[INFO] updating cached repository howlowck/learn-ml-in-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/howlowck/learn-ml-in-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/howlowck/learn-ml-in-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/howlowck/learn-ml-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/howlowck/learn-ml-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/howlowck/learn-ml-in-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/howlowck/learn-ml-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/howlowck/learn-ml-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0f1a5e20c5e3eb14c70a4fb2fee0b3962d99da12
[INFO] sha for GitHub repo howlowck/learn-ml-in-rust: 0f1a5e20c5e3eb14c70a4fb2fee0b3962d99da12
[INFO] validating manifest of howlowck/learn-ml-in-rust 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 howlowck/learn-ml-in-rust 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 howlowck/learn-ml-in-rust
[INFO] finished frobbing howlowck/learn-ml-in-rust
[INFO] frobbed toml for howlowck/learn-ml-in-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/howlowck/learn-ml-in-rust/Cargo.toml
[INFO] started frobbing howlowck/learn-ml-in-rust
[INFO] finished frobbing howlowck/learn-ml-in-rust
[INFO] frobbed toml for howlowck/learn-ml-in-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/howlowck/learn-ml-in-rust/Cargo.toml
[INFO] crate howlowck/learn-ml-in-rust 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing howlowck/learn-ml-in-rust 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/howlowck/learn-ml-in-rust:/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] 352d809e00c85e64c9adf277d8919e247361346282fd1396763d04219e53bb39
[INFO] running `"docker" "start" "-a" "352d809e00c85e64c9adf277d8919e247361346282fd1396763d04219e53bb39"`
[INFO] [stderr]    Compiling smallvec v0.6.7
[INFO] [stderr]    Compiling clicolors-control v1.0.0
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling console v0.7.2
[INFO] [stderr]    Compiling learn-ml-in-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.89s
[INFO] running `"docker" "inspect" "352d809e00c85e64c9adf277d8919e247361346282fd1396763d04219e53bb39"`
[INFO] running `"docker" "rm" "-f" "352d809e00c85e64c9adf277d8919e247361346282fd1396763d04219e53bb39"`
[INFO] [stdout] 352d809e00c85e64c9adf277d8919e247361346282fd1396763d04219e53bb39
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/howlowck/learn-ml-in-rust:/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] bb692332e700013c3039eacf21a25ca13761201b96ce1ac79d291afa47fd7193
[INFO] running `"docker" "start" "-a" "bb692332e700013c3039eacf21a25ca13761201b96ce1ac79d291afa47fd7193"`
[INFO] [stderr]    Compiling learn-ml-in-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "bb692332e700013c3039eacf21a25ca13761201b96ce1ac79d291afa47fd7193"`
[INFO] running `"docker" "rm" "-f" "bb692332e700013c3039eacf21a25ca13761201b96ce1ac79d291afa47fd7193"`
[INFO] [stdout] bb692332e700013c3039eacf21a25ca13761201b96ce1ac79d291afa47fd7193
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/howlowck/learn-ml-in-rust:/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] 11b2ecef1e04055086fb87ac92936ea3f0932ecac6cdada023a329f474c731d7
[INFO] running `"docker" "start" "-a" "11b2ecef1e04055086fb87ac92936ea3f0932ecac6cdada023a329f474c731d7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learn_ml_in_rust-ad46a83a36d24f2c
[INFO] [stdout] 
[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" "11b2ecef1e04055086fb87ac92936ea3f0932ecac6cdada023a329f474c731d7"`
[INFO] running `"docker" "rm" "-f" "11b2ecef1e04055086fb87ac92936ea3f0932ecac6cdada023a329f474c731d7"`
[INFO] [stdout] 11b2ecef1e04055086fb87ac92936ea3f0932ecac6cdada023a329f474c731d7