[INFO] cloning repository https://github.com/Floppy/ruby-version-badger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Floppy/ruby-version-badger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFloppy%2Fruby-version-badger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFloppy%2Fruby-version-badger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1dc1a4b629984c7da53a32ef79f19d5f9880c9c2
[INFO] checking Floppy/ruby-version-badger against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFloppy%2Fruby-version-badger" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Floppy/ruby-version-badger on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Floppy/ruby-version-badger
[INFO] finished tweaking git repo https://github.com/Floppy/ruby-version-badger
[INFO] tweaked toml for git repo https://github.com/Floppy/ruby-version-badger written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Floppy/ruby-version-badger already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.target
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1acfb01cccf56532e124f7e2147d7c7a1b174a1700ee3e65c34d480ba2e9e9b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a1acfb01cccf56532e124f7e2147d7c7a1b174a1700ee3e65c34d480ba2e9e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1acfb01cccf56532e124f7e2147d7c7a1b174a1700ee3e65c34d480ba2e9e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1acfb01cccf56532e124f7e2147d7c7a1b174a1700ee3e65c34d480ba2e9e9b", kill_on_drop: false }`
[INFO] [stdout] a1acfb01cccf56532e124f7e2147d7c7a1b174a1700ee3e65c34d480ba2e9e9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f34d0f79cfb129f3de0a751b41ff2a43764a5a70ac9531daa433ef0cb1fd41b6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f34d0f79cfb129f3de0a751b41ff2a43764a5a70ac9531daa433ef0cb1fd41b6", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.target
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.31
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking sequence_trie v0.3.6
[INFO] [stderr]     Checking mime v0.3.14
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling openssl-sys v0.9.59
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking tokio v0.2.24
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking mount v0.4.0
[INFO] [stderr]     Checking router v0.6.0
[INFO] [stderr]     Checking staticfile v0.5.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.13.4
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.9
[INFO] [stderr]     Checking ruby-version-badger v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `version` is never read
[INFO] [stdout]   --> src/ruby.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut version = "unknown".to_string();
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `version` is never read
[INFO] [stdout]   --> src/rust.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut version = "unknown".to_string();
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `version` is never read
[INFO] [stdout]   --> src/node.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut version = "unknown".to_string();
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `language`
[INFO] [stdout]   --> src/config.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn language(lang: String) -> Result<yaml::Yaml, Error> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `version` is never read
[INFO] [stdout]   --> src/ruby.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut version = "unknown".to_string();
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `version` is never read
[INFO] [stdout]   --> src/rust.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut version = "unknown".to_string();
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `version` is never read
[INFO] [stdout]   --> src/node.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut version = "unknown".to_string();
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 30s
[INFO] running `Command { std: "docker" "inspect" "f34d0f79cfb129f3de0a751b41ff2a43764a5a70ac9531daa433ef0cb1fd41b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f34d0f79cfb129f3de0a751b41ff2a43764a5a70ac9531daa433ef0cb1fd41b6", kill_on_drop: false }`
[INFO] [stdout] f34d0f79cfb129f3de0a751b41ff2a43764a5a70ac9531daa433ef0cb1fd41b6