[INFO] fetching crate friedrich 0.3.3...
[INFO] testing friedrich-0.3.3 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate friedrich 0.3.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate friedrich 0.3.3 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 friedrich 0.3.3
[INFO] finished tweaking crates.io crate friedrich 0.3.3
[INFO] tweaked toml for crates.io crate friedrich 0.3.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate friedrich 0.3.3 already has a lockfile, it will not be regenerated
[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 nalgebra v0.23.0
[INFO] [stderr]   Downloaded approx v0.4.0
[INFO] [stderr]   Downloaded num-complex v0.3.1
[INFO] [stderr]   Downloaded matrixmultiply v0.2.3
[INFO] [stderr]   Downloaded ndarray v0.13.1
[INFO] [stderr]   Downloaded libm v0.2.1
[INFO] [stderr]   Downloaded simba v0.3.1
[INFO] [stderr]   Downloaded paste v1.0.2
[INFO] [stderr]   Downloaded rand_distr v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] b7b3d13bd096437ea27957f53ea1cca0079c6757112e2da18f8773894cd46764
[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" "b7b3d13bd096437ea27957f53ea1cca0079c6757112e2da18f8773894cd46764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7b3d13bd096437ea27957f53ea1cca0079c6757112e2da18f8773894cd46764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7b3d13bd096437ea27957f53ea1cca0079c6757112e2da18f8773894cd46764", kill_on_drop: false }`
[INFO] [stdout] b7b3d13bd096437ea27957f53ea1cca0079c6757112e2da18f8773894cd46764
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 490e0bdaaa54a95345185cd4148e4a234ec5c29eaff12960aece4443a9153e34
[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" "490e0bdaaa54a95345185cd4148e4a234ec5c29eaff12960aece4443a9153e34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling paste v1.0.2
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling matrixmultiply v0.2.3
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling simba v0.3.1
[INFO] [stderr]    Compiling rand_distr v0.3.0
[INFO] [stderr]    Compiling nalgebra v0.23.0
[INFO] [stderr]    Compiling friedrich v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.66s
[INFO] running `Command { std: "docker" "inspect" "490e0bdaaa54a95345185cd4148e4a234ec5c29eaff12960aece4443a9153e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "490e0bdaaa54a95345185cd4148e4a234ec5c29eaff12960aece4443a9153e34", kill_on_drop: false }`
[INFO] [stdout] 490e0bdaaa54a95345185cd4148e4a234ec5c29eaff12960aece4443a9153e34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 188fef8cc1a85ce7a3d6cdfaad4b4f8455d35efb9882896f259e7ba408e70ed9
[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" "188fef8cc1a85ce7a3d6cdfaad4b4f8455d35efb9882896f259e7ba408e70ed9", kill_on_drop: false }`
[INFO] [stderr]    Compiling friedrich v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "188fef8cc1a85ce7a3d6cdfaad4b4f8455d35efb9882896f259e7ba408e70ed9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "188fef8cc1a85ce7a3d6cdfaad4b4f8455d35efb9882896f259e7ba408e70ed9", kill_on_drop: false }`
[INFO] [stdout] 188fef8cc1a85ce7a3d6cdfaad4b4f8455d35efb9882896f259e7ba408e70ed9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 60964e4f53d1462b5de5ea9e2a3339119154f02dba26dcaafd7f71adb0e60fdd
[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" "60964e4f53d1462b5de5ea9e2a3339119154f02dba26dcaafd7f71adb0e60fdd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/friedrich-adeffe914e598c57
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/friedrich-41890615bdcbdd06
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests friedrich
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/gaussian_process/multivariate_normal.rs - gaussian_process::multivariate_normal::MultivariateNormal (line 12) ... ok
[INFO] [stdout] test src/gaussian_process/mod.rs - gaussian_process::GaussianProcess<kernel::Gaussian, prior::ConstantPrior>::default (line 76) ... ok
[INFO] [stdout] test src/gaussian_process/multivariate_normal.rs - gaussian_process::multivariate_normal::MultivariateNormal (line 32) ... ok
[INFO] [stdout] test src/gaussian_process/mod.rs - gaussian_process::GaussianProcess<KernelType, PriorType>::predict_mean_variance (line 256) ... ok
[INFO] [stdout] test src/gaussian_process/mod.rs - gaussian_process::GaussianProcess<KernelType, PriorType>::sample_at (line 331) ... ok
[INFO] [stdout] test src/gaussian_process/mod.rs - gaussian_process::GaussianProcess<kernel::Gaussian, prior::ConstantPrior>::builder (line 97) ... ok
[INFO] [stdout] test src/gaussian_process/mod.rs - gaussian_process (line 3) ... ok
[INFO] [stdout] test src/gaussian_process/builder.rs - gaussian_process::builder::GaussianProcessBuilder (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.67s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "60964e4f53d1462b5de5ea9e2a3339119154f02dba26dcaafd7f71adb0e60fdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60964e4f53d1462b5de5ea9e2a3339119154f02dba26dcaafd7f71adb0e60fdd", kill_on_drop: false }`
[INFO] [stdout] 60964e4f53d1462b5de5ea9e2a3339119154f02dba26dcaafd7f71adb0e60fdd