[INFO] updating cached repository huxs/rust-raytracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/huxs/rust-raytracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/huxs/rust-raytracer" "work/ex/beta-1.38-1/sources/1.37.0/gh/huxs/rust-raytracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/huxs/rust-raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/huxs/rust-raytracer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/huxs/rust-raytracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/huxs/rust-raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 26bcbc85407f10b013a216178a9c7f65a03d2d77
[INFO] sha for GitHub repo huxs/rust-raytracer: 26bcbc85407f10b013a216178a9c7f65a03d2d77
[INFO] validating manifest of huxs/rust-raytracer 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 huxs/rust-raytracer 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 huxs/rust-raytracer
[INFO] finished frobbing huxs/rust-raytracer
[INFO] frobbed toml for huxs/rust-raytracer written to work/ex/beta-1.38-1/sources/1.37.0/gh/huxs/rust-raytracer/Cargo.toml
[INFO] started frobbing huxs/rust-raytracer
[INFO] finished frobbing huxs/rust-raytracer
[INFO] frobbed toml for huxs/rust-raytracer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/huxs/rust-raytracer/Cargo.toml
[INFO] crate huxs/rust-raytracer 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 huxs/rust-raytracer 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/huxs/rust-raytracer:/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] 9edcca9275cdfedef8b869112e3bf309a5a56c63c629aab529e99b7428f31546
[INFO] running `"docker" "start" "-a" "9edcca9275cdfedef8b869112e3bf309a5a56c63c629aab529e99b7428f31546"`
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling raytracer 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(duration_as_u128)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hitable.rs:10:23
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub material: &'a Material
[INFO] [stderr]    |                       ^^^^^^^^ help: use `dyn`: `dyn Material`
[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/hitable.rs:14:67
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(_t: f32, _pos: Vec3, _normal: Vec3, _material: &'a Material) -> HitRecord {
[INFO] [stderr]    |                                                                   ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hitable.rs:24:28
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub hitables : Vec<Box<Hitable + 'a>>
[INFO] [stderr]    |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn Hitable + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sphere.rs:12:23
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub material: Box<Material + 'a>
[INFO] [stderr]    |                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn Material + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sphere.rs:16:60
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new(_center: Vec3, _radius: f32, _material: Box<Material + 'a>) -> Sphere {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^ help: use `dyn`: `dyn Material + 'a`
[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 `raytracer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9edcca9275cdfedef8b869112e3bf309a5a56c63c629aab529e99b7428f31546"`
[INFO] running `"docker" "rm" "-f" "9edcca9275cdfedef8b869112e3bf309a5a56c63c629aab529e99b7428f31546"`
[INFO] [stdout] 9edcca9275cdfedef8b869112e3bf309a5a56c63c629aab529e99b7428f31546