[INFO] fetching crate glm_color 0.1.2...
[INFO] testing glm_color-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate glm_color 0.1.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate glm_color 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate glm_color 0.1.2
[INFO] finished tweaking crates.io crate glm_color 0.1.2
[INFO] tweaked toml for crates.io crate glm_color 0.1.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] caa3bdf211fff38796fb0c29fd73431abcabc5abaf7956e9731a8e88c62f02c8
[INFO] running `Command { std: "docker" "start" "-a" "caa3bdf211fff38796fb0c29fd73431abcabc5abaf7956e9731a8e88c62f02c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caa3bdf211fff38796fb0c29fd73431abcabc5abaf7956e9731a8e88c62f02c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caa3bdf211fff38796fb0c29fd73431abcabc5abaf7956e9731a8e88c62f02c8", kill_on_drop: false }`
[INFO] [stdout] caa3bdf211fff38796fb0c29fd73431abcabc5abaf7956e9731a8e88c62f02c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c4d61842f9109c09c2e5888036d09571ac65f6771f568002ebf2d03657ff398
[INFO] running `Command { std: "docker" "start" "-a" "9c4d61842f9109c09c2e5888036d09571ac65f6771f568002ebf2d03657ff398", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling quickcheck v0.2.27
[INFO] [stderr]    Compiling glm v0.2.3
[INFO] [stderr]    Compiling glm_color v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rand::Rand`
[INFO] [stdout]   --> src/rgb.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 | use rand::{ Rand, Rng, thread_rng };
[INFO] [stdout]    |             ^^^^ no `Rand` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand::Rand`
[INFO] [stdout]   --> src/hsv.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 | use rand::{ Rand, Rng, thread_rng };
[INFO] [stdout]    |             ^^^^ no `Rand` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand::Rand`
[INFO] [stdout]   --> src/ycbcr.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 | use rand::{ Rand, Rng };
[INFO] [stdout]    |             ^^^^ no `Rand` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand::Rand`
[INFO] [stdout]   --> src/srgb.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 | use rand::{ Rand, Rng };
[INFO] [stdout]    |             ^^^^ no `Rand` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `glm_color` due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9c4d61842f9109c09c2e5888036d09571ac65f6771f568002ebf2d03657ff398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c4d61842f9109c09c2e5888036d09571ac65f6771f568002ebf2d03657ff398", kill_on_drop: false }`
[INFO] [stdout] 9c4d61842f9109c09c2e5888036d09571ac65f6771f568002ebf2d03657ff398