[INFO] updating cached repository Floppy/ruby-version-badger
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Floppy/ruby-version-badger
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Floppy/ruby-version-badger" "work/ex/beta-1.37-6/sources/1.36.0/gh/Floppy/ruby-version-badger"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Floppy/ruby-version-badger'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Floppy/ruby-version-badger" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Floppy/ruby-version-badger"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Floppy/ruby-version-badger'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e94cf103ecb5c2a7c3942c2c94d819402f3b1c8d
[INFO] sha for GitHub repo Floppy/ruby-version-badger: e94cf103ecb5c2a7c3942c2c94d819402f3b1c8d
[INFO] validating manifest of Floppy/ruby-version-badger on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Floppy/ruby-version-badger on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Floppy/ruby-version-badger
[INFO] finished frobbing Floppy/ruby-version-badger
[INFO] frobbed toml for Floppy/ruby-version-badger written to work/ex/beta-1.37-6/sources/1.36.0/gh/Floppy/ruby-version-badger/Cargo.toml
[INFO] started frobbing Floppy/ruby-version-badger
[INFO] finished frobbing Floppy/ruby-version-badger
[INFO] frobbed toml for Floppy/ruby-version-badger written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Floppy/ruby-version-badger/Cargo.toml
[INFO] crate Floppy/ruby-version-badger already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Floppy/ruby-version-badger against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 0ed93f79d76a0e23558f002f0a11d1adfaeac08d835a3b5ca99f829b03bf77d3
[INFO] running `"docker" "start" "-a" "0ed93f79d76a0e23558f002f0a11d1adfaeac08d835a3b5ca99f829b03bf77d3"`
[INFO] [stderr] warning: unused manifest key: package.target
[INFO] [stderr]    Compiling cc v1.0.5
[INFO] [stderr]    Compiling libc v0.2.39
[INFO] [stderr]    Compiling futures v0.1.18
[INFO] [stderr]    Compiling scoped-tls v0.1.1
[INFO] [stderr]    Compiling sequence_trie v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.1
[INFO] [stderr]    Compiling encoding_rs v0.7.2
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]    Compiling yaml-rust v0.4.0
[INFO] [stderr]    Compiling serde_urlencoded v0.5.1
[INFO] [stderr]    Compiling libflate v0.1.14
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling serde_json v1.0.10
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling mio v0.6.13
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling hyper v0.10.13
[INFO] [stderr]    Compiling openssl-sys v0.9.27
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling relay v0.1.1
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling tokio-io v0.1.5
[INFO] [stderr]    Compiling regex v0.2.6
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.4
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]    Compiling tokio-core v0.1.12
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling iron v0.5.1
[INFO] [stderr]    Compiling native-tls v0.1.5
[INFO] [stderr]    Compiling tokio-tls v0.1.4
[INFO] [stderr]    Compiling hyper v0.11.21
[INFO] [stderr]    Compiling mount v0.3.0
[INFO] [stderr]    Compiling router v0.5.1
[INFO] [stderr]    Compiling staticfile v0.4.0
[INFO] [stderr]    Compiling hyper-tls v0.1.2
[INFO] [stderr]    Compiling reqwest v0.8.5
[INFO] [stderr]    Compiling ruby-version-badger v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `version` is never read
[INFO] [stderr]   --> src/ruby.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut version = "unknown".to_string();
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `version` is never read
[INFO] [stderr]   --> src/rust.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut version = "unknown".to_string();
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `version` is never read
[INFO] [stderr]   --> src/node.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut version = "unknown".to_string();
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `language`
[INFO] [stderr]   --> src/config.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn language(lang: String) -> Result<yaml::Yaml, Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     env_logger::init();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 41s
[INFO] running `"docker" "inspect" "0ed93f79d76a0e23558f002f0a11d1adfaeac08d835a3b5ca99f829b03bf77d3"`
[INFO] running `"docker" "rm" "-f" "0ed93f79d76a0e23558f002f0a11d1adfaeac08d835a3b5ca99f829b03bf77d3"`
[INFO] [stdout] 0ed93f79d76a0e23558f002f0a11d1adfaeac08d835a3b5ca99f829b03bf77d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 81789e4a5066a5eaecdc7f069e51bb39f3823035daa5af140c068854f95878a7
[INFO] running `"docker" "start" "-a" "81789e4a5066a5eaecdc7f069e51bb39f3823035daa5af140c068854f95878a7"`
[INFO] [stderr] warning: unused manifest key: package.target
[INFO] [stderr]    Compiling ruby-version-badger v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `version` is never read
[INFO] [stderr]   --> src/ruby.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut version = "unknown".to_string();
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `version` is never read
[INFO] [stderr]   --> src/rust.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut version = "unknown".to_string();
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `version` is never read
[INFO] [stderr]   --> src/node.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut version = "unknown".to_string();
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     env_logger::init();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.60s
[INFO] running `"docker" "inspect" "81789e4a5066a5eaecdc7f069e51bb39f3823035daa5af140c068854f95878a7"`
[INFO] running `"docker" "rm" "-f" "81789e4a5066a5eaecdc7f069e51bb39f3823035daa5af140c068854f95878a7"`
[INFO] [stdout] 81789e4a5066a5eaecdc7f069e51bb39f3823035daa5af140c068854f95878a7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 8076f27542f98aeabe171863bfa41a9c97d0b97e6cc0b3e71dc312eaadd3eb0b
[INFO] running `"docker" "start" "-a" "8076f27542f98aeabe171863bfa41a9c97d0b97e6cc0b3e71dc312eaadd3eb0b"`
[INFO] [stderr] warning: unused manifest key: package.target
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ruby_version_badger-d7745befc18cee91
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test config::tests::default_to_port_3k ... ok
[INFO] [stdout] test ruby::tests::deprecated_versions_are_red ... ok
[INFO] [stdout] test ruby::tests::current_versions_are_green ... ok
[INFO] [stdout] test config::tests::uses_port_from_env ... ok
[INFO] [stdout] test ruby::tests::ending_versions_are_orange ... ok
[INFO] [stdout] test config::tests::read_language_config_file ... ok
[INFO] [stdout] test ruby::tests::supported_versions_are_yellow ... ok
[INFO] [stdout] test rust::tests::deprecated_versions_are_red ... ok
[INFO] [stdout] test rust::tests::current_versions_are_green ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8076f27542f98aeabe171863bfa41a9c97d0b97e6cc0b3e71dc312eaadd3eb0b"`
[INFO] running `"docker" "rm" "-f" "8076f27542f98aeabe171863bfa41a9c97d0b97e6cc0b3e71dc312eaadd3eb0b"`
[INFO] [stdout] 8076f27542f98aeabe171863bfa41a9c97d0b97e6cc0b3e71dc312eaadd3eb0b