[INFO] crate screenruster-saver-fractal 0.1.1 is already in cache
[INFO] extracting crate screenruster-saver-fractal 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/screenruster-saver-fractal/0.1.1
[INFO] extracting crate screenruster-saver-fractal 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/screenruster-saver-fractal/0.1.1
[INFO] validating manifest of screenruster-saver-fractal-0.1.1 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 screenruster-saver-fractal-0.1.1 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 screenruster-saver-fractal-0.1.1
[INFO] finished frobbing screenruster-saver-fractal-0.1.1
[INFO] frobbed toml for screenruster-saver-fractal-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/screenruster-saver-fractal/0.1.1/Cargo.toml
[INFO] started frobbing screenruster-saver-fractal-0.1.1
[INFO] finished frobbing screenruster-saver-fractal-0.1.1
[INFO] frobbed toml for screenruster-saver-fractal-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/screenruster-saver-fractal/0.1.1/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] [stderr]     Blocking waiting for file lock on package cache
[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 screenruster-saver-fractal-0.1.1 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-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/screenruster-saver-fractal/0.1.1:/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] 6b53bf75eacf97a74937663d703c0f72f48be6d0fb98077f6e21613c59b7d43a
[INFO] running `"docker" "start" "-a" "6b53bf75eacf97a74937663d703c0f72f48be6d0fb98077f6e21613c59b7d43a"`
[INFO] [stderr]    Compiling smallvec v0.1.8
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]    Compiling meval v0.0.9
[INFO] [stderr]    Compiling glium v0.16.0
[INFO] [stderr]    Compiling png v0.6.2
[INFO] [stderr]    Compiling palette v0.2.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling image v0.12.4
[INFO] [stderr]    Compiling screenruster-saver v0.1.8
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/screenruster-saver-0.1.8/src/lib.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | #![feature(macro_reexport, type_ascription)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: subsumed by `pub use`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/screenruster-saver-0.1.8/src/lib.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | #![feature(macro_reexport, type_ascription)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: The attribute `macro_reexport` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/screenruster-saver-0.1.8/src/lib.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 | #[macro_reexport(debug, error, info, log, log_enabled, trace, warn)]
[INFO] [stderr]    |   ^^^^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `macro_export`
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: The attribute `macro_reexport` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/screenruster-saver-0.1.8/src/lib.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 | #[macro_reexport(object, array)]
[INFO] [stderr]    |   ^^^^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `macro_export`
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: The attribute `macro_reexport` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/screenruster-saver-0.1.8/src/lib.rs:36:34
[INFO] [stderr]    |
[INFO] [stderr] 36 | #[cfg_attr(feature = "renderer", macro_reexport(implement_vertex, program, uniform))]
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `macro_export`
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `select!` in this scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/screenruster-saver-0.1.8/src/lib.rs:141:3
[INFO] [stderr]     |
[INFO] [stderr] 141 |         select! {
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/screenruster-saver-0.1.8/src/lib.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | #![feature(macro_reexport, type_ascription)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/screenruster-saver-0.1.8/src/lib.rs:16:35
[INFO] [stderr]    |
[INFO] [stderr] 16 | #![cfg_attr(feature = "renderer", feature(mpsc_select))]
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0557, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `screenruster-saver`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6b53bf75eacf97a74937663d703c0f72f48be6d0fb98077f6e21613c59b7d43a"`
[INFO] running `"docker" "rm" "-f" "6b53bf75eacf97a74937663d703c0f72f48be6d0fb98077f6e21613c59b7d43a"`
[INFO] [stdout] 6b53bf75eacf97a74937663d703c0f72f48be6d0fb98077f6e21613c59b7d43a