[INFO] fetching crate qsv-stats 0.3.6...
[INFO] testing qsv-stats-0.3.6 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate qsv-stats 0.3.6 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate qsv-stats 0.3.6 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qsv-stats 0.3.6
[INFO] finished tweaking crates.io crate qsv-stats 0.3.6
[INFO] tweaked toml for crates.io crate qsv-stats 0.3.6 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d14ea1ef4cd96a73838fff6b212542b9f93940db9a5f7f029af086e26be451ed
[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" "d14ea1ef4cd96a73838fff6b212542b9f93940db9a5f7f029af086e26be451ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d14ea1ef4cd96a73838fff6b212542b9f93940db9a5f7f029af086e26be451ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14ea1ef4cd96a73838fff6b212542b9f93940db9a5f7f029af086e26be451ed", kill_on_drop: false }`
[INFO] [stdout] d14ea1ef4cd96a73838fff6b212542b9f93940db9a5f7f029af086e26be451ed
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73d80672fba5982d738c5d20986e7962edf48312a331879aea4402eda68ad293
[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" "73d80672fba5982d738c5d20986e7962edf48312a331879aea4402eda68ad293", kill_on_drop: false }`
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling qsv-stats v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/online.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / pub fn stddev<'a, I, T>(x: I) -> f64
[INFO] [stdout] 11 | | where
[INFO] [stdout] 12 | |     I: IntoIterator<Item = T>,
[INFO] [stdout] 13 | |     T: Into<&'a f64>,
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |     stddev(it)
[INFO] [stdout]    | |     ---------- recursive call site
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^ cannot return without recursing
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/online.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | / pub fn variance<'a, I, T>(x: I) -> f64
[INFO] [stdout] 21 | | where
[INFO] [stdout] 22 | |     I: IntoIterator<Item = T>,
[INFO] [stdout] 23 | |     T: Into<&'a f64>,
[INFO] [stdout] ...  |
[INFO] [stdout] 26 | |     variance(it)
[INFO] [stdout]    | |     ------------ recursive call site
[INFO] [stdout] 27 | | }
[INFO] [stdout]    | |_^ cannot return without recursing
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/online.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / pub fn mean<'a, I, T>(x: I) -> f64
[INFO] [stdout] 31 | | where
[INFO] [stdout] 32 | |     I: IntoIterator<Item = T>,
[INFO] [stdout] 33 | |     T: Into<&'a f64>,
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |     mean(it)
[INFO] [stdout]    | |     -------- recursive call site
[INFO] [stdout] 37 | | }
[INFO] [stdout]    | |_^ cannot return without recursing
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.99s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "73d80672fba5982d738c5d20986e7962edf48312a331879aea4402eda68ad293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73d80672fba5982d738c5d20986e7962edf48312a331879aea4402eda68ad293", kill_on_drop: false }`
[INFO] [stdout] 73d80672fba5982d738c5d20986e7962edf48312a331879aea4402eda68ad293
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "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] d0d1bff39e1f227bcd896a1dddd49e471c3a74067eeccea65efe7d25f1ec451e
[INFO] running `Command { std: "docker" "start" "-a" "d0d1bff39e1f227bcd896a1dddd49e471c3a74067eeccea65efe7d25f1ec451e", kill_on_drop: false }`
[INFO] [stderr]    Compiling qsv-stats v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/online.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / pub fn stddev<'a, I, T>(x: I) -> f64
[INFO] [stdout] 11 | | where
[INFO] [stdout] 12 | |     I: IntoIterator<Item = T>,
[INFO] [stdout] 13 | |     T: Into<&'a f64>,
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |     stddev(it)
[INFO] [stdout]    | |     ---------- recursive call site
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^ cannot return without recursing
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/online.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | / pub fn variance<'a, I, T>(x: I) -> f64
[INFO] [stdout] 21 | | where
[INFO] [stdout] 22 | |     I: IntoIterator<Item = T>,
[INFO] [stdout] 23 | |     T: Into<&'a f64>,
[INFO] [stdout] ...  |
[INFO] [stdout] 26 | |     variance(it)
[INFO] [stdout]    | |     ------------ recursive call site
[INFO] [stdout] 27 | | }
[INFO] [stdout]    | |_^ cannot return without recursing
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/online.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / pub fn mean<'a, I, T>(x: I) -> f64
[INFO] [stdout] 31 | | where
[INFO] [stdout] 32 | |     I: IntoIterator<Item = T>,
[INFO] [stdout] 33 | |     T: Into<&'a f64>,
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |     mean(it)
[INFO] [stdout]    | |     -------- recursive call site
[INFO] [stdout] 37 | | }
[INFO] [stdout]    | |_^ cannot return without recursing
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/online.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / pub fn stddev<'a, I, T>(x: I) -> f64
[INFO] [stdout] 11 | | where
[INFO] [stdout] 12 | |     I: IntoIterator<Item = T>,
[INFO] [stdout] 13 | |     T: Into<&'a f64>,
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |     stddev(it)
[INFO] [stdout]    | |     ---------- recursive call site
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^ cannot return without recursing
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/online.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | / pub fn variance<'a, I, T>(x: I) -> f64
[INFO] [stdout] 21 | | where
[INFO] [stdout] 22 | |     I: IntoIterator<Item = T>,
[INFO] [stdout] 23 | |     T: Into<&'a f64>,
[INFO] [stdout] ...  |
[INFO] [stdout] 26 | |     variance(it)
[INFO] [stdout]    | |     ------------ recursive call site
[INFO] [stdout] 27 | | }
[INFO] [stdout]    | |_^ cannot return without recursing
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/online.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / pub fn mean<'a, I, T>(x: I) -> f64
[INFO] [stdout] 31 | | where
[INFO] [stdout] 32 | |     I: IntoIterator<Item = T>,
[INFO] [stdout] 33 | |     T: Into<&'a f64>,
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |     mean(it)
[INFO] [stdout]    | |     -------- recursive call site
[INFO] [stdout] 37 | | }
[INFO] [stdout]    | |_^ cannot return without recursing
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `Command { std: "docker" "inspect" "d0d1bff39e1f227bcd896a1dddd49e471c3a74067eeccea65efe7d25f1ec451e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0d1bff39e1f227bcd896a1dddd49e471c3a74067eeccea65efe7d25f1ec451e", kill_on_drop: false }`
[INFO] [stdout] d0d1bff39e1f227bcd896a1dddd49e471c3a74067eeccea65efe7d25f1ec451e
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", 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] c32d47fcdc1f60a058d24c8c387c22075ead18905b20aa2d3db63a0bab04cd74
[INFO] running `Command { std: "docker" "start" "-a" "c32d47fcdc1f60a058d24c8c387c22075ead18905b20aa2d3db63a0bab04cd74", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stdout] running 16 tests
[INFO] [stderr]   --> src/online.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | / pub fn stddev<'a, I, T>(x: I) -> f64
[INFO] [stderr] 11 | | where
[INFO] [stderr] 12 | |     I: IntoIterator<Item = T>,
[INFO] [stderr] 13 | |     T: Into<&'a f64>,
[INFO] [stderr] ...  |
[INFO] [stderr] 16 | |     stddev(it)
[INFO] [stderr]    | |     ---------- recursive call site
[INFO] [stderr] 17 | | }
[INFO] [stderr]    | |_^ cannot return without recursing
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]   --> src/online.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | / pub fn variance<'a, I, T>(x: I) -> f64
[INFO] [stderr] 21 | | where
[INFO] [stderr] 22 | |     I: IntoIterator<Item = T>,
[INFO] [stderr] 23 | |     T: Into<&'a f64>,
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |     variance(it)
[INFO] [stderr]    | |     ------------ recursive call site
[INFO] [stderr] 27 | | }
[INFO] [stderr]    | |_^ cannot return without recursing
[INFO] [stderr]    |
[INFO] [stderr]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]   --> src/online.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | / pub fn mean<'a, I, T>(x: I) -> f64
[INFO] [stderr] 31 | | where
[INFO] [stderr] 32 | |     I: IntoIterator<Item = T>,
[INFO] [stderr] 33 | |     T: Into<&'a f64>,
[INFO] [stderr] ...  |
[INFO] [stderr] 36 | |     mean(it)
[INFO] [stderr]    | |     -------- recursive call site
[INFO] [stderr] 37 | | }
[INFO] [stderr]    | |_^ cannot return without recursing
[INFO] [stderr]    |
[INFO] [stderr]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr] 
[INFO] [stderr] warning: `qsv-stats` (lib) generated 3 warnings
[INFO] [stderr] warning: `qsv-stats` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stats-38653d4c6b95cdd2)
[INFO] [stdout] test minmax::test::minmax ... ok
[INFO] [stdout] test frequency::test::ranked ... ok
[INFO] [stdout] test online::test::stddev ... ok
[INFO] [stdout] test online::test::stddev_empty ... ok
[INFO] [stdout] test online::test::stddev_many ... ok
[INFO] [stdout] test test::options ... ok
[INFO] [stdout] test unsorted::test::median_floats ... ok
[INFO] [stdout] test unsorted::test::mode_stream ... ok
[INFO] [stdout] test unsorted::test::modes_floats ... ok
[INFO] [stdout] test unsorted::test::modes_stream ... ok
[INFO] [stdout] test unsorted::test::quartiles_floats ... ok
[INFO] [stdout] test unsorted::test::quartiles_stream ... ok
[INFO] [stdout] test minmax::test::minmax_merge_empty ... ok
[INFO] [stdout] test unsorted::test::median_stream ... ok
[INFO] [stdout] test minmax::test::minmax_empty ... ok
[INFO] [stdout] test unsorted::test::mode_floats ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stats
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/unsorted.rs - unsorted::modes (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.94s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c32d47fcdc1f60a058d24c8c387c22075ead18905b20aa2d3db63a0bab04cd74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c32d47fcdc1f60a058d24c8c387c22075ead18905b20aa2d3db63a0bab04cd74", kill_on_drop: false }`
[INFO] [stdout] c32d47fcdc1f60a058d24c8c387c22075ead18905b20aa2d3db63a0bab04cd74