Dec 19 10:10:27.596 INFO checking richardbrodie/manta_ray against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 10:10:27.597 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/richardbrodie/manta_ray:/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 10:10:27.940 INFO [stdout] 82f08eba8d1cf8394c91e5d986c486a5d5a93bda3a8cc3dfcaf02334114009b6
Dec 19 10:10:27.948 INFO running `"docker" "start" "-a" "82f08eba8d1cf8394c91e5d986c486a5d5a93bda3a8cc3dfcaf02334114009b6"`
Dec 19 10:10:29.576 INFO [stderr]     Checking serde_yaml v0.8.5
Dec 19 10:10:29.588 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 19 10:10:31.019 INFO [stderr]     Checking image v0.20.0
Dec 19 10:10:35.637 INFO [stderr]     Checking manta_ray v0.1.0 (/opt/crater/workdir)
Dec 19 10:10:37.668 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.27s
Dec 19 10:10:38.624 INFO running `"docker" "inspect" "82f08eba8d1cf8394c91e5d986c486a5d5a93bda3a8cc3dfcaf02334114009b6"`
Dec 19 10:10:38.958 INFO running `"docker" "rm" "-f" "82f08eba8d1cf8394c91e5d986c486a5d5a93bda3a8cc3dfcaf02334114009b6"`
Dec 19 10:10:39.315 INFO [stdout] 82f08eba8d1cf8394c91e5d986c486a5d5a93bda3a8cc3dfcaf02334114009b6