Dec 03 02:08:28.579 INFO testing mastodon-0.1.0 against 1.30.1 for beta-1.31-5
Dec 03 02:08:28.580 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 03 02:08:28.967 INFO [stdout] 27833965862ac4bdd3e31ecd0402a49b70e6bc0b7a3e7ce358fc11e2d70e2618
Dec 03 02:08:28.970 INFO running `"docker" "start" "-a" "27833965862ac4bdd3e31ecd0402a49b70e6bc0b7a3e7ce358fc11e2d70e2618"`
Dec 03 02:08:30.144 INFO [stderr] usermod: no changes
Dec 03 02:08:30.343 INFO [stderr]    Compiling syn v0.10.8
Dec 03 02:08:34.365 INFO [stderr]    Compiling serde_codegen_internals v0.11.3
Dec 03 02:08:35.994 INFO [stderr]    Compiling serde_codegen v0.8.23
Dec 03 02:08:38.791 INFO [stderr]    Compiling serde_derive v0.8.23
Dec 03 02:08:43.365 INFO [stderr]    Compiling mastodon v0.1.0 (/source)
Dec 03 02:08:47.075 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 02:08:47.075 INFO [stderr]  --> src/lib.rs:1:1
Dec 03 02:08:47.075 INFO [stderr]   |
Dec 03 02:08:47.075 INFO [stderr] 1 | #![feature(proc_macro)]
Dec 03 02:08:47.075 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 02:08:47.075 INFO [stderr] 
Dec 03 02:08:47.075 INFO [stderr] error: aborting due to previous error
Dec 03 02:08:47.075 INFO [stderr] 
Dec 03 02:08:47.075 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 02:08:47.091 INFO [stderr] error: Could not compile `mastodon`.
Dec 03 02:08:47.091 INFO [stderr] 
Dec 03 02:08:47.091 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 02:08:47.091 INFO [stderr] su: No module specific data is present
Dec 03 02:08:47.635 INFO running `"docker" "inspect" "27833965862ac4bdd3e31ecd0402a49b70e6bc0b7a3e7ce358fc11e2d70e2618"`
Dec 03 02:08:47.922 INFO running `"docker" "rm" "-f" "27833965862ac4bdd3e31ecd0402a49b70e6bc0b7a3e7ce358fc11e2d70e2618"`
Dec 03 02:08:48.201 INFO [stdout] 27833965862ac4bdd3e31ecd0402a49b70e6bc0b7a3e7ce358fc11e2d70e2618