[INFO] cloning repository https://github.com/0xkarfue/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xkarfue/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkarfue%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkarfue%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db6b444757c2b6a184f814e8e901cfbeec4028e9
[INFO] checking 0xkarfue/learn-rust against master#d5419f1e97b90741d51841f800d3c697c662567d for pr-147565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkarfue%2Flearn-rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0xkarfue/learn-rust
[INFO] finished tweaking git repo https://github.com/0xkarfue/learn-rust
[INFO] tweaked toml for git repo https://github.com/0xkarfue/learn-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0xkarfue/learn-rust on toolchain d5419f1e97b90741d51841f800d3c697c662567d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d5419f1e97b90741d51841f800d3c697c662567d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0xkarfue/learn-rust 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" "+d5419f1e97b90741d51841f800d3c697c662567d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d5419f1e97b90741d51841f800d3c697c662567d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4dce1295e9232b1413011df5bd17731790386ccab0caa25d56cfbb30d49f37fe
[INFO] running `Command { std: "docker" "start" "-a" "4dce1295e9232b1413011df5bd17731790386ccab0caa25d56cfbb30d49f37fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dce1295e9232b1413011df5bd17731790386ccab0caa25d56cfbb30d49f37fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dce1295e9232b1413011df5bd17731790386ccab0caa25d56cfbb30d49f37fe", kill_on_drop: false }`
[INFO] [stdout] 4dce1295e9232b1413011df5bd17731790386ccab0caa25d56cfbb30d49f37fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d5419f1e97b90741d51841f800d3c697c662567d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] def406ce8586e4302e0426ccd89496fcd058e66029b08300b6b0c493ef472d7d
[INFO] running `Command { std: "docker" "start" "-a" "def406ce8586e4302e0426ccd89496fcd058e66029b08300b6b0c493ef472d7d", kill_on_drop: false }`
[INFO] [stderr]     Checking kvstore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `database`
[INFO] [stdout]   --> src/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let database = Database::new();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_database`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `map` is never read
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Database {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 33 |     // map: std::collections::HashMap,
[INFO] [stdout] 34 |     map: HashMap<String, String>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `database`
[INFO] [stdout]   --> src/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let database = Database::new();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_database`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `map` is never read
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Database {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 33 |     // map: std::collections::HashMap,
[INFO] [stdout] 34 |     map: HashMap<String, String>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "def406ce8586e4302e0426ccd89496fcd058e66029b08300b6b0c493ef472d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def406ce8586e4302e0426ccd89496fcd058e66029b08300b6b0c493ef472d7d", kill_on_drop: false }`
[INFO] [stdout] def406ce8586e4302e0426ccd89496fcd058e66029b08300b6b0c493ef472d7d
