Dec 19 14:48:18.657 INFO checking juli1/rust-json-example against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 14:48:18.657 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/juli1/rust-json-example:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 14:48:19.096 INFO [stdout] 7ef28d43fe7ed1989591f3c9f501caddabafc28cd43eb2d7a0432b65d82af95f
Dec 19 14:48:19.100 INFO running `"docker" "start" "-a" "7ef28d43fe7ed1989591f3c9f501caddabafc28cd43eb2d7a0432b65d82af95f"`
Dec 19 14:48:21.108 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Dec 19 14:48:21.108 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Dec 19 14:48:21.108 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 19 14:48:21.108 INFO [stderr] files will be included as a binary target:
Dec 19 14:48:21.108 INFO [stderr] 
Dec 19 14:48:21.108 INFO [stderr] * /opt/crater/workdir/src/main.rs
Dec 19 14:48:21.108 INFO [stderr] 
Dec 19 14:48:21.108 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 19 14:48:21.108 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Dec 19 14:48:21.108 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Dec 19 14:48:21.108 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 19 14:48:21.108 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 19 14:48:21.108 INFO [stderr] 
Dec 19 14:48:21.108 INFO [stderr] For more information on this warning you can consult
Dec 19 14:48:21.108 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 19 14:48:21.322 INFO [stderr]     Checking tokio-io v0.1.4
Dec 19 14:48:21.333 INFO [stderr]     Checking http v0.1.4
Dec 19 14:48:23.312 INFO [stderr]     Checking tokio-core v0.1.12
Dec 19 14:48:25.310 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 19 14:48:25.310 INFO [stderr]     Checking tokio-tls v0.1.4
Dec 19 14:48:27.574 INFO [stderr]     Checking hyper v0.11.16
Dec 19 14:48:32.557 INFO [stderr]     Checking hyper-tls v0.1.2
Dec 19 14:48:33.208 INFO [stderr]     Checking rust-json v0.1.0 (/opt/crater/workdir)
Dec 19 14:48:34.793 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.71s
Dec 19 14:48:35.516 INFO running `"docker" "inspect" "7ef28d43fe7ed1989591f3c9f501caddabafc28cd43eb2d7a0432b65d82af95f"`
Dec 19 14:48:35.799 INFO running `"docker" "rm" "-f" "7ef28d43fe7ed1989591f3c9f501caddabafc28cd43eb2d7a0432b65d82af95f"`
Dec 19 14:48:36.148 INFO [stdout] 7ef28d43fe7ed1989591f3c9f501caddabafc28cd43eb2d7a0432b65d82af95f