[INFO] fetching crate html-diff 0.0.6...
[INFO] documenting html-diff-0.0.6 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate html-diff 0.0.6 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate html-diff 0.0.6 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate html-diff 0.0.6
[INFO] finished tweaking crates.io crate html-diff 0.0.6
[INFO] tweaked toml for crates.io crate html-diff 0.0.6 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v0.3.4
[INFO] [stderr]   Downloaded markup5ever v0.5.0
[INFO] [stderr]   Downloaded kuchiki v0.6.0
[INFO] [stderr]   Downloaded selectors v0.18.0
[INFO] [stderr]   Downloaded html5ever v0.20.0
[INFO] [stderr]   Downloaded cssparser v0.13.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b89f2a7a7e4ac58721a88d4bad0d69a266a70d298df54e658d9876650ab88567
[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" "b89f2a7a7e4ac58721a88d4bad0d69a266a70d298df54e658d9876650ab88567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b89f2a7a7e4ac58721a88d4bad0d69a266a70d298df54e658d9876650ab88567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b89f2a7a7e4ac58721a88d4bad0d69a266a70d298df54e658d9876650ab88567", kill_on_drop: false }`
[INFO] [stdout] b89f2a7a7e4ac58721a88d4bad0d69a266a70d298df54e658d9876650ab88567
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2020-08-29" "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] 6c1f3f01c806492fe88457846a8c3fcb1d4dbcaca51bb7b8f6e3ce588e8d1489
[INFO] running `Command { std: "docker" "start" "-a" "6c1f3f01c806492fe88457846a8c3fcb1d4dbcaca51bb7b8f6e3ce588e8d1489", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `html_diff` in package `html-diff v0.0.6 (/opt/rustwide/workdir)` has the same output filename as the lib target `html-diff` in package `html-diff v0.0.6 (/opt/rustwide/workdir)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/doc/html_diff/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 1.47.0-beta (51b66125b 2020-08-19) running on `x86_64-unknown-linux-gnu` target `x86_64-unknown-linux-gnu`
[INFO] [stderr] First unit: Unit { pkg: Package { id: PackageId { name: "html-diff", version: "0.0.6", source: "/opt/rustwide/workdir" }, ..: ".." }, target: TargetInner { name: "html_diff", doc: true, ..: with_path("/opt/rustwide/workdir/src/main.rs", Edition2015) }, profile: Profile { name: "doc", debuginfo: Some(2), debug_assertions: true, overflow_checks: true, ..: default() }, kind: Host, mode: Doc { deps: false }, features: [] }
[INFO] [stderr] Second unit: Unit { pkg: Package { id: PackageId { name: "html-diff", version: "0.0.6", source: "/opt/rustwide/workdir" }, ..: ".." }, target: TargetInner { ..: lib_target("html-diff", ["lib"], "/opt/rustwide/workdir/src/lib.rs", Edition2015) }, profile: Profile { name: "doc", debuginfo: Some(2), debug_assertions: true, overflow_checks: true, ..: default() }, kind: Host, mode: Doc { deps: false }, features: [] }
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling procedural-masquerade v0.1.7
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking smallvec v0.3.4
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]    Compiling selectors v0.18.0
[INFO] [stderr]    Compiling string_cache v0.6.2
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling markup5ever v0.5.0
[INFO] [stderr]    Compiling cssparser v0.13.7
[INFO] [stderr]    Compiling html5ever v0.20.0
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]     Checking kuchiki v0.6.0
[INFO] [stderr]     Checking html-diff v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting html-diff v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.04s
[INFO] running `Command { std: "docker" "inspect" "6c1f3f01c806492fe88457846a8c3fcb1d4dbcaca51bb7b8f6e3ce588e8d1489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c1f3f01c806492fe88457846a8c3fcb1d4dbcaca51bb7b8f6e3ce588e8d1489", kill_on_drop: false }`
[INFO] [stdout] 6c1f3f01c806492fe88457846a8c3fcb1d4dbcaca51bb7b8f6e3ce588e8d1489