[INFO] fetching crate starb 0.3.1...
[INFO] checking starb-0.3.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate starb 0.3.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate starb 0.3.1
[INFO] finished tweaking crates.io crate starb 0.3.1
[INFO] tweaked toml for crates.io crate starb 0.3.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate starb 0.3.1 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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 76b1afec7fee8a409d8bd0a2ce199b3bf9e1a935ef5c3eee2e272f50583796ef
[INFO] running `Command { std: "docker" "start" "-a" "76b1afec7fee8a409d8bd0a2ce199b3bf9e1a935ef5c3eee2e272f50583796ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76b1afec7fee8a409d8bd0a2ce199b3bf9e1a935ef5c3eee2e272f50583796ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76b1afec7fee8a409d8bd0a2ce199b3bf9e1a935ef5c3eee2e272f50583796ef", kill_on_drop: false }`
[INFO] [stdout] 76b1afec7fee8a409d8bd0a2ce199b3bf9e1a935ef5c3eee2e272f50583796ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e9974a65ee30ef7b89ba6abddd3e04fe48f8c6ced6c0866c6fecaaca5be51977
[INFO] running `Command { std: "docker" "start" "-a" "e9974a65ee30ef7b89ba6abddd3e04fe48f8c6ced6c0866c6fecaaca5be51977", kill_on_drop: false }`
[INFO] [stderr]     Checking starb v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/lib.rs:63:24
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub const fn split(&self) -> (Reader<T>, Writer<T>) {
[INFO] [stdout]    |                        ^^^^^      ---------  --------- the lifetimes get resolved as `'_`
[INFO] [stdout]    |                        |          |
[INFO] [stdout]    |                        |          the lifetimes get resolved as `'_`
[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] 63 |     pub const fn split(&self) -> (Reader<'_, T>, Writer<'_, 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:63:24
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub const fn split(&self) -> (Reader<T>, Writer<T>) {
[INFO] [stdout]    |                        ^^^^^      ---------  --------- the lifetimes get resolved as `'_`
[INFO] [stdout]    |                        |          |
[INFO] [stdout]    |                        |          the lifetimes get resolved as `'_`
[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] 63 |     pub const fn split(&self) -> (Reader<'_, T>, Writer<'_, T>) {
[INFO] [stdout]    |                                          +++            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "e9974a65ee30ef7b89ba6abddd3e04fe48f8c6ced6c0866c6fecaaca5be51977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9974a65ee30ef7b89ba6abddd3e04fe48f8c6ced6c0866c6fecaaca5be51977", kill_on_drop: false }`
[INFO] [stdout] e9974a65ee30ef7b89ba6abddd3e04fe48f8c6ced6c0866c6fecaaca5be51977