Dec 19 20:35:52.285 INFO checking amazingmo/ownership against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 20:35:52.285 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/amazingmo/ownership:/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 20:35:52.551 INFO [stdout] b17f2bb8d92cec0060d8be131503fc7c46c0f6107f0c5c42bdbc82bfd2e9bcf8
Dec 19 20:35:52.581 INFO running `"docker" "start" "-a" "b17f2bb8d92cec0060d8be131503fc7c46c0f6107f0c5c42bdbc82bfd2e9bcf8"`
Dec 19 20:35:53.459 INFO [stderr]     Checking ownership v0.1.0 (/opt/crater/workdir)
Dec 19 20:35:53.668 INFO [stderr] warning: unused import: `std::io::Write`
Dec 19 20:35:53.668 INFO [stderr]  --> src/main.rs:2:5
Dec 19 20:35:53.668 INFO [stderr]   |
Dec 19 20:35:53.668 INFO [stderr] 2 | use std::io::Write;
Dec 19 20:35:53.668 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 19 20:35:53.668 INFO [stderr]   |
Dec 19 20:35:53.668 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 20:35:53.668 INFO [stderr] 
Dec 19 20:35:53.760 INFO [stderr] warning: unused variable: `first`
Dec 19 20:35:53.760 INFO [stderr]   --> src/main.rs:41:9
Dec 19 20:35:53.760 INFO [stderr]    |
Dec 19 20:35:53.760 INFO [stderr] 41 |     let first = std::mem::replace( &mut v[0], "replacement".to_string());
Dec 19 20:35:53.760 INFO [stderr]    |         ^^^^^ help: consider using `_first` instead
Dec 19 20:35:53.760 INFO [stderr]    |
Dec 19 20:35:53.760 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 20:35:53.760 INFO [stderr] 
Dec 19 20:35:53.816 INFO [stderr] warning: unused import: `std::io::Write`
Dec 19 20:35:53.816 INFO [stderr]  --> src/main.rs:2:5
Dec 19 20:35:53.816 INFO [stderr]   |
Dec 19 20:35:53.816 INFO [stderr] 2 | use std::io::Write;
Dec 19 20:35:53.816 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 19 20:35:53.816 INFO [stderr]   |
Dec 19 20:35:53.816 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 20:35:53.816 INFO [stderr] 
Dec 19 20:35:53.864 INFO [stderr] warning: unused variable: `first`
Dec 19 20:35:53.864 INFO [stderr]   --> src/main.rs:41:9
Dec 19 20:35:53.864 INFO [stderr]    |
Dec 19 20:35:53.864 INFO [stderr] 41 |     let first = std::mem::replace( &mut v[0], "replacement".to_string());
Dec 19 20:35:53.864 INFO [stderr]    |         ^^^^^ help: consider using `_first` instead
Dec 19 20:35:53.864 INFO [stderr]    |
Dec 19 20:35:53.864 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 20:35:53.864 INFO [stderr] 
Dec 19 20:35:53.913 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
Dec 19 20:35:54.287 INFO running `"docker" "inspect" "b17f2bb8d92cec0060d8be131503fc7c46c0f6107f0c5c42bdbc82bfd2e9bcf8"`
Dec 19 20:35:54.416 INFO running `"docker" "rm" "-f" "b17f2bb8d92cec0060d8be131503fc7c46c0f6107f0c5c42bdbc82bfd2e9bcf8"`
Dec 19 20:35:54.532 INFO [stdout] b17f2bb8d92cec0060d8be131503fc7c46c0f6107f0c5c42bdbc82bfd2e9bcf8