[INFO] updating cached repository takenta/feedforward_demo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/takenta/feedforward_demo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/takenta/feedforward_demo" "work/ex/beta-1.37-6/sources/1.36.0/gh/takenta/feedforward_demo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/takenta/feedforward_demo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/takenta/feedforward_demo" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/takenta/feedforward_demo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/takenta/feedforward_demo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fac08e6bb2bc9817edfe9d2789a8787bac3ef699
[INFO] sha for GitHub repo takenta/feedforward_demo: fac08e6bb2bc9817edfe9d2789a8787bac3ef699
[INFO] validating manifest of takenta/feedforward_demo on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of takenta/feedforward_demo on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing takenta/feedforward_demo
[INFO] finished frobbing takenta/feedforward_demo
[INFO] frobbed toml for takenta/feedforward_demo written to work/ex/beta-1.37-6/sources/1.36.0/gh/takenta/feedforward_demo/Cargo.toml
[INFO] started frobbing takenta/feedforward_demo
[INFO] finished frobbing takenta/feedforward_demo
[INFO] frobbed toml for takenta/feedforward_demo written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/takenta/feedforward_demo/Cargo.toml
[INFO] crate takenta/feedforward_demo already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/takenta/feedforward_demo/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing takenta/feedforward_demo against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/takenta/feedforward_demo:/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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 6f4a92b68b767e670e867301579db9f32f14475dd86e7ec71c97aeebfdeacced
[INFO] running `"docker" "start" "-a" "6f4a92b68b767e670e867301579db9f32f14475dd86e7ec71c97aeebfdeacced"`
[INFO] [stderr]    Compiling deep_learning v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "6f4a92b68b767e670e867301579db9f32f14475dd86e7ec71c97aeebfdeacced"`
[INFO] running `"docker" "rm" "-f" "6f4a92b68b767e670e867301579db9f32f14475dd86e7ec71c97aeebfdeacced"`
[INFO] [stdout] 6f4a92b68b767e670e867301579db9f32f14475dd86e7ec71c97aeebfdeacced
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/takenta/feedforward_demo:/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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 381e8ed5ee1d38b77e6a167ca308a44dbf7e83fd8d4a7b21bbc5114e4eab33e9
[INFO] running `"docker" "start" "-a" "381e8ed5ee1d38b77e6a167ca308a44dbf7e83fd8d4a7b21bbc5114e4eab33e9"`
[INFO] [stderr]    Compiling deep_learning v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "381e8ed5ee1d38b77e6a167ca308a44dbf7e83fd8d4a7b21bbc5114e4eab33e9"`
[INFO] running `"docker" "rm" "-f" "381e8ed5ee1d38b77e6a167ca308a44dbf7e83fd8d4a7b21bbc5114e4eab33e9"`
[INFO] [stdout] 381e8ed5ee1d38b77e6a167ca308a44dbf7e83fd8d4a7b21bbc5114e4eab33e9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/takenta/feedforward_demo:/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=warn" "-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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 438a9b6500eb0f19eb6a63ab739ecc24274575e7990d0fbd8f46e3ced2fb8d0a
[INFO] running `"docker" "start" "-a" "438a9b6500eb0f19eb6a63ab739ecc24274575e7990d0fbd8f46e3ced2fb8d0a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/deep_learning-3bc7e349733e851a
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "438a9b6500eb0f19eb6a63ab739ecc24274575e7990d0fbd8f46e3ced2fb8d0a"`
[INFO] running `"docker" "rm" "-f" "438a9b6500eb0f19eb6a63ab739ecc24274575e7990d0fbd8f46e3ced2fb8d0a"`
[INFO] [stdout] 438a9b6500eb0f19eb6a63ab739ecc24274575e7990d0fbd8f46e3ced2fb8d0a