Dec 03 13:01:59.568 INFO testing encoding-0.2.33 against 1.30.1 for beta-1.31-5
Dec 03 13:01:59.568 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 13:01:59.911 INFO [stdout] 67ce2916d87aa159b71fb6f5c00761b0f1dce9187a45832a541b1d737912d4d9
Dec 03 13:01:59.916 INFO running `"docker" "start" "-a" "67ce2916d87aa159b71fb6f5c00761b0f1dce9187a45832a541b1d737912d4d9"`
Dec 03 13:02:01.048 INFO [stderr] usermod: no changes
Dec 03 13:02:01.122 INFO [stderr]    Compiling encoding v0.2.33 (/source)
Dec 03 13:02:03.501 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
Dec 03 13:02:03.503 INFO [stderr] su: No module specific data is present
Dec 03 13:02:03.761 INFO running `"docker" "inspect" "67ce2916d87aa159b71fb6f5c00761b0f1dce9187a45832a541b1d737912d4d9"`
Dec 03 13:02:03.844 INFO running `"docker" "rm" "-f" "67ce2916d87aa159b71fb6f5c00761b0f1dce9187a45832a541b1d737912d4d9"`
Dec 03 13:02:03.935 INFO [stdout] 67ce2916d87aa159b71fb6f5c00761b0f1dce9187a45832a541b1d737912d4d9
Dec 03 13:02:03.937 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 test --frozen --no-run" "-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 13:02:04.191 INFO [stdout] 216e7f6491799432c4cdb35c4386f74e0ee1d4ac56f2d617d417fac5ff302a9a
Dec 03 13:02:04.196 INFO running `"docker" "start" "-a" "216e7f6491799432c4cdb35c4386f74e0ee1d4ac56f2d617d417fac5ff302a9a"`
Dec 03 13:02:04.732 INFO [stderr] usermod: no changes
Dec 03 13:02:04.768 INFO [stderr]    Compiling encoding v0.2.33 (/source)
Dec 03 13:02:07.378 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 13:02:07.378 INFO [stderr]    --> src/lib.rs:207:19
Dec 03 13:02:07.378 INFO [stderr]     |
Dec 03 13:02:07.378 INFO [stderr] 207 | #![cfg_attr(test, feature(test))] // lib stability features as per RFC #507
Dec 03 13:02:07.378 INFO [stderr]     |                   ^^^^^^^^^^^^^^
Dec 03 13:02:07.378 INFO [stderr] 
Dec 03 13:02:07.479 INFO [stderr] error: aborting due to previous error
Dec 03 13:02:07.479 INFO [stderr] 
Dec 03 13:02:07.479 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 13:02:07.483 INFO [stderr] error: Could not compile `encoding`.
Dec 03 13:02:07.483 INFO [stderr] 
Dec 03 13:02:07.483 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 13:02:07.484 INFO [stderr] su: No module specific data is present
Dec 03 13:02:07.737 INFO running `"docker" "inspect" "216e7f6491799432c4cdb35c4386f74e0ee1d4ac56f2d617d417fac5ff302a9a"`
Dec 03 13:02:07.796 INFO running `"docker" "rm" "-f" "216e7f6491799432c4cdb35c4386f74e0ee1d4ac56f2d617d417fac5ff302a9a"`
Dec 03 13:02:07.888 INFO [stdout] 216e7f6491799432c4cdb35c4386f74e0ee1d4ac56f2d617d417fac5ff302a9a