[INFO] cloning repository https://github.com/SifSif/viridian
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SifSif/viridian" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSifSif%2Fviridian"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSifSif%2Fviridian'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f4d106357f350ca0cb32b1937767dc91a6a66ed8
[INFO] checking SifSif/viridian against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSifSif%2Fviridian" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SifSif/viridian on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/SifSif/viridian
[INFO] finished tweaking git repo https://github.com/SifSif/viridian
[INFO] tweaked toml for git repo https://github.com/SifSif/viridian written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/SifSif/viridian already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 32b76ae8696eed4e4a50d1d1ac97c6dea986aa1ff881e59d02519712857e57a7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "32b76ae8696eed4e4a50d1d1ac97c6dea986aa1ff881e59d02519712857e57a7"`
[INFO] [stderr]    Compiling cc v1.0.20
[INFO] [stderr]    Compiling serde v1.0.73
[INFO] [stderr]    Compiling ryu v0.2.4
[INFO] [stderr]    Compiling regex v1.0.3
[INFO] [stderr]     Checking downcast v0.9.2
[INFO] [stderr]     Checking rust-stemmers v0.1.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking socket2 v0.3.7
[INFO] [stderr]    Compiling actix-web v0.7.4
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]     Checking base64 v0.9.2
[INFO] [stderr]     Checking combine v2.5.2
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking fst v0.3.0
[INFO] [stderr]     Checking tokio-io v0.1.8
[INFO] [stderr]     Checking tempfile v2.2.0
[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]     = help: to disambiguate the method call, write `Any::type_id(&self)` instead
[INFO] [stderr] note: candidate #2 is defined in the trait `std::any::Any`
[INFO] [stderr]     = help: to disambiguate the method call, write `std::any::Any::type_id(&self)` instead
[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] error: could not compile `downcast`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "32b76ae8696eed4e4a50d1d1ac97c6dea986aa1ff881e59d02519712857e57a7"`
[INFO] running `"docker" "rm" "-f" "32b76ae8696eed4e4a50d1d1ac97c6dea986aa1ff881e59d02519712857e57a7"`
[INFO] [stdout] 32b76ae8696eed4e4a50d1d1ac97c6dea986aa1ff881e59d02519712857e57a7