[INFO] fetching crate online-statistics 0.2.6...
[INFO] checking online-statistics-0.2.6 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate online-statistics 0.2.6 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate online-statistics 0.2.6
[INFO] finished tweaking crates.io crate online-statistics 0.2.6
[INFO] tweaked toml for crates.io crate online-statistics 0.2.6 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate online-statistics 0.2.6 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding ordered-float v3.9.2 (available: v5.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c99fcfe7c5af8f47805d1d6a2fcb5935a9f191fea95b6e7eb85c64adfc1c18f
[INFO] running `Command { std: "docker" "start" "-a" "9c99fcfe7c5af8f47805d1d6a2fcb5935a9f191fea95b6e7eb85c64adfc1c18f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c99fcfe7c5af8f47805d1d6a2fcb5935a9f191fea95b6e7eb85c64adfc1c18f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c99fcfe7c5af8f47805d1d6a2fcb5935a9f191fea95b6e7eb85c64adfc1c18f", kill_on_drop: false }`
[INFO] [stdout] 9c99fcfe7c5af8f47805d1d6a2fcb5935a9f191fea95b6e7eb85c64adfc1c18f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07d4eb99232fd03a80ff59864332be82e8a22ec2c507165adba3c4e016712502
[INFO] running `Command { std: "docker" "start" "-a" "07d4eb99232fd03a80ff59864332be82e8a22ec2c507165adba3c4e016712502", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking ordered-float v3.9.2
[INFO] [stderr]     Checking online-statistics v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/rolling.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 |         to_roll: &'a mut dyn RollableUnivariate<F>,
[INFO] [stdout]    |                   ^^ this lifetime flows to the output
[INFO] [stdout] 41 |         window_size: usize,
[INFO] [stdout] 42 |     ) -> Result<Self, &str> {
[INFO] [stdout]    |                       ---- the lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     ) -> Result<Self, &'a str> {
[INFO] [stdout]    |                        ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/rolling.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 |         to_roll: &'a mut dyn RollableUnivariate<F>,
[INFO] [stdout]    |                   ^^ this lifetime flows to the output
[INFO] [stdout] 41 |         window_size: usize,
[INFO] [stdout] 42 |     ) -> Result<Self, &str> {
[INFO] [stdout]    |                       ---- the lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     ) -> Result<Self, &'a str> {
[INFO] [stdout]    |                        ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.76s
[INFO] running `Command { std: "docker" "inspect" "07d4eb99232fd03a80ff59864332be82e8a22ec2c507165adba3c4e016712502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07d4eb99232fd03a80ff59864332be82e8a22ec2c507165adba3c4e016712502", kill_on_drop: false }`
[INFO] [stdout] 07d4eb99232fd03a80ff59864332be82e8a22ec2c507165adba3c4e016712502