Dec 14 19:40:38.388 INFO testing skein-ffi-0.0.1 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 19:40:38.389 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 14 19:40:38.943 INFO [stdout] 236a386c8f2555209b802b549b0d86e2ce3d008762bfc1fad718b0458b08a62b
Dec 14 19:40:38.945 INFO running `"docker" "start" "-a" "236a386c8f2555209b802b549b0d86e2ce3d008762bfc1fad718b0458b08a62b"`
Dec 14 19:40:40.383 INFO [stderr] usermod: no changes
Dec 14 19:40:40.459 INFO [stderr]    Compiling skein-ffi v0.0.1 (/source)
Dec 14 19:40:40.979 INFO [stderr] warning: use of deprecated item 'gcc::Build': crate has been renamed to `cc`, the `gcc` name is not maintained
Dec 14 19:40:40.979 INFO [stderr]  --> build.rs:4:5
Dec 14 19:40:40.979 INFO [stderr]   |
Dec 14 19:40:40.979 INFO [stderr] 4 |     gcc::Build::new()
Dec 14 19:40:40.979 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 14 19:40:40.979 INFO [stderr]   |
Dec 14 19:40:40.979 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 14 19:40:40.979 INFO [stderr] 
Dec 14 19:40:40.979 INFO [stderr] warning: use of deprecated item 'gcc::Build::new': crate has been renamed to `cc`, the `gcc` name is not maintained
Dec 14 19:40:40.979 INFO [stderr]  --> build.rs:4:5
Dec 14 19:40:40.979 INFO [stderr]   |
Dec 14 19:40:40.979 INFO [stderr] 4 |     gcc::Build::new()
Dec 14 19:40:40.979 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 14 19:40:40.979 INFO [stderr] 
Dec 14 19:40:42.023 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 14 19:40:42.023 INFO [stderr]  --> src/lib.rs:4:1
Dec 14 19:40:42.023 INFO [stderr]   |
Dec 14 19:40:42.023 INFO [stderr] 4 | extern crate libc;
Dec 14 19:40:42.023 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 14 19:40:42.023 INFO [stderr]   |
Dec 14 19:40:42.023 INFO [stderr]   = help: add #![feature(rustc_private)] to the crate attributes to enable
Dec 14 19:40:42.023 INFO [stderr] 
Dec 14 19:40:42.023 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 14 19:40:42.023 INFO [stderr]  --> src/native.rs:2:12
Dec 14 19:40:42.023 INFO [stderr]   |
Dec 14 19:40:42.023 INFO [stderr] 2 | use libc::{c_int};
Dec 14 19:40:42.023 INFO [stderr]   |            ^^^^^
Dec 14 19:40:42.023 INFO [stderr]   |
Dec 14 19:40:42.023 INFO [stderr]   = help: add #![feature(rustc_private)] to the crate attributes to enable
Dec 14 19:40:42.023 INFO [stderr] 
Dec 14 19:40:42.023 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 14 19:40:42.023 INFO [stderr]  --> src/native.rs:5:35
Dec 14 19:40:42.023 INFO [stderr]   |
Dec 14 19:40:42.023 INFO [stderr] 5 |     pub fn skein_hash(hashbitlen: c_int, data: *const u8, databitlen: u64, hashval: *mut u8) -> c_int;
Dec 14 19:40:42.023 INFO [stderr]   |                                   ^^^^^
Dec 14 19:40:42.023 INFO [stderr]   |
Dec 14 19:40:42.023 INFO [stderr]   = help: add #![feature(rustc_private)] to the crate attributes to enable
Dec 14 19:40:42.023 INFO [stderr] 
Dec 14 19:40:42.023 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 14 19:40:42.023 INFO [stderr]  --> src/native.rs:5:97
Dec 14 19:40:42.023 INFO [stderr]   |
Dec 14 19:40:42.023 INFO [stderr] 5 |     pub fn skein_hash(hashbitlen: c_int, data: *const u8, databitlen: u64, hashval: *mut u8) -> c_int;
Dec 14 19:40:42.023 INFO [stderr]   |                                                                                                 ^^^^^
Dec 14 19:40:42.023 INFO [stderr]   |
Dec 14 19:40:42.023 INFO [stderr]   = help: add #![feature(rustc_private)] to the crate attributes to enable
Dec 14 19:40:42.023 INFO [stderr] 
Dec 14 19:40:42.063 INFO [stderr] error: aborting due to 4 previous errors
Dec 14 19:40:42.063 INFO [stderr] 
Dec 14 19:40:42.063 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 14 19:40:42.069 INFO [stderr] error: Could not compile `skein-ffi`.
Dec 14 19:40:42.069 INFO [stderr] 
Dec 14 19:40:42.069 INFO [stderr] To learn more, run the command again with --verbose.
Dec 14 19:40:42.081 INFO [stderr] su: No module specific data is present
Dec 14 19:40:42.614 INFO running `"docker" "inspect" "236a386c8f2555209b802b549b0d86e2ce3d008762bfc1fad718b0458b08a62b"`
Dec 14 19:40:42.819 INFO running `"docker" "rm" "-f" "236a386c8f2555209b802b549b0d86e2ce3d008762bfc1fad718b0458b08a62b"`
Dec 14 19:40:43.163 INFO [stdout] 236a386c8f2555209b802b549b0d86e2ce3d008762bfc1fad718b0458b08a62b