[INFO] fetching crate rstat 0.6.0...
[INFO] testing rstat-0.6.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate rstat 0.6.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rstat 0.6.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rstat 0.6.0
[INFO] finished tweaking crates.io crate rstat 0.6.0
[INFO] tweaked toml for crates.io crate rstat 0.6.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cblas-sys v0.1.4
[INFO] [stderr]   Downloaded cauchy v0.2.2
[INFO] [stderr]   Downloaded ndarray-linalg v0.12.1
[INFO] [stderr]   Downloaded lapacke-sys v0.1.4
[INFO] [stderr]   Downloaded ndarray v0.13.1
[INFO] [stderr]   Downloaded lapack-src v0.6.0
[INFO] [stderr]   Downloaded blas-src v0.2.1
[INFO] [stderr]   Downloaded blas-src v0.6.1
[INFO] [stderr]   Downloaded lapacke v0.2.0
[INFO] [stderr]   Downloaded spaces v5.0.0
[INFO] [stderr]   Downloaded special-fun v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] feca53b947e53c21947d30f7bc0a650feba948a1dd48dd44186dd121d3592eb0
[INFO] running `Command { std: "docker" "start" "-a" "feca53b947e53c21947d30f7bc0a650feba948a1dd48dd44186dd121d3592eb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "feca53b947e53c21947d30f7bc0a650feba948a1dd48dd44186dd121d3592eb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feca53b947e53c21947d30f7bc0a650feba948a1dd48dd44186dd121d3592eb0", kill_on_drop: false }`
[INFO] [stdout] feca53b947e53c21947d30f7bc0a650feba948a1dd48dd44186dd121d3592eb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68d170eea1c57029e3f3153d6d2452a06de4bc584ed25a4a32156eb07e2a1220
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "68d170eea1c57029e3f3153d6d2452a06de4bc584ed25a4a32156eb07e2a1220", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling special-fun v0.2.0
[INFO] [stderr]    Compiling matrixmultiply v0.2.4
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling spaces v5.0.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling rstat v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/univariate/rayleigh.rs:13:28
[INFO] [stdout]    |
[INFO] [stdout] 13 | const FOUR_MINUS_PI: f64 = (4.0 - PI);
[INFO] [stdout]    |                            ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `factorial_exact`
[INFO] [stdout]  --> src/utils.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn factorial_exact(n: u64) -> u64 { (1..=n).product() }
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `factorial`
[INFO] [stdout]  --> src/utils.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn factorial(n: u64) -> u64 {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.25s
[INFO] running `Command { std: "docker" "inspect" "68d170eea1c57029e3f3153d6d2452a06de4bc584ed25a4a32156eb07e2a1220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68d170eea1c57029e3f3153d6d2452a06de4bc584ed25a4a32156eb07e2a1220", kill_on_drop: false }`
[INFO] [stdout] 68d170eea1c57029e3f3153d6d2452a06de4bc584ed25a4a32156eb07e2a1220
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3003b13fd668aa1d8f6f2500dc464f319b48057f7b56d74bc565897cc9dac925
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3003b13fd668aa1d8f6f2500dc464f319b48057f7b56d74bc565897cc9dac925", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rstat v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/univariate/rayleigh.rs:13:28
[INFO] [stdout]    |
[INFO] [stdout] 13 | const FOUR_MINUS_PI: f64 = (4.0 - PI);
[INFO] [stdout]    |                            ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `factorial_exact`
[INFO] [stdout]  --> src/utils.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn factorial_exact(n: u64) -> u64 { (1..=n).product() }
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `factorial`
[INFO] [stdout]  --> src/utils.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn factorial(n: u64) -> u64 {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/univariate/rayleigh.rs:13:28
[INFO] [stdout]    |
[INFO] [stdout] 13 | const FOUR_MINUS_PI: f64 = (4.0 - PI);
[INFO] [stdout]    |                            ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `factorial_exact`
[INFO] [stdout]  --> src/utils.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn factorial_exact(n: u64) -> u64 { (1..=n).product() }
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `factorial`
[INFO] [stdout]  --> src/utils.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn factorial(n: u64) -> u64 {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.79s
[INFO] running `Command { std: "docker" "inspect" "3003b13fd668aa1d8f6f2500dc464f319b48057f7b56d74bc565897cc9dac925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3003b13fd668aa1d8f6f2500dc464f319b48057f7b56d74bc565897cc9dac925", kill_on_drop: false }`
[INFO] [stdout] 3003b13fd668aa1d8f6f2500dc464f319b48057f7b56d74bc565897cc9dac925
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3dda88c7dfc57557fe87ea87a5cf3254e43f0682b8c7622c2f254ea49be77297
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3dda88c7dfc57557fe87ea87a5cf3254e43f0682b8c7622c2f254ea49be77297", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/univariate/rayleigh.rs:13:28
[INFO] [stderr]    |
[INFO] [stderr] 13 | const FOUR_MINUS_PI: f64 = (4.0 - PI);
[INFO] [stderr]    |                            ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `factorial_exact`
[INFO] [stderr]  --> src/utils.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn factorial_exact(n: u64) -> u64 { (1..=n).product() }
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `factorial`
[INFO] [stderr]  --> src/utils.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn factorial(n: u64) -> u64 {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/univariate/rayleigh.rs:13:28
[INFO] [stderr]    |
[INFO] [stderr] 13 | const FOUR_MINUS_PI: f64 = (4.0 - PI);
[INFO] [stderr]    |                            ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `factorial_exact`
[INFO] [stderr]  --> src/utils.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn factorial_exact(n: u64) -> u64 { (1..=n).product() }
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `factorial`
[INFO] [stderr]  --> src/utils.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn factorial(n: u64) -> u64 {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rstat-b9e1c7834eb28157
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test univariate::arcsine::tests::test_median ... ok
[INFO] [stdout] test univariate::arcsine::tests::test_mean ... ok
[INFO] [stdout] test univariate::arcsine::tests::test_mode ... ok
[INFO] [stdout] test mixture::tests::test_uniform_pair_mixture ... ok
[INFO] [stdout] test univariate::arcsine::tests::test_skewness ... ok
[INFO] [stdout] test probability::tests::test_sample_index_degenerate_n ... ok
[INFO] [stdout] test probability::tests::test_sample_index_degenerate ... ok
[INFO] [stdout] test linalg::tests::test_inverse_lt ... ok
[INFO] [stdout] test linalg::tests::test_choleksy ... ok
[INFO] [stdout] test univariate::arcsine::tests::test_variance ... ok
[INFO] [stdout] test normal::multivariate::tests::test_pdf ... ok
[INFO] [stdout] test params::constraints::tests::test_non_negative ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rstat
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/univariate/rayleigh.rs:13:28
[INFO] [stderr]    |
[INFO] [stderr] 13 | const FOUR_MINUS_PI: f64 = (4.0 - PI);
[INFO] [stderr]    |                            ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --test /opt/rustwide/workdir/src/lib.rs --crate-name rstat -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps -L native=/opt/rustwide/target/debug/build/special-fun-b967bf1041df3dd9/out --cfg 'feature="default"' --extern failure=/opt/rustwide/target/debug/deps/libfailure-b4bb2552572ddbcc.rlib --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-a29cd9a9d4cad4e4.rlib --extern num=/opt/rustwide/target/debug/deps/libnum-2b9a7fe9d06e0a24.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-8499275596ab2240.rlib --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-4addc33e9e93869e.rlib --extern rstat=/opt/rustwide/target/debug/deps/librstat-43b1f75776e97c68.rlib --extern spaces=/opt/rustwide/target/debug/deps/libspaces-884c75179e8a6924.rlib --extern special_fun=/opt/rustwide/target/debug/deps/libspecial_fun-e4b238e32d488cea.rlib -C embed-bitcode=no` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "3dda88c7dfc57557fe87ea87a5cf3254e43f0682b8c7622c2f254ea49be77297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dda88c7dfc57557fe87ea87a5cf3254e43f0682b8c7622c2f254ea49be77297", kill_on_drop: false }`
[INFO] [stdout] 3dda88c7dfc57557fe87ea87a5cf3254e43f0682b8c7622c2f254ea49be77297