Dec 18 12:47:51.145 INFO checking prost-amino-derive-0.4.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 12:47:51.145 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/prost-amino-derive/0.4.0:/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 12:47:51.552 INFO [stdout] e3b7758effb752763fa24f9da086d6e1ce1e8c20d0ee43892177180e8b9d798a
Dec 18 12:47:51.555 INFO running `"docker" "start" "-a" "e3b7758effb752763fa24f9da086d6e1ce1e8c20d0ee43892177180e8b9d798a"`
Dec 18 12:47:53.482 INFO [stderr]     Checking syn v0.14.9
Dec 18 12:47:53.483 INFO [stderr]     Checking failure v0.1.3
Dec 18 12:47:58.068 INFO [stderr]     Checking prost-amino-derive v0.4.0 (/opt/crater/workdir)
Dec 18 12:47:59.412 INFO [stderr] warning: unused import: `std::fmt`
Dec 18 12:47:59.413 INFO [stderr]    --> src/lib.rs:579:9
Dec 18 12:47:59.413 INFO [stderr]     |
Dec 18 12:47:59.413 INFO [stderr] 579 |     use std::fmt;
Dec 18 12:47:59.413 INFO [stderr]     |         ^^^^^^^^
Dec 18 12:47:59.414 INFO [stderr]     |
Dec 18 12:47:59.414 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 18 12:47:59.414 INFO [stderr] 
Dec 18 12:47:59.414 INFO [stderr] warning: unused import: `std::error`
Dec 18 12:47:59.414 INFO [stderr]    --> src/lib.rs:581:9
Dec 18 12:47:59.415 INFO [stderr]     |
Dec 18 12:47:59.415 INFO [stderr] 581 |     use std::error;
Dec 18 12:47:59.415 INFO [stderr]     |         ^^^^^^^^^^
Dec 18 12:47:59.415 INFO [stderr] 
Dec 18 12:48:01.889 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.52s
Dec 18 12:48:02.955 INFO running `"docker" "inspect" "e3b7758effb752763fa24f9da086d6e1ce1e8c20d0ee43892177180e8b9d798a"`
Dec 18 12:48:03.188 INFO running `"docker" "rm" "-f" "e3b7758effb752763fa24f9da086d6e1ce1e8c20d0ee43892177180e8b9d798a"`
Dec 18 12:48:03.452 INFO [stdout] e3b7758effb752763fa24f9da086d6e1ce1e8c20d0ee43892177180e8b9d798a