[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] [stderr] From https://github.com/Floppy/ruby-version-badger
[INFO] [stderr]    20eb7ee..4198149  master     -> master
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4198149aff33b2118408422ba921fc3d04e4050e
[INFO] checking Floppy/ruby-version-badger against master#8ac1525e091d3db28e67adcbbd6db1e1deaa37fb for pr-73323
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFloppy%2Fruby-version-badger" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Floppy/ruby-version-badger on toolchain 8ac1525e091d3db28e67adcbbd6db1e1deaa37fb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "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-7/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" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38fee0e5e054058af9f94c5d062129418dd431c6715b6acedb2fc9fce7c61d7d
[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" "38fee0e5e054058af9f94c5d062129418dd431c6715b6acedb2fc9fce7c61d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38fee0e5e054058af9f94c5d062129418dd431c6715b6acedb2fc9fce7c61d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38fee0e5e054058af9f94c5d062129418dd431c6715b6acedb2fc9fce7c61d7d", kill_on_drop: false }`
[INFO] [stdout] 38fee0e5e054058af9f94c5d062129418dd431c6715b6acedb2fc9fce7c61d7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d38c9a21603c1a292c848e930d8209a13965428b2378aa056b6b2f3bef50e4c7
[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" "d38c9a21603c1a292c848e930d8209a13965428b2378aa056b6b2f3bef50e4c7", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.target
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking sequence_trie v0.3.6
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking base64 v0.12.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]     Checking tracing-core v0.1.11
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking encoding_rs v0.8.23
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking tracing v0.1.16
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking url v2.1.0
[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 hyper v0.10.16
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking mount v0.4.0
[INFO] [stderr]     Checking router v0.6.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking staticfile v0.5.0
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking hyper v0.13.4
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.6
[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: 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 41s
[INFO] running `Command { std: "docker" "inspect" "d38c9a21603c1a292c848e930d8209a13965428b2378aa056b6b2f3bef50e4c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d38c9a21603c1a292c848e930d8209a13965428b2378aa056b6b2f3bef50e4c7", kill_on_drop: false }`
[INFO] [stdout] d38c9a21603c1a292c848e930d8209a13965428b2378aa056b6b2f3bef50e4c7