[INFO] cloning repository https://github.com/Ameobea/nphysics-collision-issue-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ameobea/nphysics-collision-issue-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmeobea%2Fnphysics-collision-issue-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmeobea%2Fnphysics-collision-issue-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8acfb429447cdd6f3d0cb5ff865439affbe6707
[INFO] testing Ameobea/nphysics-collision-issue-demo against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmeobea%2Fnphysics-collision-issue-demo" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ameobea/nphysics-collision-issue-demo on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ameobea/nphysics-collision-issue-demo
[INFO] finished tweaking git repo https://github.com/Ameobea/nphysics-collision-issue-demo
[INFO] tweaked toml for git repo https://github.com/Ameobea/nphysics-collision-issue-demo written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Ameobea/nphysics-collision-issue-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded approx v0.3.0
[INFO] [stderr]   Downloaded nalgebra v0.16.0
[INFO] [stderr]   Downloaded smallvec v0.6.4
[INFO] [stderr]   Downloaded downcast v0.9.2
[INFO] [stderr]   Downloaded ncollide3d v0.17.1
[INFO] [stderr]   Downloaded ryu v0.2.4
[INFO] [stderr]   Downloaded nphysics_testbed2d v0.1.0
[INFO] [stderr]   Downloaded alga v0.7.1
[INFO] [stderr]   Downloaded cc v1.0.19
[INFO] [stderr]   Downloaded rusttype v0.6.4
[INFO] [stderr]   Downloaded nphysics2d v0.9.1
[INFO] [stderr]   Downloaded kiss3d v0.16.1
[INFO] [stderr]   Downloaded ncollide2d v0.17.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", 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] 9ba44c54edaaed2f971f88554c0766ea7487afabdec6405c55e1a09b63970f6b
[INFO] running `Command { std: "docker" "start" "-a" "9ba44c54edaaed2f971f88554c0766ea7487afabdec6405c55e1a09b63970f6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ba44c54edaaed2f971f88554c0766ea7487afabdec6405c55e1a09b63970f6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ba44c54edaaed2f971f88554c0766ea7487afabdec6405c55e1a09b63970f6b", kill_on_drop: false }`
[INFO] [stdout] 9ba44c54edaaed2f971f88554c0766ea7487afabdec6405c55e1a09b63970f6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTFLAGS=--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" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5797777e7b319b56096a1e469bd0b5f7d4249c34c053518745de793c690a34e
[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" "b5797777e7b319b56096a1e469bd0b5f7d4249c34c053518745de793c690a34e", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling cc v1.0.19
[INFO] [stderr]    Compiling byteorder v1.2.4
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling downcast-rs v1.0.3
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling matrixmultiply v0.1.14
[INFO] [stderr]    Compiling libm v0.1.2
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling pkg-config v0.3.13
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling slab v0.4.1
[INFO] [stderr]    Compiling downcast v0.9.2
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling memmap v0.6.2
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling xml-rs v0.7.0
[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" "b5797777e7b319b56096a1e469bd0b5f7d4249c34c053518745de793c690a34e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5797777e7b319b56096a1e469bd0b5f7d4249c34c053518745de793c690a34e", kill_on_drop: false }`
[INFO] [stdout] b5797777e7b319b56096a1e469bd0b5f7d4249c34c053518745de793c690a34e
