[INFO] fetching crate rustats 0.1.2...
[INFO] testing rustats-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rustats 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rustats 0.1.2 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 rustats 0.1.2
[INFO] finished tweaking crates.io crate rustats 0.1.2
[INFO] tweaked toml for crates.io crate rustats 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] 87eaede92ab59bdce05e9ab38e87772e5ed8b81edaaf9df2e87505044718ec39
[INFO] running `Command { std: "docker" "start" "-a" "87eaede92ab59bdce05e9ab38e87772e5ed8b81edaaf9df2e87505044718ec39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87eaede92ab59bdce05e9ab38e87772e5ed8b81edaaf9df2e87505044718ec39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87eaede92ab59bdce05e9ab38e87772e5ed8b81edaaf9df2e87505044718ec39", kill_on_drop: false }`
[INFO] [stdout] 87eaede92ab59bdce05e9ab38e87772e5ed8b81edaaf9df2e87505044718ec39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] c6e126eb246a88eaa4cba413b5bbcb7e4786430b556a00cbf8af695991041480
[INFO] running `Command { std: "docker" "start" "-a" "c6e126eb246a88eaa4cba413b5bbcb7e4786430b556a00cbf8af695991041480", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling getrandom v0.1.16
[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 rand_distr v0.3.0
[INFO] [stderr]    Compiling rustats v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.97s
[INFO] running `Command { std: "docker" "inspect" "c6e126eb246a88eaa4cba413b5bbcb7e4786430b556a00cbf8af695991041480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6e126eb246a88eaa4cba413b5bbcb7e4786430b556a00cbf8af695991041480", kill_on_drop: false }`
[INFO] [stdout] c6e126eb246a88eaa4cba413b5bbcb7e4786430b556a00cbf8af695991041480
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] c19b3330bab3848681d72ba88beacd050ada990d96ac6aee5cf480b6c51175fb
[INFO] running `Command { std: "docker" "start" "-a" "c19b3330bab3848681d72ba88beacd050ada990d96ac6aee5cf480b6c51175fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustats v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "c19b3330bab3848681d72ba88beacd050ada990d96ac6aee5cf480b6c51175fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c19b3330bab3848681d72ba88beacd050ada990d96ac6aee5cf480b6c51175fb", kill_on_drop: false }`
[INFO] [stdout] c19b3330bab3848681d72ba88beacd050ada990d96ac6aee5cf480b6c51175fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 391b350a6aacac2bf9ac5e693daba39f68204303ff0d33145c47986195628764
[INFO] running `Command { std: "docker" "start" "-a" "391b350a6aacac2bf9ac5e693daba39f68204303ff0d33145c47986195628764", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustats-bc13b02288edc2c0)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test fundamental::tests::stddev_works ... ok
[INFO] [stdout] test hypothesis_testings::tests::mann_whitney_u_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustats
[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" "391b350a6aacac2bf9ac5e693daba39f68204303ff0d33145c47986195628764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "391b350a6aacac2bf9ac5e693daba39f68204303ff0d33145c47986195628764", kill_on_drop: false }`
[INFO] [stdout] 391b350a6aacac2bf9ac5e693daba39f68204303ff0d33145c47986195628764