thread 'main' panicked at 'index out of bounds: the len is 0 but the index is 0', /build/rust/src/rustc-1.33.0-src/src/libcore/slice/mod.rs:2455:10 note: Run with `RUST_BACKTRACE=1` environment variable to display a backtrace. fish: Job 3, “/usr/bin/exa -l” terminated by signal SIGABRT (Abort) thread 'main' panicked at 'index out of bounds: the len is 0 but the index is 0', /build/rust/src/rustc-1.33.0-src/src/libcore/slice/mod.rs:2455:10 stack backtrace: 0: 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: __libc_start_main 14: fish: “env RUST_BACKTRACE=1 /usr/bin/exa -l” terminated by signal SIGABRT (Abort)