[INFO] crate sandcastle 0.0.1 is already in cache
[INFO] extracting crate sandcastle 0.0.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/sandcastle/0.0.1
[INFO] extracting crate sandcastle 0.0.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/sandcastle/0.0.1
[INFO] validating manifest of sandcastle-0.0.1 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 sandcastle-0.0.1 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 sandcastle-0.0.1
[INFO] finished frobbing sandcastle-0.0.1
[INFO] frobbed toml for sandcastle-0.0.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/sandcastle/0.0.1/Cargo.toml
[INFO] started frobbing sandcastle-0.0.1
[INFO] finished frobbing sandcastle-0.0.1
[INFO] frobbed toml for sandcastle-0.0.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/sandcastle/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 sandcastle-0.0.1 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-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/sandcastle/0.0.1:/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] 5483f6a73dea4f56275ddbd29bd6d3858d2dbf280529d46450f6a598244794a9
[INFO] running `"docker" "start" "-a" "5483f6a73dea4f56275ddbd29bd6d3858d2dbf280529d46450f6a598244794a9"`
[INFO] [stderr]    Compiling euclid v0.17.3
[INFO] [stderr]    Compiling sandcastle v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Image`
[INFO] [stderr]  --> src/nodes/image.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Image<P: Pixel, C> {
[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/nodes/image.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn new(buffer: ImageBuffer<P, C>) -> Image<P, C> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `buffer`
[INFO] [stderr]   --> src/nodes/image.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn buffer(&self) -> &ImageBuffer<P, C> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Mask`
[INFO] [stderr]  --> src/nodes/mask.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Mask {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Transform`
[INFO] [stderr]  --> src/nodes/transform.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Transform<N: RenderNode> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/nodes/transform.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(child: N, transform: Transform3D<f64>) -> Transform<N> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `child`
[INFO] [stderr]   --> src/nodes/transform.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn child(&self) -> &RenderNode {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `transform`
[INFO] [stderr]   --> src/nodes/transform.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn transform(&self) -> &Transform3D<f64> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Shadow`
[INFO] [stderr]  --> src/nodes/shadow.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Shadow {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Gradient`
[INFO] [stderr]  --> src/nodes/gradient.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Gradient {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.22s
[INFO] running `"docker" "inspect" "5483f6a73dea4f56275ddbd29bd6d3858d2dbf280529d46450f6a598244794a9"`
[INFO] running `"docker" "rm" "-f" "5483f6a73dea4f56275ddbd29bd6d3858d2dbf280529d46450f6a598244794a9"`
[INFO] [stdout] 5483f6a73dea4f56275ddbd29bd6d3858d2dbf280529d46450f6a598244794a9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/sandcastle/0.0.1:/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] 3c3ff02a7dce20f213f78b5cd8da192249c31d957a962356f0e0ef62c114f51f
[INFO] running `"docker" "start" "-a" "3c3ff02a7dce20f213f78b5cd8da192249c31d957a962356f0e0ef62c114f51f"`
[INFO] [stderr]    Compiling sandcastle v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Image`
[INFO] [stderr]  --> src/nodes/image.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Image<P: Pixel, C> {
[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/nodes/image.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn new(buffer: ImageBuffer<P, C>) -> Image<P, C> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `buffer`
[INFO] [stderr]   --> src/nodes/image.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn buffer(&self) -> &ImageBuffer<P, C> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Mask`
[INFO] [stderr]  --> src/nodes/mask.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Mask {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Transform`
[INFO] [stderr]  --> src/nodes/transform.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Transform<N: RenderNode> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/nodes/transform.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(child: N, transform: Transform3D<f64>) -> Transform<N> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `child`
[INFO] [stderr]   --> src/nodes/transform.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn child(&self) -> &RenderNode {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `transform`
[INFO] [stderr]   --> src/nodes/transform.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn transform(&self) -> &Transform3D<f64> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Shadow`
[INFO] [stderr]  --> src/nodes/shadow.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Shadow {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Gradient`
[INFO] [stderr]  --> src/nodes/gradient.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Gradient {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "3c3ff02a7dce20f213f78b5cd8da192249c31d957a962356f0e0ef62c114f51f"`
[INFO] running `"docker" "rm" "-f" "3c3ff02a7dce20f213f78b5cd8da192249c31d957a962356f0e0ef62c114f51f"`
[INFO] [stdout] 3c3ff02a7dce20f213f78b5cd8da192249c31d957a962356f0e0ef62c114f51f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/sandcastle/0.0.1:/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] 45db1105e62b518b0c0017a7eaf1ef50c046fc0cef8474b9eeace4d6f2679d3e
[INFO] running `"docker" "start" "-a" "45db1105e62b518b0c0017a7eaf1ef50c046fc0cef8474b9eeace4d6f2679d3e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sandcastle-9365b680c0105f41
[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] [stderr]    Doc-tests sandcastle
[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" "45db1105e62b518b0c0017a7eaf1ef50c046fc0cef8474b9eeace4d6f2679d3e"`
[INFO] running `"docker" "rm" "-f" "45db1105e62b518b0c0017a7eaf1ef50c046fc0cef8474b9eeace4d6f2679d3e"`
[INFO] [stdout] 45db1105e62b518b0c0017a7eaf1ef50c046fc0cef8474b9eeace4d6f2679d3e