Oct 13 13:09:06.093 INFO checking json_errors-0.1.10 against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 13:09:06.093 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-alt check --frozen --all --all-targets" "-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"`
Oct 13 13:09:06.280 INFO blam! 9d1625d700e8ef2024fbcb8ac4a687690b9f40bfe856b4bd21a9cef42a79846d
Oct 13 13:09:06.280 INFO running `"docker" "start" "-a" "9d1625d700e8ef2024fbcb8ac4a687690b9f40bfe856b4bd21a9cef42a79846d"`
Oct 13 13:09:06.830 INFO kablam! usermod: no changes
Oct 13 13:09:07.075 INFO kablam!     Checking json_errors v0.1.10 (/source)
Oct 13 13:09:12.294 INFO kablam! warning: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
Oct 13 13:09:12.294 INFO kablam!  --> src/lib.rs:1:12
Oct 13 13:09:12.294 INFO kablam!   |
Oct 13 13:09:12.295 INFO kablam! 1 | #![feature(extern_prelude)]
Oct 13 13:09:12.295 INFO kablam!   |            ^^^^^^^^^^^^^^
Oct 13 13:09:12.295 INFO kablam!   |
Oct 13 13:09:12.295 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 13 13:09:12.296 INFO kablam! 
Oct 13 13:09:12.766 INFO kablam! warning: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
Oct 13 13:09:12.766 INFO kablam!  --> src/lib.rs:1:12
Oct 13 13:09:12.767 INFO kablam!   |
Oct 13 13:09:12.767 INFO kablam! 1 | #![feature(extern_prelude)]
Oct 13 13:09:12.768 INFO kablam!   |            ^^^^^^^^^^^^^^
Oct 13 13:09:12.768 INFO kablam!   |
Oct 13 13:09:12.769 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 13 13:09:12.769 INFO kablam! 
Oct 13 13:09:12.837 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.97s
Oct 13 13:09:12.844 INFO kablam! su: No module specific data is present
Oct 13 13:09:13.524 INFO running `"docker" "rm" "-f" "9d1625d700e8ef2024fbcb8ac4a687690b9f40bfe856b4bd21a9cef42a79846d"`
Oct 13 13:09:13.764 INFO blam! 9d1625d700e8ef2024fbcb8ac4a687690b9f40bfe856b4bd21a9cef42a79846d