[INFO] updating cached repository hsabouri/42_ft_linear_regression
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hsabouri/42_ft_linear_regression
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hsabouri/42_ft_linear_regression" "work/ex/beta-1.37-6/sources/1.36.0/gh/hsabouri/42_ft_linear_regression"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/hsabouri/42_ft_linear_regression'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hsabouri/42_ft_linear_regression" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/hsabouri/42_ft_linear_regression"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/hsabouri/42_ft_linear_regression'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6b0d7f632dc1e2041cd604dd43df83c1a8d6a9d5
[INFO] sha for GitHub repo hsabouri/42_ft_linear_regression: 6b0d7f632dc1e2041cd604dd43df83c1a8d6a9d5
[INFO] validating manifest of hsabouri/42_ft_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 hsabouri/42_ft_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 hsabouri/42_ft_linear_regression
[INFO] finished frobbing hsabouri/42_ft_linear_regression
[INFO] frobbed toml for hsabouri/42_ft_linear_regression written to work/ex/beta-1.37-6/sources/1.36.0/gh/hsabouri/42_ft_linear_regression/Cargo.toml
[INFO] started frobbing hsabouri/42_ft_linear_regression
[INFO] finished frobbing hsabouri/42_ft_linear_regression
[INFO] frobbed toml for hsabouri/42_ft_linear_regression written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/hsabouri/42_ft_linear_regression/Cargo.toml
[INFO] crate hsabouri/42_ft_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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing hsabouri/42_ft_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-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/hsabouri/42_ft_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] 686c686ab179a019ca466563e911de4ecc69134538439f03917791e5bf6971ec
[INFO] running `"docker" "start" "-a" "686c686ab179a019ca466563e911de4ecc69134538439f03917791e5bf6971ec"`
[INFO] [stderr]    Compiling serde v1.0.58
[INFO] [stderr]    Compiling gnuplot v0.0.25
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling csv v1.0.0
[INFO] [stderr]    Compiling ft_linear_regression v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/predict.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.29s
[INFO] running `"docker" "inspect" "686c686ab179a019ca466563e911de4ecc69134538439f03917791e5bf6971ec"`
[INFO] running `"docker" "rm" "-f" "686c686ab179a019ca466563e911de4ecc69134538439f03917791e5bf6971ec"`
[INFO] [stdout] 686c686ab179a019ca466563e911de4ecc69134538439f03917791e5bf6971ec
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/hsabouri/42_ft_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] bff2ee376c5ec11464735c486a6bd161c8f8d8771c9370318bdfa052a24f78cb
[INFO] running `"docker" "start" "-a" "bff2ee376c5ec11464735c486a6bd161c8f8d8771c9370318bdfa052a24f78cb"`
[INFO] [stderr]    Compiling ft_linear_regression v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/predict.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "bff2ee376c5ec11464735c486a6bd161c8f8d8771c9370318bdfa052a24f78cb"`
[INFO] running `"docker" "rm" "-f" "bff2ee376c5ec11464735c486a6bd161c8f8d8771c9370318bdfa052a24f78cb"`
[INFO] [stdout] bff2ee376c5ec11464735c486a6bd161c8f8d8771c9370318bdfa052a24f78cb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/hsabouri/42_ft_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] 37e82cb460c72e93136b2e1adf761ef8686d498972604da96b7c1c12aa797098
[INFO] running `"docker" "start" "-a" "37e82cb460c72e93136b2e1adf761ef8686d498972604da96b7c1c12aa797098"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ft_linear_regression-d780f823f576d078
[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" "37e82cb460c72e93136b2e1adf761ef8686d498972604da96b7c1c12aa797098"`
[INFO] running `"docker" "rm" "-f" "37e82cb460c72e93136b2e1adf761ef8686d498972604da96b7c1c12aa797098"`
[INFO] [stdout] 37e82cb460c72e93136b2e1adf761ef8686d498972604da96b7c1c12aa797098