Dec 18 07:38:27.993 INFO checking Floppy/ruby-version-badger against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 07:38:27.993 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/Floppy/ruby-version-badger:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 07:38:28.189 INFO [stdout] ba52d44549bffb8bc28363717e85644de93ab401eb66f5db01da79282e5aa02c
Dec 18 07:38:28.191 INFO running `"docker" "start" "-a" "ba52d44549bffb8bc28363717e85644de93ab401eb66f5db01da79282e5aa02c"`
Dec 18 07:38:28.760 INFO [stderr] warning: unused manifest key: package.target
Dec 18 07:38:29.010 INFO [stderr]     Checking tokio-io v0.1.5
Dec 18 07:38:29.011 INFO [stderr]     Checking openssl-sys v0.9.27
Dec 18 07:38:29.011 INFO [stderr]     Checking mio v0.6.13
Dec 18 07:38:29.012 INFO [stderr]     Checking regex v0.2.6
Dec 18 07:38:29.015 INFO [stderr]     Checking mount v0.3.0
Dec 18 07:38:29.015 INFO [stderr]     Checking env_logger v0.3.5
Dec 18 07:38:29.656 INFO [stderr]     Checking openssl v0.9.24
Dec 18 07:38:30.312 INFO [stderr]     Checking staticfile v0.4.0
Dec 18 07:38:31.008 INFO [stderr]     Checking tokio-core v0.1.12
Dec 18 07:38:32.657 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 18 07:38:33.954 INFO [stderr]     Checking native-tls v0.1.5
Dec 18 07:38:34.552 INFO [stderr]     Checking tokio-tls v0.1.4
Dec 18 07:38:35.265 INFO [stderr]     Checking hyper v0.11.21
Dec 18 07:38:39.987 INFO [stderr]     Checking hyper-tls v0.1.2
Dec 18 07:38:40.728 INFO [stderr]     Checking reqwest v0.8.5
Dec 18 07:38:42.429 INFO [stderr]     Checking ruby-version-badger v0.1.1 (/opt/crater/workdir)
Dec 18 07:38:44.005 INFO [stderr] warning: value assigned to `version` is never read
Dec 18 07:38:44.005 INFO [stderr]   --> src/ruby.rs:19:13
Dec 18 07:38:44.005 INFO [stderr]    |
Dec 18 07:38:44.005 INFO [stderr] 19 |     let mut version = "unknown".to_string();
Dec 18 07:38:44.005 INFO [stderr]    |             ^^^^^^^
Dec 18 07:38:44.005 INFO [stderr]    |
Dec 18 07:38:44.005 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 18 07:38:44.005 INFO [stderr] 
Dec 18 07:38:44.005 INFO [stderr] warning: value assigned to `version` is never read
Dec 18 07:38:44.005 INFO [stderr]   --> src/rust.rs:19:13
Dec 18 07:38:44.005 INFO [stderr]    |
Dec 18 07:38:44.005 INFO [stderr] 19 |     let mut version = "unknown".to_string();
Dec 18 07:38:44.005 INFO [stderr]    |             ^^^^^^^
Dec 18 07:38:44.005 INFO [stderr] 
Dec 18 07:38:44.005 INFO [stderr] warning: value assigned to `version` is never read
Dec 18 07:38:44.005 INFO [stderr]   --> src/node.rs:18:13
Dec 18 07:38:44.005 INFO [stderr]    |
Dec 18 07:38:44.005 INFO [stderr] 18 |     let mut version = "unknown".to_string();
Dec 18 07:38:44.005 INFO [stderr]    |             ^^^^^^^
Dec 18 07:38:44.005 INFO [stderr] 
Dec 18 07:38:44.050 INFO [stderr] warning: function is never used: `language`
Dec 18 07:38:44.050 INFO [stderr]   --> src/config.rs:11:1
Dec 18 07:38:44.050 INFO [stderr]    |
Dec 18 07:38:44.050 INFO [stderr] 11 | pub fn language(lang: String) -> Result<yaml::Yaml, Error> {
Dec 18 07:38:44.050 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:38:44.051 INFO [stderr]    |
Dec 18 07:38:44.051 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 07:38:44.051 INFO [stderr] 
Dec 18 07:38:44.051 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:38:44.051 INFO [stderr]   --> src/main.rs:20:5
Dec 18 07:38:44.051 INFO [stderr]    |
Dec 18 07:38:44.051 INFO [stderr] 20 |     env_logger::init();
Dec 18 07:38:44.051 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 18 07:38:44.051 INFO [stderr]    |
Dec 18 07:38:44.051 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 07:38:44.051 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:38:44.051 INFO [stderr] 
Dec 18 07:38:44.139 INFO [stderr] warning: value assigned to `version` is never read
Dec 18 07:38:44.139 INFO [stderr]   --> src/ruby.rs:19:13
Dec 18 07:38:44.139 INFO [stderr]    |
Dec 18 07:38:44.139 INFO [stderr] 19 |     let mut version = "unknown".to_string();
Dec 18 07:38:44.139 INFO [stderr]    |             ^^^^^^^
Dec 18 07:38:44.140 INFO [stderr]    |
Dec 18 07:38:44.140 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 18 07:38:44.140 INFO [stderr] 
Dec 18 07:38:44.140 INFO [stderr] warning: value assigned to `version` is never read
Dec 18 07:38:44.141 INFO [stderr]   --> src/rust.rs:19:13
Dec 18 07:38:44.141 INFO [stderr]    |
Dec 18 07:38:44.141 INFO [stderr] 19 |     let mut version = "unknown".to_string();
Dec 18 07:38:44.141 INFO [stderr]    |             ^^^^^^^
Dec 18 07:38:44.141 INFO [stderr] 
Dec 18 07:38:44.141 INFO [stderr] warning: value assigned to `version` is never read
Dec 18 07:38:44.141 INFO [stderr]   --> src/node.rs:18:13
Dec 18 07:38:44.141 INFO [stderr]    |
Dec 18 07:38:44.141 INFO [stderr] 18 |     let mut version = "unknown".to_string();
Dec 18 07:38:44.141 INFO [stderr]    |             ^^^^^^^
Dec 18 07:38:44.143 INFO [stderr] 
Dec 18 07:38:44.203 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:38:44.203 INFO [stderr]   --> src/main.rs:20:5
Dec 18 07:38:44.203 INFO [stderr]    |
Dec 18 07:38:44.203 INFO [stderr] 20 |     env_logger::init();
Dec 18 07:38:44.203 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 18 07:38:44.203 INFO [stderr]    |
Dec 18 07:38:44.203 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 07:38:44.203 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:38:44.203 INFO [stderr] 
Dec 18 07:38:44.234 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.48s
Dec 18 07:38:44.626 INFO running `"docker" "inspect" "ba52d44549bffb8bc28363717e85644de93ab401eb66f5db01da79282e5aa02c"`
Dec 18 07:38:44.803 INFO running `"docker" "rm" "-f" "ba52d44549bffb8bc28363717e85644de93ab401eb66f5db01da79282e5aa02c"`
Dec 18 07:38:44.958 INFO [stdout] ba52d44549bffb8bc28363717e85644de93ab401eb66f5db01da79282e5aa02c