[INFO] updating cached repository quadfault/rt
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/quadfault/rt
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/quadfault/rt" "work/ex/beta-1.38-1/sources/1.37.0/gh/quadfault/rt"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/quadfault/rt'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/quadfault/rt" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/quadfault/rt"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/quadfault/rt'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e02ce526af0cd34464eb2571c79c5473453756c8
[INFO] sha for GitHub repo quadfault/rt: e02ce526af0cd34464eb2571c79c5473453756c8
[INFO] validating manifest of quadfault/rt on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of quadfault/rt on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing quadfault/rt
[INFO] finished frobbing quadfault/rt
[INFO] frobbed toml for quadfault/rt written to work/ex/beta-1.38-1/sources/1.37.0/gh/quadfault/rt/Cargo.toml
[INFO] started frobbing quadfault/rt
[INFO] finished frobbing quadfault/rt
[INFO] frobbed toml for quadfault/rt written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/quadfault/rt/Cargo.toml
[INFO] crate quadfault/rt already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing quadfault/rt against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/quadfault/rt:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 297c5dbbf26661cf1f391d5bd8cceae4ef4d66fbb1c7cd888eb543b60fd0b914
[INFO] running `"docker" "start" "-a" "297c5dbbf26661cf1f391d5bd8cceae4ef4d66fbb1c7cd888eb543b60fd0b914"`
[INFO] [stderr]    Compiling rt v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Dielectric`
[INFO] [stderr]   --> src/materials/dielectric.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct Dielectric {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/materials/dielectric.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(refractive_index: f64) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `origin`
[INFO] [stderr]   --> src/math/point.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn origin() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cross`
[INFO] [stderr]   --> src/math/vector.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn cross(self, rhs: Self) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Plane`
[INFO] [stderr]   --> src/models/plane.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Plane {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/models/plane.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | /     pub fn new(point_on_plane: Point,
[INFO] [stderr] 18 | |                normal: Vector,
[INFO] [stderr] 19 | |                material: Box<dyn Material>)
[INFO] [stderr] 20 | |         -> Self
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |         }
[INFO] [stderr] 27 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "297c5dbbf26661cf1f391d5bd8cceae4ef4d66fbb1c7cd888eb543b60fd0b914"`
[INFO] running `"docker" "rm" "-f" "297c5dbbf26661cf1f391d5bd8cceae4ef4d66fbb1c7cd888eb543b60fd0b914"`
[INFO] [stdout] 297c5dbbf26661cf1f391d5bd8cceae4ef4d66fbb1c7cd888eb543b60fd0b914
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/quadfault/rt:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3cdf1256f81fa48b5af0b11e144ae10cbc68f7e3739d9a8e6cf913b53b0e4b27
[INFO] running `"docker" "start" "-a" "3cdf1256f81fa48b5af0b11e144ae10cbc68f7e3739d9a8e6cf913b53b0e4b27"`
[INFO] [stderr]    Compiling rt v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Dielectric`
[INFO] [stderr]   --> src/materials/dielectric.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct Dielectric {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/materials/dielectric.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(refractive_index: f64) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `origin`
[INFO] [stderr]   --> src/math/point.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn origin() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cross`
[INFO] [stderr]   --> src/math/vector.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn cross(self, rhs: Self) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Plane`
[INFO] [stderr]   --> src/models/plane.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Plane {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/models/plane.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | /     pub fn new(point_on_plane: Point,
[INFO] [stderr] 18 | |                normal: Vector,
[INFO] [stderr] 19 | |                material: Box<dyn Material>)
[INFO] [stderr] 20 | |         -> Self
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |         }
[INFO] [stderr] 27 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "3cdf1256f81fa48b5af0b11e144ae10cbc68f7e3739d9a8e6cf913b53b0e4b27"`
[INFO] running `"docker" "rm" "-f" "3cdf1256f81fa48b5af0b11e144ae10cbc68f7e3739d9a8e6cf913b53b0e4b27"`
[INFO] [stdout] 3cdf1256f81fa48b5af0b11e144ae10cbc68f7e3739d9a8e6cf913b53b0e4b27
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/quadfault/rt:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] edaec4393d0cc5232a84ef94b490b459d0e1e28a95858ca90d6bd03d36099ef1
[INFO] running `"docker" "start" "-a" "edaec4393d0cc5232a84ef94b490b459d0e1e28a95858ca90d6bd03d36099ef1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rt-7249462d97a7be76
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test math::color::tests::black ... ok
[INFO] [stdout] test math::vector::tests::new ... ok
[INFO] [stdout] test math::vector::tests::zero ... ok
[INFO] [stdout] test math::ray::tests::new ... ok
[INFO] [stdout] test math::color::tests::new ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "edaec4393d0cc5232a84ef94b490b459d0e1e28a95858ca90d6bd03d36099ef1"`
[INFO] running `"docker" "rm" "-f" "edaec4393d0cc5232a84ef94b490b459d0e1e28a95858ca90d6bd03d36099ef1"`
[INFO] [stdout] edaec4393d0cc5232a84ef94b490b459d0e1e28a95858ca90d6bd03d36099ef1