[INFO] cloning repository https://github.com/krylowicz/tinyvalue
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krylowicz/tinyvalue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrylowicz%2Ftinyvalue", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrylowicz%2Ftinyvalue'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 910c982c0c879b325cffb35f4d48941bcb851a92
[INFO] checking krylowicz/tinyvalue against master#84ec2633defc5c459c682ac0c45efb41715249df for pr-114586
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrylowicz%2Ftinyvalue" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/krylowicz/tinyvalue on toolchain 84ec2633defc5c459c682ac0c45efb41715249df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+84ec2633defc5c459c682ac0c45efb41715249df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/krylowicz/tinyvalue
[INFO] finished tweaking git repo https://github.com/krylowicz/tinyvalue
[INFO] tweaked toml for git repo https://github.com/krylowicz/tinyvalue written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/krylowicz/tinyvalue already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+84ec2633defc5c459c682ac0c45efb41715249df" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+84ec2633defc5c459c682ac0c45efb41715249df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3277d7497b08b8dc40de6974f3e596b5a1261e53d3c48bfbef9d57f50aa79002
[INFO] running `Command { std: "docker" "start" "-a" "3277d7497b08b8dc40de6974f3e596b5a1261e53d3c48bfbef9d57f50aa79002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3277d7497b08b8dc40de6974f3e596b5a1261e53d3c48bfbef9d57f50aa79002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3277d7497b08b8dc40de6974f3e596b5a1261e53d3c48bfbef9d57f50aa79002", kill_on_drop: false }`
[INFO] [stdout] 3277d7497b08b8dc40de6974f3e596b5a1261e53d3c48bfbef9d57f50aa79002
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+84ec2633defc5c459c682ac0c45efb41715249df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efee3ef8d967771ab9423e824207e18ab09a4dc17daf5d32f5232acc0e32402e
[INFO] running `Command { std: "docker" "start" "-a" "efee3ef8d967771ab9423e824207e18ab09a4dc17daf5d32f5232acc0e32402e", kill_on_drop: false }`
[INFO] [stderr]     Checking tinyvalue v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `config_path`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let config_path = cli::parse_flags(&args).unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_config_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Database` is never constructed
[INFO] [stdout]  --> src/database.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Database {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `put`, `get`, and `commit` are never used
[INFO] [stdout]   --> src/database.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Database {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 14 |     pub fn new(path: PathBuf, auto_commit: Option<bool>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn put(&mut self, key: &str, value: &str) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn get(&self, key: &str) -> String {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn commit(&mut self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config_path`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let config_path = cli::parse_flags(&args).unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_config_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "efee3ef8d967771ab9423e824207e18ab09a4dc17daf5d32f5232acc0e32402e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efee3ef8d967771ab9423e824207e18ab09a4dc17daf5d32f5232acc0e32402e", kill_on_drop: false }`
[INFO] [stdout] efee3ef8d967771ab9423e824207e18ab09a4dc17daf5d32f5232acc0e32402e