c3be87aadc19843087726e5fd54d2cd50e5571ebcd163cc4b0ca8ffa55175
[INFO] running `Command { std: "docker" "start" "-a" "b14c3be87aadc19843087726e5fd54d2cd50e5571ebcd163cc4b0ca8ffa55175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b14c3be87aadc19843087726e5fd54d2cd50e5571ebcd163cc4b0ca8ffa55175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b14c3be87aadc19843087726e5fd54d2cd50e5571ebcd163cc4b0ca8ffa55175", kill_on_drop: false }`
[INFO] [stdout] b14c3be87aadc19843087726e5fd54d2cd50e5571ebcd163cc4b0ca8ffa55175
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "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] 9ad0ec3cbd666d1219fc9e8db0de3ba428ecdfa8cf236e5fb7e0e891ddf7f2dc
[INFO] running `Command { std: "docker" "start" "-a" "9ad0ec3cbd666d1219fc9e8db0de3ba428ecdfa8cf236e5fb7e0e891ddf7f2dc", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `witty-phrase-generator` in package `witty-phrase-generator v0.2.0 (/opt/rustwide/workdir)` has the same output filename as the lib target `witty_phrase_generator` in package `witty-phrase-generator v0.2.0 (/opt/rustwide/workdir)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/doc/witty_phrase_generator/index.html
[INFO] [stderr] The output filenames should be unique.
[INFO] [stderr] This is a known bug where multiple crates with the same name use
[INFO] [stderr] the same path; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] If this looks unexpected, it may be a bug in Cargo. Please file a bug report at
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/ with as much information as you
[INFO] [stderr] can provide.
[INFO] [stderr] cargo 1.62.0-beta.2 (3f052d8ee 2022-05-12) running on `x86_64-unknown-linux-gnu` target `x86_64-unknown-linux-gnu`
[INFO] [stderr] First unit: Unit { pkg: Package { id: PackageId { name: "witty-phrase-generator", version: "0.2.0", source: "/opt/rustwide/workdir" }, ..: ".." }, target: TargetInner { name: "witty-phrase-generator", doc: true, ..: with_path("/opt/rustwide/workdir/src/main.rs", Edition2018) }, profile: Profile { incremental: false, ..: default_dev() }, kind: Host, mode: Doc { deps: false }, features: [], artifact: false, is_std: false, dep_hash: 6136245389245836703 }
[INFO] [stderr] Second unit: Unit { pkg: Package { id: PackageId { name: "witty-phrase-generator", version: "0.2.0", source: "/opt/rustwide/workdir" }, ..: ".." }, target: TargetInner { ..: lib_target("witty_phrase_generator", ["lib"], "/opt/rustwide/workdir/src/lib.rs", Edition2018) }, profile: Profile { incremental: false, ..: default_dev() }, kind: Host, mode: Doc { deps: false }, features: [], artifact: false, is_std: false, dep_hash: 9565942103031780789 }
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]  Documenting witty-phrase-generator v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking witty-phrase-generator v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.43s
[INFO] running `Command { std: "docker" "inspect" "9ad0ec3cbd666d1219fc9e8db0de3ba428ecdfa8cf236e5fb7e0e891ddf7f2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ad0ec3cbd666d1219fc9e8db0de3ba428ecdfa8cf236e5fb7e0e891ddf7f2dc", kill_on_drop: false }`
[INFO] [stdout] 9ad0ec3cbd666d1219fc9e8db0de3ba428ecdfa8cf236e5fb7e0e891ddf7f2dc
[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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] bf77b446465858e942d2258b199eff418eec6763fd6bb5d43a53c55a043b676d
[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" "bf77b446465858e942d2258b199eff418eec6763fd6bb5d43a53c55a043b676d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]  Documenting witty-phrase-generator v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.21s
[INFO] running `Command { std: "docker" "inspect" "bf77b446465858e942d2258b199eff418eec6763fd6bb5d43a53c55a043b676d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf77b446465858e942d2258b199eff418eec6763fd6bb5d43a53c55a043b676d", kill_on_drop: false }`
[INFO] [stdout] bf77b446465858e942d2258b199eff418eec6763fd6bb5d43a53c55a043b676d