Oct 13 10:10:05.541 INFO checking regex_dfa-0.5.0 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 10:10:05.541 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 10:10:05.920 INFO blam! d2a27ea184ea2a31564dd17b9876c99c1c37aa8e446f9a71b3b6a095c3caaabf
Oct 13 10:10:05.922 INFO running `"docker" "start" "-a" "d2a27ea184ea2a31564dd17b9876c99c1c37aa8e446f9a71b3b6a095c3caaabf"`
Oct 13 10:10:07.020 INFO kablam! usermod: no changes
Oct 13 10:10:07.076 INFO kablam! warning: An explicit [[bench]] section is specified in Cargo.toml which currently
Oct 13 10:10:07.076 INFO kablam! disables Cargo from automatically inferring other benchmark targets.
Oct 13 10:10:07.076 INFO kablam! This inference behavior will change in the Rust 2018 edition and the following
Oct 13 10:10:07.076 INFO kablam! files will be included as a benchmark target:
Oct 13 10:10:07.076 INFO kablam! 
Oct 13 10:10:07.076 INFO kablam! * /source/benches/bench.rs
Oct 13 10:10:07.076 INFO kablam! 
Oct 13 10:10:07.076 INFO kablam! This is likely to break cargo build or cargo test as these files may not be
Oct 13 10:10:07.076 INFO kablam! ready to be compiled as a benchmark target today. You can future-proof yourself
Oct 13 10:10:07.076 INFO kablam! and disable this warning by adding `autobenches = false` to your [package]
Oct 13 10:10:07.076 INFO kablam! section. You may also move the files to a location where Cargo would not
Oct 13 10:10:07.076 INFO kablam! automatically infer them to be a target, such as in subfolders.
Oct 13 10:10:07.076 INFO kablam! 
Oct 13 10:10:07.076 INFO kablam! For more information on this warning you can consult
Oct 13 10:10:07.076 INFO kablam! https://github.com/rust-lang/cargo/issues/5330
Oct 13 10:10:07.076 INFO kablam! warning: file found to be present in multiple build targets: /source/src/lib.rs
Oct 13 10:10:07.156 INFO kablam!     Checking regex-syntax v0.2.6
Oct 13 10:10:07.157 INFO kablam!     Checking refinery v0.1.1
Oct 13 10:10:07.185 INFO kablam!     Checking range-map v0.1.5
Oct 13 10:10:07.189 INFO kablam!     Checking serde v0.6.15
Oct 13 10:10:09.864 INFO kablam!     Checking regex_dfa v0.5.0 (/source)
Oct 13 10:10:11.604 INFO kablam! warning: unused import: `std::cmp::max`
Oct 13 10:10:11.605 INFO kablam!   --> src/nfa/has_looks.rs:11:5
Oct 13 10:10:11.605 INFO kablam!    |
Oct 13 10:10:11.605 INFO kablam! 11 | use std::cmp::max;
Oct 13 10:10:11.606 INFO kablam!    |     ^^^^^^^^^^^^^
Oct 13 10:10:11.606 INFO kablam!    |
Oct 13 10:10:11.606 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 13 10:10:11.607 INFO kablam! 
Oct 13 10:10:12.989 INFO kablam!     Checking serde_json v0.6.1
Oct 13 10:10:18.295 INFO kablam! warning: unused imports: `TestResult`, `quickcheck`
Oct 13 10:10:18.295 INFO kablam!    --> src/dfa/prefix_searcher.rs:244:34
Oct 13 10:10:18.295 INFO kablam!     |
Oct 13 10:10:18.295 INFO kablam! 244 |     use quickcheck::{QuickCheck, quickcheck, StdGen, TestResult};
Oct 13 10:10:18.295 INFO kablam!     |                                  ^^^^^^^^^^          ^^^^^^^^^^
Oct 13 10:10:18.295 INFO kablam!     |
Oct 13 10:10:18.295 INFO kablam!     = note: #[warn(unused_imports)] on by default
Oct 13 10:10:18.295 INFO kablam! 
Oct 13 10:10:18.295 INFO kablam! warning: unused import: `std::cmp::max`
Oct 13 10:10:18.295 INFO kablam!   --> src/nfa/has_looks.rs:11:5
Oct 13 10:10:18.295 INFO kablam!    |
Oct 13 10:10:18.295 INFO kablam! 11 | use std::cmp::max;
Oct 13 10:10:18.295 INFO kablam!    |     ^^^^^^^^^^^^^
Oct 13 10:10:18.295 INFO kablam! 
Oct 13 10:10:18.760 INFO kablam! warning: unused imports: `TestResult`, `quickcheck`
Oct 13 10:10:18.760 INFO kablam!    --> src/dfa/prefix_searcher.rs:244:34
Oct 13 10:10:18.760 INFO kablam!     |
Oct 13 10:10:18.760 INFO kablam! 244 |     use quickcheck::{QuickCheck, quickcheck, StdGen, TestResult};
Oct 13 10:10:18.760 INFO kablam!     |                                  ^^^^^^^^^^          ^^^^^^^^^^
Oct 13 10:10:18.760 INFO kablam!     |
Oct 13 10:10:18.760 INFO kablam!     = note: #[warn(unused_imports)] on by default
Oct 13 10:10:18.760 INFO kablam! 
Oct 13 10:10:18.764 INFO kablam! warning: unused import: `std::cmp::max`
Oct 13 10:10:18.764 INFO kablam!   --> src/nfa/has_looks.rs:11:5
Oct 13 10:10:18.764 INFO kablam!    |
Oct 13 10:10:18.764 INFO kablam! 11 | use std::cmp::max;
Oct 13 10:10:18.764 INFO kablam!    |     ^^^^^^^^^^^^^
Oct 13 10:10:18.764 INFO kablam! 
Oct 13 10:10:20.596 INFO kablam! warning: function is never used: `qc`
Oct 13 10:10:20.596 INFO kablam!    --> src/dfa/prefix_searcher.rs:249:5
Oct 13 10:10:20.596 INFO kablam!     |
Oct 13 10:10:20.596 INFO kablam! 249 |     fn qc(size: usize) -> QuickCheck<StdGen<rand::ThreadRng>> {
Oct 13 10:10:20.596 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 10:10:20.596 INFO kablam!     |
Oct 13 10:10:20.596 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 13 10:10:20.596 INFO kablam! 
Oct 13 10:10:21.440 INFO kablam! warning: function is never used: `qc`
Oct 13 10:10:21.440 INFO kablam!    --> src/dfa/prefix_searcher.rs:249:5
Oct 13 10:10:21.440 INFO kablam!     |
Oct 13 10:10:21.440 INFO kablam! 249 |     fn qc(size: usize) -> QuickCheck<StdGen<rand::ThreadRng>> {
Oct 13 10:10:21.440 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 10:10:21.440 INFO kablam!     |
Oct 13 10:10:21.440 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 13 10:10:21.440 INFO kablam! 
Oct 13 10:10:25.829 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 18.79s
Oct 13 10:10:25.855 INFO kablam! su: No module specific data is present
Oct 13 10:10:26.601 INFO running `"docker" "rm" "-f" "d2a27ea184ea2a31564dd17b9876c99c1c37aa8e446f9a71b3b6a095c3caaabf"`
Oct 13 10:10:26.938 INFO blam! d2a27ea184ea2a31564dd17b9876c99c1c37aa8e446f9a71b3b6a095c3caaabf