Dec 12 09:15:16.434 INFO checking regex_dfa-0.5.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 09:15:16.434 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 12 09:15:16.820 INFO [stdout] 1e14ab146f2db9d359e68a9cd8c861160aec790976571a9db37578bd47ff68b5
Dec 12 09:15:16.825 INFO running `"docker" "start" "-a" "1e14ab146f2db9d359e68a9cd8c861160aec790976571a9db37578bd47ff68b5"`
Dec 12 09:15:17.970 INFO [stderr] usermod: no changes
Dec 12 09:15:18.020 INFO [stderr] warning: An explicit [[bench]] section is specified in Cargo.toml which currently
Dec 12 09:15:18.020 INFO [stderr] disables Cargo from automatically inferring other benchmark targets.
Dec 12 09:15:18.020 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 12 09:15:18.020 INFO [stderr] files will be included as a benchmark target:
Dec 12 09:15:18.020 INFO [stderr] 
Dec 12 09:15:18.020 INFO [stderr] * /source/benches/bench.rs
Dec 12 09:15:18.020 INFO [stderr] 
Dec 12 09:15:18.020 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 12 09:15:18.020 INFO [stderr] ready to be compiled as a benchmark target today. You can future-proof yourself
Dec 12 09:15:18.020 INFO [stderr] and disable this warning by adding `autobenches = false` to your [package]
Dec 12 09:15:18.020 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 12 09:15:18.020 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 12 09:15:18.020 INFO [stderr] 
Dec 12 09:15:18.020 INFO [stderr] For more information on this warning you can consult
Dec 12 09:15:18.020 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 12 09:15:18.020 INFO [stderr] warning: file found to be present in multiple build targets: /source/src/lib.rs
Dec 12 09:15:18.108 INFO [stderr]     Checking regex-syntax v0.2.6
Dec 12 09:15:18.108 INFO [stderr]     Checking refinery v0.1.1
Dec 12 09:15:18.120 INFO [stderr]     Checking range-map v0.1.5
Dec 12 09:15:18.128 INFO [stderr]     Checking serde v0.6.15
Dec 12 09:15:18.128 INFO [stderr]     Checking quickcheck v0.2.27
Dec 12 09:15:20.604 INFO [stderr]     Checking regex_dfa v0.5.0 (/source)
Dec 12 09:15:22.252 INFO [stderr] warning: unused import: `std::cmp::max`
Dec 12 09:15:22.252 INFO [stderr]   --> src/nfa/has_looks.rs:11:5
Dec 12 09:15:22.252 INFO [stderr]    |
Dec 12 09:15:22.252 INFO [stderr] 11 | use std::cmp::max;
Dec 12 09:15:22.252 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 12 09:15:22.252 INFO [stderr]    |
Dec 12 09:15:22.252 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 12 09:15:22.252 INFO [stderr] 
Dec 12 09:15:22.556 INFO [stderr]     Checking serde_json v0.6.1
Dec 12 09:15:29.492 INFO [stderr] warning: unused imports: `TestResult`, `quickcheck`
Dec 12 09:15:29.492 INFO [stderr]    --> src/dfa/prefix_searcher.rs:244:34
Dec 12 09:15:29.492 INFO [stderr]     |
Dec 12 09:15:29.492 INFO [stderr] 244 |     use quickcheck::{QuickCheck, quickcheck, StdGen, TestResult};
Dec 12 09:15:29.492 INFO [stderr]     |                                  ^^^^^^^^^^          ^^^^^^^^^^
Dec 12 09:15:29.492 INFO [stderr]     |
Dec 12 09:15:29.492 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 12 09:15:29.492 INFO [stderr] 
Dec 12 09:15:29.492 INFO [stderr] warning: unused import: `std::cmp::max`
Dec 12 09:15:29.492 INFO [stderr]   --> src/nfa/has_looks.rs:11:5
Dec 12 09:15:29.492 INFO [stderr]    |
Dec 12 09:15:29.492 INFO [stderr] 11 | use std::cmp::max;
Dec 12 09:15:29.492 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 12 09:15:29.492 INFO [stderr] 
Dec 12 09:15:29.560 INFO [stderr] warning: unused imports: `TestResult`, `quickcheck`
Dec 12 09:15:29.560 INFO [stderr]    --> src/dfa/prefix_searcher.rs:244:34
Dec 12 09:15:29.560 INFO [stderr]     |
Dec 12 09:15:29.560 INFO [stderr] 244 |     use quickcheck::{QuickCheck, quickcheck, StdGen, TestResult};
Dec 12 09:15:29.560 INFO [stderr]     |                                  ^^^^^^^^^^          ^^^^^^^^^^
Dec 12 09:15:29.560 INFO [stderr]     |
Dec 12 09:15:29.560 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 12 09:15:29.560 INFO [stderr] 
Dec 12 09:15:29.571 INFO [stderr] warning: unused import: `std::cmp::max`
Dec 12 09:15:29.571 INFO [stderr]   --> src/nfa/has_looks.rs:11:5
Dec 12 09:15:29.571 INFO [stderr]    |
Dec 12 09:15:29.571 INFO [stderr] 11 | use std::cmp::max;
Dec 12 09:15:29.571 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 12 09:15:29.571 INFO [stderr] 
Dec 12 09:15:31.176 INFO [stderr] warning: function is never used: `qc`
Dec 12 09:15:31.176 INFO [stderr]    --> src/dfa/prefix_searcher.rs:249:5
Dec 12 09:15:31.176 INFO [stderr]     |
Dec 12 09:15:31.176 INFO [stderr] 249 |     fn qc(size: usize) -> QuickCheck<StdGen<rand::ThreadRng>> {
Dec 12 09:15:31.176 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 09:15:31.176 INFO [stderr]     |
Dec 12 09:15:31.176 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 09:15:31.176 INFO [stderr] 
Dec 12 09:15:31.232 INFO [stderr] warning: function is never used: `qc`
Dec 12 09:15:31.232 INFO [stderr]    --> src/dfa/prefix_searcher.rs:249:5
Dec 12 09:15:31.232 INFO [stderr]     |
Dec 12 09:15:31.232 INFO [stderr] 249 |     fn qc(size: usize) -> QuickCheck<StdGen<rand::ThreadRng>> {
Dec 12 09:15:31.232 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 09:15:31.232 INFO [stderr]     |
Dec 12 09:15:31.232 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 09:15:31.232 INFO [stderr] 
Dec 12 09:15:34.869 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.88s
Dec 12 09:15:34.878 INFO [stderr] su: No module specific data is present
Dec 12 09:15:35.320 INFO running `"docker" "inspect" "1e14ab146f2db9d359e68a9cd8c861160aec790976571a9db37578bd47ff68b5"`
Dec 12 09:15:35.608 INFO running `"docker" "rm" "-f" "1e14ab146f2db9d359e68a9cd8c861160aec790976571a9db37578bd47ff68b5"`
Dec 12 09:15:35.914 INFO [stdout] 1e14ab146f2db9d359e68a9cd8c861160aec790976571a9db37578bd47ff68b5