Sep 05 22:23:46.335 INFO checking string-interner-0.7.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 22:23:46.335 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 22:23:46.335 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-2/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 22:23:46.489 INFO blam! f041a2bd6c0f07d90b47b860a55e28fb009643c8a04ef232f8ee4851368b15f7
Sep 05 22:23:46.490 INFO running `"docker" "start" "-a" "f041a2bd6c0f07d90b47b860a55e28fb009643c8a04ef232f8ee4851368b15f7"`
Sep 05 22:23:47.197 INFO kablam! usermod: no changes
Sep 05 22:23:47.228 INFO kablam!     Checking string-interner v0.7.0 (file:///source)
Sep 05 22:23:47.473 INFO kablam! warning: unused import: `Symbol`
Sep 05 22:23:47.474 INFO kablam!  --> src/tests.rs:1:66
Sep 05 22:23:47.474 INFO kablam!   |
Sep 05 22:23:47.474 INFO kablam! 1 | use {DefaultStringInterner, InternalStrRef, StringInterner, Sym, Symbol};
Sep 05 22:23:47.474 INFO kablam!   |                                                                  ^^^^^^
Sep 05 22:23:47.474 INFO kablam!   |
Sep 05 22:23:47.474 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 05 22:23:47.474 INFO kablam! 
Sep 05 22:23:47.901 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Sep 05 22:23:47.903 INFO kablam! su: No module specific data is present
Sep 05 22:23:48.811 INFO running `"docker" "rm" "-f" "f041a2bd6c0f07d90b47b860a55e28fb009643c8a04ef232f8ee4851368b15f7"`
Sep 05 22:23:48.869 INFO blam! f041a2bd6c0f07d90b47b860a55e28fb009643c8a04ef232f8ee4851368b15f7