Dec 17 21:40:50.367 INFO checking kbacha/json_serde_test against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 21:40:50.367 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/kbacha/json_serde_test:/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 21:40:50.654 INFO [stdout] 8ba8e959b4925c55a770b872b5f06039e44c4e59691f419930ac06bfca2098f4
Dec 17 21:40:50.658 INFO running `"docker" "start" "-a" "8ba8e959b4925c55a770b872b5f06039e44c4e59691f419930ac06bfca2098f4"`
Dec 17 21:40:51.551 INFO [stderr]     Checking json_testing v0.1.0 (/opt/crater/workdir)
Dec 17 21:40:51.803 INFO [stderr] warning: unused import: `Read`
Dec 17 21:40:51.803 INFO [stderr]  --> src/main.rs:7:21
Dec 17 21:40:51.803 INFO [stderr]   |
Dec 17 21:40:51.803 INFO [stderr] 7 | use std::io::{self, Read};
Dec 17 21:40:51.804 INFO [stderr]   |                     ^^^^
Dec 17 21:40:51.804 INFO [stderr]   |
Dec 17 21:40:51.804 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 21:40:51.804 INFO [stderr] 
Dec 17 21:40:51.860 INFO [stderr] warning: unused import: `Read`
Dec 17 21:40:51.860 INFO [stderr]  --> src/main.rs:7:21
Dec 17 21:40:51.861 INFO [stderr]   |
Dec 17 21:40:51.861 INFO [stderr] 7 | use std::io::{self, Read};
Dec 17 21:40:51.861 INFO [stderr]   |                     ^^^^
Dec 17 21:40:51.861 INFO [stderr]   |
Dec 17 21:40:51.862 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 21:40:51.862 INFO [stderr] 
Dec 17 21:40:52.100 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
Dec 17 21:40:52.984 INFO running `"docker" "inspect" "8ba8e959b4925c55a770b872b5f06039e44c4e59691f419930ac06bfca2098f4"`
Dec 17 21:40:53.094 INFO running `"docker" "rm" "-f" "8ba8e959b4925c55a770b872b5f06039e44c4e59691f419930ac06bfca2098f4"`
Dec 17 21:40:53.224 INFO [stdout] 8ba8e959b4925c55a770b872b5f06039e44c4e59691f419930ac06bfca2098f4