[INFO] fetching crate chargrid_core 0.4.0...
[INFO] checking chargrid_core-0.4.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate chargrid_core 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate chargrid_core 0.4.0
[INFO] finished tweaking crates.io crate chargrid_core 0.4.0
[INFO] tweaked toml for crates.io crate chargrid_core 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate chargrid_core 0.4.0 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 10 packages to latest compatible versions
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded chargrid_input v0.6.1
[INFO] [stderr]   Downloaded rgb_int v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8843cd35e6dd405769e34358f55450fabb551a97e9f8309e2aabacf5de2b947b
[INFO] running `Command { std: "docker" "start" "-a" "8843cd35e6dd405769e34358f55450fabb551a97e9f8309e2aabacf5de2b947b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8843cd35e6dd405769e34358f55450fabb551a97e9f8309e2aabacf5de2b947b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8843cd35e6dd405769e34358f55450fabb551a97e9f8309e2aabacf5de2b947b", kill_on_drop: false }`
[INFO] [stdout] 8843cd35e6dd405769e34358f55450fabb551a97e9f8309e2aabacf5de2b947b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ef64072f948dd149be9b967d6f77a8bf6bee523bb487d4c200e00e0db80b7031
[INFO] running `Command { std: "docker" "start" "-a" "ef64072f948dd149be9b967d6f77a8bf6bee523bb487d4c200e00e0db80b7031", kill_on_drop: false }`
[INFO] [stderr]     Checking coord_2d v0.3.6
[INFO] [stderr]     Checking rgb_int v0.1.5
[INFO] [stderr]     Checking chargrid_input v0.6.1
[INFO] [stderr]     Checking grid_2d v0.15.3
[INFO] [stderr]     Checking chargrid_core v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:208:22
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub fn enumerate(&self) -> FrameBufferEnumerate {
[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] 208 |     pub fn enumerate(&self) -> FrameBufferEnumerate<'_> {
[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:212:17
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn iter(&self) -> FrameBufferIter {
[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] 212 |     pub fn iter(&self) -> FrameBufferIter<'_> {
[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:216:17
[INFO] [stdout]     |
[INFO] [stdout] 216 |     pub fn rows(&self) -> FrameBufferRows {
[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] 216 |     pub fn rows(&self) -> FrameBufferRows<'_> {
[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:544:34
[INFO] [stdout]     |
[INFO] [stdout] 544 |     pub fn compose_tint<T: Tint>(&self, tint: &'a T) -> TintDynCompose<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] 544 |     pub fn compose_tint<T: Tint>(&self, tint: &'a T) -> TintDynCompose<'_, 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/lib.rs:208:22
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub fn enumerate(&self) -> FrameBufferEnumerate {
[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] 208 |     pub fn enumerate(&self) -> FrameBufferEnumerate<'_> {
[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:212:17
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn iter(&self) -> FrameBufferIter {
[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] 212 |     pub fn iter(&self) -> FrameBufferIter<'_> {
[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:216:17
[INFO] [stdout]     |
[INFO] [stdout] 216 |     pub fn rows(&self) -> FrameBufferRows {
[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] 216 |     pub fn rows(&self) -> FrameBufferRows<'_> {
[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:544:34
[INFO] [stdout]     |
[INFO] [stdout] 544 |     pub fn compose_tint<T: Tint>(&self, tint: &'a T) -> TintDynCompose<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] 544 |     pub fn compose_tint<T: Tint>(&self, tint: &'a T) -> TintDynCompose<'_, T> {
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "ef64072f948dd149be9b967d6f77a8bf6bee523bb487d4c200e00e0db80b7031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef64072f948dd149be9b967d6f77a8bf6bee523bb487d4c200e00e0db80b7031", kill_on_drop: false }`
[INFO] [stdout] ef64072f948dd149be9b967d6f77a8bf6bee523bb487d4c200e00e0db80b7031