[INFO] fetching crate slice-utils 2.2.1... [INFO] checking slice-utils-2.2.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate slice-utils 2.2.1 into /workspace/builds/worker-5-tc1/source [INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain [INFO] started tweaking crates.io crate slice-utils 2.2.1 [INFO] finished tweaking crates.io crate slice-utils 2.2.1 [INFO] tweaked toml for crates.io crate slice-utils 2.2.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate slice-utils 2.2.1 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 1 package to latest compatible version [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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4f67512dcc22187b6e2457717d58a54cd06f81c25197562b8518f449963fc534 [INFO] running `Command { std: "docker" "start" "-a" "4f67512dcc22187b6e2457717d58a54cd06f81c25197562b8518f449963fc534", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4f67512dcc22187b6e2457717d58a54cd06f81c25197562b8518f449963fc534", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f67512dcc22187b6e2457717d58a54cd06f81c25197562b8518f449963fc534", kill_on_drop: false }` [INFO] [stdout] 4f67512dcc22187b6e2457717d58a54cd06f81c25197562b8518f449963fc534 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b8b56779d6b20a8318d661cdde8b841fb054fa34cea569e1e2de2fc721f09f0f [INFO] running `Command { std: "docker" "start" "-a" "b8b56779d6b20a8318d661cdde8b841fb054fa34cea569e1e2de2fc721f09f0f", kill_on_drop: false }` [INFO] [stderr] Checking slice-utils v2.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:222:37 [INFO] [stdout] | [INFO] [stdout] 222 | fn array_chunks(&self) -> ArrayChunksBorrowed { [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] 222 | fn array_chunks(&self) -> ArrayChunksBorrowed<'_, Self, N> { [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:251:38 [INFO] [stdout] | [INFO] [stdout] 251 | fn array_windows(&self) -> ArrayWindowsBorrowed { [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] 251 | fn array_windows(&self) -> ArrayWindowsBorrowed<'_, Self, N> { [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:276:15 [INFO] [stdout] | [INFO] [stdout] 276 | fn chunks(&self, size: usize) -> ChunksBorrowed { [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] 276 | fn chunks(&self, size: usize) -> ChunksBorrowed<'_, Self> { [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:336:13 [INFO] [stdout] | [INFO] [stdout] 336 | fn iter(&self) -> IterBorrowed { [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] 336 | fn iter(&self) -> IterBorrowed<'_, Self> { [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:365:16 [INFO] [stdout] | [INFO] [stdout] 365 | fn windows(&self, size: usize) -> WindowsBorrowed { [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] 365 | fn windows(&self, size: usize) -> WindowsBorrowed<'_, Self> { [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:396:18 [INFO] [stdout] | [INFO] [stdout] 396 | fn split_mut(&mut self, at: usize) -> Option<(SplitMut, SplitMut)> [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] 396 | fn split_mut(&mut self, at: usize) -> Option<(SplitMut<'_, Self>, SplitMut<'_, Self>)> [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:524:15 [INFO] [stdout] | [INFO] [stdout] 524 | fn chunks(&self, size: usize) -> ChunksOwned { [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] 524 | fn chunks(&self, size: usize) -> ChunksOwned<'_, Self> { [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:607:16 [INFO] [stdout] | [INFO] [stdout] 607 | fn windows(&self, size: usize) -> WindowsOwned { [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] 607 | fn windows(&self, size: usize) -> WindowsOwned<'_, Self> { [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:222:37 [INFO] [stdout] | [INFO] [stdout] 222 | fn array_chunks(&self) -> ArrayChunksBorrowed { [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] 222 | fn array_chunks(&self) -> ArrayChunksBorrowed<'_, Self, N> { [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:251:38 [INFO] [stdout] | [INFO] [stdout] 251 | fn array_windows(&self) -> ArrayWindowsBorrowed { [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] 251 | fn array_windows(&self) -> ArrayWindowsBorrowed<'_, Self, N> { [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:276:15 [INFO] [stdout] | [INFO] [stdout] 276 | fn chunks(&self, size: usize) -> ChunksBorrowed { [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] 276 | fn chunks(&self, size: usize) -> ChunksBorrowed<'_, Self> { [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:336:13 [INFO] [stdout] | [INFO] [stdout] 336 | fn iter(&self) -> IterBorrowed { [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] 336 | fn iter(&self) -> IterBorrowed<'_, Self> { [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:365:16 [INFO] [stdout] | [INFO] [stdout] 365 | fn windows(&self, size: usize) -> WindowsBorrowed { [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] 365 | fn windows(&self, size: usize) -> WindowsBorrowed<'_, Self> { [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:396:18 [INFO] [stdout] | [INFO] [stdout] 396 | fn split_mut(&mut self, at: usize) -> Option<(SplitMut, SplitMut)> [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] 396 | fn split_mut(&mut self, at: usize) -> Option<(SplitMut<'_, Self>, SplitMut<'_, Self>)> [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:524:15 [INFO] [stdout] | [INFO] [stdout] 524 | fn chunks(&self, size: usize) -> ChunksOwned { [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] 524 | fn chunks(&self, size: usize) -> ChunksOwned<'_, Self> { [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:607:16 [INFO] [stdout] | [INFO] [stdout] 607 | fn windows(&self, size: usize) -> WindowsOwned { [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] 607 | fn windows(&self, size: usize) -> WindowsOwned<'_, Self> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.58s [INFO] running `Command { std: "docker" "inspect" "b8b56779d6b20a8318d661cdde8b841fb054fa34cea569e1e2de2fc721f09f0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8b56779d6b20a8318d661cdde8b841fb054fa34cea569e1e2de2fc721f09f0f", kill_on_drop: false }` [INFO] [stdout] b8b56779d6b20a8318d661cdde8b841fb054fa34cea569e1e2de2fc721f09f0f