Dec 17 15:08:20.139 INFO checking snoyberg/rust-streaming-utf8 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 15:08:20.139 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 15:08:20.648 INFO [stdout] 57bf09673aa6740e81c29e961de4aca6cd4bc32211506b0fb85e3535f9ce41a9
Dec 17 15:08:20.654 INFO running `"docker" "start" "-a" "57bf09673aa6740e81c29e961de4aca6cd4bc32211506b0fb85e3535f9ce41a9"`
Dec 17 15:08:22.095 INFO [stderr]     Checking rust-streaming-utf8 v0.1.0 (/opt/crater/workdir)
Dec 17 15:08:22.506 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 17 15:08:22.506 INFO [stderr]   --> src/main.rs:58:41
Dec 17 15:08:22.506 INFO [stderr]    |
Dec 17 15:08:22.506 INFO [stderr] 58 |             MyAppError::IOError(e) => e.cause(),
Dec 17 15:08:22.506 INFO [stderr]    |                                         ^^^^^
Dec 17 15:08:22.506 INFO [stderr]    |
Dec 17 15:08:22.506 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 17 15:08:22.506 INFO [stderr] 
Dec 17 15:08:22.506 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 17 15:08:22.506 INFO [stderr]   --> src/main.rs:59:49
Dec 17 15:08:22.506 INFO [stderr]    |
Dec 17 15:08:22.506 INFO [stderr] 59 |             MyAppError::DecodeUtf8Error(e) => e.cause(),
Dec 17 15:08:22.506 INFO [stderr]    |                                                 ^^^^^
Dec 17 15:08:22.506 INFO [stderr] 
Dec 17 15:08:22.527 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 17 15:08:22.527 INFO [stderr]   --> src/main.rs:58:41
Dec 17 15:08:22.527 INFO [stderr]    |
Dec 17 15:08:22.527 INFO [stderr] 58 |             MyAppError::IOError(e) => e.cause(),
Dec 17 15:08:22.527 INFO [stderr]    |                                         ^^^^^
Dec 17 15:08:22.527 INFO [stderr]    |
Dec 17 15:08:22.527 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 17 15:08:22.527 INFO [stderr] 
Dec 17 15:08:22.527 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 17 15:08:22.527 INFO [stderr]   --> src/main.rs:59:49
Dec 17 15:08:22.527 INFO [stderr]    |
Dec 17 15:08:22.527 INFO [stderr] 59 |             MyAppError::DecodeUtf8Error(e) => e.cause(),
Dec 17 15:08:22.527 INFO [stderr]    |                                                 ^^^^^
Dec 17 15:08:22.527 INFO [stderr] 
Dec 17 15:08:22.748 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
Dec 17 15:08:23.690 INFO running `"docker" "inspect" "57bf09673aa6740e81c29e961de4aca6cd4bc32211506b0fb85e3535f9ce41a9"`
Dec 17 15:08:24.028 INFO running `"docker" "rm" "-f" "57bf09673aa6740e81c29e961de4aca6cd4bc32211506b0fb85e3535f9ce41a9"`
Dec 17 15:08:24.332 INFO [stdout] 57bf09673aa6740e81c29e961de4aca6cd4bc32211506b0fb85e3535f9ce41a9