[INFO] updating cached repository lecorref/linear_regression
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lecorref/linear_regression
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lecorref/linear_regression" "work/ex/beta-1.37-6/sources/1.36.0/gh/lecorref/linear_regression"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/lecorref/linear_regression'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lecorref/linear_regression" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lecorref/linear_regression"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lecorref/linear_regression'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b93ba93bfdabf0c34cb96a29305320003da5bda4
[INFO] sha for GitHub repo lecorref/linear_regression: b93ba93bfdabf0c34cb96a29305320003da5bda4
[INFO] validating manifest of lecorref/linear_regression 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 lecorref/linear_regression 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 lecorref/linear_regression
[INFO] finished frobbing lecorref/linear_regression
[INFO] frobbed toml for lecorref/linear_regression written to work/ex/beta-1.37-6/sources/1.36.0/gh/lecorref/linear_regression/Cargo.toml
[INFO] started frobbing lecorref/linear_regression
[INFO] finished frobbing lecorref/linear_regression
[INFO] frobbed toml for lecorref/linear_regression written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lecorref/linear_regression/Cargo.toml
[INFO] crate lecorref/linear_regression 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/lecorref/linear_regression/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[INFO] the lockfile is outdated, regenerating it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 lecorref/linear_regression against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lecorref/linear_regression:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 7783cb4921892cca731ddf90c991b5aba80c5b94a34bda9fb14bce168711ef3a
[INFO] running `"docker" "start" "-a" "7783cb4921892cca731ddf90c991b5aba80c5b94a34bda9fb14bce168711ef3a"`
[INFO] [stderr]    Compiling csv v0.14.7
[INFO] [stderr]    Compiling linear_regression v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `"docker" "inspect" "7783cb4921892cca731ddf90c991b5aba80c5b94a34bda9fb14bce168711ef3a"`
[INFO] running `"docker" "rm" "-f" "7783cb4921892cca731ddf90c991b5aba80c5b94a34bda9fb14bce168711ef3a"`
[INFO] [stdout] 7783cb4921892cca731ddf90c991b5aba80c5b94a34bda9fb14bce168711ef3a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lecorref/linear_regression:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] c3fb9edb4c8ee545af6635f74e5fd7e402fea9b2e2a37afab6a46c5fcd74fd02
[INFO] running `"docker" "start" "-a" "c3fb9edb4c8ee545af6635f74e5fd7e402fea9b2e2a37afab6a46c5fcd74fd02"`
[INFO] [stderr]    Compiling linear_regression v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "c3fb9edb4c8ee545af6635f74e5fd7e402fea9b2e2a37afab6a46c5fcd74fd02"`
[INFO] running `"docker" "rm" "-f" "c3fb9edb4c8ee545af6635f74e5fd7e402fea9b2e2a37afab6a46c5fcd74fd02"`
[INFO] [stdout] c3fb9edb4c8ee545af6635f74e5fd7e402fea9b2e2a37afab6a46c5fcd74fd02
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lecorref/linear_regression:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 2763c7e9bc5ef77bb6772d6d22b089aa93477749195c5b652e010b3492494013
[INFO] running `"docker" "start" "-a" "2763c7e9bc5ef77bb6772d6d22b089aa93477749195c5b652e010b3492494013"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/predict-258f94f59e24914f
[INFO] [stderr]      Running /opt/crater/target/debug/deps/train-5e7138d8637df838
[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] [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" "2763c7e9bc5ef77bb6772d6d22b089aa93477749195c5b652e010b3492494013"`
[INFO] running `"docker" "rm" "-f" "2763c7e9bc5ef77bb6772d6d22b089aa93477749195c5b652e010b3492494013"`
[INFO] [stdout] 2763c7e9bc5ef77bb6772d6d22b089aa93477749195c5b652e010b3492494013