[INFO] fetching crate linregress 0.4.4...
[INFO] testing linregress-0.4.4 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate linregress 0.4.4 into /workspace/builds/worker-69/source
[INFO] validating manifest of crates.io crate linregress 0.4.4 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate linregress 0.4.4
[INFO] finished tweaking crates.io crate linregress 0.4.4
[INFO] tweaked toml for crates.io crate linregress 0.4.4 written to /workspace/builds/worker-69/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] deff75568c5bce798381af55ffd7732b3c357133c31b1279a5379a29fabbef6d
[INFO] running `Command { std: "docker" "start" "-a" "deff75568c5bce798381af55ffd7732b3c357133c31b1279a5379a29fabbef6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "deff75568c5bce798381af55ffd7732b3c357133c31b1279a5379a29fabbef6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deff75568c5bce798381af55ffd7732b3c357133c31b1279a5379a29fabbef6d", kill_on_drop: false }`
[INFO] [stdout] deff75568c5bce798381af55ffd7732b3c357133c31b1279a5379a29fabbef6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bab05abfa4795d990c27b1b0076ce23f47c7acf5040f54ea29e4cb82833b00a
[INFO] running `Command { std: "docker" "start" "-a" "2bab05abfa4795d990c27b1b0076ce23f47c7acf5040f54ea29e4cb82833b00a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling matrixmultiply v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling approx v0.5.0
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling simba v0.5.1
[INFO] [stderr]    Compiling rand_distr v0.4.2
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling nalgebra v0.27.1
[INFO] [stderr]    Compiling statrs v0.15.0
[INFO] [stderr]    Compiling linregress v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.94s
[INFO] running `Command { std: "docker" "inspect" "2bab05abfa4795d990c27b1b0076ce23f47c7acf5040f54ea29e4cb82833b00a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bab05abfa4795d990c27b1b0076ce23f47c7acf5040f54ea29e4cb82833b00a", kill_on_drop: false }`
[INFO] [stdout] 2bab05abfa4795d990c27b1b0076ce23f47c7acf5040f54ea29e4cb82833b00a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d8a2f94e2136d47cba9122d4b5856b92db6e638ed13d06b9510da612b258c31
[INFO] running `Command { std: "docker" "start" "-a" "4d8a2f94e2136d47cba9122d4b5856b92db6e638ed13d06b9510da612b258c31", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling stdtr-sys v0.1.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling quickcheck v0.8.5
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]    Compiling stdtr v0.2.0
[INFO] [stderr]    Compiling linregress v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.29s
[INFO] running `Command { std: "docker" "inspect" "4d8a2f94e2136d47cba9122d4b5856b92db6e638ed13d06b9510da612b258c31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d8a2f94e2136d47cba9122d4b5856b92db6e638ed13d06b9510da612b258c31", kill_on_drop: false }`
[INFO] [stdout] 4d8a2f94e2136d47cba9122d4b5856b92db6e638ed13d06b9510da612b258c31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 98570ac95b5b66e1f47203b2e5183aa1a85f5d7c7b1391371c9ec9c011223cdc
[INFO] running `Command { std: "docker" "start" "-a" "98570ac95b5b66e1f47203b2e5183aa1a85f5d7c7b1391371c9ec9c011223cdc", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linregress-c288f59a65f28102)
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test special_functions::tests::test_inc_beta ... ok
[INFO] [stdout] test tests::test_drop_invalid_values ... ok
[INFO] [stdout] test tests::test_both_formula_and_data_columns ... ok
[INFO] [stdout] test special_functions::tests::qc_stdtr ... ok
[INFO] [stdout] test tests::test_all_invalid_input ... ok
[INFO] [stdout] test tests::test_invalid_column_names ... ok
[INFO] [stdout] test tests::test_invalid_input_empty_matrix ... ok
[INFO] [stdout] test tests::test_invalid_input_all_equal_columns ... ok
[INFO] [stdout] test tests::test_invalid_input_wrong_shape_x ... ok
[INFO] [stdout] test tests::test_invalid_input_infinity ... ok
[INFO] [stdout] test tests::test_invalid_input_nan ... ok
[INFO] [stdout] test tests::test_invalid_input_wrong_shape_y ... ok
[INFO] [stdout] test tests::test_multiple_predictions ... ok
[INFO] [stdout] test tests::test_low_level_model_fitting ... ok
[INFO] [stdout] test tests::test_no_formula ... ok
[INFO] [stdout] test tests::test_multiple_predictions_out_of_order ... ok
[INFO] [stdout] test tests::test_pinv_with_formula_builder ... ok
[INFO] [stdout] test tests::test_pinv_with_data_columns ... ok
[INFO] [stdout] test tests::test_not_enough_prediction_variables ... ok
[INFO] [stdout] test tests::test_prediction ... ok
[INFO] [stdout] test tests::test_prediction_empty_vectors ... ok
[INFO] [stdout] test tests::test_prediction_broken_model ... ok
[INFO] [stdout] test tests::test_prediction_vectors_with_different_lengths ... ok
[INFO] [stdout] test tests::test_too_many_prediction_variables ... ok
[INFO] [stdout] test tests::test_without_statistics ... ok
[INFO] [stderr]    Doc-tests linregress
[INFO] [stdout] test special_functions::tests::qc_inc_beta ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - RegressionDataBuilder::invalid_value_handling (line 451) ... ok
[INFO] [stdout] test src/lib.rs - RegressionDataBuilder::build_from (line 486) ... ok
[INFO] [stdout] test src/lib.rs - fit_low_level_regression_model (line 881) ... ok
[INFO] [stdout] test src/lib.rs - (line 12) ... ok
[INFO] [stdout] test src/lib.rs - RegressionModel::predict (line 589) ... ok
[INFO] [stdout] test src/lib.rs - FormulaRegressionBuilder (line 98) ... ok
[INFO] [stdout] test src/lib.rs - RegressionParameters::pairs (line 839) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.11s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "98570ac95b5b66e1f47203b2e5183aa1a85f5d7c7b1391371c9ec9c011223cdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98570ac95b5b66e1f47203b2e5183aa1a85f5d7c7b1391371c9ec9c011223cdc", kill_on_drop: false }`
[INFO] [stdout] 98570ac95b5b66e1f47203b2e5183aa1a85f5d7c7b1391371c9ec9c011223cdc