[INFO] fetching crate cozal 0.0.2...
[INFO] testing cozal-0.0.2 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate cozal 0.0.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate cozal 0.0.2
[INFO] finished tweaking crates.io crate cozal 0.0.2
[INFO] tweaked toml for crates.io crate cozal 0.0.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cozal 0.0.2 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 134 packages to highest compatible versions
[INFO] [stderr]       Adding flume v0.7.2 (available: v0.12.0)
[INFO] [stderr]       Adding pin-project v0.4.30 (available: v1.1.13)
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.53.3)
[INFO] [stderr]       Adding winit v0.22.2 (available: v0.30.13)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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 ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 90483c5c0a475ab8982efc2253ad0b3f2699f392384e22b786c549d5b2b35133
[INFO] running `Command { std: "docker" "start" "90483c5c0a475ab8982efc2253ad0b3f2699f392384e22b786c549d5b2b35133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90483c5c0a475ab8982efc2253ad0b3f2699f392384e22b786c549d5b2b35133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "90483c5c0a475ab8982efc2253ad0b3f2699f392384e22b786c549d5b2b35133" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90483c5c0a475ab8982efc2253ad0b3f2699f392384e22b786c549d5b2b35133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "90483c5c0a475ab8982efc2253ad0b3f2699f392384e22b786c549d5b2b35133" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.27
[INFO] [stderr]    Compiling futures-sink v0.3.34
[INFO] [stderr]    Compiling futures-core v0.3.34
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling futures-task v0.3.34
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-io v0.3.34
[INFO] [stderr]    Compiling pin-project-internal v0.4.30
[INFO] [stderr]    Compiling typenum v1.20.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling futures-channel v0.3.34
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling syn v3.0.9
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling sized-chunks v0.6.5
[INFO] [stderr]    Compiling futures-macro v0.3.34
[INFO] [stderr]    Compiling async-trait v0.1.92
[INFO] [stderr]    Compiling futures-util v0.3.34
[INFO] [stderr]    Compiling pin-project v0.4.30
[INFO] [stderr]    Compiling futures-executor v0.3.34
[INFO] [stderr]    Compiling futures v0.3.34
[INFO] [stderr]    Compiling flume v0.7.2
[INFO] [stderr]    Compiling cozal v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(wake_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this labeled break expression is easy to confuse with an unlabeled break with a labeled value expression
[INFO] [stdout]    --> src/core/transposer/engine.rs:251:29
[INFO] [stdout]     |
[INFO] [stdout] 251 | ...                   break 'poll { StatefulSchedulePoll::Pending }
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(break_with_label_and_loop)]` on by default
[INFO] [stdout] help: wrap this expression in parentheses
[INFO] [stdout]     |
[INFO] [stdout] 251 |                             break 'poll ({ StatefulSchedulePoll::Pending })
[INFO] [stdout]     |                                         +                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `realtime`
[INFO] [stdout]   --> src/core/schedule_stream/mod.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[cfg(realtime)]
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 34 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(realtime)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(realtime)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] help: found config with similar value
[INFO] [stdout]    |
[INFO] [stdout] 18 - #[cfg(realtime)]
[INFO] [stdout] 18 + #[cfg(feature = "realtime")]
[INFO] [stdout]    |
[INFO] [stdout] help: found config with similar value
[INFO] [stdout]    |
[INFO] [stdout] 18 - #[cfg(realtime)]
[INFO] [stdout] 18 + #[cfg(sanitize = "realtime")]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `realtime`
[INFO] [stdout]   --> src/core/schedule_stream/mod.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[cfg(realtime)]
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(realtime)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(realtime)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] help: found config with similar value
[INFO] [stdout]    |
[INFO] [stdout] 20 - #[cfg(realtime)]
[INFO] [stdout] 20 + #[cfg(feature = "realtime")]
[INFO] [stdout]    |
[INFO] [stdout] help: found config with similar value
[INFO] [stdout]    |
[INFO] [stdout] 20 - #[cfg(realtime)]
[INFO] [stdout] 20 + #[cfg(sanitize = "realtime")]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `realtime`
[INFO] [stdout]  --> src/core/schedule_stream/stateful_schedule_stream_ext.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[cfg(realtime)]
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(realtime)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(realtime)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] help: found config with similar value
[INFO] [stdout]   |
[INFO] [stdout] 1 - #[cfg(realtime)]
[INFO] [stdout] 1 + #[cfg(feature = "realtime")]
[INFO] [stdout]   |
[INFO] [stdout] help: found config with similar value
[INFO] [stdout]   |
[INFO] [stdout] 1 - #[cfg(realtime)]
[INFO] [stdout] 1 + #[cfg(sanitize = "realtime")]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `realtime`
[INFO] [stdout]   --> src/core/schedule_stream/stateful_schedule_stream_ext.rs:29:11
[INFO] [stdout]    |
[INFO] [stdout] 29 |     #[cfg(realtime)]
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(realtime)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(realtime)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] help: found config with similar value
[INFO] [stdout]    |
[INFO] [stdout] 29 -     #[cfg(realtime)]
[INFO] [stdout] 29 +     #[cfg(feature = "realtime")]
[INFO] [stdout]    |
[INFO] [stdout] help: found config with similar value
[INFO] [stdout]    |
[INFO] [stdout] 29 -     #[cfg(realtime)]
[INFO] [stdout] 29 +     #[cfg(sanitize = "realtime")]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/core/transposer/engine.rs:101:22
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     };
[INFO] [stdout]     |                      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `break` value
[INFO] [stdout]    --> src/core/transposer/engine.rs:251:41
[INFO] [stdout]     |
[INFO] [stdout] 251 | ...                   break 'poll { StatefulSchedulePoll::Pending }
[INFO] [stdout]     |                                   ^^                             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 251 -                             break 'poll { StatefulSchedulePoll::Pending }
[INFO] [stdout] 251 +                             break 'poll StatefulSchedulePoll::Pending
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `winit`
[INFO] [stdout]  --> src/utilities/mod.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[cfg(winit)]
[INFO] [stdout]   |       ^^^^^ help: found config with similar value: `feature = "winit"`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(winit)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(winit)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `wake_trait` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(wake_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `map_first_last` has been stable since 1.66.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(map_first_last)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cozal` (lib) due to 1 previous error; 10 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "90483c5c0a475ab8982efc2253ad0b3f2699f392384e22b786c549d5b2b35133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90483c5c0a475ab8982efc2253ad0b3f2699f392384e22b786c549d5b2b35133", kill_on_drop: false }`
[INFO] [stdout] 90483c5c0a475ab8982efc2253ad0b3f2699f392384e22b786c549d5b2b35133
