[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] 1701f1e650cc1c02994b8281e11e5b6c63eb1125
[INFO] checking Floppy/ruby-version-badger against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFloppy%2Fruby-version-badger" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Floppy/ruby-version-badger on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "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-14/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" "+575650af7d7ca88602df28e39d27bf3e456c306e" "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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded iron v0.6.1
[INFO] [stderr]   Downloaded c2-chacha v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c68410b284edbf84ebad946fdbd9eb6d81d9efba2e7647b70c47ad61ea6b0feb
[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" "c68410b284edbf84ebad946fdbd9eb6d81d9efba2e7647b70c47ad61ea6b0feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c68410b284edbf84ebad946fdbd9eb6d81d9efba2e7647b70c47ad61ea6b0feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c68410b284edbf84ebad946fdbd9eb6d81d9efba2e7647b70c47ad61ea6b0feb", kill_on_drop: false }`
[INFO] [stdout] c68410b284edbf84ebad946fdbd9eb6d81d9efba2e7647b70c47ad61ea6b0feb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 942eb65817ca08ecf948abd54cf9b7ff731bc2d9df208b0e0b1b7a3e59d0a762
[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" "942eb65817ca08ecf948abd54cf9b7ff731bc2d9df208b0e0b1b7a3e59d0a762", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.target
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]     Checking sequence_trie v0.3.6
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking tinyvec v1.1.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking http v0.2.2
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking unicode-normalization v0.1.16
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking tokio v0.2.24
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.2.0
[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 url v2.2.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking hyper v0.10.16
[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 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]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking futures-util v0.3.6
[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 v0.10.10
[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 50s
[INFO] running `Command { std: "docker" "inspect" "942eb65817ca08ecf948abd54cf9b7ff731bc2d9df208b0e0b1b7a3e59d0a762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "942eb65817ca08ecf948abd54cf9b7ff731bc2d9df208b0e0b1b7a3e59d0a762", kill_on_drop: false }`
[INFO] [stdout] 942eb65817ca08ecf948abd54cf9b7ff731bc2d9df208b0e0b1b7a3e59d0a762