[INFO] crate fbleau 0.3.1 is already in cache
[INFO] testing fbleau-0.3.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate fbleau 0.3.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate fbleau 0.3.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fbleau 0.3.1
[INFO] finished tweaking crates.io crate fbleau 0.3.1
[INFO] tweaked toml for crates.io crate fbleau 0.3.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate fbleau 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 051d81d4021213b8f829e4167b0151f115a600934a24b4ebbb937cacbc9443bd
[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" "051d81d4021213b8f829e4167b0151f115a600934a24b4ebbb937cacbc9443bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "051d81d4021213b8f829e4167b0151f115a600934a24b4ebbb937cacbc9443bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "051d81d4021213b8f829e4167b0151f115a600934a24b4ebbb937cacbc9443bd", kill_on_drop: false }`
[INFO] [stdout] 051d81d4021213b8f829e4167b0151f115a600934a24b4ebbb937cacbc9443bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef2291d402da1c391689ed758fc126b1716c2b17b49df9ad0eceb36bb026df7c
[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" "ef2291d402da1c391689ed758fc126b1716c2b17b49df9ad0eceb36bb026df7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling itertools v0.8.1
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling float-cmp v0.5.2
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling ordered-float v0.5.2
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling csv v1.0.2
[INFO] [stderr]    Compiling docopt v1.0.1
[INFO] [stderr]    Compiling fbleau v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.07s
[INFO] running `Command { std: "docker" "inspect" "ef2291d402da1c391689ed758fc126b1716c2b17b49df9ad0eceb36bb026df7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef2291d402da1c391689ed758fc126b1716c2b17b49df9ad0eceb36bb026df7c", kill_on_drop: false }`
[INFO] [stdout] ef2291d402da1c391689ed758fc126b1716c2b17b49df9ad0eceb36bb026df7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7415ecdb184b2a4b4cbe87d5972c4b9a285b80627fb2a6d9859c17f5e9e98ab
[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" "e7415ecdb184b2a4b4cbe87d5972c4b9a285b80627fb2a6d9859c17f5e9e98ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling rustlearn v0.5.0
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling fbleau v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.22s
[INFO] running `Command { std: "docker" "inspect" "e7415ecdb184b2a4b4cbe87d5972c4b9a285b80627fb2a6d9859c17f5e9e98ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7415ecdb184b2a4b4cbe87d5972c4b9a285b80627fb2a6d9859c17f5e9e98ab", kill_on_drop: false }`
[INFO] [stdout] e7415ecdb184b2a4b4cbe87d5972c4b9a285b80627fb2a6d9859c17f5e9e98ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1fa000905785d7b79aa111397ce51f810642eb906af7dfe5b3e93d82c6989ebf
[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" "1fa000905785d7b79aa111397ce51f810642eb906af7dfe5b3e93d82c6989ebf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fbleau-e200a7e8852ecd4b
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test estimates::frequentist::tests::frequentist_init ... ok
[INFO] [stdout] test estimates::knn::tests::knn_predictions_multivariate ... ok
[INFO] [stdout] test estimates::knn::tests::knn_predictions_ties ... ok
[INFO] [stdout] test utils::tests::test_scale ... ok
[INFO] [stdout] test estimates::convergence::tests::forward_checker_init ... ok
[INFO] [stdout] test estimates::knn::tests::knn_forward_errors ... ok
[INFO] [stdout] test estimates::knn::tests::knn_init ... ok
[INFO] [stdout] test estimates::knn::tests::ties_after_max_k ... ok
[INFO] [stdout] test estimates::convergence::tests::absolute_convergence ... ok
[INFO] [stdout] test estimates::knn::tests::knn_forward_predictions ... ok
[INFO] [stdout] test estimates::frequentist::tests::frequentist_estimate_forward ... ok
[INFO] [stdout] test estimates::convergence::tests::forward_checker_convergence ... ok
[INFO] [stdout] test estimates::frequentist::tests::frequentist_estimate_backward ... ok
[INFO] [stdout] test utils::tests::test_vectors_to_ids ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fbleau-e4e0fda300246753
[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] [stderr]    Doc-tests fbleau
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/utils.rs - utils::has_integer_support (line 106) ... ok
[INFO] [stdout] test src/estimates/knn.rs - estimates::knn (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1fa000905785d7b79aa111397ce51f810642eb906af7dfe5b3e93d82c6989ebf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fa000905785d7b79aa111397ce51f810642eb906af7dfe5b3e93d82c6989ebf", kill_on_drop: false }`
[INFO] [stdout] 1fa000905785d7b79aa111397ce51f810642eb906af7dfe5b3e93d82c6989ebf