[INFO] fetching crate dasp_ring_buffer 0.11.0... [INFO] checking dasp_ring_buffer-0.11.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate dasp_ring_buffer 0.11.0 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate dasp_ring_buffer 0.11.0 [INFO] finished tweaking crates.io crate dasp_ring_buffer 0.11.0 [INFO] tweaked toml for crates.io crate dasp_ring_buffer 0.11.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate dasp_ring_buffer 0.11.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 46be6192335dc52c44733db3803b3eb826701b9cdf2f4f3f20cbac867d11bc7d [INFO] running `Command { std: "docker" "start" "-a" "46be6192335dc52c44733db3803b3eb826701b9cdf2f4f3f20cbac867d11bc7d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "46be6192335dc52c44733db3803b3eb826701b9cdf2f4f3f20cbac867d11bc7d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46be6192335dc52c44733db3803b3eb826701b9cdf2f4f3f20cbac867d11bc7d", kill_on_drop: false }` [INFO] [stdout] 46be6192335dc52c44733db3803b3eb826701b9cdf2f4f3f20cbac867d11bc7d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 46337d79151133fe073e98627e03ed0ffd6c0f4a13634151c2577a7039f20bce [INFO] running `Command { std: "docker" "start" "-a" "46337d79151133fe073e98627e03ed0ffd6c0f4a13634151c2577a7039f20bce", kill_on_drop: false }` [INFO] [stderr] Checking dasp_ring_buffer v0.11.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:313:22 [INFO] [stdout] | [INFO] [stdout] 313 | pub fn iter_loop(&self) -> Skip>> { [INFO] [stdout] | ^^^^^ ----------------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 313 | pub fn iter_loop(&self) -> Skip>> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:319:17 [INFO] [stdout] | [INFO] [stdout] 319 | pub fn iter(&self) -> Take>>> { [INFO] [stdout] | ^^^^^ ----------------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 319 | pub fn iter(&self) -> Take>>> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:325:21 [INFO] [stdout] | [INFO] [stdout] 325 | pub fn iter_mut(&mut self) -> Chain, slice::IterMut> [INFO] [stdout] | ^^^^^^^^^ -------------------------- -------------------------- the lifetimes get resolved as `'_` [INFO] [stdout] | | | [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 325 | pub fn iter_mut(&mut self) -> Chain, slice::IterMut<'_, S::Element>> [INFO] [stdout] | +++ +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:609:17 [INFO] [stdout] | [INFO] [stdout] 609 | pub fn iter(&self) -> Chain, slice::Iter> { [INFO] [stdout] | ^^^^^ ----------------------- ----------------------- the lifetimes get resolved as `'_` [INFO] [stdout] | | | [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 609 | pub fn iter(&self) -> Chain, slice::Iter<'_, S::Element>> { [INFO] [stdout] | +++ +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:618:21 [INFO] [stdout] | [INFO] [stdout] 618 | pub fn iter_mut(&mut self) -> Chain, slice::IterMut> [INFO] [stdout] | ^^^^^^^^^ -------------------------- -------------------------- the lifetimes get resolved as `'_` [INFO] [stdout] | | | [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 618 | pub fn iter_mut(&mut self) -> Chain, slice::IterMut<'_, S::Element>> [INFO] [stdout] | +++ +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:765:18 [INFO] [stdout] | [INFO] [stdout] 765 | pub fn drain(&mut self) -> DrainBounded { [INFO] [stdout] | ^^^^^^^^^ --------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 765 | pub fn drain(&mut self) -> DrainBounded<'_, S> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:313:22 [INFO] [stdout] | [INFO] [stdout] 313 | pub fn iter_loop(&self) -> Skip>> { [INFO] [stdout] | ^^^^^ ----------------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 313 | pub fn iter_loop(&self) -> Skip>> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:319:17 [INFO] [stdout] | [INFO] [stdout] 319 | pub fn iter(&self) -> Take>>> { [INFO] [stdout] | ^^^^^ ----------------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 319 | pub fn iter(&self) -> Take>>> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:325:21 [INFO] [stdout] | [INFO] [stdout] 325 | pub fn iter_mut(&mut self) -> Chain, slice::IterMut> [INFO] [stdout] | ^^^^^^^^^ -------------------------- -------------------------- the lifetimes get resolved as `'_` [INFO] [stdout] | | | [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 325 | pub fn iter_mut(&mut self) -> Chain, slice::IterMut<'_, S::Element>> [INFO] [stdout] | +++ +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:609:17 [INFO] [stdout] | [INFO] [stdout] 609 | pub fn iter(&self) -> Chain, slice::Iter> { [INFO] [stdout] | ^^^^^ ----------------------- ----------------------- the lifetimes get resolved as `'_` [INFO] [stdout] | | | [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 609 | pub fn iter(&self) -> Chain, slice::Iter<'_, S::Element>> { [INFO] [stdout] | +++ +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:618:21 [INFO] [stdout] | [INFO] [stdout] 618 | pub fn iter_mut(&mut self) -> Chain, slice::IterMut> [INFO] [stdout] | ^^^^^^^^^ -------------------------- -------------------------- the lifetimes get resolved as `'_` [INFO] [stdout] | | | [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 618 | pub fn iter_mut(&mut self) -> Chain, slice::IterMut<'_, S::Element>> [INFO] [stdout] | +++ +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:765:18 [INFO] [stdout] | [INFO] [stdout] 765 | pub fn drain(&mut self) -> DrainBounded { [INFO] [stdout] | ^^^^^^^^^ --------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 765 | pub fn drain(&mut self) -> DrainBounded<'_, S> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `from` that must be used [INFO] [stdout] --> tests/ring_buffer.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | ring_buffer::Bounded::from(Vec::::new()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 24 | let _ = ring_buffer::Bounded::from(Vec::::new()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.52s [INFO] running `Command { std: "docker" "inspect" "46337d79151133fe073e98627e03ed0ffd6c0f4a13634151c2577a7039f20bce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46337d79151133fe073e98627e03ed0ffd6c0f4a13634151c2577a7039f20bce", kill_on_drop: false }` [INFO] [stdout] 46337d79151133fe073e98627e03ed0ffd6c0f4a13634151c2577a7039f20bce