[INFO] cloning repository siddharm/rust-raytracer
[INFO] running `"git" "clone" "--bare" "git://github.com/siddharm/rust-raytracer.git" "work/cache/sources/gh/siddharm/rust-raytracer"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/siddharm/rust-raytracer'...
[INFO] running `"git" "clone" "work/cache/sources/gh/siddharm/rust-raytracer" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/siddharm/rust-raytracer"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/siddharm/rust-raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/siddharm/rust-raytracer" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/siddharm/rust-raytracer"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/siddharm/rust-raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c2305c16fa3eb80cb42b37d9fe578838bcdf4c7d
[INFO] sha for GitHub repo siddharm/rust-raytracer: c2305c16fa3eb80cb42b37d9fe578838bcdf4c7d
[INFO] validating manifest of siddharm/rust-raytracer on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of siddharm/rust-raytracer on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing siddharm/rust-raytracer
[INFO] finished frobbing siddharm/rust-raytracer
[INFO] frobbed toml for siddharm/rust-raytracer written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/siddharm/rust-raytracer/Cargo.toml
[INFO] started frobbing siddharm/rust-raytracer
[INFO] finished frobbing siddharm/rust-raytracer
[INFO] frobbed toml for siddharm/rust-raytracer written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/siddharm/rust-raytracer/Cargo.toml
[INFO] crate siddharm/rust-raytracer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking siddharm/rust-raytracer against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/siddharm/rust-raytracer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8fff282df81bef5804ff2dec6f6d84623bdfb0c4a69eb3778dc69adf0943d1ad
[INFO] running `"docker" "start" "-a" "8fff282df81bef5804ff2dec6f6d84623bdfb0c4a69eb3778dc69adf0943d1ad"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking num-rational v0.2.1
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking cgmath v0.17.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]     Checking raytracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/shapes.rs:100:18
[INFO] [stderr]     |
[INFO] [stderr] 100 |             Some(a) => 0.0
[INFO] [stderr]     |                  ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/shapes.rs:156:18
[INFO] [stderr]     |
[INFO] [stderr] 156 |             Some(a) => 0.0
[INFO] [stderr]     |                  ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/shapes.rs:100:18
[INFO] [stderr]     |
[INFO] [stderr] 100 |             Some(a) => 0.0
[INFO] [stderr]     |                  ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/shapes.rs:156:18
[INFO] [stderr]     |
[INFO] [stderr] 156 |             Some(a) => 0.0
[INFO] [stderr]     |                  ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.66s
[INFO] running `"docker" "inspect" "8fff282df81bef5804ff2dec6f6d84623bdfb0c4a69eb3778dc69adf0943d1ad"`
[INFO] running `"docker" "rm" "-f" "8fff282df81bef5804ff2dec6f6d84623bdfb0c4a69eb3778dc69adf0943d1ad"`
[INFO] [stdout] 8fff282df81bef5804ff2dec6f6d84623bdfb0c4a69eb3778dc69adf0943d1ad