Dec 02 21:53:04.179 INFO testing prometheus-static-metric-0.1.4 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 21:53:04.179 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 02 21:53:04.747 INFO [stdout] 2838d9551f0e321cdf5649ac1bab9702f70d9101f13444056c7107c1ebdf6d0b
Dec 02 21:53:04.754 INFO running `"docker" "start" "-a" "2838d9551f0e321cdf5649ac1bab9702f70d9101f13444056c7107c1ebdf6d0b"`
Dec 02 21:53:06.538 INFO [stderr] usermod: no changes
Dec 02 21:53:06.619 INFO [stderr]    Compiling prometheus-static-metric v0.1.4 (/source)
Dec 02 21:53:09.930 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 21:53:09.930 INFO [stderr]   --> src/lib.rs:14:1
Dec 02 21:53:09.930 INFO [stderr]    |
Dec 02 21:53:09.930 INFO [stderr] 14 | #![feature(proc_macro)]
Dec 02 21:53:09.930 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 21:53:09.930 INFO [stderr] 
Dec 02 21:53:09.931 INFO [stderr] error: aborting due to previous error
Dec 02 21:53:09.931 INFO [stderr] 
Dec 02 21:53:09.931 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 21:53:09.946 INFO [stderr] error: Could not compile `prometheus-static-metric`.
Dec 02 21:53:09.946 INFO [stderr] 
Dec 02 21:53:09.946 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 21:53:09.948 INFO [stderr] su: No module specific data is present
Dec 02 21:53:10.620 INFO running `"docker" "inspect" "2838d9551f0e321cdf5649ac1bab9702f70d9101f13444056c7107c1ebdf6d0b"`
Dec 02 21:53:10.855 INFO running `"docker" "rm" "-f" "2838d9551f0e321cdf5649ac1bab9702f70d9101f13444056c7107c1ebdf6d0b"`
Dec 02 21:53:11.191 INFO [stdout] 2838d9551f0e321cdf5649ac1bab9702f70d9101f13444056c7107c1ebdf6d0b