Dec 18 16:57:10.741 INFO checking dono-2.0.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 16:57:10.741 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/dono/2.0.0:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 16:57:10.952 INFO [stdout] 8242bcffdab558681695cdd7b6ce5c407a255e74569d8aaebbcfe3218f7ade04
Dec 18 16:57:10.954 INFO running `"docker" "start" "-a" "8242bcffdab558681695cdd7b6ce5c407a255e74569d8aaebbcfe3218f7ade04"`
Dec 18 16:57:12.979 INFO [stderr]     Checking os_type v0.5.0
Dec 18 16:57:13.528 INFO [stderr]     Checking dono v2.0.0 (/opt/crater/workdir)
Dec 18 16:57:13.964 INFO [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
Dec 18 16:57:13.964 INFO [stderr]    --> src/labels.rs:237:30
Dec 18 16:57:13.964 INFO [stderr]     |
Dec 18 16:57:13.964 INFO [stderr] 237 |     let mut home_directory = env::home_dir().unwrap();
Dec 18 16:57:13.964 INFO [stderr]     |                              ^^^^^^^^^^^^^
Dec 18 16:57:13.964 INFO [stderr]     |
Dec 18 16:57:13.964 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 18 16:57:13.964 INFO [stderr] 
Dec 18 16:57:14.140 INFO [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
Dec 18 16:57:14.140 INFO [stderr]    --> src/labels.rs:237:30
Dec 18 16:57:14.140 INFO [stderr]     |
Dec 18 16:57:14.140 INFO [stderr] 237 |     let mut home_directory = env::home_dir().unwrap();
Dec 18 16:57:14.140 INFO [stderr]     |                              ^^^^^^^^^^^^^
Dec 18 16:57:14.140 INFO [stderr]     |
Dec 18 16:57:14.140 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 18 16:57:14.140 INFO [stderr] 
Dec 18 16:57:14.696 INFO [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
Dec 18 16:57:14.700 INFO [stderr]    --> tests/labels.rs:264:30
Dec 18 16:57:14.700 INFO [stderr]     |
Dec 18 16:57:14.700 INFO [stderr] 264 |     let mut home_directory = env::home_dir().unwrap();
Dec 18 16:57:14.700 INFO [stderr]     |                              ^^^^^^^^^^^^^
Dec 18 16:57:14.700 INFO [stderr]     |
Dec 18 16:57:14.700 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 18 16:57:14.700 INFO [stderr] 
Dec 18 16:57:14.868 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:57:14.868 INFO [stderr]    --> tests/labels.rs:106:9
Dec 18 16:57:14.868 INFO [stderr]     |
Dec 18 16:57:14.868 INFO [stderr] 106 |     let mut label = labels.last_mut().unwrap();
Dec 18 16:57:14.868 INFO [stderr]     |         ----^^^^^
Dec 18 16:57:14.868 INFO [stderr]     |         |
Dec 18 16:57:14.868 INFO [stderr]     |         help: remove this `mut`
Dec 18 16:57:14.868 INFO [stderr]     |
Dec 18 16:57:14.868 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 16:57:14.868 INFO [stderr] 
Dec 18 16:57:15.063 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.17s
Dec 18 16:57:15.532 INFO running `"docker" "inspect" "8242bcffdab558681695cdd7b6ce5c407a255e74569d8aaebbcfe3218f7ade04"`
Dec 18 16:57:15.619 INFO running `"docker" "rm" "-f" "8242bcffdab558681695cdd7b6ce5c407a255e74569d8aaebbcfe3218f7ade04"`
Dec 18 16:57:15.704 INFO [stdout] 8242bcffdab558681695cdd7b6ce5c407a255e74569d8aaebbcfe3218f7ade04