Sep 17 16:32:24.517 INFO checking string-interner-0.7.0 against master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690 for pr-54033
Sep 17 16:32:24.517 INFO running: cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets
Sep 17 16:32:24.517 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54033/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-2/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/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 +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 16:32:24.659 INFO blam! 7e2b8c9d2f149600889d50fffa8308bde4dd633f501efb22704048bfa3075b83
Sep 17 16:32:24.661 INFO running `"docker" "start" "-a" "7e2b8c9d2f149600889d50fffa8308bde4dd633f501efb22704048bfa3075b83"`
Sep 17 16:32:25.652 INFO kablam! usermod: no changes
Sep 17 16:32:25.696 INFO kablam!     Checking string-interner v0.7.0 (/source)
Sep 17 16:32:25.976 INFO kablam! warning: unused import: `Symbol`
Sep 17 16:32:25.976 INFO kablam!  --> src/tests.rs:1:66
Sep 17 16:32:25.976 INFO kablam!   |
Sep 17 16:32:25.976 INFO kablam! 1 | use {DefaultStringInterner, InternalStrRef, StringInterner, Sym, Symbol};
Sep 17 16:32:25.976 INFO kablam!   |                                                                  ^^^^^^
Sep 17 16:32:25.976 INFO kablam!   |
Sep 17 16:32:25.976 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 17 16:32:25.976 INFO kablam! 
Sep 17 16:32:26.396 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
Sep 17 16:32:26.396 INFO kablam! su: No module specific data is present
Sep 17 16:32:26.873 INFO running `"docker" "rm" "-f" "7e2b8c9d2f149600889d50fffa8308bde4dd633f501efb22704048bfa3075b83"`
Sep 17 16:32:26.940 INFO blam! 7e2b8c9d2f149600889d50fffa8308bde4dd633f501efb22704048bfa3075b83