Dec 19 10:53:35.441 INFO checking pizzamig/potnet against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 10:53:35.441 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/pizzamig/potnet:/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 10:53:35.925 INFO [stdout] 959ae87951f502064b87fa1dcc874eefd87b905624712d762fe7965cb66c9616
Dec 19 10:53:35.928 INFO running `"docker" "start" "-a" "959ae87951f502064b87fa1dcc874eefd87b905624712d762fe7965cb66c9616"`
Dec 19 10:53:38.088 INFO [stderr]    Compiling rustc-demangle v0.1.9
Dec 19 10:53:38.088 INFO [stderr]    Compiling bytecount v0.3.2
Dec 19 10:53:38.092 INFO [stderr]    Compiling walkdir v2.2.6
Dec 19 10:53:38.096 INFO [stderr]    Compiling backtrace-sys v0.1.24
Dec 19 10:53:38.104 INFO [stderr]    Compiling syn v0.15.17
Dec 19 10:53:39.664 INFO [stderr]    Compiling backtrace v0.3.9
Dec 19 10:53:42.032 INFO [stderr]    Compiling error-chain v0.11.0
Dec 19 10:53:52.340 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 19 10:53:52.340 INFO [stderr]    Compiling structopt-derive v0.2.13
Dec 19 10:53:52.340 INFO [stderr]    Compiling synstructure v0.10.1
Dec 19 10:53:59.632 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 19 10:54:00.900 INFO [stderr]     Checking structopt v0.2.13
Dec 19 10:54:03.460 INFO [stderr]     Checking failure v0.1.3
Dec 19 10:54:13.397 INFO [stderr]    Compiling cargo_metadata v0.5.8
Dec 19 10:54:17.144 INFO [stderr]    Compiling skeptic v0.13.3
Dec 19 10:54:21.366 INFO [stderr]    Compiling structopt-flags v0.2.1
Dec 19 10:54:23.896 INFO [stderr]     Checking potnet v0.1.2 (/opt/crater/workdir)
Dec 19 10:54:24.432 INFO [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
Dec 19 10:54:24.432 INFO [stderr]   --> src/pot/mod.rs:38:39
Dec 19 10:54:24.432 INFO [stderr]    |
Dec 19 10:54:24.432 INFO [stderr] 38 |     let pot_path = Path::new(pot_path.trim_right());
Dec 19 10:54:24.432 INFO [stderr]    |                                       ^^^^^^^^^^
Dec 19 10:54:24.432 INFO [stderr]    |
Dec 19 10:54:24.432 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 10:54:24.432 INFO [stderr] 
Dec 19 10:54:24.467 INFO [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
Dec 19 10:54:24.467 INFO [stderr]   --> src/pot/mod.rs:38:39
Dec 19 10:54:24.467 INFO [stderr]    |
Dec 19 10:54:24.468 INFO [stderr] 38 |     let pot_path = Path::new(pot_path.trim_right());
Dec 19 10:54:24.468 INFO [stderr]    |                                       ^^^^^^^^^^
Dec 19 10:54:24.468 INFO [stderr]    |
Dec 19 10:54:24.468 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 10:54:24.468 INFO [stderr] 
Dec 19 10:54:25.560 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.68s
Dec 19 10:54:26.494 INFO running `"docker" "inspect" "959ae87951f502064b87fa1dcc874eefd87b905624712d762fe7965cb66c9616"`
Dec 19 10:54:26.732 INFO running `"docker" "rm" "-f" "959ae87951f502064b87fa1dcc874eefd87b905624712d762fe7965cb66c9616"`
Dec 19 10:54:27.100 INFO [stdout] 959ae87951f502064b87fa1dcc874eefd87b905624712d762fe7965cb66c9616