[INFO] cloning repository https://github.com/whatisaphone/genawaiter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whatisaphone/genawaiter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhatisaphone%2Fgenawaiter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhatisaphone%2Fgenawaiter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 45c10c223b92da215e182bc3eff0d5e09bf813f4
[INFO] testing whatisaphone/genawaiter against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhatisaphone%2Fgenawaiter" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/whatisaphone/genawaiter
[INFO] finished tweaking git repo https://github.com/whatisaphone/genawaiter
[INFO] tweaked toml for git repo https://github.com/whatisaphone/genawaiter written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/whatisaphone/genawaiter on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/whatisaphone/genawaiter 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" "+beta-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75e472fbd70212e075869bc1173fe10425bae57541cfdee27f0126d1654a56cd
[INFO] running `Command { std: "docker" "start" "-a" "75e472fbd70212e075869bc1173fe10425bae57541cfdee27f0126d1654a56cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75e472fbd70212e075869bc1173fe10425bae57541cfdee27f0126d1654a56cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75e472fbd70212e075869bc1173fe10425bae57541cfdee27f0126d1654a56cd", kill_on_drop: false }`
[INFO] [stdout] 75e472fbd70212e075869bc1173fe10425bae57541cfdee27f0126d1654a56cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2925e5406814205d5f31458c72e3215d26e6b464c7e4b1e18fcd0a8eb4605365
[INFO] running `Command { std: "docker" "start" "-a" "2925e5406814205d5f31458c72e3215d26e6b464c7e4b1e18fcd0a8eb4605365", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling genawaiter-macro v0.99.1 (/opt/rustwide/workdir/genawaiter-macro)
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]    Compiling genawaiter-proc-macro v0.99.1 (/opt/rustwide/workdir/genawaiter-proc-macro)
[INFO] [stdout] warning: unused extern crate
[INFO] [stdout]  --> genawaiter-proc-macro/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate proc_macro;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^ unused
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> genawaiter-proc-macro/src/lib.rs:1:73
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stdout]   |                                                                         ^^^^^^
[INFO] [stdout]   = note: `#[warn(unused_extern_crates)]` implied by `#[warn(unused)]`
[INFO] [stdout] help: remove the unused `extern crate`
[INFO] [stdout]   |
[INFO] [stdout] 5 - extern crate proc_macro;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling genawaiter v0.99.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/ops.rs:44:5
[INFO] [stdout]     |
[INFO] [stdout]  44 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:260:73
[INFO] [stdout]     |
[INFO] [stdout] 260 | #![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]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]  --> src/rc/iterator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[must_use]
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/stack/generator.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]  --> src/stack/iterator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[must_use]
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]  --> src/sync/iterator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[must_use]
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MaybeUninitExt` is never used
[INFO] [stdout]  --> src/ext.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait MaybeUninitExt<T> {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.79s
[INFO] running `Command { std: "docker" "inspect" "2925e5406814205d5f31458c72e3215d26e6b464c7e4b1e18fcd0a8eb4605365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2925e5406814205d5f31458c72e3215d26e6b464c7e4b1e18fcd0a8eb4605365", kill_on_drop: false }`
[INFO] [stdout] 2925e5406814205d5f31458c72e3215d26e6b464c7e4b1e18fcd0a8eb4605365
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e88abab7788d564c098dddc24dce337ce1d583f226a841968f1bd0aab1105fad
[INFO] running `Command { std: "docker" "start" "-a" "e88abab7788d564c098dddc24dce337ce1d583f226a841968f1bd0aab1105fad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling futures-core v0.3.1
[INFO] [stderr]    Compiling futures-sink v0.3.1
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling futures-io v0.3.1
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling once_cell v1.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stdout] warning: unused extern crate
[INFO] [stdout]  --> genawaiter-proc-macro/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate proc_macro;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^ unused
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> genawaiter-proc-macro/src/lib.rs:1:73
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stdout]   |                                                                         ^^^^^^
[INFO] [stdout]   = note: `#[warn(unused_extern_crates)]` implied by `#[warn(unused)]`
[INFO] [stdout] help: remove the unused `extern crate`
[INFO] [stdout]   |
[INFO] [stdout] 5 - extern crate proc_macro;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/ops.rs:44:5
[INFO] [stdout]     |
[INFO] [stdout]  44 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:260:73
[INFO] [stdout]     |
[INFO] [stdout] 260 | #![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]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]  --> src/rc/iterator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[must_use]
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/stack/generator.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]  --> src/stack/iterator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[must_use]
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]  --> src/sync/iterator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[must_use]
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MaybeUninitExt` is never used
[INFO] [stdout]  --> src/ext.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait MaybeUninitExt<T> {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-channel v0.3.1
[INFO] [stderr]    Compiling futures-util v0.3.1
[INFO] [stderr]    Compiling futures-executor v0.3.1
[INFO] [stderr]    Compiling futures v0.3.1
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling trybuild v1.0.23
[INFO] [stderr]    Compiling genawaiter v0.99.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/ops.rs:44:5
[INFO] [stdout]     |
[INFO] [stdout]  44 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:260:73
[INFO] [stdout]     |
[INFO] [stdout] 260 | #![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]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]  --> src/rc/iterator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[must_use]
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/stack/generator.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]  --> src/stack/iterator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[must_use]
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]  --> src/sync/iterator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[must_use]
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MaybeUninitExt` is never used
[INFO] [stdout]  --> src/ext.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait MaybeUninitExt<T> {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[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 `test` profile [unoptimized + debuginfo] target(s) in 16.67s
[INFO] running `Command { std: "docker" "inspect" "e88abab7788d564c098dddc24dce337ce1d583f226a841968f1bd0aab1105fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e88abab7788d564c098dddc24dce337ce1d583f226a841968f1bd0aab1105fad", kill_on_drop: false }`
[INFO] [stdout] e88abab7788d564c098dddc24dce337ce1d583f226a841968f1bd0aab1105fad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0c4e43c9bff902955e059f8e3cb915ae913f22578988094afd76b7bf34ac8ee4
[INFO] running `Command { std: "docker" "start" "-a" "0c4e43c9bff902955e059f8e3cb915ae913f22578988094afd76b7bf34ac8ee4", kill_on_drop: false }`
[INFO] [stderr] warning: unused extern crate
[INFO] [stderr]  --> genawaiter-proc-macro/src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | extern crate proc_macro;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^ unused
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> genawaiter-proc-macro/src/lib.rs:1:73
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stderr]   |                                                                         ^^^^^^
[INFO] [stderr]   = note: `#[warn(unused_extern_crates)]` implied by `#[warn(unused)]`
[INFO] [stderr] help: remove the unused `extern crate`
[INFO] [stderr]   |
[INFO] [stderr] 5 - extern crate proc_macro;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: `genawaiter-proc-macro` (lib) generated 1 warning (run `cargo fix --lib -p genawaiter-proc-macro` to apply 1 suggestion)
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/ops.rs:44:5
[INFO] [stderr]     |
[INFO] [stderr]  44 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:260:73
[INFO] [stderr]     |
[INFO] [stderr] 260 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stderr]     |                                                                         ^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_attributes)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]  --> src/rc/iterator.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     #[must_use]
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]   --> src/stack/generator.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     #[must_use]
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]  --> src/stack/iterator.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     #[must_use]
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]  --> src/sync/iterator.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     #[must_use]
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: trait `MaybeUninitExt` is never used
[INFO] [stderr]  --> src/ext.rs:5:11
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub trait MaybeUninitExt<T> {
[INFO] [stderr]   |           ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/stack/mod.rs:468:13
[INFO] [stderr]     |
[INFO] [stderr] 468 |             drop(gen);
[INFO] [stderr]     |             ^^^^^---^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  argument has type `&mut stack::generator::Gen<'_, i32, (), {async block@src/stack/mod.rs:456:17: 456:27}>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     |
[INFO] [stderr] 468 -             drop(gen);
[INFO] [stderr] 468 +             let _ = gen;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `genawaiter` (lib) generated 6 warnings (run `cargo fix --lib -p genawaiter` to apply 5 suggestions)
[INFO] [stderr] warning: `genawaiter` (lib test) generated 7 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/genawaiter-95e50b144beb1808)
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stdout] test rc::iterator::tests::for_loop ... ok
[INFO] [stdout] test rc::iterator::tests::into_iter ... ok
[INFO] [stdout] test rc::tests::function ... ok
[INFO] [stdout] test rc::tests::gen_is_movable ... ok
[INFO] [stdout] test rc::tests::resume_args ... ok
[INFO] [stdout] test stack::macros::tests::unsafety ... ignored, compile-only test
[INFO] [stdout] test stack::tests::function ... ok
[INFO] [stdout] test sync::boxed::tests::can_be_stored_in_static ... ok
[INFO] [stdout] test stack::iterator::tests::let_gen_using_for_loop ... ok
[INFO] [stdout] test stack::iterator::tests::let_gen_using_into_iter ... ok
[INFO] [stdout] test stack::tests::resume_args ... ok
[INFO] [stdout] test stack::tests::test_gen_drop ... ok
[INFO] [stdout] test sync::iterator::tests::into_iter ... ok
[INFO] [stdout] test sync::tests::async_resume ... ok
[INFO] [stdout] test sync::tests::function ... ok
[INFO] [stdout] test stack::tests::simple_closure ... ok
[INFO] [stdout] test rc::tests::simple_closure ... ok
[INFO] [stdout] test stack::iterator::tests::shelf_generator_into_iter ... ok
[INFO] [stdout] test sync::tests::simple_closure ... ok
[INFO] [stdout] test sync::tests::gen_is_movable ... ok
[INFO] [stdout] test sync::iterator::tests::for_loop ... ok
[INFO] [stdout] test stack::iterator::tests::shelf_generator_for_loop ... ok
[INFO] [stdout] test rc::tests::forbidden_await_helpful_message - should panic ... ok
[INFO] [stdout] test rc::tests::multiple_yield_helpful_message - should panic ... ok
[INFO] [stdout] test stack::tests::escaped_co_helpful_message - should panic ... ok
[INFO] [stdout] test stack::tests::forbidden_await_helpful_message - should panic ... ok
[INFO] [stdout] test sync::tests::multiple_yield_helpful_message - should panic ... ok
[INFO] [stdout] test rc::tests::escaped_co_helpful_message - should panic ... ok
[INFO] [stdout] test sync::tests::forbidden_await_helpful_message - should panic ... ok
[INFO] [stdout] test sync::tests::escaped_co_helpful_message - should panic ... ok
[INFO] [stdout] test stack::tests::multiple_yield_helpful_message - should panic ... ok
[INFO] [stdout] test sync::tests::resume_args ... ok
[INFO] [stderr]      Running tests/rc.rs (/opt/rustwide/target/debug/deps/rc-4080dc1736633941)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test rc_convenience_macro ... ok
[INFO] [stdout] test rc_convenience_macro_resume ... ok
[INFO] [stdout] test rc_proc_macro_closure ... ok
[INFO] [stdout] test rc_yield_a_func_method_call ... ok
[INFO] [stdout] test rc_proc_macro_fn ... ok
[INFO] [stdout] test rc_proc_macro_closure_yield2 ... ok
[INFO] [stdout] test test_basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/stack.rs (/opt/rustwide/target/debug/deps/stack-993aea4634d371c6)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test stack_convenience_macro_resume ... ok
[INFO] [stdout] test stack_yield_a_func_call ... ok
[INFO] [stdout] test stack_proc_macro_fn ... ok
[INFO] [stdout] test stack_yield_closure ... ok
[INFO] [stdout] test stack_yield_closure_no_macro ... ok
[INFO] [stdout] test stack_yield_loop_break ... ok
[INFO] [stdout] test stack_convenience_macro ... ok
[INFO] [stdout] test stack_yield_match ... ok
[INFO] [stdout] test test_basic ... ok
[INFO] [stdout] test test_shelf ... ok
[INFO] [stdout] 
[INFO] [stderr]      Running tests/sync.rs (/opt/rustwide/target/debug/deps/sync-89471d786a20fb9c)
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test sync_convenience_macro_resume ... ok
[INFO] [stdout] test sync_proc_macro_fn ... ok
[INFO] [stdout] test sync_convenience_macro ... ok
[INFO] [stdout] test test_basic ... ok
[INFO] [stdout] test sync_proc_macro_closure ... ok
[INFO] [stdout] test sync_proc_macro_fn_method_call ... ok
[INFO] [stdout] test test_boxed ... ok
[INFO] [stderr]      Running tests/ui.rs (/opt/rustwide/target/debug/deps/ui-e875eef770638c4c)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests genawaiter
[INFO] [stdout] 
[INFO] [stdout] running 60 tests
[INFO] [stdout] test src/lib.rs - (line 157) ... ok
[INFO] [stdout] test src/lib.rs - (line 93) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 160) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 234) ... ignored
[INFO] [stdout] test src/lib.rs - (line 204) ... ok
[INFO] [stdout] test src/lib.rs - (line 50) ... ok
[INFO] [stdout] test src/lib.rs - (line 139) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 196) ... ok
[INFO] [stdout] test src/lib.rs - sync_producer (line 282) ... ok
[INFO] [stdout] test src/lib.rs - rc_producer (line 306) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 179) ... ok
[INFO] [stdout] test src/lib.rs - (line 228) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 136) ... ok
[INFO] [stdout] test src/lib.rs - (line 178) ... ok
[INFO] [stdout] test src/lib.rs - (line 123) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 110) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack (line 203) ... ignored
[INFO] [stdout] test src/rc/mod.rs - rc (line 216) ... ok
[INFO] [stdout] test src/stack/generator.rs - stack::generator::Gen<'s,Y,R,F>::new (line 82) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 22) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 53) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 7) ... ok
[INFO] [stdout] test src/lib.rs - (line 72) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack (line 122) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack (line 146) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack::let_gen (line 261) ... ignored
[INFO] [stdout] test src/stack/mod.rs - stack::let_gen_using (line 286) ... ignored
[INFO] [stdout] test src/stack/mod.rs - stack::let_gen_using (line 301) ... ignored
[INFO] [stdout] test src/stack/mod.rs - stack (line 185) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack (line 39) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 248) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack (line 165) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack (line 233) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 264) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack (line 7) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 77) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack (line 217) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack (line 22) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 266) ... ignored
[INFO] [stdout] test src/rc/mod.rs - rc (line 95) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack (line 81) ... ok
[INFO] [stdout] test src/rc/mod.rs - rc (line 37) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack (line 63) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 127) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 109) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 280) ... ok
[INFO] [stdout] test src/stack/mod.rs - stack (line 96) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 142) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 85) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 7) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 211) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 296) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 192) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 228) ... ok
[INFO] [stdout] test src/sync/boxed.rs - sync::boxed::GenBoxed<Y,R,C>::new_boxed (line 21) - compile fail ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 37) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 61) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 22) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 248) ... ok
[INFO] [stdout] test src/sync/mod.rs - sync (line 168) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 54 passed; 0 failed; 6 ignored; 0 measured; 0 filtered out; finished in 3.16s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0c4e43c9bff902955e059f8e3cb915ae913f22578988094afd76b7bf34ac8ee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c4e43c9bff902955e059f8e3cb915ae913f22578988094afd76b7bf34ac8ee4", kill_on_drop: false }`
[INFO] [stdout] 0c4e43c9bff902955e059f8e3cb915ae913f22578988094afd76b7bf34ac8ee4
