[INFO] updating cached repository kylestach/rust-trace
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kylestach/rust-trace
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kylestach/rust-trace" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/kylestach/rust-trace"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/kylestach/rust-trace'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kylestach/rust-trace" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/kylestach/rust-trace"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/kylestach/rust-trace'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5be1edd86d2183555c210a2a2b0f9c4ae7bf98dd
[INFO] sha for GitHub repo kylestach/rust-trace: 5be1edd86d2183555c210a2a2b0f9c4ae7bf98dd
[INFO] validating manifest of kylestach/rust-trace on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kylestach/rust-trace on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kylestach/rust-trace
[INFO] finished frobbing kylestach/rust-trace
[INFO] frobbed toml for kylestach/rust-trace written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/kylestach/rust-trace/Cargo.toml
[INFO] started frobbing kylestach/rust-trace
[INFO] finished frobbing kylestach/rust-trace
[INFO] frobbed toml for kylestach/rust-trace written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/kylestach/rust-trace/Cargo.toml
[INFO] crate kylestach/rust-trace already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kylestach/rust-trace against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-2/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/kylestach/rust-trace:/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2eb264543bac28d01f8d3c1088902475b1fc55fb2642cc123a8c652738980698
[INFO] running `"docker" "start" "-a" "2eb264543bac28d01f8d3c1088902475b1fc55fb2642cc123a8c652738980698"`
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]     Checking rayon v0.6.0
[INFO] [stderr]     Checking flate2 v0.2.14
[INFO] [stderr]     Checking png v0.5.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.10
[INFO] [stderr]     Checking image v0.10.4
[INFO] [stderr]     Checking raytracingv2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Div`
[INFO] [stderr]  --> src/raytracing/color.rs:2:31
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::{Add, Sub, Mul, Div};
[INFO] [stderr]   |                               ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Div`
[INFO] [stderr]  --> src/raytracing/color.rs:2:31
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::{Add, Sub, Mul, Div};
[INFO] [stderr]   |                               ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AmbientMaterial`
[INFO] [stderr]  --> src/raytracing/materials/ambient.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct AmbientMaterial {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] warning: struct is never constructed: `AmbientMaterial`
[INFO] [stderr]  --> src/raytracing/materials/ambient.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct AmbientMaterial {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/raytracing/render.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     image.save(Path::new("test.png"));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/raytracing/render.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     image.save(Path::new("test.png"));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.78s
[INFO] running `"docker" "inspect" "2eb264543bac28d01f8d3c1088902475b1fc55fb2642cc123a8c652738980698"`
[INFO] running `"docker" "rm" "-f" "2eb264543bac28d01f8d3c1088902475b1fc55fb2642cc123a8c652738980698"`
[INFO] [stdout] 2eb264543bac28d01f8d3c1088902475b1fc55fb2642cc123a8c652738980698