[INFO] fetching crate online-statistics 0.2.6...
[INFO] checking online-statistics-0.2.6 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate online-statistics 0.2.6 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate online-statistics 0.2.6 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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: v4.3.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 750e59009eccc8231075cc4101b4abf8091ded97aa539639c89fcd9f3b18d263
[INFO] running `Command { std: "docker" "start" "-a" "750e59009eccc8231075cc4101b4abf8091ded97aa539639c89fcd9f3b18d263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "750e59009eccc8231075cc4101b4abf8091ded97aa539639c89fcd9f3b18d263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "750e59009eccc8231075cc4101b4abf8091ded97aa539639c89fcd9f3b18d263", kill_on_drop: false }`
[INFO] [stdout] 750e59009eccc8231075cc4101b4abf8091ded97aa539639c89fcd9f3b18d263
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aae4d3296558d89250c95cdf6eab55cc084699c195a17651a791381de0b5ea7f
[INFO] running `Command { std: "docker" "start" "-a" "aae4d3296558d89250c95cdf6eab55cc084699c195a17651a791381de0b5ea7f", kill_on_drop: false }`
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking serde v1.0.210
[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 v1.0.128
[INFO] [stderr]     Checking ordered-float v3.9.2
[INFO] [stderr]     Checking online-statistics v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/rolling.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<'a, F: Float + FromPrimitive + AddAssign + SubAssign> Rolling<'a, F> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 42 |     ) -> Result<Self, &str> {
[INFO] [stdout]    |                       ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/rolling.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<'a, F: Float + FromPrimitive + AddAssign + SubAssign> Rolling<'a, F> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 42 |     ) -> Result<Self, &str> {
[INFO] [stdout]    |                       ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.70s
[INFO] running `Command { std: "docker" "inspect" "aae4d3296558d89250c95cdf6eab55cc084699c195a17651a791381de0b5ea7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aae4d3296558d89250c95cdf6eab55cc084699c195a17651a791381de0b5ea7f", kill_on_drop: false }`
[INFO] [stdout] aae4d3296558d89250c95cdf6eab55cc084699c195a17651a791381de0b5ea7f