Dec 13 18:44:10.318 INFO testing gavynriebau/rrat against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 18:44:10.318 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 13 18:44:10.715 INFO [stdout] dd010ac0c35ca649208d049580a2f3d92ae9c1e58b34cdf1ed66d33fcd312e68
Dec 13 18:44:10.720 INFO running `"docker" "start" "-a" "dd010ac0c35ca649208d049580a2f3d92ae9c1e58b34cdf1ed66d33fcd312e68"`
Dec 13 18:44:12.282 INFO [stderr] usermod: no changes
Dec 13 18:44:12.411 INFO [stderr]    Compiling chrono v0.4.0
Dec 13 18:44:15.631 INFO [stderr]    Compiling env_logger v0.5.2
Dec 13 18:44:18.031 INFO [stderr]    Compiling rrat v0.1.0 (/source)
Dec 13 18:44:19.039 INFO [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead? (see issue #27812)
Dec 13 18:44:19.039 INFO [stderr]   --> src/main.rs:13:1
Dec 13 18:44:19.039 INFO [stderr]    |
Dec 13 18:44:19.039 INFO [stderr] 13 | extern crate libc;
Dec 13 18:44:19.039 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 13 18:44:19.039 INFO [stderr]    |
Dec 13 18:44:19.039 INFO [stderr]    = help: add #![feature(rustc_private)] to the crate attributes to enable
Dec 13 18:44:19.039 INFO [stderr] 
Dec 13 18:44:19.139 INFO [stderr] error: aborting due to previous error
Dec 13 18:44:19.139 INFO [stderr] 
Dec 13 18:44:19.139 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 13 18:44:19.151 INFO [stderr] error: Could not compile `rrat`.
Dec 13 18:44:19.152 INFO [stderr] 
Dec 13 18:44:19.152 INFO [stderr] To learn more, run the command again with --verbose.
Dec 13 18:44:19.153 INFO [stderr] su: No module specific data is present
Dec 13 18:44:20.090 INFO running `"docker" "inspect" "dd010ac0c35ca649208d049580a2f3d92ae9c1e58b34cdf1ed66d33fcd312e68"`
Dec 13 18:44:20.443 INFO running `"docker" "rm" "-f" "dd010ac0c35ca649208d049580a2f3d92ae9c1e58b34cdf1ed66d33fcd312e68"`
Dec 13 18:44:20.767 INFO [stdout] dd010ac0c35ca649208d049580a2f3d92ae9c1e58b34cdf1ed66d33fcd312e68