[INFO] updating cached repository ratschance/rs-ray-tracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ratschance/rs-ray-tracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ratschance/rs-ray-tracer" "work/ex/beta-1.37-6/sources/1.36.0/gh/ratschance/rs-ray-tracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ratschance/rs-ray-tracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ratschance/rs-ray-tracer" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ratschance/rs-ray-tracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ratschance/rs-ray-tracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 973909d25eecd2a1140d585ce078b4839746a7f6
[INFO] sha for GitHub repo ratschance/rs-ray-tracer: 973909d25eecd2a1140d585ce078b4839746a7f6
[INFO] validating manifest of ratschance/rs-ray-tracer on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ratschance/rs-ray-tracer on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ratschance/rs-ray-tracer
[INFO] finished frobbing ratschance/rs-ray-tracer
[INFO] frobbed toml for ratschance/rs-ray-tracer written to work/ex/beta-1.37-6/sources/1.36.0/gh/ratschance/rs-ray-tracer/Cargo.toml
[INFO] started frobbing ratschance/rs-ray-tracer
[INFO] finished frobbing ratschance/rs-ray-tracer
[INFO] frobbed toml for ratschance/rs-ray-tracer written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ratschance/rs-ray-tracer/Cargo.toml
[INFO] crate ratschance/rs-ray-tracer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ratschance/rs-ray-tracer against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ratschance/rs-ray-tracer:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 7f63b8f84171843807cbc34e9609e3441891353ee0b8843cf7f7bb9bc4a30098
[INFO] running `"docker" "start" "-a" "7f63b8f84171843807cbc34e9609e3441891353ee0b8843cf7f7bb9bc4a30098"`
[INFO] [stderr]    Compiling rs-ray-tracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/material.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |             let mut outward_normal: Vec3;
[INFO] [stderr]    |                 ----^^^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/material.rs:19:17
[INFO] [stderr]    |
[INFO] [stderr] 19 |             let mut ni_over_nt: f64;
[INFO] [stderr]    |                 ----^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/material.rs:21:17
[INFO] [stderr]    |
[INFO] [stderr] 21 |             let mut cosine: f64;
[INFO] [stderr]    |                 ----^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "7f63b8f84171843807cbc34e9609e3441891353ee0b8843cf7f7bb9bc4a30098"`
[INFO] running `"docker" "rm" "-f" "7f63b8f84171843807cbc34e9609e3441891353ee0b8843cf7f7bb9bc4a30098"`
[INFO] [stdout] 7f63b8f84171843807cbc34e9609e3441891353ee0b8843cf7f7bb9bc4a30098
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ratschance/rs-ray-tracer:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7e29b0ccec1c13db5ee6d275d7e515ce0c927575b3a26e33146b4531bb1aa86e
[INFO] running `"docker" "start" "-a" "7e29b0ccec1c13db5ee6d275d7e515ce0c927575b3a26e33146b4531bb1aa86e"`
[INFO] [stderr]    Compiling rs-ray-tracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/material.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |             let mut outward_normal: Vec3;
[INFO] [stderr]    |                 ----^^^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/material.rs:19:17
[INFO] [stderr]    |
[INFO] [stderr] 19 |             let mut ni_over_nt: f64;
[INFO] [stderr]    |                 ----^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/material.rs:21:17
[INFO] [stderr]    |
[INFO] [stderr] 21 |             let mut cosine: f64;
[INFO] [stderr]    |                 ----^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "7e29b0ccec1c13db5ee6d275d7e515ce0c927575b3a26e33146b4531bb1aa86e"`
[INFO] running `"docker" "rm" "-f" "7e29b0ccec1c13db5ee6d275d7e515ce0c927575b3a26e33146b4531bb1aa86e"`
[INFO] [stdout] 7e29b0ccec1c13db5ee6d275d7e515ce0c927575b3a26e33146b4531bb1aa86e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ratschance/rs-ray-tracer:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 18aee047683fbd56272f67c0c779a062e12dd54fe6d997957a3c40b150f589da
[INFO] running `"docker" "start" "-a" "18aee047683fbd56272f67c0c779a062e12dd54fe6d997957a3c40b150f589da"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rs_ray_tracer-54ef49a72dcc430d
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "18aee047683fbd56272f67c0c779a062e12dd54fe6d997957a3c40b150f589da"`
[INFO] running `"docker" "rm" "-f" "18aee047683fbd56272f67c0c779a062e12dd54fe6d997957a3c40b150f589da"`
[INFO] [stdout] 18aee047683fbd56272f67c0c779a062e12dd54fe6d997957a3c40b150f589da