Dec 02 20:58:37.920 INFO testing rax-0.1.5 against 1.30.1 for beta-1.31-5
Dec 02 20:58:37.921 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 20:58:38.423 INFO [stdout] 79ef2164a2c19b96da400f46b2bd3abc067a0bdd663aad2f84ed46d84dc3caa8
Dec 02 20:58:38.426 INFO running `"docker" "start" "-a" "79ef2164a2c19b96da400f46b2bd3abc067a0bdd663aad2f84ed46d84dc3caa8"`
Dec 02 20:58:40.059 INFO [stderr] usermod: no changes
Dec 02 20:58:40.167 INFO [stderr]    Compiling rax v0.1.5 (/source)
Dec 02 20:58:40.923 INFO [stderr] warning: use of deprecated item 'gcc::Build': crate has been renamed to `cc`, the `gcc` name is not maintained
Dec 02 20:58:40.923 INFO [stderr]  --> build.rs:6:5
Dec 02 20:58:40.923 INFO [stderr]   |
Dec 02 20:58:40.923 INFO [stderr] 6 |     gcc::Build::new()
Dec 02 20:58:40.923 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 02 20:58:40.923 INFO [stderr]   |
Dec 02 20:58:40.923 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 02 20:58:40.923 INFO [stderr] 
Dec 02 20:58:40.923 INFO [stderr] warning: use of deprecated item 'gcc::Build::new': crate has been renamed to `cc`, the `gcc` name is not maintained
Dec 02 20:58:40.923 INFO [stderr]  --> build.rs:6:5
Dec 02 20:58:40.923 INFO [stderr]   |
Dec 02 20:58:40.923 INFO [stderr] 6 |     gcc::Build::new()
Dec 02 20:58:40.923 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 02 20:58:40.923 INFO [stderr] 
Dec 02 20:58:42.981 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 20:58:42.981 INFO [stderr]  --> src/lib.rs:2:1
Dec 02 20:58:42.981 INFO [stderr]   |
Dec 02 20:58:42.981 INFO [stderr] 2 | #![feature(test)]
Dec 02 20:58:42.981 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 02 20:58:42.981 INFO [stderr] 
Dec 02 20:58:42.981 INFO [stderr] error: aborting due to previous error
Dec 02 20:58:42.981 INFO [stderr] 
Dec 02 20:58:42.981 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 20:58:42.986 INFO [stderr] error: Could not compile `rax`.
Dec 02 20:58:42.986 INFO [stderr] 
Dec 02 20:58:42.986 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 20:58:42.987 INFO [stderr] su: No module specific data is present
Dec 02 20:58:43.508 INFO running `"docker" "inspect" "79ef2164a2c19b96da400f46b2bd3abc067a0bdd663aad2f84ed46d84dc3caa8"`
Dec 02 20:58:43.791 INFO running `"docker" "rm" "-f" "79ef2164a2c19b96da400f46b2bd3abc067a0bdd663aad2f84ed46d84dc3caa8"`
Dec 02 20:58:43.956 INFO [stdout] 79ef2164a2c19b96da400f46b2bd3abc067a0bdd663aad2f84ed46d84dc3caa8