Dec 05 02:30:46.017 INFO checking Floppy/ruby-version-badger against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 02:30:46.017 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 02:30:46.241 INFO [stdout] 2a26f34fc070dd29d67e87f6642e07a11046bd22ce261403b91498e63109c5a9
Dec 05 02:30:46.244 INFO running `"docker" "start" "-a" "2a26f34fc070dd29d67e87f6642e07a11046bd22ce261403b91498e63109c5a9"`
Dec 05 02:30:46.974 INFO [stderr] usermod: no changes
Dec 05 02:30:47.019 INFO [stderr] warning: unused manifest key: package.target
Dec 05 02:30:47.315 INFO [stderr]     Checking memchr v0.1.11
Dec 05 02:30:47.351 INFO [stderr]     Checking tokio-io v0.1.5
Dec 05 02:30:47.351 INFO [stderr]     Checking openssl-sys v0.9.27
Dec 05 02:30:47.351 INFO [stderr]     Checking mio v0.6.13
Dec 05 02:30:47.351 INFO [stderr]     Checking thread-id v2.0.0
Dec 05 02:30:47.352 INFO [stderr]     Checking mount v0.3.0
Dec 05 02:30:49.610 INFO [stderr]     Checking thread_local v0.2.7
Dec 05 02:30:49.735 INFO [stderr]     Checking aho-corasick v0.5.3
Dec 05 02:30:51.075 INFO [stderr]     Checking openssl v0.9.24
Dec 05 02:30:52.087 INFO [stderr]     Checking regex v0.1.80
Dec 05 02:30:53.763 INFO [stderr]     Checking tokio-core v0.1.12
Dec 05 02:30:54.787 INFO [stderr]     Checking staticfile v0.4.0
Dec 05 02:30:58.391 INFO [stderr]     Checking env_logger v0.3.5
Dec 05 02:30:58.947 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 05 02:30:59.479 INFO [stderr]     Checking native-tls v0.1.5
Dec 05 02:31:01.495 INFO [stderr]     Checking tokio-tls v0.1.4
Dec 05 02:31:04.478 INFO [stderr]     Checking hyper v0.11.21
Dec 05 02:31:10.747 INFO [stderr]     Checking hyper-tls v0.1.2
Dec 05 02:31:13.108 INFO [stderr]     Checking reqwest v0.8.5
Dec 05 02:31:17.264 INFO [stderr]     Checking ruby-version-badger v0.1.1 (/source)
Dec 05 02:31:24.127 INFO [stderr] warning: value assigned to `version` is never read
Dec 05 02:31:24.127 INFO [stderr]   --> src/ruby.rs:19:13
Dec 05 02:31:24.127 INFO [stderr]    |
Dec 05 02:31:24.127 INFO [stderr] 19 |     let mut version = "unknown".to_string();
Dec 05 02:31:24.127 INFO [stderr]    |             ^^^^^^^
Dec 05 02:31:24.127 INFO [stderr]    |
Dec 05 02:31:24.127 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 05 02:31:24.127 INFO [stderr] 
Dec 05 02:31:24.127 INFO [stderr] warning: value assigned to `version` is never read
Dec 05 02:31:24.127 INFO [stderr]   --> src/rust.rs:19:13
Dec 05 02:31:24.127 INFO [stderr]    |
Dec 05 02:31:24.127 INFO [stderr] 19 |     let mut version = "unknown".to_string();
Dec 05 02:31:24.127 INFO [stderr]    |             ^^^^^^^
Dec 05 02:31:24.127 INFO [stderr] 
Dec 05 02:31:24.127 INFO [stderr] warning: value assigned to `version` is never read
Dec 05 02:31:24.127 INFO [stderr]   --> src/node.rs:18:13
Dec 05 02:31:24.127 INFO [stderr]    |
Dec 05 02:31:24.127 INFO [stderr] 18 |     let mut version = "unknown".to_string();
Dec 05 02:31:24.127 INFO [stderr]    |             ^^^^^^^
Dec 05 02:31:24.127 INFO [stderr] 
Dec 05 02:31:24.206 INFO [stderr] warning: function is never used: `language`
Dec 05 02:31:24.206 INFO [stderr]   --> src/config.rs:11:1
Dec 05 02:31:24.206 INFO [stderr]    |
Dec 05 02:31:24.206 INFO [stderr] 11 | pub fn language(lang: String) -> Result<yaml::Yaml, Error> {
Dec 05 02:31:24.206 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:31:24.206 INFO [stderr]    |
Dec 05 02:31:24.206 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 02:31:24.206 INFO [stderr] 
Dec 05 02:31:24.219 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:31:24.219 INFO [stderr]   --> src/main.rs:20:5
Dec 05 02:31:24.219 INFO [stderr]    |
Dec 05 02:31:24.219 INFO [stderr] 20 |     env_logger::init();
Dec 05 02:31:24.219 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 02:31:24.219 INFO [stderr]    |
Dec 05 02:31:24.219 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 02:31:24.219 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:31:24.219 INFO [stderr] 
Dec 05 02:31:24.591 INFO [stderr] warning: value assigned to `version` is never read
Dec 05 02:31:24.591 INFO [stderr]   --> src/ruby.rs:19:13
Dec 05 02:31:24.591 INFO [stderr]    |
Dec 05 02:31:24.591 INFO [stderr] 19 |     let mut version = "unknown".to_string();
Dec 05 02:31:24.591 INFO [stderr]    |             ^^^^^^^
Dec 05 02:31:24.591 INFO [stderr]    |
Dec 05 02:31:24.591 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 05 02:31:24.591 INFO [stderr] 
Dec 05 02:31:24.591 INFO [stderr] warning: value assigned to `version` is never read
Dec 05 02:31:24.591 INFO [stderr]   --> src/rust.rs:19:13
Dec 05 02:31:24.591 INFO [stderr]    |
Dec 05 02:31:24.591 INFO [stderr] 19 |     let mut version = "unknown".to_string();
Dec 05 02:31:24.591 INFO [stderr]    |             ^^^^^^^
Dec 05 02:31:24.591 INFO [stderr] 
Dec 05 02:31:24.591 INFO [stderr] warning: value assigned to `version` is never read
Dec 05 02:31:24.591 INFO [stderr]   --> src/node.rs:18:13
Dec 05 02:31:24.591 INFO [stderr]    |
Dec 05 02:31:24.591 INFO [stderr] 18 |     let mut version = "unknown".to_string();
Dec 05 02:31:24.591 INFO [stderr]    |             ^^^^^^^
Dec 05 02:31:24.591 INFO [stderr] 
Dec 05 02:31:24.651 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:31:24.651 INFO [stderr]   --> src/main.rs:20:5
Dec 05 02:31:24.651 INFO [stderr]    |
Dec 05 02:31:24.651 INFO [stderr] 20 |     env_logger::init();
Dec 05 02:31:24.651 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 02:31:24.651 INFO [stderr]    |
Dec 05 02:31:24.651 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 02:31:24.651 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:31:24.651 INFO [stderr] 
Dec 05 02:31:24.715 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.71s
Dec 05 02:31:24.733 INFO [stderr] su: No module specific data is present
Dec 05 02:31:25.350 INFO running `"docker" "inspect" "2a26f34fc070dd29d67e87f6642e07a11046bd22ce261403b91498e63109c5a9"`
Dec 05 02:31:25.655 INFO running `"docker" "rm" "-f" "2a26f34fc070dd29d67e87f6642e07a11046bd22ce261403b91498e63109c5a9"`
Dec 05 02:31:25.884 INFO [stdout] 2a26f34fc070dd29d67e87f6642e07a11046bd22ce261403b91498e63109c5a9