Nov 01 15:33:13.767 INFO checking string-interner-0.7.0 against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 15:33:13.769 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-2/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +05812fa8c588473f03e3fa7cf59cd84f4f37c715-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 15:33:14.120 INFO blam! 72a60ca3528665483939b29111a297364803fa361c7f31217292584f4f74756b
Nov 01 15:33:14.124 INFO running `"docker" "start" "-a" "72a60ca3528665483939b29111a297364803fa361c7f31217292584f4f74756b"`
Nov 01 15:33:14.852 INFO kablam! usermod: no changes
Nov 01 15:33:14.896 INFO kablam!     Checking string-interner v0.7.0 (/source)
Nov 01 15:33:15.759 INFO kablam! warning: unused import: `Symbol`
Nov 01 15:33:15.759 INFO kablam!  --> src/tests.rs:1:66
Nov 01 15:33:15.759 INFO kablam!   |
Nov 01 15:33:15.760 INFO kablam! 1 | use {DefaultStringInterner, InternalStrRef, StringInterner, Sym, Symbol};
Nov 01 15:33:15.760 INFO kablam!   |                                                                  ^^^^^^
Nov 01 15:33:15.760 INFO kablam!   |
Nov 01 15:33:15.760 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 15:33:15.760 INFO kablam! 
Nov 01 15:33:16.177 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
Nov 01 15:33:16.179 INFO kablam! su: No module specific data is present
Nov 01 15:33:16.482 INFO running `"docker" "rm" "-f" "72a60ca3528665483939b29111a297364803fa361c7f31217292584f4f74756b"`
Nov 01 15:33:16.696 INFO blam! 72a60ca3528665483939b29111a297364803fa361c7f31217292584f4f74756b