[INFO] updating cached repository ElectricCoffee/city_generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ElectricCoffee/city_generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ElectricCoffee/city_generator" "work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/ElectricCoffee/city_generator"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/ElectricCoffee/city_generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ElectricCoffee/city_generator" "work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/ElectricCoffee/city_generator"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/ElectricCoffee/city_generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cf2a31e74bc5cf52d8d5c9907e5ac79bf1799e4c
[INFO] sha for GitHub repo ElectricCoffee/city_generator: cf2a31e74bc5cf52d8d5c9907e5ac79bf1799e4c
[INFO] validating manifest of ElectricCoffee/city_generator on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ElectricCoffee/city_generator on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ElectricCoffee/city_generator
[INFO] finished frobbing ElectricCoffee/city_generator
[INFO] frobbed toml for ElectricCoffee/city_generator written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/ElectricCoffee/city_generator/Cargo.toml
[INFO] started frobbing ElectricCoffee/city_generator
[INFO] finished frobbing ElectricCoffee/city_generator
[INFO] frobbed toml for ElectricCoffee/city_generator written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/ElectricCoffee/city_generator/Cargo.toml
[INFO] crate ElectricCoffee/city_generator has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ElectricCoffee/city_generator against master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039 for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-0/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/ElectricCoffee/city_generator:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cdeb284f2e8425713969b290d3f6d1f56cc8c6db5c78b8cadde4bb3df9bb1034
[INFO] running `"docker" "start" "-a" "cdeb284f2e8425713969b290d3f6d1f56cc8c6db5c78b8cadde4bb3df9bb1034"`
[INFO] [stderr]    Compiling serde v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.60
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking serde_json v1.0.17
[INFO] [stderr]     Checking city_generator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `generate_random`
[INFO] [stderr]   --> src/data.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn generate_random(&self) -> Result<String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `generate_random`
[INFO] [stderr]   --> src/data.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn generate_random(&self) -> Result<String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.57s
[INFO] running `"docker" "inspect" "cdeb284f2e8425713969b290d3f6d1f56cc8c6db5c78b8cadde4bb3df9bb1034"`
[INFO] running `"docker" "rm" "-f" "cdeb284f2e8425713969b290d3f6d1f56cc8c6db5c78b8cadde4bb3df9bb1034"`
[INFO] [stdout] cdeb284f2e8425713969b290d3f6d1f56cc8c6db5c78b8cadde4bb3df9bb1034