[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[INFO] the lockfile is outdated, regenerating it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 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 68f820cdf822a3fd6043738dae305f452228681fc5e6d197693ab1e86267df91
[INFO] running `"docker" "start" "-a" "68f820cdf822a3fd6043738dae305f452228681fc5e6d197693ab1e86267df91"`
[INFO] [stderr]    Compiling linear_regression v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `"docker" "inspect" "68f820cdf822a3fd6043738dae305f452228681fc5e6d197693ab1e86267df91"`
[INFO] running `"docker" "rm" "-f" "68f820cdf822a3fd6043738dae305f452228681fc5e6d197693ab1e86267df91"`
[INFO] [stdout] 68f820cdf822a3fd6043738dae305f452228681fc5e6d197693ab1e86267df91
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 749480520cf673f6a7c4d266b92701f8d66e4e3c197d1fa584c0e58435d381cf
[INFO] running `"docker" "start" "-a" "749480520cf673f6a7c4d266b92701f8d66e4e3c197d1fa584c0e58435d381cf"`
[INFO] [stderr]    Compiling linear_regression v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "749480520cf673f6a7c4d266b92701f8d66e4e3c197d1fa584c0e58435d381cf"`
[INFO] running `"docker" "rm" "-f" "749480520cf673f6a7c4d266b92701f8d66e4e3c197d1fa584c0e58435d381cf"`
[INFO] [stdout] 749480520cf673f6a7c4d266b92701f8d66e4e3c197d1fa584c0e58435d381cf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 46a4916b9522a2dad00da4c2469e54721dc16bc0ba7859d3338777c827400908
[INFO] running `"docker" "start" "-a" "46a4916b9522a2dad00da4c2469e54721dc16bc0ba7859d3338777c827400908"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/predict-233055073a98354e
[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] [stderr]      Running /opt/crater/target/debug/deps/train-59d6615c1a05589b
[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" "46a4916b9522a2dad00da4c2469e54721dc16bc0ba7859d3338777c827400908"`
[INFO] running `"docker" "rm" "-f" "46a4916b9522a2dad00da4c2469e54721dc16bc0ba7859d3338777c827400908"`
[INFO] [stdout] 46a4916b9522a2dad00da4c2469e54721dc16bc0ba7859d3338777c827400908