Dec 02 19:30:10.881 INFO testing rtrace-1.0.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 19:30:10.881 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 19:30:12.128 INFO [stdout] 5a42487b8d4e12db46a0c15d6e9ef48615aaf345b55e30da328548a398f14556
Dec 02 19:30:12.130 INFO running `"docker" "start" "-a" "5a42487b8d4e12db46a0c15d6e9ef48615aaf345b55e30da328548a398f14556"`
Dec 02 19:30:13.515 INFO [stderr] usermod: no changes
Dec 02 19:30:13.655 INFO [stderr]    Compiling rtrace v1.0.0 (/source)
Dec 02 19:30:19.451 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.91s
Dec 02 19:30:19.455 INFO [stderr] su: No module specific data is present
Dec 02 19:30:20.067 INFO running `"docker" "inspect" "5a42487b8d4e12db46a0c15d6e9ef48615aaf345b55e30da328548a398f14556"`
Dec 02 19:30:20.303 INFO running `"docker" "rm" "-f" "5a42487b8d4e12db46a0c15d6e9ef48615aaf345b55e30da328548a398f14556"`
Dec 02 19:30:20.570 INFO [stdout] 5a42487b8d4e12db46a0c15d6e9ef48615aaf345b55e30da328548a398f14556
Dec 02 19:30:20.573 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 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 02 19:30:20.957 INFO [stdout] 072e52568395094866d5b1ad4058f3824e776b2e7b1a4c8649a11a095ef8a4b0
Dec 02 19:30:20.966 INFO running `"docker" "start" "-a" "072e52568395094866d5b1ad4058f3824e776b2e7b1a4c8649a11a095ef8a4b0"`
Dec 02 19:30:22.595 INFO [stderr] usermod: no changes
Dec 02 19:30:22.699 INFO [stderr]    Compiling rtrace v1.0.0 (/source)
Dec 02 19:30:24.059 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 19:30:24.059 INFO [stderr]  --> src/rust/lib.rs:1:19
Dec 02 19:30:24.059 INFO [stderr]   |
Dec 02 19:30:24.059 INFO [stderr] 1 | #![cfg_attr(test, feature(test))]
Dec 02 19:30:24.059 INFO [stderr]   |                   ^^^^^^^^^^^^^
Dec 02 19:30:24.059 INFO [stderr] 
Dec 02 19:30:24.071 INFO [stderr] error: aborting due to previous error
Dec 02 19:30:24.071 INFO [stderr] 
Dec 02 19:30:24.071 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 19:30:24.106 INFO [stderr] error: Could not compile `rtrace`.
Dec 02 19:30:24.106 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 19:30:24.615 INFO [stderr] error: build failed
Dec 02 19:30:24.615 INFO [stderr] su: No module specific data is present
Dec 02 19:30:25.201 INFO running `"docker" "inspect" "072e52568395094866d5b1ad4058f3824e776b2e7b1a4c8649a11a095ef8a4b0"`
Dec 02 19:30:25.507 INFO running `"docker" "rm" "-f" "072e52568395094866d5b1ad4058f3824e776b2e7b1a4c8649a11a095ef8a4b0"`
Dec 02 19:30:25.787 INFO [stdout] 072e52568395094866d5b1ad4058f3824e776b2e7b1a4c8649a11a095ef8a4b0