Dec 13 06:24:34.927 INFO testing rbalicki2/wasm-experiments against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 06:24:34.927 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 13 06:24:35.467 INFO [stdout] 64f7fa12543e27306859edb427c7ec05faa69ea630be41c5ed6aad80a46e5192
Dec 13 06:24:35.472 INFO running `"docker" "start" "-a" "64f7fa12543e27306859edb427c7ec05faa69ea630be41c5ed6aad80a46e5192"`
Dec 13 06:24:36.955 INFO [stderr] usermod: no changes
Dec 13 06:24:37.027 INFO [stderr]    Compiling stdweb v0.3.0
Dec 13 06:24:59.373 INFO [stderr]    Compiling wasm-minimal v0.1.0 (/source)
Dec 13 06:24:59.647 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 06:24:59.647 INFO [stderr]  --> src/lib.rs:2:1
Dec 13 06:24:59.647 INFO [stderr]   |
Dec 13 06:24:59.647 INFO [stderr] 2 | extern crate libc;
Dec 13 06:24:59.647 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 13 06:24:59.647 INFO [stderr]   |
Dec 13 06:24:59.647 INFO [stderr]   = help: add #![feature(rustc_private)] to the crate attributes to enable
Dec 13 06:24:59.647 INFO [stderr] 
Dec 13 06:24:59.664 INFO [stderr] error: aborting due to previous error
Dec 13 06:24:59.664 INFO [stderr] 
Dec 13 06:24:59.664 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 13 06:24:59.672 INFO [stderr] error: Could not compile `wasm-minimal`.
Dec 13 06:24:59.672 INFO [stderr] 
Dec 13 06:24:59.672 INFO [stderr] To learn more, run the command again with --verbose.
Dec 13 06:24:59.674 INFO [stderr] su: No module specific data is present
Dec 13 06:25:01.836 INFO running `"docker" "inspect" "64f7fa12543e27306859edb427c7ec05faa69ea630be41c5ed6aad80a46e5192"`
Dec 13 06:25:02.215 INFO running `"docker" "rm" "-f" "64f7fa12543e27306859edb427c7ec05faa69ea630be41c5ed6aad80a46e5192"`
Dec 13 06:25:02.575 INFO [stdout] 64f7fa12543e27306859edb427c7ec05faa69ea630be41c5ed6aad80a46e5192