Sep 19 18:11:58.615 INFO checking simple_json-0.2.3 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 18:11:58.615 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 18:11:58.615 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-4/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 18:11:58.755 INFO blam! 479bc76252dfd73dde237c618a806baf074f7d3dfe43a9999f1d70d778ce9319
Sep 19 18:11:58.757 INFO running `"docker" "start" "-a" "479bc76252dfd73dde237c618a806baf074f7d3dfe43a9999f1d70d778ce9319"`
Sep 19 18:11:59.645 INFO kablam! usermod: no changes
Sep 19 18:11:59.672 INFO kablam!     Checking simple_json v0.2.3 (/source)
Sep 19 18:12:00.369 INFO kablam! warning: unused import: `Number`
Sep 19 18:12:00.369 INFO kablam!  --> tests/to_string.rs:4:26
Sep 19 18:12:00.369 INFO kablam!   |
Sep 19 18:12:00.369 INFO kablam! 4 | use simple_json::{ Json, Number };
Sep 19 18:12:00.369 INFO kablam!   |                          ^^^^^^
Sep 19 18:12:00.369 INFO kablam!   |
Sep 19 18:12:00.369 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 19 18:12:00.369 INFO kablam! 
Sep 19 18:12:00.622 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
Sep 19 18:12:00.623 INFO kablam! su: No module specific data is present
Sep 19 18:12:01.158 INFO running `"docker" "rm" "-f" "479bc76252dfd73dde237c618a806baf074f7d3dfe43a9999f1d70d778ce9319"`
Sep 19 18:12:01.226 INFO blam! 479bc76252dfd73dde237c618a806baf074f7d3dfe43a9999f1d70d778ce9319