[INFO] updating cached repository https://github.com/andrew-pa/ununi
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] bf5c95a6c82346a714f5362e52601c41cc337e09
[INFO] testing andrew-pa/ununi against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-pa%2Fununi" "work/builds/worker-9/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrew-pa/ununi on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/andrew-pa/ununi
[INFO] finished tweaking git repo https://github.com/andrew-pa/ununi
[INFO] tweaked toml for git repo https://github.com/andrew-pa/ununi written to work/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/andrew-pa/ununi already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] dd07f8fe40ae4855a2031c902fd44badc25425977cfc1c59e7232008f0ebb7a4
[INFO] running `"docker" "start" "-a" "dd07f8fe40ae4855a2031c902fd44badc25425977cfc1c59e7232008f0ebb7a4"`
[INFO] [stderr]    Compiling getopts v0.2.17
[INFO] [stderr]    Compiling rustc-demangle v0.1.6
[INFO] [stderr]    Compiling stable_deref_trait v1.0.0
[INFO] [stderr]    Compiling ascii v0.7.1
[INFO] [stderr]    Compiling maplit v0.1.6
[INFO] [stderr]    Compiling ununi v0.4.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling downcast v0.9.2
[INFO] [stderr]    Compiling rust-stemmers v0.1.0
[INFO] [stderr]    Compiling lz4-sys v1.8.0
[INFO] [stderr]    Compiling openssl-sys v0.9.26
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.1.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.6
[INFO] [stderr]    Compiling curl-sys v0.4.1
[INFO] [stderr]    Compiling advapi32-sys v0.2.0
[INFO] [stderr]    Compiling user32-sys v0.1.3
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/downcast-0.9.2/src/lib.rs:2:34
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![cfg_attr(feature = "nightly", feature(core_intrinsics, try_from))]
[INFO] [stderr]   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0034, E0554.
[INFO] [stderr] For more information about an 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" "dd07f8fe40ae4855a2031c902fd44badc25425977cfc1c59e7232008f0ebb7a4"`
[INFO] running `"docker" "rm" "-f" "dd07f8fe40ae4855a2031c902fd44badc25425977cfc1c59e7232008f0ebb7a4"`
[INFO] [stdout] dd07f8fe40ae4855a2031c902fd44badc25425977cfc1c59e7232008f0ebb7a4