[INFO] updating cached repository TechThrust/Rust-Simple-Linear-Regression
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/TechThrust/Rust-Simple-Linear-Regression
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/TechThrust/Rust-Simple-Linear-Regression" "work/ex/beta-1.38-1/sources/1.37.0/gh/TechThrust/Rust-Simple-Linear-Regression"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/TechThrust/Rust-Simple-Linear-Regression'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/TechThrust/Rust-Simple-Linear-Regression" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/TechThrust/Rust-Simple-Linear-Regression"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/TechThrust/Rust-Simple-Linear-Regression'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 56797a588d47cf07e9fc430fb96e5e3fb356fc06
[INFO] sha for GitHub repo TechThrust/Rust-Simple-Linear-Regression: 56797a588d47cf07e9fc430fb96e5e3fb356fc06
[INFO] validating manifest of TechThrust/Rust-Simple-Linear-Regression on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of TechThrust/Rust-Simple-Linear-Regression on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing TechThrust/Rust-Simple-Linear-Regression
[INFO] finished frobbing TechThrust/Rust-Simple-Linear-Regression
[INFO] frobbed toml for TechThrust/Rust-Simple-Linear-Regression written to work/ex/beta-1.38-1/sources/1.37.0/gh/TechThrust/Rust-Simple-Linear-Regression/Cargo.toml
[INFO] started frobbing TechThrust/Rust-Simple-Linear-Regression
[INFO] finished frobbing TechThrust/Rust-Simple-Linear-Regression
[INFO] frobbed toml for TechThrust/Rust-Simple-Linear-Regression written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/TechThrust/Rust-Simple-Linear-Regression/Cargo.toml
[INFO] crate TechThrust/Rust-Simple-Linear-Regression already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing TechThrust/Rust-Simple-Linear-Regression against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/TechThrust/Rust-Simple-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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 2c1ed37a62ac767e5feebf474861065024c0d40b2ed936645487ccf55e6a4815
[INFO] running `"docker" "start" "-a" "2c1ed37a62ac767e5feebf474861065024c0d40b2ed936645487ccf55e6a4815"`
[INFO] [stderr]    Compiling simple_regression v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "2c1ed37a62ac767e5feebf474861065024c0d40b2ed936645487ccf55e6a4815"`
[INFO] running `"docker" "rm" "-f" "2c1ed37a62ac767e5feebf474861065024c0d40b2ed936645487ccf55e6a4815"`
[INFO] [stdout] 2c1ed37a62ac767e5feebf474861065024c0d40b2ed936645487ccf55e6a4815
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/TechThrust/Rust-Simple-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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] dc723d8175912b0b43ddbdc8286fa40c19b54d7ca47d676ea8bae426e00d9822
[INFO] running `"docker" "start" "-a" "dc723d8175912b0b43ddbdc8286fa40c19b54d7ca47d676ea8bae426e00d9822"`
[INFO] [stderr]    Compiling simple_regression v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "dc723d8175912b0b43ddbdc8286fa40c19b54d7ca47d676ea8bae426e00d9822"`
[INFO] running `"docker" "rm" "-f" "dc723d8175912b0b43ddbdc8286fa40c19b54d7ca47d676ea8bae426e00d9822"`
[INFO] [stdout] dc723d8175912b0b43ddbdc8286fa40c19b54d7ca47d676ea8bae426e00d9822
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/TechThrust/Rust-Simple-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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 26e13fbe4cfce15f0667199ff471809fdab5a907fa770c234e9c855222352e35
[INFO] running `"docker" "start" "-a" "26e13fbe4cfce15f0667199ff471809fdab5a907fa770c234e9c855222352e35"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/simple_regression-a3207defe79bd8e4
[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" "26e13fbe4cfce15f0667199ff471809fdab5a907fa770c234e9c855222352e35"`
[INFO] running `"docker" "rm" "-f" "26e13fbe4cfce15f0667199ff471809fdab5a907fa770c234e9c855222352e35"`
[INFO] [stdout] 26e13fbe4cfce15f0667199ff471809fdab5a907fa770c234e9c855222352e35