Oct 13 08:30:36.302 INFO checking simple_json-0.2.3 against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 08:30:36.303 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-2/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/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 08:30:36.452 INFO blam! f521d729366d13840a1051b99cf88e97d56e7f28788b5b7ab7228f10ef836c01
Oct 13 08:30:36.454 INFO running `"docker" "start" "-a" "f521d729366d13840a1051b99cf88e97d56e7f28788b5b7ab7228f10ef836c01"`
Oct 13 08:30:37.052 INFO kablam! usermod: no changes
Oct 13 08:30:37.080 INFO kablam!     Checking simple_json v0.2.3 (/source)
Oct 13 08:30:40.368 INFO kablam! warning: unused import: `Number`
Oct 13 08:30:40.369 INFO kablam!  --> tests/to_string.rs:4:26
Oct 13 08:30:40.369 INFO kablam!   |
Oct 13 08:30:40.369 INFO kablam! 4 | use simple_json::{ Json, Number };
Oct 13 08:30:40.369 INFO kablam!   |                          ^^^^^^
Oct 13 08:30:40.369 INFO kablam!   |
Oct 13 08:30:40.370 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 08:30:40.370 INFO kablam! 
Oct 13 08:30:40.517 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.45s
Oct 13 08:30:40.519 INFO kablam! su: No module specific data is present
Oct 13 08:30:40.799 INFO running `"docker" "rm" "-f" "f521d729366d13840a1051b99cf88e97d56e7f28788b5b7ab7228f10ef836c01"`
Oct 13 08:30:40.873 INFO blam! f521d729366d13840a1051b99cf88e97d56e7f28788b5b7ab7228f10ef836c01