[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-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/kylestach/rust-trace"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/kylestach/rust-trace'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kylestach/rust-trace" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/kylestach/rust-trace"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kylestach/rust-trace on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-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-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/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-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kylestach/rust-trace against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-6/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 20d3b10617ba5e8a413b5c87eeaa2920c29eae108d5e2481ab2a807b42589c17
[INFO] running `"docker" "start" "-a" "20d3b10617ba5e8a413b5c87eeaa2920c29eae108d5e2481ab2a807b42589c17"`
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking rayon v0.6.0
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking flate2 v0.2.14
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking enum_primitive v0.1.0
[INFO] [stderr]     Checking nalgebra v0.10.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.10
[INFO] [stderr]     Checking png v0.5.2
[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]   |
[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: 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] 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 23.40s
[INFO] running `"docker" "inspect" "20d3b10617ba5e8a413b5c87eeaa2920c29eae108d5e2481ab2a807b42589c17"`
[INFO] running `"docker" "rm" "-f" "20d3b10617ba5e8a413b5c87eeaa2920c29eae108d5e2481ab2a807b42589c17"`
[INFO] [stdout] 20d3b10617ba5e8a413b5c87eeaa2920c29eae108d5e2481ab2a807b42589c17