Dec 02 19:30:11.243 INFO testing rtrace-1.0.0 against 1.30.1 for beta-1.31-5
Dec 02 19:30:11.243 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 02 19:30:12.186 INFO [stdout] d20d27ba6aaf7862bb78b6dac233cc008b3fe656859d053a05e0af27a7647e54
Dec 02 19:30:12.195 INFO running `"docker" "start" "-a" "d20d27ba6aaf7862bb78b6dac233cc008b3fe656859d053a05e0af27a7647e54"`
Dec 02 19:30:13.504 INFO [stderr] usermod: no changes
Dec 02 19:30:13.708 INFO [stderr]    Compiling rtrace v1.0.0 (/source)
Dec 02 19:30:19.435 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.89s
Dec 02 19:30:19.444 INFO [stderr] su: No module specific data is present
Dec 02 19:30:19.849 INFO running `"docker" "inspect" "d20d27ba6aaf7862bb78b6dac233cc008b3fe656859d053a05e0af27a7647e54"`
Dec 02 19:30:20.011 INFO running `"docker" "rm" "-f" "d20d27ba6aaf7862bb78b6dac233cc008b3fe656859d053a05e0af27a7647e54"`
Dec 02 19:30:20.219 INFO [stdout] d20d27ba6aaf7862bb78b6dac233cc008b3fe656859d053a05e0af27a7647e54
Dec 02 19:30:20.225 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 02 19:30:20.739 INFO [stdout] 15a6f6ef251886c9ab78b0af26cead24e0d09fa3f936acffa096240854e85730
Dec 02 19:30:20.739 INFO running `"docker" "start" "-a" "15a6f6ef251886c9ab78b0af26cead24e0d09fa3f936acffa096240854e85730"`
Dec 02 19:30:22.231 INFO [stderr] usermod: no changes
Dec 02 19:30:22.370 INFO [stderr]    Compiling rtrace v1.0.0 (/source)
Dec 02 19:30:24.311 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 19:30:24.311 INFO [stderr]  --> src/rust/lib.rs:1:19
Dec 02 19:30:24.311 INFO [stderr]   |
Dec 02 19:30:24.311 INFO [stderr] 1 | #![cfg_attr(test, feature(test))]
Dec 02 19:30:24.311 INFO [stderr]   |                   ^^^^^^^^^^^^^^
Dec 02 19:30:24.311 INFO [stderr] 
Dec 02 19:30:24.311 INFO [stderr] error: aborting due to previous error
Dec 02 19:30:24.311 INFO [stderr] 
Dec 02 19:30:24.311 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 19:30:24.319 INFO [stderr] error: Could not compile `rtrace`.
Dec 02 19:30:24.319 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 19:30:24.331 INFO [stderr] error: build failed
Dec 02 19:30:24.331 INFO [stderr] su: No module specific data is present
Dec 02 19:30:25.051 INFO running `"docker" "inspect" "15a6f6ef251886c9ab78b0af26cead24e0d09fa3f936acffa096240854e85730"`
Dec 02 19:30:25.283 INFO running `"docker" "rm" "-f" "15a6f6ef251886c9ab78b0af26cead24e0d09fa3f936acffa096240854e85730"`
Dec 02 19:30:25.479 INFO [stdout] 15a6f6ef251886c9ab78b0af26cead24e0d09fa3f936acffa096240854e85730