Dec 17 15:08:20.363 INFO checking snoyberg/rust-streaming-utf8 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 15:08:20.363 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 15:08:20.724 INFO [stdout] 2c6800c606adbd43ab4bf641c1abdbcdee35c2d18fc9be1d3be75d88a81b8b7c
Dec 17 15:08:20.728 INFO running `"docker" "start" "-a" "2c6800c606adbd43ab4bf641c1abdbcdee35c2d18fc9be1d3be75d88a81b8b7c"`
Dec 17 15:08:22.178 INFO [stderr]     Checking rust-streaming-utf8 v0.1.0 (/opt/crater/workdir)
Dec 17 15:08:22.619 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 17 15:08:22.619 INFO [stderr]   --> src/main.rs:58:41
Dec 17 15:08:22.619 INFO [stderr]    |
Dec 17 15:08:22.620 INFO [stderr] 58 |             MyAppError::IOError(e) => e.cause(),
Dec 17 15:08:22.620 INFO [stderr]    |                                         ^^^^^
Dec 17 15:08:22.620 INFO [stderr]    |
Dec 17 15:08:22.620 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 17 15:08:22.621 INFO [stderr] 
Dec 17 15:08:22.621 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 17 15:08:22.621 INFO [stderr]   --> src/main.rs:59:49
Dec 17 15:08:22.621 INFO [stderr]    |
Dec 17 15:08:22.622 INFO [stderr] 59 |             MyAppError::DecodeUtf8Error(e) => e.cause(),
Dec 17 15:08:22.622 INFO [stderr]    |                                                 ^^^^^
Dec 17 15:08:22.622 INFO [stderr] 
Dec 17 15:08:22.656 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 17 15:08:22.656 INFO [stderr]   --> src/main.rs:58:41
Dec 17 15:08:22.657 INFO [stderr]    |
Dec 17 15:08:22.657 INFO [stderr] 58 |             MyAppError::IOError(e) => e.cause(),
Dec 17 15:08:22.657 INFO [stderr]    |                                         ^^^^^
Dec 17 15:08:22.657 INFO [stderr]    |
Dec 17 15:08:22.657 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 17 15:08:22.658 INFO [stderr] 
Dec 17 15:08:22.661 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 17 15:08:22.661 INFO [stderr]   --> src/main.rs:59:49
Dec 17 15:08:22.661 INFO [stderr]    |
Dec 17 15:08:22.661 INFO [stderr] 59 |             MyAppError::DecodeUtf8Error(e) => e.cause(),
Dec 17 15:08:22.662 INFO [stderr]    |                                                 ^^^^^
Dec 17 15:08:22.662 INFO [stderr] 
Dec 17 15:08:22.805 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Dec 17 15:08:23.752 INFO running `"docker" "inspect" "2c6800c606adbd43ab4bf641c1abdbcdee35c2d18fc9be1d3be75d88a81b8b7c"`
Dec 17 15:08:24.088 INFO running `"docker" "rm" "-f" "2c6800c606adbd43ab4bf641c1abdbcdee35c2d18fc9be1d3be75d88a81b8b7c"`
Dec 17 15:08:24.393 INFO [stdout] 2c6800c606adbd43ab4bf641c1abdbcdee35c2d18fc9be1d3be75d88a81b8b7c