[INFO] fetching crate async-observable 0.4.2... [INFO] checking async-observable-0.4.2 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate async-observable 0.4.2 into /workspace/builds/worker-4-tc1/source [INFO] started tweaking crates.io crate async-observable 0.4.2 [INFO] finished tweaking crates.io crate async-observable 0.4.2 [INFO] tweaked toml for crates.io crate async-observable 0.4.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate async-observable 0.4.2 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] crate crates.io crate async-observable 0.4.2 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded value-bag v1.8.1 [INFO] [stderr] Downloaded async-executor v1.9.1 [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] 7de7f52cd14e793f75cd67a846fed66f05fd5aa0f64fe5a76c1462e61aace247 [INFO] running `Command { std: "docker" "start" "-a" "7de7f52cd14e793f75cd67a846fed66f05fd5aa0f64fe5a76c1462e61aace247", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7de7f52cd14e793f75cd67a846fed66f05fd5aa0f64fe5a76c1462e61aace247", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7de7f52cd14e793f75cd67a846fed66f05fd5aa0f64fe5a76c1462e61aace247", kill_on_drop: false }` [INFO] [stdout] 7de7f52cd14e793f75cd67a846fed66f05fd5aa0f64fe5a76c1462e61aace247 [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] 37a3f320685e91d29d132c977a18fc630db10c5b6b83e7c6f6ac3b5d100270c3 [INFO] running `Command { std: "docker" "start" "-a" "37a3f320685e91d29d132c977a18fc630db10c5b6b83e7c6f6ac3b5d100270c3", kill_on_drop: false }` [INFO] [stderr] Checking pin-project-lite v0.2.14 [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking parking v2.2.0 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Checking fastrand v2.0.2 [INFO] [stderr] Compiling rustix v0.38.32 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking value-bag v1.8.1 [INFO] [stderr] Checking bitflags v2.5.0 [INFO] [stderr] Checking linux-raw-sys v0.4.13 [INFO] [stderr] Compiling io-lifetimes v1.0.11 [INFO] [stderr] Compiling rustix v0.37.27 [INFO] [stderr] Checking async-task v4.7.0 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking event-listener v2.5.3 [INFO] [stderr] Checking waker-fn v1.1.1 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Compiling polling v2.8.0 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking piper v0.2.1 [INFO] [stderr] Compiling async-io v1.13.0 [INFO] [stderr] Checking linux-raw-sys v0.3.8 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking fastrand v1.9.0 [INFO] [stderr] Checking concurrent-queue v2.4.0 [INFO] [stderr] Checking async-lock v2.8.0 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Compiling serde_json v1.0.115 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking ryu v1.0.17 [INFO] [stderr] Checking event-listener v4.0.3 [INFO] [stderr] Checking event-listener v5.2.0 [INFO] [stderr] Checking async-channel v1.9.0 [INFO] [stderr] Checking futures-lite v1.13.0 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking event-listener-strategy v0.5.1 [INFO] [stderr] Checking event-listener-strategy v0.4.0 [INFO] [stderr] Checking async-channel v2.2.0 [INFO] [stderr] Checking async-lock v3.3.0 [INFO] [stderr] Checking socket2 v0.4.10 [INFO] [stderr] Checking async-executor v1.9.1 [INFO] [stderr] Checking blocking v1.5.1 [INFO] [stderr] Compiling async-attributes v1.1.2 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking polling v3.6.0 [INFO] [stderr] Checking async-io v2.3.2 [INFO] [stderr] Checking async-global-executor v2.4.1 [INFO] [stderr] Checking async-std v1.12.0 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking async-observable v0.4.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:351:24 [INFO] [stdout] | [INFO] [stdout] 351 | pub(crate) fn lock(&self) -> MutexGuard> { [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] 351 | pub(crate) fn lock(&self) -> MutexGuard<'_, Inner> { [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:351:24 [INFO] [stdout] | [INFO] [stdout] 351 | pub(crate) fn lock(&self) -> MutexGuard> { [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] 351 | pub(crate) fn lock(&self) -> MutexGuard<'_, Inner> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.07s [INFO] running `Command { std: "docker" "inspect" "37a3f320685e91d29d132c977a18fc630db10c5b6b83e7c6f6ac3b5d100270c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "37a3f320685e91d29d132c977a18fc630db10c5b6b83e7c6f6ac3b5d100270c3", kill_on_drop: false }` [INFO] [stdout] 37a3f320685e91d29d132c977a18fc630db10c5b6b83e7c6f6ac3b5d100270c3