[INFO] fetching crate text-grid 0.4.1...
[INFO] building text-grid-0.4.1 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate text-grid 0.4.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate text-grid 0.4.1
[INFO] finished tweaking crates.io crate text-grid 0.4.1
[INFO] tweaked toml for crates.io crate text-grid 0.4.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate text-grid 0.4.1 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate text-grid 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded text-grid-macros v0.4.1
[INFO] [stderr]   Downloaded structmeta-derive v0.2.0
[INFO] [stderr]   Downloaded structmeta-derive v0.3.0
[INFO] [stderr]   Downloaded structmeta v0.2.0
[INFO] [stderr]   Downloaded derive-ex v0.1.7
[INFO] [stderr]   Downloaded structmeta v0.3.0
[INFO] [stderr]   Downloaded syn v2.0.52
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06f958ddf3d6aefdfcce4b7be41313701598016faf9d0ba96ac97deef0820cd9
[INFO] running `Command { std: "docker" "start" "-a" "06f958ddf3d6aefdfcce4b7be41313701598016faf9d0ba96ac97deef0820cd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06f958ddf3d6aefdfcce4b7be41313701598016faf9d0ba96ac97deef0820cd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06f958ddf3d6aefdfcce4b7be41313701598016faf9d0ba96ac97deef0820cd9", kill_on_drop: false }`
[INFO] [stdout] 06f958ddf3d6aefdfcce4b7be41313701598016faf9d0ba96ac97deef0820cd9
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c81bfaa865b9081384b43d32350ac5b61f1330259e7b233c7d372c107602844
[INFO] running `Command { std: "docker" "start" "-a" "2c81bfaa865b9081384b43d32350ac5b61f1330259e7b233c7d372c107602844", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling structmeta-derive v0.2.0
[INFO] [stderr]    Compiling structmeta-derive v0.3.0
[INFO] [stderr]    Compiling structmeta v0.2.0
[INFO] [stderr]    Compiling structmeta v0.3.0
[INFO] [stderr]    Compiling derive-ex v0.1.7
[INFO] [stderr]    Compiling text-grid-macros v0.4.1
[INFO] [stderr]    Compiling text-grid v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cells_formatter.rs:185:19
[INFO] [stdout]     |
[INFO] [stdout] 185 |     pub fn filter(&mut self, f: impl FnOnce(&T) -> bool) -> CellsFormatter<T> {
[INFO] [stdout]     |                   ^^^^^^^^^                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                   |                                         |
[INFO] [stdout]     |                   |                                         the same lifetime is hidden here
[INFO] [stdout]     |                   the lifetime is elided here               the same lifetime is hidden 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] 185 |     pub fn filter(&mut self, f: impl FnOnce(&T) -> bool) -> CellsFormatter<'_, T> {
[INFO] [stdout]     |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cells_formatter.rs:251:18
[INFO] [stdout]     |
[INFO] [stdout] 251 |     pub fn unref(&mut self) -> CellsFormatter<T> {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                  |             |
[INFO] [stdout]     |                  |             the same lifetime is hidden here
[INFO] [stdout]     |                  |             the same lifetime is hidden here
[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] 251 |     pub fn unref(&mut self) -> CellsFormatter<'_, T> {
[INFO] [stdout]     |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cells_formatter.rs:260:18
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn unref(&mut self) -> CellsFormatter<T> {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                  |             |
[INFO] [stdout]     |                  |             the same lifetime is hidden here
[INFO] [stdout]     |                  |             the same lifetime is hidden here
[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] 260 |     pub fn unref(&mut self) -> CellsFormatter<'_, T> {
[INFO] [stdout]     |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/grid_builder.rs:422:12
[INFO] [stdout]     |
[INFO] [stdout] 422 |     fn row(&self, row: usize) -> Option<Cursor> {
[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] 422 |     fn row(&self, row: usize) -> Option<Cursor<'_>> {
[INFO] [stdout]     |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/grid_builder.rs:434:13
[INFO] [stdout]     |
[INFO] [stdout] 434 |     fn rows(&self) -> impl Iterator<Item = Cursor> {
[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] 434 |     fn rows(&self) -> impl Iterator<Item = Cursor<'_>> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.87s
[INFO] running `Command { std: "docker" "inspect" "2c81bfaa865b9081384b43d32350ac5b61f1330259e7b233c7d372c107602844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c81bfaa865b9081384b43d32350ac5b61f1330259e7b233c7d372c107602844", kill_on_drop: false }`
[INFO] [stdout] 2c81bfaa865b9081384b43d32350ac5b61f1330259e7b233c7d372c107602844
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46a603b92d518b5d8895d8897bc7ec41cff556e158cd2484e6e660834dae6ee7
[INFO] running `Command { std: "docker" "start" "-a" "46a603b92d518b5d8895d8897bc7ec41cff556e158cd2484e6e660834dae6ee7", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cells_formatter.rs:185:19
[INFO] [stdout]     |
[INFO] [stdout] 185 |     pub fn filter(&mut self, f: impl FnOnce(&T) -> bool) -> CellsFormatter<T> {
[INFO] [stdout]     |                   ^^^^^^^^^                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                   |                                         |
[INFO] [stdout]     |                   |                                         the same lifetime is hidden here
[INFO] [stdout]     |                   the lifetime is elided here               the same lifetime is hidden 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] 185 |     pub fn filter(&mut self, f: impl FnOnce(&T) -> bool) -> CellsFormatter<'_, T> {
[INFO] [stdout]     |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cells_formatter.rs:251:18
[INFO] [stdout]     |
[INFO] [stdout] 251 |     pub fn unref(&mut self) -> CellsFormatter<T> {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                  |             |
[INFO] [stdout]     |                  |             the same lifetime is hidden here
[INFO] [stdout]     |                  |             the same lifetime is hidden here
[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] 251 |     pub fn unref(&mut self) -> CellsFormatter<'_, T> {
[INFO] [stdout]     |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cells_formatter.rs:260:18
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn unref(&mut self) -> CellsFormatter<T> {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                  |             |
[INFO] [stdout]     |                  |             the same lifetime is hidden here
[INFO] [stdout]     |                  |             the same lifetime is hidden here
[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] 260 |     pub fn unref(&mut self) -> CellsFormatter<'_, T> {
[INFO] [stdout]     |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling text-grid v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/grid_builder.rs:422:12
[INFO] [stdout]     |
[INFO] [stdout] 422 |     fn row(&self, row: usize) -> Option<Cursor> {
[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] 422 |     fn row(&self, row: usize) -> Option<Cursor<'_>> {
[INFO] [stdout]     |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/grid_builder.rs:434:13
[INFO] [stdout]     |
[INFO] [stdout] 434 |     fn rows(&self) -> impl Iterator<Item = Cursor> {
[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] 434 |     fn rows(&self) -> impl Iterator<Item = Cursor<'_>> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyCellsSchema` is never constructed
[INFO] [stdout]  --> examples/grid_schema.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     struct MyCellsSchema {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `X` is never constructed
[INFO] [stdout]  --> tests/cell.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     struct X(String);
[INFO] [stdout]   |            ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IndexToValueSchema` is never constructed
[INFO] [stdout]    --> tests/grid.rs:646:12
[INFO] [stdout]     |
[INFO] [stdout] 646 |     struct IndexToValueSchema<T>(Vec<T>);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cells_formatter.rs:185:19
[INFO] [stdout]     |
[INFO] [stdout] 185 |     pub fn filter(&mut self, f: impl FnOnce(&T) -> bool) -> CellsFormatter<T> {
[INFO] [stdout]     |                   ^^^^^^^^^                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                   |                                         |
[INFO] [stdout]     |                   |                                         the same lifetime is hidden here
[INFO] [stdout]     |                   the lifetime is elided here               the same lifetime is hidden 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] 185 |     pub fn filter(&mut self, f: impl FnOnce(&T) -> bool) -> CellsFormatter<'_, T> {
[INFO] [stdout]     |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cells_formatter.rs:251:18
[INFO] [stdout]     |
[INFO] [stdout] 251 |     pub fn unref(&mut self) -> CellsFormatter<T> {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                  |             |
[INFO] [stdout]     |                  |             the same lifetime is hidden here
[INFO] [stdout]     |                  |             the same lifetime is hidden here
[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] 251 |     pub fn unref(&mut self) -> CellsFormatter<'_, T> {
[INFO] [stdout]     |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cells_formatter.rs:260:18
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn unref(&mut self) -> CellsFormatter<T> {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                  |             |
[INFO] [stdout]     |                  |             the same lifetime is hidden here
[INFO] [stdout]     |                  |             the same lifetime is hidden here
[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] 260 |     pub fn unref(&mut self) -> CellsFormatter<'_, T> {
[INFO] [stdout]     |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/grid_builder.rs:422:12
[INFO] [stdout]     |
[INFO] [stdout] 422 |     fn row(&self, row: usize) -> Option<Cursor> {
[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] 422 |     fn row(&self, row: usize) -> Option<Cursor<'_>> {
[INFO] [stdout]     |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/grid_builder.rs:434:13
[INFO] [stdout]     |
[INFO] [stdout] 434 |     fn rows(&self) -> impl Iterator<Item = Cursor> {
[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] 434 |     fn rows(&self) -> impl Iterator<Item = Cursor<'_>> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "46a603b92d518b5d8895d8897bc7ec41cff556e158cd2484e6e660834dae6ee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46a603b92d518b5d8895d8897bc7ec41cff556e158cd2484e6e660834dae6ee7", kill_on_drop: false }`
[INFO] [stdout] 46a603b92d518b5d8895d8897bc7ec41cff556e158cd2484e6e660834dae6ee7
