[INFO] updating cached repository howeih/Day-44-Gradient-Approximation
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/howeih/Day-44-Gradient-Approximation
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/howeih/Day-44-Gradient-Approximation" "work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/howeih/Day-44-Gradient-Approximation"`
[INFO] [stderr] Cloning into 'work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/howeih/Day-44-Gradient-Approximation'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/howeih/Day-44-Gradient-Approximation" "work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/howeih/Day-44-Gradient-Approximation"`
[INFO] [stderr] Cloning into 'work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/howeih/Day-44-Gradient-Approximation'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2084d871af03aa6c7222140a786a5024c732aeea
[INFO] sha for GitHub repo howeih/Day-44-Gradient-Approximation: 2084d871af03aa6c7222140a786a5024c732aeea
[INFO] validating manifest of howeih/Day-44-Gradient-Approximation on toolchain master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of howeih/Day-44-Gradient-Approximation on toolchain try#097e26225c5cc28d3042ad4c80eac7c488f78ee7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing howeih/Day-44-Gradient-Approximation
[INFO] finished frobbing howeih/Day-44-Gradient-Approximation
[INFO] frobbed toml for howeih/Day-44-Gradient-Approximation written to work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/howeih/Day-44-Gradient-Approximation/Cargo.toml
[INFO] started frobbing howeih/Day-44-Gradient-Approximation
[INFO] finished frobbing howeih/Day-44-Gradient-Approximation
[INFO] frobbed toml for howeih/Day-44-Gradient-Approximation written to work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/howeih/Day-44-Gradient-Approximation/Cargo.toml
[INFO] crate howeih/Day-44-Gradient-Approximation already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking howeih/Day-44-Gradient-Approximation against try#097e26225c5cc28d3042ad4c80eac7c488f78ee7 for pr-60932
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60932/worker-5/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/howeih/Day-44-Gradient-Approximation:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 95bb3f7819d9f0c2f9fd4f0b1a6d00a40e48960e1a76314dd1c4399c4c069008
[INFO] running `"docker" "start" "-a" "95bb3f7819d9f0c2f9fd4f0b1a6d00a40e48960e1a76314dd1c4399c4c069008"`
[INFO] [stderr]    Compiling ndarray v0.11.2
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]     Checking gradient_approximation v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.53s
[INFO] running `"docker" "inspect" "95bb3f7819d9f0c2f9fd4f0b1a6d00a40e48960e1a76314dd1c4399c4c069008"`
[INFO] running `"docker" "rm" "-f" "95bb3f7819d9f0c2f9fd4f0b1a6d00a40e48960e1a76314dd1c4399c4c069008"`
[INFO] [stdout] 95bb3f7819d9f0c2f9fd4f0b1a6d00a40e48960e1a76314dd1c4399c4c069008