[INFO] fetching crate alexa 0.1.2...
[INFO] documenting alexa-0.1.2 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate alexa 0.1.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate alexa 0.1.2 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 alexa 0.1.2
[INFO] finished tweaking crates.io crate alexa 0.1.2
[INFO] tweaked toml for crates.io crate alexa 0.1.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 998b25b0936ea6048e8f2edd3a5a0b036574c5469892c8be4996218abf22d886
[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" "998b25b0936ea6048e8f2edd3a5a0b036574c5469892c8be4996218abf22d886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "998b25b0936ea6048e8f2edd3a5a0b036574c5469892c8be4996218abf22d886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "998b25b0936ea6048e8f2edd3a5a0b036574c5469892c8be4996218abf22d886", kill_on_drop: false }`
[INFO] [stdout] 998b25b0936ea6048e8f2edd3a5a0b036574c5469892c8be4996218abf22d886
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 5b31737841e9487179b46bd18eef4a3500e5b428962b4b51bcdf60fb96f51aa7
[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" "5b31737841e9487179b46bd18eef4a3500e5b428962b4b51bcdf60fb96f51aa7", kill_on_drop: false }`
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]    Compiling syntex_pos v0.54.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]    Compiling syntex_errors v0.54.0
[INFO] [stderr]     Checking iron v0.4.0
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking persistent v0.2.1
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]    Compiling syntex_syntax v0.54.0
[INFO] [stderr]    Compiling serde_codegen_internals v0.11.3
[INFO] [stdout] error[E0423]: expected function, tuple struct or tuple variant, found struct `ast::Name`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.54.0/src/symbol.rs:146:27
[INFO] [stdout]     |
[INFO] [stdout] 146 |                       name: ast::Name($index),
[INFO] [stdout]     |                             ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 | / declare_keywords! {
[INFO] [stdout] 166 | |     // Invalid identifier
[INFO] [stdout] 167 | |     (0,  Invalid,        "")
[INFO] [stdout] 168 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 231 | |     (56, CrateRoot, "{{root}}")
[INFO] [stdout] 232 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]     Checking bodyparser v0.4.1
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0423`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syntex_syntax`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "5b31737841e9487179b46bd18eef4a3500e5b428962b4b51bcdf60fb96f51aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b31737841e9487179b46bd18eef4a3500e5b428962b4b51bcdf60fb96f51aa7", kill_on_drop: false }`
[INFO] [stdout] 5b31737841e9487179b46bd18eef4a3500e5b428962b4b51bcdf60fb96f51aa7