[INFO] fetching crate mcap 0.20.0...
[INFO] checking mcap-0.20.0 against master#8a65ee08296b36342bf7c3cdc15312ccbc357227 for pr-142704
[INFO] extracting crate mcap 0.20.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate mcap 0.20.0 on toolchain 8a65ee08296b36342bf7c3cdc15312ccbc357227
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mcap 0.20.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mcap 0.20.0
[INFO] tweaked toml for crates.io crate mcap 0.20.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate mcap 0.20.0 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" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d447d58e95ed4a3c3f360f10a85db5373e3bafebcb8921de76cdc6e29fef84af
[INFO] running `Command { std: "docker" "start" "-a" "d447d58e95ed4a3c3f360f10a85db5373e3bafebcb8921de76cdc6e29fef84af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d447d58e95ed4a3c3f360f10a85db5373e3bafebcb8921de76cdc6e29fef84af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d447d58e95ed4a3c3f360f10a85db5373e3bafebcb8921de76cdc6e29fef84af", kill_on_drop: false }`
[INFO] [stdout] d447d58e95ed4a3c3f360f10a85db5373e3bafebcb8921de76cdc6e29fef84af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a2ebfc3d8257126a2d84df3c4216b1c8e813b158bca2327ee7bb4d5b8e17708
[INFO] running `Command { std: "docker" "start" "-a" "2a2ebfc3d8257126a2d84df3c4216b1c8e813b158bca2327ee7bb4d5b8e17708", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
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[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/read.rs:660:9
[INFO] [stdout]     |
[INFO] [stdout] 660 |         &self,
[INFO] [stdout]     |         ^^^^^ this lifetime flows to the output
[INFO] [stdout] ...
[INFO] [stdout] 663 |     ) -> McapResult<HashMap<Arc<Channel>, Vec<records::MessageIndexEntry>>> {
[INFO] [stdout]     |                                 ------- the lifetime gets resolved as `'_`
[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] 663 |     ) -> McapResult<HashMap<Arc<Channel<'_>>, Vec<records::MessageIndexEntry>>> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/read.rs:719:9
[INFO] [stdout]     |
[INFO] [stdout] 719 |         &self,
[INFO] [stdout]     |         ^^^^^ this lifetime flows to the output
[INFO] [stdout] ...
[INFO] [stdout] 723 |     ) -> McapResult<Message> {
[INFO] [stdout]     |                     ------- the lifetime gets resolved as `'_`
[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] 723 |     ) -> McapResult<Message<'_>> {
[INFO] [stdout]     |                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/sans_io/indexed_reader.rs:241:23
[INFO] [stdout]     |
[INFO] [stdout] 241 |     pub fn next_event(&mut self) -> Option<McapResult<IndexedReadEvent>> {
[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] 241 |     pub fn next_event(&mut self) -> Option<McapResult<IndexedReadEvent<'_>>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/sans_io/linear_reader.rs:328:23
[INFO] [stdout]     |
[INFO] [stdout] 328 |     pub fn next_event(&mut self) -> Option<McapResult<LinearReadEvent>> {
[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] 328 |     pub fn next_event(&mut self) -> Option<McapResult<LinearReadEvent<'_>>> {
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/read.rs:660:9
[INFO] [stdout]     |
[INFO] [stdout] 660 |         &self,
[INFO] [stdout]     |         ^^^^^ this lifetime flows to the output
[INFO] [stdout] ...
[INFO] [stdout] 663 |     ) -> McapResult<HashMap<Arc<Channel>, Vec<records::MessageIndexEntry>>> {
[INFO] [stdout]     |                                 ------- the lifetime gets resolved as `'_`
[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] 663 |     ) -> McapResult<HashMap<Arc<Channel<'_>>, Vec<records::MessageIndexEntry>>> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/read.rs:719:9
[INFO] [stdout]     |
[INFO] [stdout] 719 |         &self,
[INFO] [stdout]     |         ^^^^^ this lifetime flows to the output
[INFO] [stdout] ...
[INFO] [stdout] 723 |     ) -> McapResult<Message> {
[INFO] [stdout]     |                     ------- the lifetime gets resolved as `'_`
[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] 723 |     ) -> McapResult<Message<'_>> {
[INFO] [stdout]     |                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/sans_io/indexed_reader.rs:241:23
[INFO] [stdout]     |
[INFO] [stdout] 241 |     pub fn next_event(&mut self) -> Option<McapResult<IndexedReadEvent>> {
[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] 241 |     pub fn next_event(&mut self) -> Option<McapResult<IndexedReadEvent<'_>>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/sans_io/linear_reader.rs:328:23
[INFO] [stdout]     |
[INFO] [stdout] 328 |     pub fn next_event(&mut self) -> Option<McapResult<LinearReadEvent>> {
[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] 328 |     pub fn next_event(&mut self) -> Option<McapResult<LinearReadEvent<'_>>> {
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 40s
[INFO] running `Command { std: "docker" "inspect" "2a2ebfc3d8257126a2d84df3c4216b1c8e813b158bca2327ee7bb4d5b8e17708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a2ebfc3d8257126a2d84df3c4216b1c8e813b158bca2327ee7bb4d5b8e17708", kill_on_drop: false }`
[INFO] [stdout] 2a2ebfc3d8257126a2d84df3c4216b1c8e813b158bca2327ee7bb4d5b8e17708
