[INFO] fetching crate rollgrid 3.0.1...
[INFO] checking rollgrid-3.0.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate rollgrid 3.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rollgrid 3.0.1
[INFO] finished tweaking crates.io crate rollgrid 3.0.1
[INFO] tweaked toml for crates.io crate rollgrid 3.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rollgrid 3.0.1 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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d015023741f5fc62dcc0c3cea1e1acf5139c21694b73becf002d19569a519ac6
[INFO] running `Command { std: "docker" "start" "-a" "d015023741f5fc62dcc0c3cea1e1acf5139c21694b73becf002d19569a519ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d015023741f5fc62dcc0c3cea1e1acf5139c21694b73becf002d19569a519ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d015023741f5fc62dcc0c3cea1e1acf5139c21694b73becf002d19569a519ac6", kill_on_drop: false }`
[INFO] [stdout] d015023741f5fc62dcc0c3cea1e1acf5139c21694b73becf002d19569a519ac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0390a48f8afa0767d066b1d7ea7d243b0d65f20f4da5d82b38d1ee48276ae4e0
[INFO] running `Command { std: "docker" "start" "-a" "0390a48f8afa0767d066b1d7ea7d243b0d65f20f4da5d82b38d1ee48276ae4e0", kill_on_drop: false }`
[INFO] [stderr]     Checking panicmsg v1.3.0
[INFO] [stderr]     Checking rollgrid v3.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/grid2d.rs:162:17
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn iter(&self) -> Grid2DIterator<T> {
[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] 162 |     pub fn iter(&self) -> Grid2DIterator<'_, T> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/grid2d.rs:162:17
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn iter(&self) -> Grid2DIterator<T> {
[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] 162 |     pub fn iter(&self) -> Grid2DIterator<'_, T> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/grid2d.rs:170:21
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn iter_mut(&mut self) -> Grid2DMutIterator<T> {
[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] 170 |     pub fn iter_mut(&mut self) -> Grid2DMutIterator<'_, T> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/grid3d.rs:194:17
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn iter(&self) -> Grid3DIterator<T> {
[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] 194 |     pub fn iter(&self) -> Grid3DIterator<'_, T> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/grid2d.rs:170:21
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn iter_mut(&mut self) -> Grid2DMutIterator<T> {
[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] 170 |     pub fn iter_mut(&mut self) -> Grid2DMutIterator<'_, T> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/grid3d.rs:202:21
[INFO] [stdout]     |
[INFO] [stdout] 202 |     pub fn iter_mut(&mut self) -> Grid3DMutIterator<T> {
[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] 202 |     pub fn iter_mut(&mut self) -> Grid3DMutIterator<'_, T> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/grid3d.rs:194:17
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn iter(&self) -> Grid3DIterator<T> {
[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] 194 |     pub fn iter(&self) -> Grid3DIterator<'_, T> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/grid3d.rs:202:21
[INFO] [stdout]     |
[INFO] [stdout] 202 |     pub fn iter_mut(&mut self) -> Grid3DMutIterator<T> {
[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] 202 |     pub fn iter_mut(&mut self) -> Grid3DMutIterator<'_, T> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/rollgrid2d.rs:1137:17
[INFO] [stdout]      |
[INFO] [stdout] 1137 |     pub fn iter(&self) -> RollGrid2DIterator<T> {
[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] 1137 |     pub fn iter(&self) -> RollGrid2DIterator<'_, T> {
[INFO] [stdout]      |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/rollgrid2d.rs:1145:21
[INFO] [stdout]      |
[INFO] [stdout] 1145 |     pub fn iter_mut(&mut self) -> RollGrid2DMutIterator<T> {
[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] 1145 |     pub fn iter_mut(&mut self) -> RollGrid2DMutIterator<'_, T> {
[INFO] [stdout]      |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/rollgrid2d.rs:1137:17
[INFO] [stdout]      |
[INFO] [stdout] 1137 |     pub fn iter(&self) -> RollGrid2DIterator<T> {
[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] 1137 |     pub fn iter(&self) -> RollGrid2DIterator<'_, T> {
[INFO] [stdout]      |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/rollgrid2d.rs:1145:21
[INFO] [stdout]      |
[INFO] [stdout] 1145 |     pub fn iter_mut(&mut self) -> RollGrid2DMutIterator<T> {
[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] 1145 |     pub fn iter_mut(&mut self) -> RollGrid2DMutIterator<'_, T> {
[INFO] [stdout]      |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/rollgrid3d.rs:1992:17
[INFO] [stdout]      |
[INFO] [stdout] 1992 |     pub fn iter(&self) -> RollGrid3DIterator<T> {
[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] 1992 |     pub fn iter(&self) -> RollGrid3DIterator<'_, T> {
[INFO] [stdout]      |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/rollgrid3d.rs:2000:21
[INFO] [stdout]      |
[INFO] [stdout] 2000 |     pub fn iter_mut(&mut self) -> RollGrid3DMutIterator<T> {
[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] 2000 |     pub fn iter_mut(&mut self) -> RollGrid3DMutIterator<'_, T> {
[INFO] [stdout]      |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/rollgrid3d.rs:1992:17
[INFO] [stdout]      |
[INFO] [stdout] 1992 |     pub fn iter(&self) -> RollGrid3DIterator<T> {
[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] 1992 |     pub fn iter(&self) -> RollGrid3DIterator<'_, T> {
[INFO] [stdout]      |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/rollgrid3d.rs:2000:21
[INFO] [stdout]      |
[INFO] [stdout] 2000 |     pub fn iter_mut(&mut self) -> RollGrid3DMutIterator<T> {
[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] 2000 |     pub fn iter_mut(&mut self) -> RollGrid3DMutIterator<'_, T> {
[INFO] [stdout]      |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "0390a48f8afa0767d066b1d7ea7d243b0d65f20f4da5d82b38d1ee48276ae4e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0390a48f8afa0767d066b1d7ea7d243b0d65f20f4da5d82b38d1ee48276ae4e0", kill_on_drop: false }`
[INFO] [stdout] 0390a48f8afa0767d066b1d7ea7d243b0d65f20f4da5d82b38d1ee48276ae4e0