Dec 03 11:26:19.164 INFO testing fs2-0.4.3 against 1.30.1 for beta-1.31-5
Dec 03 11:26:19.164 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 11:26:19.523 INFO [stdout] 175c6eb2562b04bb38d4f70e13c8c118ed22b20c020f9268f538b50c9eb6d684
Dec 03 11:26:19.525 INFO running `"docker" "start" "-a" "175c6eb2562b04bb38d4f70e13c8c118ed22b20c020f9268f538b50c9eb6d684"`
Dec 03 11:26:20.443 INFO [stderr] usermod: no changes
Dec 03 11:26:20.512 INFO [stderr]    Compiling fs2 v0.4.3 (/source)
Dec 03 11:26:21.679 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
Dec 03 11:26:21.679 INFO [stderr] su: No module specific data is present
Dec 03 11:26:22.213 INFO running `"docker" "inspect" "175c6eb2562b04bb38d4f70e13c8c118ed22b20c020f9268f538b50c9eb6d684"`
Dec 03 11:26:22.461 INFO running `"docker" "rm" "-f" "175c6eb2562b04bb38d4f70e13c8c118ed22b20c020f9268f538b50c9eb6d684"`
Dec 03 11:26:22.745 INFO [stdout] 175c6eb2562b04bb38d4f70e13c8c118ed22b20c020f9268f538b50c9eb6d684
Dec 03 11:26:22.751 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 11:26:23.183 INFO [stdout] d47d0850473b9afd3d037202a4af2beeeef871994f0b402670f25262240ce639
Dec 03 11:26:23.197 INFO running `"docker" "start" "-a" "d47d0850473b9afd3d037202a4af2beeeef871994f0b402670f25262240ce639"`
Dec 03 11:26:23.867 INFO [stderr] usermod: no changes
Dec 03 11:26:23.909 INFO [stderr]    Compiling fs2 v0.4.3 (/source)
Dec 03 11:26:24.739 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 11:26:24.739 INFO [stderr]  --> src/lib.rs:5:19
Dec 03 11:26:24.739 INFO [stderr]   |
Dec 03 11:26:24.739 INFO [stderr] 5 | #![cfg_attr(test, feature(test))]
Dec 03 11:26:24.739 INFO [stderr]   |                   ^^^^^^^^^^^^^^
Dec 03 11:26:24.739 INFO [stderr] 
Dec 03 11:26:24.739 INFO [stderr] error: aborting due to previous error
Dec 03 11:26:24.740 INFO [stderr] 
Dec 03 11:26:24.740 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 11:26:24.743 INFO [stderr] error: Could not compile `fs2`.
Dec 03 11:26:24.743 INFO [stderr] 
Dec 03 11:26:24.743 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 11:26:24.744 INFO [stderr] su: No module specific data is present
Dec 03 11:26:25.265 INFO running `"docker" "inspect" "d47d0850473b9afd3d037202a4af2beeeef871994f0b402670f25262240ce639"`
Dec 03 11:26:25.505 INFO running `"docker" "rm" "-f" "d47d0850473b9afd3d037202a4af2beeeef871994f0b402670f25262240ce639"`
Dec 03 11:26:25.679 INFO [stdout] d47d0850473b9afd3d037202a4af2beeeef871994f0b402670f25262240ce639