Dec 18 03:31:38.441 INFO checking banziha104/RustSample against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 03:31:38.441 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/banziha104/RustSample:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 03:31:38.991 INFO [stdout] 49eaf0c26d9249c4ecc12cdc24d87d399b19809ad8b2221cb76fecc4b288b3c2
Dec 18 03:31:38.993 INFO running `"docker" "start" "-a" "49eaf0c26d9249c4ecc12cdc24d87d399b19809ad8b2221cb76fecc4b288b3c2"`
Dec 18 03:31:40.576 INFO [stderr]     Checking RustSample v0.1.0 (/opt/crater/workdir)
Dec 18 03:31:40.960 INFO [stderr] warning: unused import: `std::thread`
Dec 18 03:31:40.960 INFO [stderr]  --> src/main.rs:1:5
Dec 18 03:31:40.960 INFO [stderr]   |
Dec 18 03:31:40.960 INFO [stderr] 1 | use std::thread;
Dec 18 03:31:40.960 INFO [stderr]   |     ^^^^^^^^^^^
Dec 18 03:31:40.960 INFO [stderr]   |
Dec 18 03:31:40.960 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 03:31:40.960 INFO [stderr] 
Dec 18 03:31:41.004 INFO [stderr] warning: unused import: `std::thread`
Dec 18 03:31:41.004 INFO [stderr]  --> src/main.rs:1:5
Dec 18 03:31:41.004 INFO [stderr]   |
Dec 18 03:31:41.004 INFO [stderr] 1 | use std::thread;
Dec 18 03:31:41.004 INFO [stderr]   |     ^^^^^^^^^^^
Dec 18 03:31:41.004 INFO [stderr]   |
Dec 18 03:31:41.004 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 03:31:41.004 INFO [stderr] 
Dec 18 03:31:41.004 INFO [stderr] warning: crate `RustSample` should have a snake case name such as `rust_sample`
Dec 18 03:31:41.004 INFO [stderr]   |
Dec 18 03:31:41.004 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 03:31:41.004 INFO [stderr] 
Dec 18 03:31:41.004 INFO [stderr] warning: function `returnFormat` should have a snake case name such as `return_format`
Dec 18 03:31:41.004 INFO [stderr]  --> src/main.rs:4:1
Dec 18 03:31:41.004 INFO [stderr]   |
Dec 18 03:31:41.004 INFO [stderr] 4 | / fn returnFormat(i : i32) -> String{
Dec 18 03:31:41.004 INFO [stderr] 5 | |     format!("{}",i)
Dec 18 03:31:41.004 INFO [stderr] 6 | | }
Dec 18 03:31:41.005 INFO [stderr]   | |_^
Dec 18 03:31:41.005 INFO [stderr] 
Dec 18 03:31:41.068 INFO [stderr] warning: crate `RustSample` should have a snake case name such as `rust_sample`
Dec 18 03:31:41.069 INFO [stderr]   |
Dec 18 03:31:41.069 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 03:31:41.069 INFO [stderr] 
Dec 18 03:31:41.069 INFO [stderr] warning: function `returnFormat` should have a snake case name such as `return_format`
Dec 18 03:31:41.069 INFO [stderr]  --> src/main.rs:4:1
Dec 18 03:31:41.069 INFO [stderr]   |
Dec 18 03:31:41.069 INFO [stderr] 4 | / fn returnFormat(i : i32) -> String{
Dec 18 03:31:41.069 INFO [stderr] 5 | |     format!("{}",i)
Dec 18 03:31:41.069 INFO [stderr] 6 | | }
Dec 18 03:31:41.069 INFO [stderr]   | |_^
Dec 18 03:31:41.069 INFO [stderr] 
Dec 18 03:31:41.096 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
Dec 18 03:31:41.604 INFO running `"docker" "inspect" "49eaf0c26d9249c4ecc12cdc24d87d399b19809ad8b2221cb76fecc4b288b3c2"`
Dec 18 03:31:41.698 INFO running `"docker" "rm" "-f" "49eaf0c26d9249c4ecc12cdc24d87d399b19809ad8b2221cb76fecc4b288b3c2"`
Dec 18 03:31:41.850 INFO [stdout] 49eaf0c26d9249c4ecc12cdc24d87d399b19809ad8b2221cb76fecc4b288b3c2