[INFO] cloning repository howeih/Day-44-Gradient-Approximation
[INFO] running `"git" "clone" "--bare" "git://github.com/howeih/Day-44-Gradient-Approximation.git" "work/cache/sources/gh/howeih/Day-44-Gradient-Approximation"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/howeih/Day-44-Gradient-Approximation'...
[INFO] running `"git" "clone" "work/cache/sources/gh/howeih/Day-44-Gradient-Approximation" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/howeih/Day-44-Gradient-Approximation"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/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-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/howeih/Day-44-Gradient-Approximation"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/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#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of howeih/Day-44-Gradient-Approximation on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-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-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/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-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/howeih/Day-44-Gradient-Approximation/Cargo.toml
[INFO] crate howeih/Day-44-Gradient-Approximation has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking howeih/Day-44-Gradient-Approximation against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-7/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/howeih/Day-44-Gradient-Approximation:/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 790066f6b4fa5f5eda8300fb33b7e57d7e3bb417fc1c2a629844ca7adb2cb6cb
[INFO] running `"docker" "start" "-a" "790066f6b4fa5f5eda8300fb33b7e57d7e3bb417fc1c2a629844ca7adb2cb6cb"`
[INFO] [stderr]     Checking ndarray v0.11.2
[INFO] [stderr]     Checking gradient_approximation v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.88s
[INFO] running `"docker" "inspect" "790066f6b4fa5f5eda8300fb33b7e57d7e3bb417fc1c2a629844ca7adb2cb6cb"`
[INFO] running `"docker" "rm" "-f" "790066f6b4fa5f5eda8300fb33b7e57d7e3bb417fc1c2a629844ca7adb2cb6cb"`
[INFO] [stdout] 790066f6b4fa5f5eda8300fb33b7e57d7e3bb417fc1c2a629844ca7adb2cb6cb