[INFO] updating cached repository staronj/Automata
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/staronj/Automata
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/staronj/Automata" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/staronj/Automata"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/staronj/Automata'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/staronj/Automata" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/staronj/Automata"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/staronj/Automata'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7b7c6f50cc9be0064d27d12e98a7cc8ca022ee89
[INFO] sha for GitHub repo staronj/Automata: 7b7c6f50cc9be0064d27d12e98a7cc8ca022ee89
[INFO] validating manifest of staronj/Automata on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of staronj/Automata on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing staronj/Automata
[INFO] finished frobbing staronj/Automata
[INFO] frobbed toml for staronj/Automata written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/staronj/Automata/Cargo.toml
[INFO] started frobbing staronj/Automata
[INFO] finished frobbing staronj/Automata
[INFO] frobbed toml for staronj/Automata written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/staronj/Automata/Cargo.toml
[INFO] crate staronj/Automata already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking staronj/Automata against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-0/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/staronj/Automata:/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=forbid" "-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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b3ff4e5d92ef80742694ca293aca7ccc552b3d4da93fe41b339a7a6f7f9b797a
[INFO] running `"docker" "start" "-a" "b3ff4e5d92ef80742694ca293aca7ccc552b3d4da93fe41b339a7a6f7f9b797a"`
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling cl-sys v0.4.1
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]     Checking is_sorted v0.1.0
[INFO] [stderr]     Checking multiset v0.0.4
[INFO] [stderr]     Checking superslice v0.1.0
[INFO] [stderr]     Checking bytesize v1.0.0
[INFO] [stderr]     Checking colorify v0.2.3
[INFO] [stderr]     Checking qutex v0.2.1
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling ocl-core v0.10.0
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr] error[E0658]: use of unstable library feature 'is_sorted': new API (see issue #53485)
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/is_sorted-0.1.0/src/lib.rs:119:31
[INFO] [stderr]     |
[INFO] [stderr] 119 |         self.map(|v| key(&v)).is_sorted()
[INFO] [stderr]     |                               ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add #![feature(is_sorted)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: Could not compile `is_sorted`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "b3ff4e5d92ef80742694ca293aca7ccc552b3d4da93fe41b339a7a6f7f9b797a"`
[INFO] running `"docker" "rm" "-f" "b3ff4e5d92ef80742694ca293aca7ccc552b3d4da93fe41b339a7a6f7f9b797a"`
[INFO] [stdout] b3ff4e5d92ef80742694ca293aca7ccc552b3d4da93fe41b339a7a6f7f9b797a