[INFO] fetching crate html5ever_macros 0.2.7...
[INFO] documenting html5ever_macros-0.2.7 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate html5ever_macros 0.2.7 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate html5ever_macros 0.2.7 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 html5ever_macros 0.2.7
[INFO] finished tweaking crates.io crate html5ever_macros 0.2.7
[INFO] tweaked toml for crates.io crate html5ever_macros 0.2.7 written to /workspace/builds/worker-0/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] d5a292e41ec68d226854a0921a0f8c30d818100183de344ead72599d62f5be00
[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" "d5a292e41ec68d226854a0921a0f8c30d818100183de344ead72599d62f5be00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5a292e41ec68d226854a0921a0f8c30d818100183de344ead72599d62f5be00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5a292e41ec68d226854a0921a0f8c30d818100183de344ead72599d62f5be00", kill_on_drop: false }`
[INFO] [stdout] d5a292e41ec68d226854a0921a0f8c30d818100183de344ead72599d62f5be00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 435da01e3ba3a40e8e1841f0e56e9e48c30d6511a169e57a1a1ffdf90f77385f
[INFO] running `Command { std: "docker" "start" "-a" "435da01e3ba3a40e8e1841f0e56e9e48c30d6511a169e57a1a1ffdf90f77385f", kill_on_drop: false }`
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]  Documenting html5ever_macros v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(quote, rustc_private)]
[INFO] [stdout]    |            ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `html5ever_macros`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type dylib --crate-name html5ever_macros 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 mac=/opt/rustwide/target/debug/deps/libmac-ea89c51057a472f0.rmeta --cap-lints=warn --crate-version 0.2.7` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "435da01e3ba3a40e8e1841f0e56e9e48c30d6511a169e57a1a1ffdf90f77385f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "435da01e3ba3a40e8e1841f0e56e9e48c30d6511a169e57a1a1ffdf90f77385f", kill_on_drop: false }`
[INFO] [stdout] 435da01e3ba3a40e8e1841f0e56e9e48c30d6511a169e57a1a1ffdf90f77385f