[INFO] updating cached repository hamaluik/tinyraytracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hamaluik/tinyraytracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hamaluik/tinyraytracer" "work/ex/beta-1.38-1/sources/1.37.0/gh/hamaluik/tinyraytracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hamaluik/tinyraytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hamaluik/tinyraytracer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hamaluik/tinyraytracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hamaluik/tinyraytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 78764df74399327068e796d6ea2d70a5d5e1e2b4
[INFO] sha for GitHub repo hamaluik/tinyraytracer: 78764df74399327068e796d6ea2d70a5d5e1e2b4
[INFO] validating manifest of hamaluik/tinyraytracer on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hamaluik/tinyraytracer on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hamaluik/tinyraytracer
[INFO] finished frobbing hamaluik/tinyraytracer
[INFO] frobbed toml for hamaluik/tinyraytracer written to work/ex/beta-1.38-1/sources/1.37.0/gh/hamaluik/tinyraytracer/Cargo.toml
[INFO] started frobbing hamaluik/tinyraytracer
[INFO] finished frobbing hamaluik/tinyraytracer
[INFO] frobbed toml for hamaluik/tinyraytracer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hamaluik/tinyraytracer/Cargo.toml
[INFO] crate hamaluik/tinyraytracer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing hamaluik/tinyraytracer against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hamaluik/tinyraytracer:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 15f7ce80da0005440c1f1f0bd0f2d79bcb3ac71bcc6b617c740908bc0ef5afb8
[INFO] running `"docker" "start" "-a" "15f7ce80da0005440c1f1f0bd0f2d79bcb3ac71bcc6b617c740908bc0ef5afb8"`
[INFO] [stderr]    Compiling tinyraytracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:50:77
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn scene_intersect<'a>(origin: &Vec3f, direction: &Vec3f, objects: &Vec<&'a Intersectable>) -> Option<(Intersection, &'a Material)> {
[INFO] [stderr]    |                                                                             ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:69:73
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn cast_ray<'a>(origin: &Vec3f, direction: &Vec3f, objects: &'a Vec<&'a Intersectable>, lights: &Vec<Light>, bounces: isize) -> Option<Vec3f> {
[INFO] [stderr]    |                                                                         ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:165:56
[INFO] [stderr]     |
[INFO] [stderr] 165 |             let objects = objects.iter().map(|o| o as &Intersectable).collect();
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[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 `tinyraytracer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "15f7ce80da0005440c1f1f0bd0f2d79bcb3ac71bcc6b617c740908bc0ef5afb8"`
[INFO] running `"docker" "rm" "-f" "15f7ce80da0005440c1f1f0bd0f2d79bcb3ac71bcc6b617c740908bc0ef5afb8"`
[INFO] [stdout] 15f7ce80da0005440c1f1f0bd0f2d79bcb3ac71bcc6b617c740908bc0ef5afb8