Dec 19 18:20:26.659 INFO checking data-pup/cargo-metadata-exercise against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 18:20:26.659 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/data-pup/cargo-metadata-exercise:/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 18:20:27.182 INFO [stdout] 60b986ff77164068629ab514aa0e836876c31c1ad251894a35756cbe14c45bf2
Dec 19 18:20:27.186 INFO running `"docker" "start" "-a" "60b986ff77164068629ab514aa0e836876c31c1ad251894a35756cbe14c45bf2"`
Dec 19 18:20:29.104 INFO [stderr]     Checking semver v0.9.0
Dec 19 18:20:29.104 INFO [stderr]    Compiling syn v0.14.9
Dec 19 18:20:29.112 INFO [stderr]     Checking error-chain v0.12.0
Dec 19 18:20:39.019 INFO [stderr]    Compiling serde_derive v1.0.76
Dec 19 18:20:52.296 INFO [stderr]     Checking cargo_metadata v0.6.0
Dec 19 18:20:53.566 INFO [stderr]     Checking cargo-metadata-ex v0.1.0 (/opt/crater/workdir)
Dec 19 18:20:55.634 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.65s
Dec 19 18:20:55.923 INFO running `"docker" "inspect" "60b986ff77164068629ab514aa0e836876c31c1ad251894a35756cbe14c45bf2"`
Dec 19 18:20:56.002 INFO running `"docker" "rm" "-f" "60b986ff77164068629ab514aa0e836876c31c1ad251894a35756cbe14c45bf2"`
Dec 19 18:20:56.077 INFO [stdout] 60b986ff77164068629ab514aa0e836876c31c1ad251894a35756cbe14c45bf2