[INFO] updating cached repository Woyten/raytracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Woyten/raytracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Woyten/raytracer" "work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/Woyten/raytracer"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/Woyten/raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Woyten/raytracer" "work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/Woyten/raytracer"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/Woyten/raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1b690b39284fe9b5bc451aee77d3883d19a90b6d
[INFO] sha for GitHub repo Woyten/raytracer: 1b690b39284fe9b5bc451aee77d3883d19a90b6d
[INFO] validating manifest of Woyten/raytracer on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Woyten/raytracer on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Woyten/raytracer
[INFO] finished frobbing Woyten/raytracer
[INFO] frobbed toml for Woyten/raytracer written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/Woyten/raytracer/Cargo.toml
[INFO] started frobbing Woyten/raytracer
[INFO] finished frobbing Woyten/raytracer
[INFO] frobbed toml for Woyten/raytracer written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/Woyten/raytracer/Cargo.toml
[INFO] crate Woyten/raytracer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Woyten/raytracer against master#1891bfa80364eead426517c68de6947b7692e2de for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-4/master#1891bfa80364eead426517c68de6947b7692e2de:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/Woyten/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=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" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d05a6967a97fe85c51a1e270e22e0f7ab472be83ecde3c881cc7fdfcde914412
[INFO] running `"docker" "start" "-a" "d05a6967a97fe85c51a1e270e22e0f7ab472be83ecde3c881cc7fdfcde914412"`
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling derivative v1.0.1
[INFO] [stderr]     Checking nalgebra v0.16.8
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking gfx_core v0.8.3
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking pistoncore-input v0.21.0
[INFO] [stderr]     Checking pistoncore-window v0.32.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.37.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.48.0
[INFO] [stderr]     Checking piston v0.37.0
[INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.16.8/src/base/cg.rs:291:44
[INFO] [stderr]     |
[INFO] [stderr] 291 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[INFO] [stderr]     |                 ---------------------------^^^^-------------------
[INFO] [stderr]     |                 |                          |
[INFO] [stderr]     |                 |                          immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr] 
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.3
[INFO] [stderr]     Checking piston-gfx_texture v0.34.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.52.0
[INFO] [stderr]     Checking piston_window v0.82.0
[INFO] [stderr]     Checking raytracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 47s
[INFO] running `"docker" "inspect" "d05a6967a97fe85c51a1e270e22e0f7ab472be83ecde3c881cc7fdfcde914412"`
[INFO] running `"docker" "rm" "-f" "d05a6967a97fe85c51a1e270e22e0f7ab472be83ecde3c881cc7fdfcde914412"`
[INFO] [stdout] d05a6967a97fe85c51a1e270e22e0f7ab472be83ecde3c881cc7fdfcde914412