[INFO] updating cached repository https://github.com/WimbledonLabs/rust-search-engine-example
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cee5bf28c20f4432743f8cff23764a9a04a6f433
[INFO] checking WimbledonLabs/rust-search-engine-example against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWimbledonLabs%2Frust-search-engine-example" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WimbledonLabs/rust-search-engine-example on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/WimbledonLabs/rust-search-engine-example
[INFO] finished tweaking git repo https://github.com/WimbledonLabs/rust-search-engine-example
[INFO] tweaked toml for git repo https://github.com/WimbledonLabs/rust-search-engine-example written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/WimbledonLabs/rust-search-engine-example already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fd304c85fb594387abfdd6b07649a5cbfae0bd1f87452395ba0c02e6fdf43d67
[INFO] running `"docker" "start" "-a" "fd304c85fb594387abfdd6b07649a5cbfae0bd1f87452395ba0c02e6fdf43d67"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling yansi v0.4.0
[INFO] [stderr]     Checking matches v0.1.7
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.11
[INFO] [stderr]    Compiling byteorder v1.2.4
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.11
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]     Checking futures v0.1.23
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking ascii v0.7.1
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]    Compiling pear v0.0.19
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking census v0.1.1
[INFO] [stderr]     Checking rust-stemmers v0.1.0
[INFO] [stderr]     Checking ascii v0.9.0
[INFO] [stderr]     Checking downcast v0.9.2
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/downcast-0.9.2/src/lib.rs:120:38
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn is_type(&self) -> bool { self.type_id() == TypeId::of::<T>() }
[INFO] [stderr]     |                                      ^^^^^^^ multiple `type_id` found
[INFO] [stderr]     |
[INFO] [stderr] note: candidate #1 is defined in the trait `Any`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/downcast-0.9.2/src/lib.rs:29:5
[INFO] [stderr]     |
[INFO] [stderr] 29  |     fn type_id(&self) -> TypeId { TypeId::of::<Self>() }
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] note: candidate #2 is defined in the trait `std::any::Any`
[INFO] [stderr] help: disambiguate the associated function for candidate #1
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn is_type(&self) -> bool { Any::type_id(&self) == TypeId::of::<T>() }
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: disambiguate the associated function for candidate #2
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn is_type(&self) -> bool { std::any::Any::type_id(&self) == TypeId::of::<T>() }
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0034`.
[INFO] [stderr]     Checking memmap v0.6.2
[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 `"docker" "inspect" "fd304c85fb594387abfdd6b07649a5cbfae0bd1f87452395ba0c02e6fdf43d67"`
[INFO] running `"docker" "rm" "-f" "fd304c85fb594387abfdd6b07649a5cbfae0bd1f87452395ba0c02e6fdf43d67"`
[INFO] [stdout] fd304c85fb594387abfdd6b07649a5cbfae0bd1f87452395ba0c02e6fdf43d67