Oct 21 23:38:18.968 INFO checking simple_json-0.2.3 against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 23:38:18.968 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-6/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 21 23:38:19.372 INFO blam! 07a16b339ae5bbc3e53dab4e5c490839349714b4c492992b5530c9d2d38b5225
Oct 21 23:38:19.376 INFO running `"docker" "start" "-a" "07a16b339ae5bbc3e53dab4e5c490839349714b4c492992b5530c9d2d38b5225"`
Oct 21 23:38:20.264 INFO kablam! usermod: no changes
Oct 21 23:38:20.317 INFO kablam!     Checking simple_json v0.2.3 (/source)
Oct 21 23:38:21.652 INFO kablam! warning: unused import: `Number`
Oct 21 23:38:21.652 INFO kablam!  --> tests/to_string.rs:4:26
Oct 21 23:38:21.652 INFO kablam!   |
Oct 21 23:38:21.652 INFO kablam! 4 | use simple_json::{ Json, Number };
Oct 21 23:38:21.653 INFO kablam!   |                          ^^^^^^
Oct 21 23:38:21.653 INFO kablam!   |
Oct 21 23:38:21.653 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 21 23:38:21.653 INFO kablam! 
Oct 21 23:38:22.057 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
Oct 21 23:38:22.059 INFO kablam! su: No module specific data is present
Oct 21 23:38:22.301 INFO running `"docker" "rm" "-f" "07a16b339ae5bbc3e53dab4e5c490839349714b4c492992b5530c9d2d38b5225"`
Oct 21 23:38:22.434 INFO blam! 07a16b339ae5bbc3e53dab4e5c490839349714b4c492992b5530c9d2d38b5225