[INFO] updating cached repository manpat/rs-wiresim
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/manpat/rs-wiresim
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/manpat/rs-wiresim" "work/ex/beta-1.37-6/sources/1.36.0/gh/manpat/rs-wiresim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/manpat/rs-wiresim'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/manpat/rs-wiresim" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/manpat/rs-wiresim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/manpat/rs-wiresim'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f9a2992269c887c6832112a838494a2a5bd6b247
[INFO] sha for GitHub repo manpat/rs-wiresim: f9a2992269c887c6832112a838494a2a5bd6b247
[INFO] validating manifest of manpat/rs-wiresim 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 manpat/rs-wiresim 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 manpat/rs-wiresim
[INFO] finished frobbing manpat/rs-wiresim
[INFO] frobbed toml for manpat/rs-wiresim written to work/ex/beta-1.37-6/sources/1.36.0/gh/manpat/rs-wiresim/Cargo.toml
[INFO] started frobbing manpat/rs-wiresim
[INFO] finished frobbing manpat/rs-wiresim
[INFO] frobbed toml for manpat/rs-wiresim written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/manpat/rs-wiresim/Cargo.toml
[INFO] crate manpat/rs-wiresim already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing manpat/rs-wiresim 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/manpat/rs-wiresim:/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] 5af115c574067097353d713267817af2a9164acd2f320781b4f1e5ae7dac84d3
[INFO] running `"docker" "start" "-a" "5af115c574067097353d713267817af2a9164acd2f320781b4f1e5ae7dac84d3"`
[INFO] [stderr]    Compiling rgb v0.7.2
[INFO] [stderr]    Compiling lodepng v1.1.3
[INFO] [stderr]    Compiling sdl2-sys v0.30.0
[INFO] [stderr]    Compiling wire v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling sdl2 v0.30.0
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(box_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `wire`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5af115c574067097353d713267817af2a9164acd2f320781b4f1e5ae7dac84d3"`
[INFO] running `"docker" "rm" "-f" "5af115c574067097353d713267817af2a9164acd2f320781b4f1e5ae7dac84d3"`
[INFO] [stdout] 5af115c574067097353d713267817af2a9164acd2f320781b4f1e5ae7dac84d3