Dec 18 14:55:04.861 INFO checking invariant-0.0.2 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 14:55:04.861 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/invariant/0.0.2:/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 14:55:05.097 INFO [stdout] 991f490ab9aba21a86e9e22517ed6b8ce67466ce8e5721c489453a877afc6ae5
Dec 18 14:55:05.099 INFO running `"docker" "start" "-a" "991f490ab9aba21a86e9e22517ed6b8ce67466ce8e5721c489453a877afc6ae5"`
Dec 18 14:55:05.733 INFO [stderr]     Checking invariant v0.0.2 (/opt/crater/workdir)
Dec 18 14:55:05.937 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 14:55:05.937 INFO [stderr]   --> src/lib.rs:60:50
Dec 18 14:55:05.937 INFO [stderr]    |
Dec 18 14:55:05.937 INFO [stderr] 60 |             InvariantError::OtherError(ref e) => <E as error::Error>::cause(e),
Dec 18 14:55:05.937 INFO [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:55:05.937 INFO [stderr]    |
Dec 18 14:55:05.937 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 14:55:05.937 INFO [stderr] 
Dec 18 14:55:05.937 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 14:55:05.937 INFO [stderr]    --> src/lib.rs:186:48
Dec 18 14:55:05.937 INFO [stderr]     |
Dec 18 14:55:05.937 INFO [stderr] 186 |     fn cause(&self) -> Option<&error::Error> { <T as error::Error>::cause(self.as_inner_ref()) }
Dec 18 14:55:05.937 INFO [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:55:05.937 INFO [stderr] 
Dec 18 14:55:05.956 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 14:55:05.956 INFO [stderr]   --> src/lib.rs:60:50
Dec 18 14:55:05.956 INFO [stderr]    |
Dec 18 14:55:05.956 INFO [stderr] 60 |             InvariantError::OtherError(ref e) => <E as error::Error>::cause(e),
Dec 18 14:55:05.956 INFO [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:55:05.956 INFO [stderr]    |
Dec 18 14:55:05.956 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 14:55:05.956 INFO [stderr] 
Dec 18 14:55:05.956 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 14:55:05.956 INFO [stderr]    --> src/lib.rs:186:48
Dec 18 14:55:05.956 INFO [stderr]     |
Dec 18 14:55:05.956 INFO [stderr] 186 |     fn cause(&self) -> Option<&error::Error> { <T as error::Error>::cause(self.as_inner_ref()) }
Dec 18 14:55:05.956 INFO [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:55:05.956 INFO [stderr] 
Dec 18 14:55:06.073 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
Dec 18 14:55:06.300 INFO running `"docker" "inspect" "991f490ab9aba21a86e9e22517ed6b8ce67466ce8e5721c489453a877afc6ae5"`
Dec 18 14:55:06.417 INFO running `"docker" "rm" "-f" "991f490ab9aba21a86e9e22517ed6b8ce67466ce8e5721c489453a877afc6ae5"`
Dec 18 14:55:06.489 INFO [stdout] 991f490ab9aba21a86e9e22517ed6b8ce67466ce8e5721c489453a877afc6ae5