Dec 19 15:18:04.742 INFO checking jechase/rustfmt_example against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 15:18:04.742 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/jechase/rustfmt_example:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:18:05.232 INFO [stdout] 94cafd794687893c5bd2d1bc417083d81ebbeab2d0b5566f45e61f43af94e50f
Dec 19 15:18:05.232 INFO running `"docker" "start" "-a" "94cafd794687893c5bd2d1bc417083d81ebbeab2d0b5566f45e61f43af94e50f"`
Dec 19 15:18:05.969 INFO [stderr]     Checking rust_demo v0.1.0 (/opt/crater/workdir)
Dec 19 15:18:06.072 INFO [stderr] warning: unused imports: `BufRead`, `Write`, `env`, `fs`, `process::Command`, `self`
Dec 19 15:18:06.072 INFO [stderr]  --> src/main.rs:2:5
Dec 19 15:18:06.072 INFO [stderr]   |
Dec 19 15:18:06.072 INFO [stderr] 2 |     env,
Dec 19 15:18:06.072 INFO [stderr]   |     ^^^
Dec 19 15:18:06.072 INFO [stderr] 3 |     fs,
Dec 19 15:18:06.072 INFO [stderr]   |     ^^
Dec 19 15:18:06.072 INFO [stderr] 4 |     io::{
Dec 19 15:18:06.072 INFO [stderr] 5 |         self,
Dec 19 15:18:06.072 INFO [stderr]   |         ^^^^
Dec 19 15:18:06.072 INFO [stderr] 6 |         BufRead,
Dec 19 15:18:06.072 INFO [stderr]   |         ^^^^^^^
Dec 19 15:18:06.072 INFO [stderr] 7 |         Write,
Dec 19 15:18:06.072 INFO [stderr]   |         ^^^^^
Dec 19 15:18:06.072 INFO [stderr] 8 |     },
Dec 19 15:18:06.072 INFO [stderr] 9 |     process::Command,
Dec 19 15:18:06.072 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 19 15:18:06.072 INFO [stderr]   |
Dec 19 15:18:06.072 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 15:18:06.072 INFO [stderr] 
Dec 19 15:18:06.104 INFO [stderr] warning: unused imports: `BufRead`, `Write`, `env`, `fs`, `process::Command`, `self`
Dec 19 15:18:06.104 INFO [stderr]  --> src/main.rs:2:5
Dec 19 15:18:06.104 INFO [stderr]   |
Dec 19 15:18:06.104 INFO [stderr] 2 |     env,
Dec 19 15:18:06.104 INFO [stderr]   |     ^^^
Dec 19 15:18:06.104 INFO [stderr] 3 |     fs,
Dec 19 15:18:06.104 INFO [stderr]   |     ^^
Dec 19 15:18:06.104 INFO [stderr] 4 |     io::{
Dec 19 15:18:06.104 INFO [stderr] 5 |         self,
Dec 19 15:18:06.104 INFO [stderr]   |         ^^^^
Dec 19 15:18:06.104 INFO [stderr] 6 |         BufRead,
Dec 19 15:18:06.104 INFO [stderr]   |         ^^^^^^^
Dec 19 15:18:06.104 INFO [stderr] 7 |         Write,
Dec 19 15:18:06.104 INFO [stderr]   |         ^^^^^
Dec 19 15:18:06.104 INFO [stderr] 8 |     },
Dec 19 15:18:06.104 INFO [stderr] 9 |     process::Command,
Dec 19 15:18:06.104 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 19 15:18:06.104 INFO [stderr]   |
Dec 19 15:18:06.104 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 15:18:06.104 INFO [stderr] 
Dec 19 15:18:06.125 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
Dec 19 15:18:06.510 INFO running `"docker" "inspect" "94cafd794687893c5bd2d1bc417083d81ebbeab2d0b5566f45e61f43af94e50f"`
Dec 19 15:18:06.721 INFO running `"docker" "rm" "-f" "94cafd794687893c5bd2d1bc417083d81ebbeab2d0b5566f45e61f43af94e50f"`
Dec 19 15:18:06.858 INFO [stdout] 94cafd794687893c5bd2d1bc417083d81ebbeab2d0b5566f45e61f43af94e50f