Dec 02 03:38:59.972 INFO testing SDRust/png-fabuloso against 1.30.1 for beta-1.31-5
Dec 02 03:38:59.972 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/beta-1.31-5/1.30.1:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 03:39:00.423 INFO [stdout] 511d0ece6ad0ff84459fdb5a20f61985845e892f319f43d76051416e75c3df8a
Dec 02 03:39:00.425 INFO running `"docker" "start" "-a" "511d0ece6ad0ff84459fdb5a20f61985845e892f319f43d76051416e75c3df8a"`
Dec 02 03:39:01.954 INFO [stderr] usermod: no changes
Dec 02 03:39:02.087 INFO [stderr]    Compiling miniz-sys v0.1.7
Dec 02 03:39:02.087 INFO [stderr]    Compiling crc v1.3.0
Dec 02 03:39:05.343 INFO [stderr]    Compiling flate2 v0.2.14
Dec 02 03:39:06.631 INFO [stderr]    Compiling pngstogram v0.1.0 (/source)
Dec 02 03:39:07.199 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 03:39:07.199 INFO [stderr]  --> src/main.rs:1:1
Dec 02 03:39:07.199 INFO [stderr]   |
Dec 02 03:39:07.199 INFO [stderr] 1 | #![feature(type_ascription)]
Dec 02 03:39:07.199 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 03:39:07.199 INFO [stderr] 
Dec 02 03:39:07.199 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 03:39:07.199 INFO [stderr]  --> src/main.rs:2:1
Dec 02 03:39:07.199 INFO [stderr]   |
Dec 02 03:39:07.199 INFO [stderr] 2 | #![feature(slice_patterns)]
Dec 02 03:39:07.199 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 03:39:07.199 INFO [stderr] 
Dec 02 03:39:07.199 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 03:39:07.199 INFO [stderr] 
Dec 02 03:39:07.199 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 03:39:07.199 INFO [stderr] error: Could not compile `pngstogram`.
Dec 02 03:39:07.199 INFO [stderr] 
Dec 02 03:39:07.199 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 03:39:07.199 INFO [stderr] su: No module specific data is present
Dec 02 03:39:07.993 INFO running `"docker" "inspect" "511d0ece6ad0ff84459fdb5a20f61985845e892f319f43d76051416e75c3df8a"`
Dec 02 03:39:08.241 INFO running `"docker" "rm" "-f" "511d0ece6ad0ff84459fdb5a20f61985845e892f319f43d76051416e75c3df8a"`
Dec 02 03:39:08.514 INFO [stdout] 511d0ece6ad0ff84459fdb5a20f61985845e892f319f43d76051416e75c3df8a