Dec 18 08:44:52.789 INFO checking 8bittree/pietro against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 08:44:52.789 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/8bittree/pietro:/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 08:44:53.074 INFO [stdout] b0ceb8efb7cb09f290e962110c6e0949e7000eee3d772174020df8fd7b08a7a9
Dec 18 08:44:53.080 INFO running `"docker" "start" "-a" "b0ceb8efb7cb09f290e962110c6e0949e7000eee3d772174020df8fd7b08a7a9"`
Dec 18 08:44:53.588 INFO [stderr]     Checking pietro v0.1.0 (/opt/crater/workdir)
Dec 18 08:44:53.792 INFO [stderr] warning: unused import: `DirEntry`
Dec 18 08:44:53.796 INFO [stderr]  --> src/main.rs:1:21
Dec 18 08:44:53.796 INFO [stderr]   |
Dec 18 08:44:53.796 INFO [stderr] 1 | use std::fs::{self, DirEntry};
Dec 18 08:44:53.796 INFO [stderr]   |                     ^^^^^^^^
Dec 18 08:44:53.796 INFO [stderr]   |
Dec 18 08:44:53.796 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:44:53.796 INFO [stderr] 
Dec 18 08:44:53.800 INFO [stderr] warning: unused import: `DirEntry`
Dec 18 08:44:53.800 INFO [stderr]  --> src/main.rs:1:21
Dec 18 08:44:53.800 INFO [stderr]   |
Dec 18 08:44:53.800 INFO [stderr] 1 | use std::fs::{self, DirEntry};
Dec 18 08:44:53.800 INFO [stderr]   |                     ^^^^^^^^
Dec 18 08:44:53.800 INFO [stderr]   |
Dec 18 08:44:53.800 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:44:53.800 INFO [stderr] 
Dec 18 08:44:53.819 INFO [stderr] warning: variable `dirEntries` should have a snake case name such as `dir_entries`
Dec 18 08:44:53.819 INFO [stderr]   --> src/main.rs:13:19
Dec 18 08:44:53.819 INFO [stderr]    |
Dec 18 08:44:53.819 INFO [stderr] 13 |         if let Ok(mut dirEntries) = fs::read_dir(dir) {
Dec 18 08:44:53.819 INFO [stderr]    |                   ^^^^^^^^^^^^^^
Dec 18 08:44:53.819 INFO [stderr]    |
Dec 18 08:44:53.819 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 18 08:44:53.819 INFO [stderr] 
Dec 18 08:44:53.837 INFO [stderr] warning: variable `dirEntries` should have a snake case name such as `dir_entries`
Dec 18 08:44:53.837 INFO [stderr]   --> src/main.rs:13:19
Dec 18 08:44:53.837 INFO [stderr]    |
Dec 18 08:44:53.837 INFO [stderr] 13 |         if let Ok(mut dirEntries) = fs::read_dir(dir) {
Dec 18 08:44:53.837 INFO [stderr]    |                   ^^^^^^^^^^^^^^
Dec 18 08:44:53.837 INFO [stderr]    |
Dec 18 08:44:53.837 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 18 08:44:53.837 INFO [stderr] 
Dec 18 08:44:53.853 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
Dec 18 08:44:54.112 INFO running `"docker" "inspect" "b0ceb8efb7cb09f290e962110c6e0949e7000eee3d772174020df8fd7b08a7a9"`
Dec 18 08:44:54.216 INFO running `"docker" "rm" "-f" "b0ceb8efb7cb09f290e962110c6e0949e7000eee3d772174020df8fd7b08a7a9"`
Dec 18 08:44:54.368 INFO [stdout] b0ceb8efb7cb09f290e962110c6e0949e7000eee3d772174020df8fd7b08a7a9