[INFO] fetching crate samplics 0.1.1...
[INFO] testing samplics-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate samplics 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate samplics 0.1.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate samplics 0.1.1
[INFO] finished tweaking crates.io crate samplics 0.1.1
[INFO] tweaked toml for crates.io crate samplics 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate samplics 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 6bf30e643355ef06cf2cd1cd040d9cc491ca814df90eb2472526d2b735c781d7
[INFO] running `Command { std: "docker" "start" "-a" "6bf30e643355ef06cf2cd1cd040d9cc491ca814df90eb2472526d2b735c781d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bf30e643355ef06cf2cd1cd040d9cc491ca814df90eb2472526d2b735c781d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf30e643355ef06cf2cd1cd040d9cc491ca814df90eb2472526d2b735c781d7", kill_on_drop: false }`
[INFO] [stdout] 6bf30e643355ef06cf2cd1cd040d9cc491ca814df90eb2472526d2b735c781d7
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 437520082ae00970413fb9472edb1cd33f01342ecfe18cf8d7f9b3c06cd0944d
[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" "437520082ae00970413fb9472edb1cd33f01342ecfe18cf8d7f9b3c06cd0944d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.43
[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 ndarray v0.13.1
[INFO] [stderr]    Compiling samplics v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.76s
[INFO] running `Command { std: "docker" "inspect" "437520082ae00970413fb9472edb1cd33f01342ecfe18cf8d7f9b3c06cd0944d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "437520082ae00970413fb9472edb1cd33f01342ecfe18cf8d7f9b3c06cd0944d", kill_on_drop: false }`
[INFO] [stdout] 437520082ae00970413fb9472edb1cd33f01342ecfe18cf8d7f9b3c06cd0944d
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 2bb7e0f0584cb9990934d8db2c20419e6499ecc854d049243e10e4b1208914c8
[INFO] running `Command { std: "docker" "start" "-a" "2bb7e0f0584cb9990934d8db2c20419e6499ecc854d049243e10e4b1208914c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling bstr v0.2.12
[INFO] [stderr]    Compiling tinytemplate v1.0.4
[INFO] [stderr]    Compiling criterion-plot v0.4.2
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling criterion v0.3.2
[INFO] [stderr]    Compiling samplics v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.29s
[INFO] running `Command { std: "docker" "inspect" "2bb7e0f0584cb9990934d8db2c20419e6499ecc854d049243e10e4b1208914c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bb7e0f0584cb9990934d8db2c20419e6499ecc854d049243e10e4b1208914c8", kill_on_drop: false }`
[INFO] [stdout] 2bb7e0f0584cb9990934d8db2c20419e6499ecc854d049243e10e4b1208914c8
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6274bd2dd17d16d997f70d36b850e6d23cf943664d67ae61aaea74f46b1081e7
[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" "6274bd2dd17d16d997f70d36b850e6d23cf943664d67ae61aaea74f46b1081e7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/samplics-f5eada044328ccd1)
[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] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-eda81bd3cb5ea721)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test sampling::test_sample::srs_sample ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests samplics
[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] running `Command { std: "docker" "inspect" "6274bd2dd17d16d997f70d36b850e6d23cf943664d67ae61aaea74f46b1081e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6274bd2dd17d16d997f70d36b850e6d23cf943664d67ae61aaea74f46b1081e7", kill_on_drop: false }`
[INFO] [stdout] 6274bd2dd17d16d997f70d36b850e6d23cf943664d67ae61aaea74f46b1081e7