Dec 03 14:43:16.263 INFO testing cucumber_rust-0.5.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 14:43:16.263 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 14:43:16.591 INFO [stdout] 948dc431a56196be023fdacd0eb30c624fbbaaf855d485d2676c4050c821ee8c
Dec 03 14:43:16.596 INFO running `"docker" "start" "-a" "948dc431a56196be023fdacd0eb30c624fbbaaf855d485d2676c4050c821ee8c"`
Dec 03 14:43:17.550 INFO [stderr] usermod: no changes
Dec 03 14:43:17.746 INFO [stderr]    Compiling clap v2.32.0
Dec 03 14:43:17.746 INFO [stderr]    Compiling gherkin_rust v0.4.1
Dec 03 14:43:17.746 INFO [stderr]    Compiling ignore v0.4.4
Dec 03 14:43:31.035 INFO [stderr]    Compiling globwalk v0.5.0
Dec 03 14:43:40.597 INFO [stderr]    Compiling cucumber_rust v0.5.0 (/source)
Dec 03 14:43:44.037 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 14:43:44.038 INFO [stderr]  --> src/lib.rs:9:34
Dec 03 14:43:44.038 INFO [stderr]   |
Dec 03 14:43:44.038 INFO [stderr] 9 | #![cfg_attr(feature = "nightly", feature(set_stdio))]
Dec 03 14:43:44.038 INFO [stderr]   |                                  ^^^^^^^^^^^^^^^^^^
Dec 03 14:43:44.038 INFO [stderr] 
Dec 03 14:43:44.039 INFO [stderr] error: aborting due to previous error
Dec 03 14:43:44.039 INFO [stderr] 
Dec 03 14:43:44.039 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 14:43:44.053 INFO [stderr] error: Could not compile `cucumber_rust`.
Dec 03 14:43:44.053 INFO [stderr] 
Dec 03 14:43:44.053 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 14:43:44.055 INFO [stderr] su: No module specific data is present
Dec 03 14:43:45.732 INFO running `"docker" "inspect" "948dc431a56196be023fdacd0eb30c624fbbaaf855d485d2676c4050c821ee8c"`
Dec 03 14:43:45.885 INFO running `"docker" "rm" "-f" "948dc431a56196be023fdacd0eb30c624fbbaaf855d485d2676c4050c821ee8c"`
Dec 03 14:43:46.034 INFO [stdout] 948dc431a56196be023fdacd0eb30c624fbbaaf855d485d2676c4050c821ee8c