[INFO] crate coffee 0.3.2 is already in cache
[INFO] testing coffee-0.3.2 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate coffee 0.3.2 into work/builds/worker-3/source
[INFO] validating manifest of crates.io crate coffee 0.3.2 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate coffee 0.3.2
[INFO] finished tweaking crates.io crate coffee 0.3.2
[INFO] tweaked toml for crates.io crate coffee 0.3.2 written to work/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate coffee 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] c74ddcf87da31c53bc8f2d27af14a5e7abb71cb132ff80c931f4a4f783bdcc8d
[INFO] running `"docker" "start" "-a" "c74ddcf87da31c53bc8f2d27af14a5e7abb71cb132ff80c931f4a4f783bdcc8d"`
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling coffee v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling getrandom v0.1.11
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]    Compiling stretch v0.2.2
[INFO] [stderr]    Compiling alga v0.9.1
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr] error: You need to enable a graphics backend feature. Available options: opengl, vulkan, metal, dx11, dx12.
[INFO] [stderr]   --> build.rs:8:1
[INFO] [stderr]    |
[INFO] [stderr] 8  | / compile_error!(
[INFO] [stderr] 9  | |     "You need to enable a graphics backend feature. \
[INFO] [stderr] 10 | |      Available options: opengl, vulkan, metal, dx11, dx12."
[INFO] [stderr] 11 | | );
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `coffee`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c74ddcf87da31c53bc8f2d27af14a5e7abb71cb132ff80c931f4a4f783bdcc8d"`
[INFO] running `"docker" "rm" "-f" "c74ddcf87da31c53bc8f2d27af14a5e7abb71cb132ff80c931f4a4f783bdcc8d"`
[INFO] [stdout] c74ddcf87da31c53bc8f2d27af14a5e7abb71cb132ff80c931f4a4f783bdcc8d