Dec 19 17:39:44.995 INFO checking dylanmckay/polk against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 17:39:44.996 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/dylanmckay/polk:/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 17:39:45.538 INFO [stdout] 8ffb3c14a7c462c53d438448dec6e3514cafcdad8dcf56b56f1856a7cf6eeab4
Dec 19 17:39:45.540 INFO running `"docker" "start" "-a" "8ffb3c14a7c462c53d438448dec6e3514cafcdad8dcf56b56f1856a7cf6eeab4"`
Dec 19 17:39:48.168 INFO [stderr]     Checking symlink v0.1.0
Dec 19 17:39:48.171 INFO [stderr]     Checking git2 v0.7.1
Dec 19 17:39:52.308 INFO [stderr]     Checking polk v1.1.3 (/opt/crater/workdir)
Dec 19 17:39:53.562 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 19 17:39:53.563 INFO [stderr]  --> src/util.rs:8:9
Dec 19 17:39:53.563 INFO [stderr]   |
Dec 19 17:39:53.563 INFO [stderr] 8 |         env::home_dir().expect("user does not have home directory")
Dec 19 17:39:53.563 INFO [stderr]   |         ^^^^^^^^^^^^^
Dec 19 17:39:53.564 INFO [stderr]   |
Dec 19 17:39:53.564 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 19 17:39:53.564 INFO [stderr] 
Dec 19 17:39:54.166 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 17:39:54.166 INFO [stderr]   --> src/errors.rs:1:1
Dec 19 17:39:54.167 INFO [stderr]    |
Dec 19 17:39:54.167 INFO [stderr] 1  | / error_chain! {
Dec 19 17:39:54.167 INFO [stderr] 2  | |     types {
Dec 19 17:39:54.167 INFO [stderr] 3  | |         Error, ErrorKind, ResultExt, Result;
Dec 19 17:39:54.168 INFO [stderr] 4  | |     }
Dec 19 17:39:54.168 INFO [stderr] ...  |
Dec 19 17:39:54.168 INFO [stderr] 12 | |     }
Dec 19 17:39:54.169 INFO [stderr] 13 | | }
Dec 19 17:39:54.169 INFO [stderr]    | |_^
Dec 19 17:39:54.169 INFO [stderr]    |
Dec 19 17:39:54.169 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 17:39:54.170 INFO [stderr] 
Dec 19 17:39:54.484 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 17:39:54.484 INFO [stderr]   --> src/errors.rs:1:1
Dec 19 17:39:54.484 INFO [stderr]    |
Dec 19 17:39:54.484 INFO [stderr] 1  | / error_chain! {
Dec 19 17:39:54.484 INFO [stderr] 2  | |     types {
Dec 19 17:39:54.484 INFO [stderr] 3  | |         Error, ErrorKind, ResultExt, Result;
Dec 19 17:39:54.484 INFO [stderr] 4  | |     }
Dec 19 17:39:54.484 INFO [stderr] ...  |
Dec 19 17:39:54.484 INFO [stderr] 12 | |     }
Dec 19 17:39:54.484 INFO [stderr] 13 | | }
Dec 19 17:39:54.485 INFO [stderr]    | |_^
Dec 19 17:39:54.485 INFO [stderr]    |
Dec 19 17:39:54.485 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 17:39:54.485 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 17:39:54.485 INFO [stderr] 
Dec 19 17:39:54.485 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 17:39:54.486 INFO [stderr]   --> src/errors.rs:1:1
Dec 19 17:39:54.486 INFO [stderr]    |
Dec 19 17:39:54.486 INFO [stderr] 1  | / error_chain! {
Dec 19 17:39:54.486 INFO [stderr] 2  | |     types {
Dec 19 17:39:54.487 INFO [stderr] 3  | |         Error, ErrorKind, ResultExt, Result;
Dec 19 17:39:54.487 INFO [stderr] 4  | |     }
Dec 19 17:39:54.487 INFO [stderr] ...  |
Dec 19 17:39:54.487 INFO [stderr] 12 | |     }
Dec 19 17:39:54.488 INFO [stderr] 13 | | }
Dec 19 17:39:54.488 INFO [stderr]    | |_^
Dec 19 17:39:54.488 INFO [stderr]    |
Dec 19 17:39:54.488 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 17:39:54.489 INFO [stderr] 
Dec 19 17:39:55.105 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.15s
Dec 19 17:39:56.760 INFO running `"docker" "inspect" "8ffb3c14a7c462c53d438448dec6e3514cafcdad8dcf56b56f1856a7cf6eeab4"`
Dec 19 17:39:57.072 INFO running `"docker" "rm" "-f" "8ffb3c14a7c462c53d438448dec6e3514cafcdad8dcf56b56f1856a7cf6eeab4"`
Dec 19 17:39:57.373 INFO [stdout] 8ffb3c14a7c462c53d438448dec6e3514cafcdad8dcf56b56f1856a7cf6eeab4