[INFO] fetching crate label-generator 0.3.0...
[INFO] documenting label-generator-0.3.0 against 1.100.0-beta.1 for beta-rustdoc-1.100-2
[INFO] extracting crate label-generator 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate label-generator 0.3.0
[INFO] finished tweaking crates.io crate label-generator 0.3.0
[INFO] tweaked toml for crates.io crate label-generator 0.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate label-generator 0.3.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate label-generator 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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] bb39f914b34b8479700ae802ecae117052075ac33b42c3ac0edf0696d3db58f0
[INFO] running `Command { std: "docker" "start" "bb39f914b34b8479700ae802ecae117052075ac33b42c3ac0edf0696d3db58f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb39f914b34b8479700ae802ecae117052075ac33b42c3ac0edf0696d3db58f0", 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" "bb39f914b34b8479700ae802ecae117052075ac33b42c3ac0edf0696d3db58f0" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb39f914b34b8479700ae802ecae117052075ac33b42c3ac0edf0696d3db58f0", 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" "bb39f914b34b8479700ae802ecae117052075ac33b42c3ac0edf0696d3db58f0" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling crossbeam-utils v0.8.6
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.6
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crc32fast v1.3.1
[INFO] [stderr]    Compiling unicode-general-category v0.4.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking ttf-parser v0.12.3
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]     Checking memmap2 v0.5.2
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling lua-src v544.0.0
[INFO] [stderr]    Compiling luajit-src v210.3.2+resty1085a4d
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking unicode-script v0.5.4
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]     Checking unicode-bidi-mirroring v0.1.0
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking siphasher v0.3.9
[INFO] [stderr]     Checking unicode-ccc v0.1.2
[INFO] [stderr]     Checking bytemuck v1.7.3
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking data-url v0.1.1
[INFO] [stderr]     Checking svgtypes v0.8.0
[INFO] [stderr]     Checking roxmltree v0.14.1
[INFO] [stderr]    Compiling mlua v0.7.3
[INFO] [stderr]     Checking kurbo v0.8.3
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking fontdb v0.7.0
[INFO] [stderr]     Checking rustybuzz v0.4.0
[INFO] [stderr]     Checking simplecss v0.2.1
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking unicode-vo v0.1.0
[INFO] [stderr]     Checking either v1.6.1
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[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking rctree v0.4.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
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[INFO] [stdout] error[E0277]: the trait bound `!: FromLuaMulti<'_>` is not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mlua-0.7.3/src/lua.rs:2655:14
[INFO] [stdout]      |
[INFO] [stdout] 2655 |         self.call(())?;
[INFO] [stdout]      |              ^^^^ the trait `UserData` is not implemented for `!`
[INFO] [stdout] ...
[INFO] [stdout] 3573 | macro_rules! lua_userdata_impl {
[INFO] [stdout]      |
[INFO] [stdout] help: the following other types implement trait `UserData`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mlua-0.7.3/src/lua.rs:3575:9
[INFO] [stdout]      |
[INFO] [stdout] 3575 |         impl<T: 'static + UserData> UserData for $type {
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         `Arc<std::sync::Mutex<T>>`
[INFO] [stdout]      |         `Arc<std::sync::RwLock<T>>`
[INFO] [stdout]      |         `Rc<RefCell<T>>`
[INFO] [stdout] ...
[INFO] [stdout] 3610 | lua_userdata_impl!(Rc<RefCell<T>>);
[INFO] [stdout]      | ---------------------------------- in this macro invocation
[INFO] [stdout] 3611 | lua_userdata_impl!(Arc<Mutex<T>>);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout] 3612 | lua_userdata_impl!(Arc<RwLock<T>>);
[INFO] [stdout]      | ---------------------------------- in this macro invocation
[INFO] [stdout] note: required for `!` to implement `FromLua<'_>`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mlua-0.7.3/src/conversion.rs:148:43
[INFO] [stdout]      |
[INFO] [stdout]  148 | impl<'lua, T: 'static + UserData + Clone> FromLua<'lua> for T {
[INFO] [stdout]      |                         --------          ^^^^^^^^^^^^^     ^
[INFO] [stdout]      |                         |
[INFO] [stdout]      |                         unsatisfied trait bound introduced here
[INFO] [stdout] note: required for `!` to implement `FromLuaMulti<'_>`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mlua-0.7.3/src/multi.rs:35:30
[INFO] [stdout]      |
[INFO] [stdout]   35 | impl<'lua, T: FromLua<'lua>> FromLuaMulti<'lua> for T {
[INFO] [stdout]      |               -------------  ^^^^^^^^^^^^^^^^^^     ^
[INFO] [stdout]      |               |
[INFO] [stdout]      |               unsatisfied trait bound introduced here
[INFO] [stdout] note: required by a bound in `Chunk::<'lua, 'a>::call`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mlua-0.7.3/src/lua.rs:2733:41
[INFO] [stdout]      |
[INFO] [stdout] 2610 | impl<'lua, 'a> Chunk<'lua, 'a> {
[INFO] [stdout] ...
[INFO] [stdout] 2733 |     pub fn call<A: ToLuaMulti<'lua>, R: FromLuaMulti<'lua>>(self, args: A) -> Result<R> {
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^^^^^ required by this bound in `Chunk::<'lua, 'a>::call`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mlua` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "bb39f914b34b8479700ae802ecae117052075ac33b42c3ac0edf0696d3db58f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb39f914b34b8479700ae802ecae117052075ac33b42c3ac0edf0696d3db58f0", kill_on_drop: false }`
[INFO] [stdout] bb39f914b34b8479700ae802ecae117052075ac33b42c3ac0edf0696d3db58f0
