[INFO] cloning repository samstokes/seesaw-game
[INFO] running `"git" "clone" "--bare" "git://github.com/samstokes/seesaw-game.git" "work/cache/sources/gh/samstokes/seesaw-game"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/samstokes/seesaw-game'...
[INFO] running `"git" "clone" "work/cache/sources/gh/samstokes/seesaw-game" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/samstokes/seesaw-game"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/samstokes/seesaw-game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/samstokes/seesaw-game" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/samstokes/seesaw-game"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/samstokes/seesaw-game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 22489b99c7ff32c50b4d48fffb93b0ee6ee4e422
[INFO] sha for GitHub repo samstokes/seesaw-game: 22489b99c7ff32c50b4d48fffb93b0ee6ee4e422
[INFO] validating manifest of samstokes/seesaw-game on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of samstokes/seesaw-game on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing samstokes/seesaw-game
[INFO] finished frobbing samstokes/seesaw-game
[INFO] frobbed toml for samstokes/seesaw-game written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/samstokes/seesaw-game/Cargo.toml
[INFO] started frobbing samstokes/seesaw-game
[INFO] finished frobbing samstokes/seesaw-game
[INFO] frobbed toml for samstokes/seesaw-game written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/samstokes/seesaw-game/Cargo.toml
[INFO] crate samstokes/seesaw-game already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nphysics2d v0.9.2
[INFO] [stderr]   Downloaded piston2d-opengl_graphics v0.54.0
[INFO] [stderr]   Downloaded nalgebra v0.16.6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] testing samstokes/seesaw-game against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/samstokes/seesaw-game:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] c07a5dc4370d5dfe5a20af394ea333122937a3fff0d3ff9fb4b9af454adb70f3
[INFO] running `"docker" "start" "-a" "c07a5dc4370d5dfe5a20af394ea333122937a3fff0d3ff9fb4b9af454adb70f3"`
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling downcast v0.9.2
[INFO] [stderr]    Compiling memmap v0.6.2
[INFO] [stderr]    Compiling approx v0.3.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling syn v0.15.15
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]    --> /opt/crater/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/crater/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" "c07a5dc4370d5dfe5a20af394ea333122937a3fff0d3ff9fb4b9af454adb70f3"`
[INFO] running `"docker" "rm" "-f" "c07a5dc4370d5dfe5a20af394ea333122937a3fff0d3ff9fb4b9af454adb70f3"`
[INFO] [stdout] c07a5dc4370d5dfe5a20af394ea333122937a3fff0d3ff9fb4b9af454adb70f3