Dec 18 13:59:46.292 INFO checking minifier-0.0.20 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 13:59:46.292 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/minifier/0.0.20:/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 13:59:46.445 INFO [stdout] d9c3b923b228653a2182dcb02cc84094834e58172c1121eeec097651689b6f0f
Dec 18 13:59:46.468 INFO running `"docker" "start" "-a" "d9c3b923b228653a2182dcb02cc84094834e58172c1121eeec097651689b6f0f"`
Dec 18 13:59:47.099 INFO [stderr]     Checking minifier v0.0.20 (/opt/crater/workdir)
Dec 18 13:59:47.684 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 13:59:47.684 INFO [stderr]    --> src/json/read/byte_to_char.rs:123:43
Dec 18 13:59:47.684 INFO [stderr]     |
Dec 18 13:59:47.684 INFO [stderr] 123 |             CharsError::Other(ref e) => e.cause(),
Dec 18 13:59:47.684 INFO [stderr]     |                                           ^^^^^
Dec 18 13:59:47.684 INFO [stderr]     |
Dec 18 13:59:47.684 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 18 13:59:47.684 INFO [stderr] 
Dec 18 13:59:47.928 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 13:59:47.928 INFO [stderr]    --> src/json/read/byte_to_char.rs:123:43
Dec 18 13:59:47.928 INFO [stderr]     |
Dec 18 13:59:47.928 INFO [stderr] 123 |             CharsError::Other(ref e) => e.cause(),
Dec 18 13:59:47.928 INFO [stderr]     |                                           ^^^^^
Dec 18 13:59:47.928 INFO [stderr]     |
Dec 18 13:59:47.928 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 18 13:59:47.928 INFO [stderr] 
Dec 18 13:59:48.551 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
Dec 18 13:59:48.834 INFO running `"docker" "inspect" "d9c3b923b228653a2182dcb02cc84094834e58172c1121eeec097651689b6f0f"`
Dec 18 13:59:48.948 INFO running `"docker" "rm" "-f" "d9c3b923b228653a2182dcb02cc84094834e58172c1121eeec097651689b6f0f"`
Dec 18 13:59:49.148 INFO [stdout] d9c3b923b228653a2182dcb02cc84094834e58172c1121eeec097651689b6f0f