[INFO] crate glm_color 0.1.2 is already in cache
[INFO] extracting crate glm_color 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/glm_color/0.1.2
[INFO] extracting crate glm_color 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/glm_color/0.1.2
[INFO] validating manifest of glm_color-0.1.2 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 glm_color-0.1.2 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 glm_color-0.1.2
[INFO] finished frobbing glm_color-0.1.2
[INFO] frobbed toml for glm_color-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/glm_color/0.1.2/Cargo.toml
[INFO] started frobbing glm_color-0.1.2
[INFO] finished frobbing glm_color-0.1.2
[INFO] frobbed toml for glm_color-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/glm_color/0.1.2/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 glm_color-0.1.2 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/glm_color/0.1.2:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] b7d5e112d3b41dbe11f8756cc1455b216cf6506da6815981a500a5d2378ef330
[INFO] running `"docker" "start" "-a" "b7d5e112d3b41dbe11f8756cc1455b216cf6506da6815981a500a5d2378ef330"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling glm v0.2.3
[INFO] [stderr]    Compiling glm_color v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `rand::Rand`
[INFO] [stderr]   --> src/rgb.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 | use rand::{ Rand, Rng, thread_rng };
[INFO] [stderr]    |             ^^^^ no `Rand` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::Rand`
[INFO] [stderr]   --> src/hsv.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 | use rand::{ Rand, Rng, thread_rng };
[INFO] [stderr]    |             ^^^^ no `Rand` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::Rand`
[INFO] [stderr]   --> src/ycbcr.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 | use rand::{ Rand, Rng };
[INFO] [stderr]    |             ^^^^ no `Rand` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::Rand`
[INFO] [stderr]   --> src/srgb.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 | use rand::{ Rand, Rng };
[INFO] [stderr]    |             ^^^^ no `Rand` in the root
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `glm_color`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b7d5e112d3b41dbe11f8756cc1455b216cf6506da6815981a500a5d2378ef330"`
[INFO] running `"docker" "rm" "-f" "b7d5e112d3b41dbe11f8756cc1455b216cf6506da6815981a500a5d2378ef330"`
[INFO] [stdout] b7d5e112d3b41dbe11f8756cc1455b216cf6506da6815981a500a5d2378ef330