Dec 19 08:33:01.083 INFO checking snoyberg/rust-streaming-utf8 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 08:33:01.083 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/snoyberg/rust-streaming-utf8:/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 08:33:01.558 INFO [stdout] f8f5dafead851dd3b1fa4ec0a09c5950d9fd49660ec51ab5b38994a5ac6227e2
Dec 19 08:33:01.560 INFO running `"docker" "start" "-a" "f8f5dafead851dd3b1fa4ec0a09c5950d9fd49660ec51ab5b38994a5ac6227e2"`
Dec 19 08:33:03.600 INFO [stderr]     Checking rust-streaming-utf8 v0.1.0 (/opt/crater/workdir)
Dec 19 08:33:03.792 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 08:33:03.792 INFO [stderr]   --> src/main.rs:58:41
Dec 19 08:33:03.792 INFO [stderr]    |
Dec 19 08:33:03.792 INFO [stderr] 58 |             MyAppError::IOError(e) => e.cause(),
Dec 19 08:33:03.792 INFO [stderr]    |                                         ^^^^^
Dec 19 08:33:03.792 INFO [stderr]    |
Dec 19 08:33:03.792 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 08:33:03.792 INFO [stderr] 
Dec 19 08:33:03.800 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 08:33:03.800 INFO [stderr]   --> src/main.rs:59:49
Dec 19 08:33:03.800 INFO [stderr]    |
Dec 19 08:33:03.800 INFO [stderr] 59 |             MyAppError::DecodeUtf8Error(e) => e.cause(),
Dec 19 08:33:03.800 INFO [stderr]    |                                                 ^^^^^
Dec 19 08:33:03.800 INFO [stderr] 
Dec 19 08:33:03.912 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 08:33:03.912 INFO [stderr]   --> src/main.rs:58:41
Dec 19 08:33:03.912 INFO [stderr]    |
Dec 19 08:33:03.912 INFO [stderr] 58 |             MyAppError::IOError(e) => e.cause(),
Dec 19 08:33:03.912 INFO [stderr]    |                                         ^^^^^
Dec 19 08:33:03.912 INFO [stderr]    |
Dec 19 08:33:03.912 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 08:33:03.912 INFO [stderr] 
Dec 19 08:33:03.912 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 08:33:03.912 INFO [stderr]   --> src/main.rs:59:49
Dec 19 08:33:03.912 INFO [stderr]    |
Dec 19 08:33:03.912 INFO [stderr] 59 |             MyAppError::DecodeUtf8Error(e) => e.cause(),
Dec 19 08:33:03.912 INFO [stderr]    |                                                 ^^^^^
Dec 19 08:33:03.912 INFO [stderr] 
Dec 19 08:33:04.053 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
Dec 19 08:33:04.700 INFO running `"docker" "inspect" "f8f5dafead851dd3b1fa4ec0a09c5950d9fd49660ec51ab5b38994a5ac6227e2"`
Dec 19 08:33:04.829 INFO running `"docker" "rm" "-f" "f8f5dafead851dd3b1fa4ec0a09c5950d9fd49660ec51ab5b38994a5ac6227e2"`
Dec 19 08:33:04.971 INFO [stdout] f8f5dafead851dd3b1fa4ec0a09c5950d9fd49660ec51ab5b38994a5ac6227e2