[INFO] fetching crate str-chunks 0.2.0...
[INFO] testing str-chunks-0.2.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate str-chunks 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate str-chunks 0.2.0
[INFO] finished tweaking crates.io crate str-chunks 0.2.0
[INFO] tweaked toml for crates.io crate str-chunks 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate str-chunks 0.2.0 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8655ac9b63b573a4c49a0fdef6d1cb4d23f82e2766892aa7e1fee25c7108715
[INFO] running `Command { std: "docker" "start" "-a" "e8655ac9b63b573a4c49a0fdef6d1cb4d23f82e2766892aa7e1fee25c7108715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8655ac9b63b573a4c49a0fdef6d1cb4d23f82e2766892aa7e1fee25c7108715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8655ac9b63b573a4c49a0fdef6d1cb4d23f82e2766892aa7e1fee25c7108715", kill_on_drop: false }`
[INFO] [stdout] e8655ac9b63b573a4c49a0fdef6d1cb4d23f82e2766892aa7e1fee25c7108715
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 186b680b9c9984a288c612d7b61337470c0c18add14a08c8c9270b5786c73f68
[INFO] running `Command { std: "docker" "start" "-a" "186b680b9c9984a288c612d7b61337470c0c18add14a08c8c9270b5786c73f68", kill_on_drop: false }`
[INFO] [stderr]    Compiling str-chunks v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/str_chunks.rs:92:19
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks;
[INFO] [stdout]    |                   ^^^^^                        ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks<'_>;
[INFO] [stdout]    |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:123:25
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact;
[INFO] [stdout]     |                         ^^^^^                        ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact<'_>;
[INFO] [stdout]     |                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:154:20
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks;
[INFO] [stdout]     |                    ^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks<'_>;
[INFO] [stdout]     |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:187:26
[INFO] [stdout]     |
[INFO] [stdout] 187 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact;
[INFO] [stdout]     |                          ^^^^^                        ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 187 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact<'_>;
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:190:19
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks {
[INFO] [stdout]     |                   ^^^^^                        ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks<'_> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:195:25
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact {
[INFO] [stdout]     |                         ^^^^^                        ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact<'_> {
[INFO] [stdout]     |                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:200:20
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks {
[INFO] [stdout]     |                    ^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks<'_> {
[INFO] [stdout]     |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:205:26
[INFO] [stdout]     |
[INFO] [stdout] 205 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact {
[INFO] [stdout]     |                          ^^^^^                        ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 205 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact<'_> {
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:216:26
[INFO] [stdout]     |
[INFO] [stdout] 216 | fn valid_split_points(s: &str) -> Chain<CharIndices, Once<(usize, char)>> {
[INFO] [stdout]     |                          ^^^^           ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 216 | fn valid_split_points(s: &str) -> Chain<CharIndices<'_>, Once<(usize, char)>> {
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "186b680b9c9984a288c612d7b61337470c0c18add14a08c8c9270b5786c73f68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "186b680b9c9984a288c612d7b61337470c0c18add14a08c8c9270b5786c73f68", kill_on_drop: false }`
[INFO] [stdout] 186b680b9c9984a288c612d7b61337470c0c18add14a08c8c9270b5786c73f68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33cb92963087329ee119974a7a55f162a1b1812478d8e6357d10d0e4798ed737
[INFO] running `Command { std: "docker" "start" "-a" "33cb92963087329ee119974a7a55f162a1b1812478d8e6357d10d0e4798ed737", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/str_chunks.rs:92:19
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks;
[INFO] [stdout]    |                   ^^^^^                        ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks<'_>;
[INFO] [stdout]    |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:123:25
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact;
[INFO] [stdout]     |                         ^^^^^                        ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact<'_>;
[INFO] [stdout]     |                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:154:20
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks;
[INFO] [stdout]     |                    ^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks<'_>;
[INFO] [stdout]     |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling str-chunks v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:187:26
[INFO] [stdout]     |
[INFO] [stdout] 187 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact;
[INFO] [stdout]     |                          ^^^^^                        ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 187 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact<'_>;
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:190:19
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks {
[INFO] [stdout]     |                   ^^^^^                        ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks<'_> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:195:25
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact {
[INFO] [stdout]     |                         ^^^^^                        ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact<'_> {
[INFO] [stdout]     |                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:200:20
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks {
[INFO] [stdout]     |                    ^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks<'_> {
[INFO] [stdout]     |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:205:26
[INFO] [stdout]     |
[INFO] [stdout] 205 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact {
[INFO] [stdout]     |                          ^^^^^                        ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 205 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact<'_> {
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:216:26
[INFO] [stdout]     |
[INFO] [stdout] 216 | fn valid_split_points(s: &str) -> Chain<CharIndices, Once<(usize, char)>> {
[INFO] [stdout]     |                          ^^^^           ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 216 | fn valid_split_points(s: &str) -> Chain<CharIndices<'_>, Once<(usize, char)>> {
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/str_chunks.rs:92:19
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks;
[INFO] [stdout]    |                   ^^^^^                        ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks<'_>;
[INFO] [stdout]    |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:123:25
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact;
[INFO] [stdout]     |                         ^^^^^                        ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact<'_>;
[INFO] [stdout]     |                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:154:20
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks;
[INFO] [stdout]     |                    ^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks<'_>;
[INFO] [stdout]     |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:187:26
[INFO] [stdout]     |
[INFO] [stdout] 187 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact;
[INFO] [stdout]     |                          ^^^^^                        ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 187 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact<'_>;
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:190:19
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks {
[INFO] [stdout]     |                   ^^^^^                        ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks<'_> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:195:25
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact {
[INFO] [stdout]     |                         ^^^^^                        ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact<'_> {
[INFO] [stdout]     |                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:200:20
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks {
[INFO] [stdout]     |                    ^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks<'_> {
[INFO] [stdout]     |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:205:26
[INFO] [stdout]     |
[INFO] [stdout] 205 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact {
[INFO] [stdout]     |                          ^^^^^                        ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 205 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact<'_> {
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str_chunks.rs:216:26
[INFO] [stdout]     |
[INFO] [stdout] 216 | fn valid_split_points(s: &str) -> Chain<CharIndices, Once<(usize, char)>> {
[INFO] [stdout]     |                          ^^^^           ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 216 | fn valid_split_points(s: &str) -> Chain<CharIndices<'_>, Once<(usize, char)>> {
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "33cb92963087329ee119974a7a55f162a1b1812478d8e6357d10d0e4798ed737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33cb92963087329ee119974a7a55f162a1b1812478d8e6357d10d0e4798ed737", kill_on_drop: false }`
[INFO] [stdout] 33cb92963087329ee119974a7a55f162a1b1812478d8e6357d10d0e4798ed737
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ca42794092b67239d521c0a0e1e77a8d0f8e87e296b578aa1e697b49b29d9c89
[INFO] running `Command { std: "docker" "start" "-a" "ca42794092b67239d521c0a0e1e77a8d0f8e87e296b578aa1e697b49b29d9c89", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/str_chunks.rs:92:19
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks;
[INFO] [stderr]    |                   ^^^^^                        ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks<'_>;
[INFO] [stderr]    |                                                         ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/str_chunks.rs:123:25
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact;
[INFO] [stderr]     |                         ^^^^^                        ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact<'_>;
[INFO] [stderr]     |                                                                    ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/str_chunks.rs:154:20
[INFO] [stderr]     |
[INFO] [stderr] 154 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks;
[INFO] [stderr]     |                    ^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 154 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks<'_>;
[INFO] [stderr]     |                                                           ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/str_chunks.rs:187:26
[INFO] [stderr]     |
[INFO] [stderr] 187 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact;
[INFO] [stderr]     |                          ^^^^^                        ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 187 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact<'_>;
[INFO] [stderr]     |                                                                      ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/str_chunks.rs:190:19
[INFO] [stderr]     |
[INFO] [stderr] 190 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks {
[INFO] [stderr]     |                   ^^^^^                        ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 190 |     fn str_chunks(&self, chunk_size: usize) -> StrChunks<'_> {
[INFO] [stderr]     |                                                         ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/str_chunks.rs:195:25
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact {
[INFO] [stderr]     |                         ^^^^^                        ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn str_chunks_exact(&self, chunk_size: usize) -> StrChunksExact<'_> {
[INFO] [stderr]     |                                                                    ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/str_chunks.rs:200:20
[INFO] [stderr]     |
[INFO] [stderr] 200 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks {
[INFO] [stderr]     |                    ^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 200 |     fn str_rchunks(&self, chunk_size: usize) -> StrRChunks<'_> {
[INFO] [stderr]     |                                                           ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/str_chunks.rs:205:26
[INFO] [stderr]     |
[INFO] [stderr] 205 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact {
[INFO] [stderr]     |                          ^^^^^                        ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 205 |     fn str_rchunks_exact(&self, chunk_size: usize) -> StrRChunksExact<'_> {
[INFO] [stderr]     |                                                                      ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/str_chunks.rs:216:26
[INFO] [stderr]     |
[INFO] [stderr] 216 | fn valid_split_points(s: &str) -> Chain<CharIndices, Once<(usize, char)>> {
[INFO] [stderr]     |                          ^^^^           ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 216 | fn valid_split_points(s: &str) -> Chain<CharIndices<'_>, Once<(usize, char)>> {
[INFO] [stderr]     |                                                    ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `str-chunks` (lib) generated 9 warnings (run `cargo fix --lib -p str-chunks` to apply 9 suggestions)
[INFO] [stderr] warning: `str-chunks` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/str_chunks.rs (/opt/rustwide/target/debug/deps/str_chunks-b279942ed98eba85)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::empty ... ok
[INFO] [stdout] test tests::short ... ok
[INFO] [stdout] test tests::str_chunks ... ok
[INFO] [stdout] test tests::reverse ... ok
[INFO] [stdout] test tests::emoji ... ok
[INFO] [stdout] test tests::remainder ... ok
[INFO] [stdout] test tests::str_rchunks_exact ... ok
[INFO] [stdout] test tests::str_rchunks ... ok
[INFO] [stdout] test tests::str_chunks_exact ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests str_chunks
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/str_chunks.rs - ImplStrChunks::str_rchunks_exact (line 173) ... ok
[INFO] [stdout] test src/str_chunks.rs - ImplStrChunks::str_rchunks (line 140) ... ok
[INFO] [stdout] test src/str_chunks.rs - StrChunksExact (line 303) ... ok
[INFO] [stdout] test src/str_chunks.rs - ImplStrChunks (line 51) ... ok
[INFO] [stdout] test src/str_chunks.rs - ImplStrChunks::str_chunks_exact (line 109) ... ok
[INFO] [stdout] test src/str_chunks.rs - StrChunks (line 231) ... ok
[INFO] [stdout] test src/str_chunks.rs - ImplStrChunks::str_chunks (line 78) ... ok
[INFO] [stdout] test src/str_chunks.rs - StrRChunksExact (line 441) ... ok
[INFO] [stdout] test src/str_chunks.rs - DoubleEnded (line 514) ... ok
[INFO] [stdout] test src/str_chunks.rs - StrRChunks (line 369) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.71s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ca42794092b67239d521c0a0e1e77a8d0f8e87e296b578aa1e697b49b29d9c89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca42794092b67239d521c0a0e1e77a8d0f8e87e296b578aa1e697b49b29d9c89", kill_on_drop: false }`
[INFO] [stdout] ca42794092b67239d521c0a0e1e77a8d0f8e87e296b578aa1e697b49b29d9c89
