[INFO] fetching crate genawaiter 0.99.1... [INFO] checking genawaiter-0.99.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate genawaiter 0.99.1 into /workspace/builds/worker-5-tc1/source [INFO] started tweaking crates.io crate genawaiter 0.99.1 [INFO] finished tweaking crates.io crate genawaiter 0.99.1 [INFO] tweaked toml for crates.io crate genawaiter 0.99.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate genawaiter 0.99.1 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] [stderr] Updating crates.io index [INFO] [stderr] Locking 26 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 proc-macro-error v0.4.12 [INFO] [stderr] Downloaded genawaiter-macro v0.99.1 [INFO] [stderr] Downloaded syn-mid v0.5.4 [INFO] [stderr] Downloaded proc-macro-error-attr v0.4.12 [INFO] [stderr] Downloaded genawaiter-proc-macro v0.99.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f3c5ed20dfdfe26133e50b68d98f6f5d16039062f9f8e9a40eccb762eed7627e [INFO] running `Command { std: "docker" "start" "-a" "f3c5ed20dfdfe26133e50b68d98f6f5d16039062f9f8e9a40eccb762eed7627e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f3c5ed20dfdfe26133e50b68d98f6f5d16039062f9f8e9a40eccb762eed7627e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3c5ed20dfdfe26133e50b68d98f6f5d16039062f9f8e9a40eccb762eed7627e", kill_on_drop: false }` [INFO] [stdout] f3c5ed20dfdfe26133e50b68d98f6f5d16039062f9f8e9a40eccb762eed7627e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fad9b1c4a17e0276d3bf42c229ac70fa66f39dec866541c1ad560f7fcb669135 [INFO] running `Command { std: "docker" "start" "-a" "fad9b1c4a17e0276d3bf42c229ac70fa66f39dec866541c1ad560f7fcb669135", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling proc-macro-error-attr v0.4.12 [INFO] [stderr] Compiling proc-macro-error v0.4.12 [INFO] [stderr] Compiling syn v2.0.104 [INFO] [stderr] Compiling proc-macro-hack v0.5.20+deprecated [INFO] [stderr] Checking futures-core v0.3.31 [INFO] [stderr] Checking futures-sink v0.3.31 [INFO] [stderr] Checking memchr v2.7.5 [INFO] [stderr] Checking slab v0.4.10 [INFO] [stderr] Checking genawaiter-macro v0.99.1 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Compiling syn-mid v0.5.4 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Compiling genawaiter-proc-macro v0.99.1 [INFO] [stderr] Checking genawaiter v0.99.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method [INFO] [stdout] --> src/ops.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 44 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:261:73 [INFO] [stdout] | [INFO] [stdout] 261 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)] [INFO] [stdout] | ^^^^^^ [INFO] [stdout] = note: `#[warn(unused_attributes)]` implied by `#[warn(unused)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method [INFO] [stdout] --> src/rc/iterator.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method [INFO] [stdout] --> src/stack/generator.rs:36:5 [INFO] [stdout] | [INFO] [stdout] 36 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method [INFO] [stdout] --> src/stack/iterator.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method [INFO] [stdout] --> src/sync/iterator.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method [INFO] [stdout] --> src/ops.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 44 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:261:73 [INFO] [stdout] | [INFO] [stdout] 261 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)] [INFO] [stdout] | ^^^^^^ [INFO] [stdout] = note: `#[warn(unused_attributes)]` implied by `#[warn(unused)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method [INFO] [stdout] --> src/rc/iterator.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method [INFO] [stdout] --> src/stack/generator.rs:36:5 [INFO] [stdout] | [INFO] [stdout] 36 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method [INFO] [stdout] --> src/stack/iterator.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method [INFO] [stdout] --> src/sync/iterator.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/stack/mod.rs:468:13 [INFO] [stdout] | [INFO] [stdout] 468 | drop(gen); [INFO] [stdout] | ^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut stack::generator::Gen<'_, i32, (), {async block@src/stack/mod.rs:456:17: 456:27}>` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 468 - drop(gen); [INFO] [stdout] 468 + let _ = gen; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.68s [INFO] running `Command { std: "docker" "inspect" "fad9b1c4a17e0276d3bf42c229ac70fa66f39dec866541c1ad560f7fcb669135", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fad9b1c4a17e0276d3bf42c229ac70fa66f39dec866541c1ad560f7fcb669135", kill_on_drop: false }` [INFO] [stdout] fad9b1c4a17e0276d3bf42c229ac70fa66f39dec866541c1ad560f7fcb669135