[INFO] updating cached repository https://github.com/sezna/gravitational-kd-tree
[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] [stderr] From https://github.com/sezna/gravitational-kd-tree
[INFO] [stderr]    46f2237..7f07bc1  collisions -> collisions
[INFO] [stderr]    598c318..fbf5a76  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fbf5a765cd23c92587fe59f30441d7da86f28c2d
[INFO] testing sezna/gravitational-kd-tree against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsezna%2Fgravitational-kd-tree" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sezna/gravitational-kd-tree 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/sezna/gravitational-kd-tree
[INFO] finished tweaking git repo https://github.com/sezna/gravitational-kd-tree
[INFO] tweaked toml for git repo https://github.com/sezna/gravitational-kd-tree written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/sezna/gravitational-kd-tree 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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] a20687c6c8b703a254d0ecdba9efd15d0dc4656a7106fecb5fda8dd1b0b87b99
[INFO] running `"docker" "start" "-a" "a20687c6c8b703a254d0ecdba9efd15d0dc4656a7106fecb5fda8dd1b0b87b99"`
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]    Compiling rayon v1.2.0
[INFO] [stderr]    Compiling bigbang v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[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 E0554`.
[INFO] [stderr] error: could not compile `bigbang`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a20687c6c8b703a254d0ecdba9efd15d0dc4656a7106fecb5fda8dd1b0b87b99"`
[INFO] running `"docker" "rm" "-f" "a20687c6c8b703a254d0ecdba9efd15d0dc4656a7106fecb5fda8dd1b0b87b99"`
[INFO] [stdout] a20687c6c8b703a254d0ecdba9efd15d0dc4656a7106fecb5fda8dd1b0b87b99