Dec 19 12:01:51.817 INFO checking nathankleyn/jsonvalid against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:01:51.817 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/nathankleyn/jsonvalid:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:01:52.005 INFO [stdout] 6111caaa2e19d1f6ae684ed8af8711776f24be7adbf6a8d55b1a9f730d5457eb
Dec 19 12:01:52.008 INFO running `"docker" "start" "-a" "6111caaa2e19d1f6ae684ed8af8711776f24be7adbf6a8d55b1a9f730d5457eb"`
Dec 19 12:01:52.602 INFO [stderr]    Compiling num-traits v0.2.0
Dec 19 12:01:52.602 INFO [stderr]    Compiling rustc-demangle v0.1.6
Dec 19 12:01:52.602 INFO [stderr]    Compiling backtrace-sys v0.1.16
Dec 19 12:01:52.602 INFO [stderr]     Checking tempfile v2.2.0
Dec 19 12:01:52.602 INFO [stderr]     Checking jsonvalid v0.1.1 (/opt/crater/workdir)
Dec 19 12:01:52.602 INFO [stderr]    Compiling remove_dir_all v0.3.0
Dec 19 12:01:52.763 INFO [stderr]     Checking backtrace v0.3.5
Dec 19 12:01:52.765 INFO [stderr]    Compiling tempdir v0.3.6
Dec 19 12:01:53.164 INFO [stderr]     Checking error-chain v0.11.0
Dec 19 12:01:54.228 INFO [stderr]    Compiling num-traits v0.1.43
Dec 19 12:01:54.382 INFO [stderr]    Compiling serde_json v1.0.9
Dec 19 12:01:57.404 INFO [stderr]    Compiling cargo_metadata v0.3.3
Dec 19 12:01:58.782 INFO [stderr]    Compiling skeptic v0.13.2
Dec 19 12:02:00.352 INFO [stderr]    Compiling assert_cli v0.5.4
Dec 19 12:02:02.477 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.96s
Dec 19 12:02:03.109 INFO running `"docker" "inspect" "6111caaa2e19d1f6ae684ed8af8711776f24be7adbf6a8d55b1a9f730d5457eb"`
Dec 19 12:02:03.386 INFO running `"docker" "rm" "-f" "6111caaa2e19d1f6ae684ed8af8711776f24be7adbf6a8d55b1a9f730d5457eb"`
Dec 19 12:02:03.720 INFO [stdout] 6111caaa2e19d1f6ae684ed8af8711776f24be7adbf6a8d55b1a9f730d5457eb