Dec 02 20:39:06.012 INFO testing regex_dfa-0.5.0 against 1.30.1 for beta-1.31-5
Dec 02 20:39:06.012 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 20:39:06.234 INFO [stdout] 5e0a329610f41d03a8c7a6fc980365fce9d01818a0207d434a036e2f4c7f921c
Dec 02 20:39:06.236 INFO running `"docker" "start" "-a" "5e0a329610f41d03a8c7a6fc980365fce9d01818a0207d434a036e2f4c7f921c"`
Dec 02 20:39:06.600 INFO [stderr] usermod: no changes
Dec 02 20:39:06.627 INFO [stderr] warning: An explicit [[bench]] section is specified in Cargo.toml which currently
Dec 02 20:39:06.627 INFO [stderr] disables Cargo from automatically inferring other benchmark targets.
Dec 02 20:39:06.627 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 02 20:39:06.627 INFO [stderr] files will be included as a benchmark target:
Dec 02 20:39:06.627 INFO [stderr] 
Dec 02 20:39:06.627 INFO [stderr] * /source/benches/bench.rs
Dec 02 20:39:06.627 INFO [stderr] 
Dec 02 20:39:06.627 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 02 20:39:06.627 INFO [stderr] ready to be compiled as a benchmark target today. You can future-proof yourself
Dec 02 20:39:06.627 INFO [stderr] and disable this warning by adding `autobenches = false` to your [package]
Dec 02 20:39:06.627 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 02 20:39:06.627 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 02 20:39:06.627 INFO [stderr] 
Dec 02 20:39:06.627 INFO [stderr] For more information on this warning you can consult
Dec 02 20:39:06.627 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 02 20:39:06.627 INFO [stderr] warning: file found to be present in multiple build targets: /source/src/lib.rs
Dec 02 20:39:06.691 INFO [stderr]    Compiling refinery v0.1.1
Dec 02 20:39:06.691 INFO [stderr]    Compiling regex-syntax v0.2.6
Dec 02 20:39:06.691 INFO [stderr]    Compiling range-map v0.1.5
Dec 02 20:39:09.631 INFO [stderr]    Compiling regex_dfa v0.5.0 (/source)
Dec 02 20:39:10.914 INFO [stderr] warning: unused import: `std::cmp::max`
Dec 02 20:39:10.914 INFO [stderr]   --> src/nfa/has_looks.rs:11:5
Dec 02 20:39:10.914 INFO [stderr]    |
Dec 02 20:39:10.914 INFO [stderr] 11 | use std::cmp::max;
Dec 02 20:39:10.914 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 02 20:39:10.914 INFO [stderr]    |
Dec 02 20:39:10.914 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 02 20:39:10.914 INFO [stderr] 
Dec 02 20:39:15.375 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.75s
Dec 02 20:39:15.380 INFO [stderr] su: No module specific data is present
Dec 02 20:39:15.612 INFO running `"docker" "inspect" "5e0a329610f41d03a8c7a6fc980365fce9d01818a0207d434a036e2f4c7f921c"`
Dec 02 20:39:15.668 INFO running `"docker" "rm" "-f" "5e0a329610f41d03a8c7a6fc980365fce9d01818a0207d434a036e2f4c7f921c"`
Dec 02 20:39:15.732 INFO [stdout] 5e0a329610f41d03a8c7a6fc980365fce9d01818a0207d434a036e2f4c7f921c
Dec 02 20:39:15.736 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 20:39:15.881 INFO [stdout] f2fdfc453f3b56148ee96911f0fb5e809e080655a6138671d8e1413725800a51
Dec 02 20:39:15.884 INFO running `"docker" "start" "-a" "f2fdfc453f3b56148ee96911f0fb5e809e080655a6138671d8e1413725800a51"`
Dec 02 20:39:16.288 INFO [stderr] usermod: no changes
Dec 02 20:39:16.311 INFO [stderr] warning: An explicit [[bench]] section is specified in Cargo.toml which currently
Dec 02 20:39:16.311 INFO [stderr] disables Cargo from automatically inferring other benchmark targets.
Dec 02 20:39:16.311 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 02 20:39:16.311 INFO [stderr] files will be included as a benchmark target:
Dec 02 20:39:16.311 INFO [stderr] 
Dec 02 20:39:16.311 INFO [stderr] * /source/benches/bench.rs
Dec 02 20:39:16.311 INFO [stderr] 
Dec 02 20:39:16.311 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 02 20:39:16.311 INFO [stderr] ready to be compiled as a benchmark target today. You can future-proof yourself
Dec 02 20:39:16.311 INFO [stderr] and disable this warning by adding `autobenches = false` to your [package]
Dec 02 20:39:16.311 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 02 20:39:16.311 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 02 20:39:16.311 INFO [stderr] 
Dec 02 20:39:16.311 INFO [stderr] For more information on this warning you can consult
Dec 02 20:39:16.311 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 02 20:39:16.311 INFO [stderr] warning: file found to be present in multiple build targets: /source/src/lib.rs
Dec 02 20:39:16.388 INFO [stderr]    Compiling serde v0.6.15
Dec 02 20:39:20.085 INFO [stderr]    Compiling serde_json v0.6.1
Dec 02 20:39:21.982 INFO [stderr]    Compiling regex_dfa v0.5.0 (/source)
Dec 02 20:39:24.879 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 20:39:24.879 INFO [stderr]   --> src/lib.rs:61:19
Dec 02 20:39:24.879 INFO [stderr]    |
Dec 02 20:39:24.879 INFO [stderr] 61 | #![cfg_attr(test, feature(test))]
Dec 02 20:39:24.879 INFO [stderr]    |                   ^^^^^^^^^^^^^^
Dec 02 20:39:24.879 INFO [stderr] 
Dec 02 20:39:24.891 INFO [stderr] error: aborting due to previous error
Dec 02 20:39:24.891 INFO [stderr] 
Dec 02 20:39:24.891 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 20:39:24.897 INFO [stderr] error: Could not compile `regex_dfa`.
Dec 02 20:39:24.897 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 20:39:24.902 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 20:39:24.902 INFO [stderr]   --> src/lib.rs:61:19
Dec 02 20:39:24.902 INFO [stderr]    |
Dec 02 20:39:24.902 INFO [stderr] 61 | #![cfg_attr(test, feature(test))]
Dec 02 20:39:24.902 INFO [stderr]    |                   ^^^^^^^^^^^^^^
Dec 02 20:39:24.902 INFO [stderr] 
Dec 02 20:39:24.911 INFO [stderr] error: aborting due to previous error
Dec 02 20:39:24.911 INFO [stderr] 
Dec 02 20:39:24.911 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 20:39:24.918 INFO [stderr] error: Could not compile `regex_dfa`.
Dec 02 20:39:24.918 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 20:39:25.026 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 20:39:25.026 INFO [stderr]   --> benches/bench_default.rs:10:1
Dec 02 20:39:25.026 INFO [stderr]    |
Dec 02 20:39:25.026 INFO [stderr] 10 | #![feature(test)]
Dec 02 20:39:25.026 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 02 20:39:25.026 INFO [stderr] 
Dec 02 20:39:25.027 INFO [stderr] error: aborting due to previous error
Dec 02 20:39:25.027 INFO [stderr] 
Dec 02 20:39:25.027 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 20:39:25.033 INFO [stderr] error: Could not compile `regex_dfa`.
Dec 02 20:39:25.034 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 20:39:34.363 INFO [stderr] error: build failed
Dec 02 20:39:34.365 INFO [stderr] su: No module specific data is present
Dec 02 20:39:35.275 INFO running `"docker" "inspect" "f2fdfc453f3b56148ee96911f0fb5e809e080655a6138671d8e1413725800a51"`
Dec 02 20:39:35.587 INFO running `"docker" "rm" "-f" "f2fdfc453f3b56148ee96911f0fb5e809e080655a6138671d8e1413725800a51"`
Dec 02 20:39:35.818 INFO [stdout] f2fdfc453f3b56148ee96911f0fb5e809e080655a6138671d8e1413725800a51