[INFO] crate img 0.1.0 is already in cache
[INFO] extracting crate img 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/img/0.1.0
[INFO] extracting crate img 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/img/0.1.0
[INFO] validating manifest of img-0.1.0 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 img-0.1.0 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 img-0.1.0
[INFO] finished frobbing img-0.1.0
[INFO] frobbed toml for img-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/img/0.1.0/Cargo.toml
[INFO] started frobbing img-0.1.0
[INFO] finished frobbing img-0.1.0
[INFO] frobbed toml for img-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/img/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 img-0.1.0 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/img/0.1.0:/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] b88cada09ef334f299a7f9b7ae3d3edd4cc920f058daff7d89ff6d02ce9df948
[INFO] running `"docker" "start" "-a" "b88cada09ef334f299a7f9b7ae3d3edd4cc920f058daff7d89ff6d02ce9df948"`
[INFO] [stderr]    Compiling img v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: where clauses are not enforced in type aliases
[INFO] [stderr]   --> src/image/impl_buffer.rs:18:39
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub type ImageBufferVal<PixelP> where PixelP: Pixel = ImageVal<ImageBuffer<PixelP>>;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(type_alias_bounds)] on by default
[INFO] [stderr]    = help: the clause will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "b88cada09ef334f299a7f9b7ae3d3edd4cc920f058daff7d89ff6d02ce9df948"`
[INFO] running `"docker" "rm" "-f" "b88cada09ef334f299a7f9b7ae3d3edd4cc920f058daff7d89ff6d02ce9df948"`
[INFO] [stdout] b88cada09ef334f299a7f9b7ae3d3edd4cc920f058daff7d89ff6d02ce9df948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/img/0.1.0:/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] 7f91271ccd3fc1b4f846da00bcb70020414b394907b289dd56642e2bce51d156
[INFO] running `"docker" "start" "-a" "7f91271ccd3fc1b4f846da00bcb70020414b394907b289dd56642e2bce51d156"`
[INFO] [stderr]    Compiling img v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]   --> src/scalar/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     a + b;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]   --> src/scalar/mod.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     a == b;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: where clauses are not enforced in type aliases
[INFO] [stderr]   --> src/image/impl_buffer.rs:18:39
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub type ImageBufferVal<PixelP> where PixelP: Pixel = ImageVal<ImageBuffer<PixelP>>;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(type_alias_bounds)] on by default
[INFO] [stderr]    = help: the clause will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `"docker" "inspect" "7f91271ccd3fc1b4f846da00bcb70020414b394907b289dd56642e2bce51d156"`
[INFO] running `"docker" "rm" "-f" "7f91271ccd3fc1b4f846da00bcb70020414b394907b289dd56642e2bce51d156"`
[INFO] [stdout] 7f91271ccd3fc1b4f846da00bcb70020414b394907b289dd56642e2bce51d156
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/img/0.1.0:/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] 0d74052833979547236edf6b442f25a10dd459d1444d30a8eea07e13d738528b
[INFO] running `"docker" "start" "-a" "0d74052833979547236edf6b442f25a10dd459d1444d30a8eea07e13d738528b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/img-41e67ca09269319c
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test image::test_image_buffer ... ok
[INFO] [stdout] test px::test_raw_buffer_funcs ... ok
[INFO] [stdout] test px::test_arithmetic ... ok
[INFO] [stdout] test scalar::test_arithmetic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests img
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/image/impl_core.rs - image::impl_core::ImageVal (line 24) ... ignored
[INFO] [stdout] test src/px/generic.rs - px::generic::PixelArithmetic (line 58) ... ok
[INFO] [stdout] test src/scalar/impl_core.rs - scalar::impl_core::ScalarVal (line 25) ... ok
[INFO] [stdout] test src/scalar/generic.rs - scalar::generic::Scalar (line 15) ... ok
[INFO] [stdout] test src/image/generics.rs - image::generics::Image (line 11) ... ok
[INFO] [stdout] test src/px/generic.rs - px::generic::Pixel (line 12) ... ok
[INFO] [stdout] test src/px/impl_core.rs - px::impl_core::PixelVal (line 20) ... ok
[INFO] [stdout] test src/px/generic.rs - px::generic::Pixel::calc_minimum_pitch (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0d74052833979547236edf6b442f25a10dd459d1444d30a8eea07e13d738528b"`
[INFO] running `"docker" "rm" "-f" "0d74052833979547236edf6b442f25a10dd459d1444d30a8eea07e13d738528b"`
[INFO] [stdout] 0d74052833979547236edf6b442f25a10dd459d1444d30a8eea07e13d738528b