Sep 10 08:19:09.601 INFO checking string-interner-0.7.0 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 08:19:09.601 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 08:19:09.601 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-1/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 08:19:09.843 INFO blam! fed811f8af82c1e1dccfb5ae9f084219cdb95e06029ff53b0d2514155920b484
Sep 10 08:19:09.845 INFO running `"docker" "start" "-a" "fed811f8af82c1e1dccfb5ae9f084219cdb95e06029ff53b0d2514155920b484"`
Sep 10 08:19:10.859 INFO kablam! usermod: no changes
Sep 10 08:19:10.884 INFO kablam!     Checking string-interner v0.7.0 (file:///source)
Sep 10 08:19:11.049 INFO kablam! warning: unused import: `Symbol`
Sep 10 08:19:11.049 INFO kablam!  --> src/tests.rs:1:66
Sep 10 08:19:11.049 INFO kablam!   |
Sep 10 08:19:11.050 INFO kablam! 1 | use {DefaultStringInterner, InternalStrRef, StringInterner, Sym, Symbol};
Sep 10 08:19:11.050 INFO kablam!   |                                                                  ^^^^^^
Sep 10 08:19:11.050 INFO kablam!   |
Sep 10 08:19:11.050 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 08:19:11.050 INFO kablam! 
Sep 10 08:19:11.394 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
Sep 10 08:19:11.397 INFO kablam! su: No module specific data is present
Sep 10 08:19:11.808 INFO running `"docker" "rm" "-f" "fed811f8af82c1e1dccfb5ae9f084219cdb95e06029ff53b0d2514155920b484"`
Sep 10 08:19:11.882 INFO blam! fed811f8af82c1e1dccfb5ae9f084219cdb95e06029ff53b0d2514155920b484