[INFO] fetching crate wlroots 0.4.0...
[INFO] documenting wlroots-0.4.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate wlroots 0.4.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate wlroots 0.4.0 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 wlroots 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate wlroots 0.4.0
[INFO] tweaked toml for crates.io crate wlroots 0.4.0 written to /workspace/builds/worker-12/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 wlroots-dehandle v2.0.0
[INFO] [stderr]   Downloaded vsprintf v1.0.3
[INFO] [stderr]   Downloaded wlroots-sys v0.4.0
[INFO] [stderr]   Downloaded xkbcommon v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] b3f8e451fa5385e39f6fb5d51c173991bf76efc7c950b1f17342941c6c85a69c
[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" "b3f8e451fa5385e39f6fb5d51c173991bf76efc7c950b1f17342941c6c85a69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3f8e451fa5385e39f6fb5d51c173991bf76efc7c950b1f17342941c6c85a69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3f8e451fa5385e39f6fb5d51c173991bf76efc7c950b1f17342941c6c85a69c", kill_on_drop: false }`
[INFO] [stdout] b3f8e451fa5385e39f6fb5d51c173991bf76efc7c950b1f17342941c6c85a69c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] 0c83f63c6114791d17a3db3e604571140061eef088a47b517eba46b5c2a6825d
[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" "0c83f63c6114791d17a3db3e604571140061eef088a47b517eba46b5c2a6825d", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling clang-sys v0.19.0
[INFO] [stderr]    Compiling vsprintf v1.0.3
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking xkbcommon v0.3.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling wayland-server v0.21.13
[INFO] [stderr]    Compiling syntex_syntax v0.58.1
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking wayland-commons v0.21.13
[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-0.58.1/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 mio-extras v2.0.6
[INFO] [stderr]     Checking calloop v0.4.4
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0c83f63c6114791d17a3db3e604571140061eef088a47b517eba46b5c2a6825d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c83f63c6114791d17a3db3e604571140061eef088a47b517eba46b5c2a6825d", kill_on_drop: false }`
[INFO] [stdout] 0c83f63c6114791d17a3db3e604571140061eef088a47b517eba46b5c2a6825d