Sep 14 09:00:28.294 INFO checking simple_json-0.2.3 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 09:00:28.295 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 09:00:28.295 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-5/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 09:00:28.486 INFO blam! e59aeeeec4d7cf98816f55745d060f72d2e568f16fe181f18d34720c025cbb43
Sep 14 09:00:28.488 INFO running `"docker" "start" "-a" "e59aeeeec4d7cf98816f55745d060f72d2e568f16fe181f18d34720c025cbb43"`
Sep 14 09:00:29.824 INFO kablam! usermod: no changes
Sep 14 09:00:29.862 INFO kablam!     Checking simple_json v0.2.3 (file:///source)
Sep 14 09:00:30.623 INFO kablam! warning: unused import: `Number`
Sep 14 09:00:30.623 INFO kablam!  --> tests/to_string.rs:4:26
Sep 14 09:00:30.623 INFO kablam!   |
Sep 14 09:00:30.623 INFO kablam! 4 | use simple_json::{ Json, Number };
Sep 14 09:00:30.623 INFO kablam!   |                          ^^^^^^
Sep 14 09:00:30.623 INFO kablam!   |
Sep 14 09:00:30.623 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 14 09:00:30.623 INFO kablam! 
Sep 14 09:00:30.827 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
Sep 14 09:00:30.828 INFO kablam! su: No module specific data is present
Sep 14 09:00:31.310 INFO running `"docker" "rm" "-f" "e59aeeeec4d7cf98816f55745d060f72d2e568f16fe181f18d34720c025cbb43"`
Sep 14 09:00:31.406 INFO blam! e59aeeeec4d7cf98816f55745d060f72d2e568f16fe181f18d34720c025cbb43