[INFO] cloning repository https://github.com/thiolliere/airjump-multi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thiolliere/airjump-multi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthiolliere%2Fairjump-multi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthiolliere%2Fairjump-multi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f716d3a755b6c5767d894a2a41c3c2ca96c1f2ef
[INFO] documenting thiolliere/airjump-multi against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthiolliere%2Fairjump-multi" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thiolliere/airjump-multi on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thiolliere/airjump-multi
[INFO] finished tweaking git repo https://github.com/thiolliere/airjump-multi
[INFO] tweaked toml for git repo https://github.com/thiolliere/airjump-multi written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/thiolliere/airjump-multi already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef64cc59cfbcc7fb20cb68dca045ee36ebc4fa508c9152a6f17b2c2dde53b486
[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" "ef64cc59cfbcc7fb20cb68dca045ee36ebc4fa508c9152a6f17b2c2dde53b486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef64cc59cfbcc7fb20cb68dca045ee36ebc4fa508c9152a6f17b2c2dde53b486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef64cc59cfbcc7fb20cb68dca045ee36ebc4fa508c9152a6f17b2c2dde53b486", kill_on_drop: false }`
[INFO] [stdout] ef64cc59cfbcc7fb20cb68dca045ee36ebc4fa508c9152a6f17b2c2dde53b486
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.47.0" "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] cfa6cb0dd55ca533b4b924efcc5c8372b953badb2b35a29dc5738364ea43675f
[INFO] running `Command { std: "docker" "start" "-a" "cfa6cb0dd55ca533b4b924efcc5c8372b953badb2b35a29dc5738364ea43675f", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking cfg-if v0.1.4
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]     Checking smallvec v0.6.2
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling arrayref v0.3.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking token_store v0.1.2
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling matrixmultiply v0.1.14
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.0
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]    Compiling vulkano v0.9.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking vk-sys v0.3.3
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking half v1.1.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking downcast v0.9.2
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking tuple_utils v0.2.0
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/downcast-0.9.2/src/lib.rs:120:38
[INFO] [stdout]     |
[INFO] [stdout] 120 |     fn is_type(&self) -> bool { self.type_id() == TypeId::of::<T>() }
[INFO] [stdout]     |                                      ^^^^^^^ multiple `type_id` found
[INFO] [stdout]     |
[INFO] [stdout] note: candidate #1 is defined in the trait `Any`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/downcast-0.9.2/src/lib.rs:29:5
[INFO] [stdout]     |
[INFO] [stdout] 29  |     fn type_id(&self) -> TypeId { TypeId::of::<Self>() }
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: candidate #2 is defined in the trait `std::any::Any`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 120 |     fn is_type(&self) -> bool { Any::type_id(&self) == TypeId::of::<T>() }
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 120 |     fn is_type(&self) -> bool { std::any::Any::type_id(&self) == TypeId::of::<T>() }
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `downcast`.
[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" "cfa6cb0dd55ca533b4b924efcc5c8372b953badb2b35a29dc5738364ea43675f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfa6cb0dd55ca533b4b924efcc5c8372b953badb2b35a29dc5738364ea43675f", kill_on_drop: false }`
[INFO] [stdout] cfa6cb0dd55ca533b4b924efcc5c8372b953badb2b35a29dc5738364ea43675f
