Dec 12 03:03:30.320 INFO checking ElectricCoffee/city_generator against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 03:03:30.320 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 03:03:30.491 INFO [stdout] d3b7044813fab9d673d431517a77e3218d4032054d4147cfcc38f748d30fc727
Dec 12 03:03:30.494 INFO running `"docker" "start" "-a" "d3b7044813fab9d673d431517a77e3218d4032054d4147cfcc38f748d30fc727"`
Dec 12 03:03:30.945 INFO [stderr] usermod: no changes
Dec 12 03:03:31.060 INFO [stderr]    Compiling serde v1.0.60
Dec 12 03:03:31.060 INFO [stderr]     Checking backtrace-sys v0.1.23
Dec 12 03:03:31.060 INFO [stderr]    Compiling serde_derive v1.0.60
Dec 12 03:03:31.901 INFO [stderr]     Checking backtrace v0.3.8
Dec 12 03:03:32.881 INFO [stderr]     Checking failure v0.1.1
Dec 12 03:03:44.885 INFO [stderr]     Checking serde_json v1.0.17
Dec 12 03:03:51.004 INFO [stderr]     Checking city_generator v0.1.0 (/source)
Dec 12 03:03:53.841 INFO [stderr] warning: method is never used: `generate_random`
Dec 12 03:03:53.841 INFO [stderr]   --> src/data.rs:39:5
Dec 12 03:03:53.841 INFO [stderr]    |
Dec 12 03:03:53.841 INFO [stderr] 39 |     pub fn generate_random(&self) -> Result<String> {
Dec 12 03:03:53.841 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:03:53.841 INFO [stderr]    |
Dec 12 03:03:53.842 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 03:03:53.842 INFO [stderr] 
Dec 12 03:03:53.963 INFO [stderr] warning: method is never used: `generate_random`
Dec 12 03:03:53.963 INFO [stderr]   --> src/data.rs:39:5
Dec 12 03:03:53.963 INFO [stderr]    |
Dec 12 03:03:53.963 INFO [stderr] 39 |     pub fn generate_random(&self) -> Result<String> {
Dec 12 03:03:53.963 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:03:53.963 INFO [stderr]    |
Dec 12 03:03:53.963 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 03:03:53.963 INFO [stderr] 
Dec 12 03:03:53.992 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.03s
Dec 12 03:03:54.004 INFO [stderr] su: No module specific data is present
Dec 12 03:03:54.990 INFO running `"docker" "inspect" "d3b7044813fab9d673d431517a77e3218d4032054d4147cfcc38f748d30fc727"`
Dec 12 03:03:55.198 INFO running `"docker" "rm" "-f" "d3b7044813fab9d673d431517a77e3218d4032054d4147cfcc38f748d30fc727"`
Dec 12 03:03:55.424 INFO [stdout] d3b7044813fab9d673d431517a77e3218d4032054d4147cfcc38f748d30fc727