[INFO] fetching crate quad-wasmnastics 0.3.0...
[INFO] testing quad-wasmnastics-0.3.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate quad-wasmnastics 0.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate quad-wasmnastics 0.3.0
[INFO] finished tweaking crates.io crate quad-wasmnastics 0.3.0
[INFO] tweaked toml for crates.io crate quad-wasmnastics 0.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate quad-wasmnastics 0.3.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate quad-wasmnastics 0.3.0 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d28ca6c930d92639429bf8951afb946540c7427def93726e26bb1b96a53ba15
[INFO] running `Command { std: "docker" "start" "-a" "1d28ca6c930d92639429bf8951afb946540c7427def93726e26bb1b96a53ba15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d28ca6c930d92639429bf8951afb946540c7427def93726e26bb1b96a53ba15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d28ca6c930d92639429bf8951afb946540c7427def93726e26bb1b96a53ba15", kill_on_drop: false }`
[INFO] [stdout] 1d28ca6c930d92639429bf8951afb946540c7427def93726e26bb1b96a53ba15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2045770c2d10e3ff6586ec0802990ab9bfa1b975e75bcaf8fc32d74037f0416
[INFO] running `Command { std: "docker" "start" "-a" "a2045770c2d10e3ff6586ec0802990ab9bfa1b975e75bcaf8fc32d74037f0416", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling wayland-sys v0.28.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling wayland-scanner v0.28.5
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling memmap2 v0.1.0
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling wayland-client v0.28.5
[INFO] [stderr]    Compiling wayland-protocols v0.28.5
[INFO] [stderr]    Compiling xcursor v0.3.3
[INFO] [stderr]    Compiling wayland-commons v0.28.5
[INFO] [stderr]    Compiling wayland-cursor v0.28.5
[INFO] [stderr]    Compiling x11-clipboard v0.5.2
[INFO] [stderr]    Compiling smithay-client-toolkit v0.12.3
[INFO] [stderr]    Compiling smithay-clipboard v0.6.3
[INFO] [stderr]    Compiling copypasta v0.7.1
[INFO] [stderr]    Compiling quad-wasmnastics v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.97s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.2, xcb v0.9.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "a2045770c2d10e3ff6586ec0802990ab9bfa1b975e75bcaf8fc32d74037f0416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2045770c2d10e3ff6586ec0802990ab9bfa1b975e75bcaf8fc32d74037f0416", kill_on_drop: false }`
[INFO] [stdout] a2045770c2d10e3ff6586ec0802990ab9bfa1b975e75bcaf8fc32d74037f0416
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df0448cbc56c32d6a9df3a843e6aeb3f9947f923832720cddc57abc515d28a1b
[INFO] running `Command { std: "docker" "start" "-a" "df0448cbc56c32d6a9df3a843e6aeb3f9947f923832720cddc57abc515d28a1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling cpal v0.13.3
[INFO] [stderr]    Compiling sapp-linux v0.1.13
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling ahash v0.4.7
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling ogg v0.8.0
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling bytemuck v1.5.1
[INFO] [stderr]    Compiling ttf-parser v0.12.1
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling glam v0.14.0
[INFO] [stderr]    Compiling alsa v0.5.0
[INFO] [stderr]    Compiling quad-rand v0.2.1
[INFO] [stderr]    Compiling macroquad_macro v0.1.5
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling lewton v0.10.2
[INFO] [stderr]    Compiling miniquad v0.3.0-alpha.35
[INFO] [stderr]    Compiling fontdue v0.5.2
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling thiserror v1.0.25
[INFO] [stderr]    Compiling rodio v0.13.1
[INFO] [stderr]    Compiling macroquad v0.3.5
[INFO] [stderr]    Compiling quad-wasmnastics v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> examples/clipboardinator.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> examples/clipboardinator.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: there is a feature with a similar name: `option_filter`
[INFO] [stdout]   |
[INFO] [stdout] 1 - #![feature(drain_filter)]
[INFO] [stdout] 1 + #![feature(option_filter)]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> examples/clipboardinator.rs:11:9
[INFO] [stdout]     |
[INFO] [stdout]  11 |         serde_json::from_slice(&load_strings)?
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<Vec<String>, Error>`, found `Result<_, Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `serde_json::Error` and `anyhow::Error` have similar names, but are actually distinct types
[INFO] [stdout] note: `serde_json::Error` is defined in crate `serde_json`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.64/src/error.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 | pub struct Error {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `anyhow::Error` is defined in crate `anyhow`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/anyhow-1.0.40/src/lib.rs:376:1
[INFO] [stdout]     |
[INFO] [stdout] 376 | pub struct Error {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Result<_, serde_json::Error>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]     |
[INFO] [stdout]  11 |         serde_json::from_slice(&load_strings)?.expect("REASON")
[INFO] [stdout]     |                                               +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for struct `Vec<Waiter<()>>` in the current scope
[INFO] [stdout]   --> examples/clipboardinator.rs:38:14
[INFO] [stdout]    |
[INFO] [stdout] 36 | /         copy_queue
[INFO] [stdout] 37 | |             // remove it if it's some
[INFO] [stdout] 38 | |             .drain_filter(|waiter| {
[INFO] [stdout]    | |             -^^^^^^^^^^^^ method not found in `Vec<Waiter<()>>`
[INFO] [stdout]    | |_____________|
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for struct `Vec<Waiter<std::string::String>>` in the current scope
[INFO] [stdout]   --> examples/clipboardinator.rs:53:14
[INFO] [stdout]    |
[INFO] [stdout] 52 | /         paste_queue
[INFO] [stdout] 53 | |             .drain_filter(|waiter| {
[INFO] [stdout]    | |             -^^^^^^^^^^^^ method not found in `Vec<Waiter<std::string::String>>`
[INFO] [stdout]    | |_____________|
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> examples/clipboardinator.rs:69:36
[INFO] [stdout]     |
[INFO] [stdout]  69 |                 let save_strings = serde_json::to_string(&strings)?;
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<(), Error>`, found `Result<_, Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `serde_json::Error` and `anyhow::Error` have similar names, but are actually distinct types
[INFO] [stdout] note: `serde_json::Error` is defined in crate `serde_json`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.64/src/error.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 | pub struct Error {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `anyhow::Error` is defined in crate `anyhow`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/anyhow-1.0.40/src/lib.rs:376:1
[INFO] [stdout]     |
[INFO] [stdout] 376 | pub struct Error {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Result<_, serde_json::Error>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]     |
[INFO] [stdout]  69 |                 let save_strings = serde_json::to_string(&strings)?.expect("REASON");
[INFO] [stdout]     |                                                                    +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this function depends on never type fallback being `()`
[INFO] [stdout]   --> examples/clipboardinator.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout]  8 | async fn main() {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: serde::de::Deserialize<'_>` will fail
[INFO] [stdout]   --> examples/clipboardinator.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         serde_json::from_slice(&load_strings)?
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `()` annotations to avoid fallback changes
[INFO] [stdout]    |
[INFO] [stdout] 11 |         serde_json::from_slice::<()>(&load_strings)?
[INFO] [stdout]    |                               ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0554, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quad-wasmnastics` (example "clipboardinator") due to 6 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "df0448cbc56c32d6a9df3a843e6aeb3f9947f923832720cddc57abc515d28a1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df0448cbc56c32d6a9df3a843e6aeb3f9947f923832720cddc57abc515d28a1b", kill_on_drop: false }`
[INFO] [stdout] df0448cbc56c32d6a9df3a843e6aeb3f9947f923832720cddc57abc515d28a1b
