[INFO] fetching crate rlua-builders 0.1.4...
[INFO] testing rlua-builders-0.1.4 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate rlua-builders 0.1.4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rlua-builders 0.1.4
[INFO] finished tweaking crates.io crate rlua-builders 0.1.4
[INFO] tweaked toml for crates.io crate rlua-builders 0.1.4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rlua-builders 0.1.4 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 15 packages to highest compatible versions
[INFO] [stderr]       Adding rlua v0.17.1 (available: v0.20.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d1b914bd8ec483d5732aaaff49448ba48065fa0bdf4e64a6d5bf776d6602401c
[INFO] running `Command { std: "docker" "start" "d1b914bd8ec483d5732aaaff49448ba48065fa0bdf4e64a6d5bf776d6602401c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1b914bd8ec483d5732aaaff49448ba48065fa0bdf4e64a6d5bf776d6602401c", 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" "d1b914bd8ec483d5732aaaff49448ba48065fa0bdf4e64a6d5bf776d6602401c" "/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" "d1b914bd8ec483d5732aaaff49448ba48065fa0bdf4e64a6d5bf776d6602401c", 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" "d1b914bd8ec483d5732aaaff49448ba48065fa0bdf4e64a6d5bf776d6602401c" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling find-msvc-tools v0.1.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.190
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling cc v1.6.0
[INFO] [stderr]    Compiling rlua-builders-derive v0.1.4
[INFO] [stderr]    Compiling rlua v0.17.1
[INFO] [stdout] error[E0277]: the trait bound `!: FromLuaMulti<'_>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rlua-0.17.1/src/context.rs:919:14
[INFO] [stdout]     |
[INFO] [stdout] 919 |         self.call(())?;
[INFO] [stdout]     |              ^^^^ the trait `UserData` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout] help: this trait has no implementations, consider adding one
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rlua-0.17.1/src/userdata.rs:278:1
[INFO] [stdout]     |
[INFO] [stdout] 278 | pub trait UserData: Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: required for `!` to implement `FromLua<'_>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rlua-0.17.1/src/conversion.rs:131:43
[INFO] [stdout]     |
[INFO] [stdout] 131 | 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/rlua-0.17.1/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/rlua-0.17.1/src/context.rs:947:41
[INFO] [stdout]     |
[INFO] [stdout] 886 | impl<'lua, 'a> Chunk<'lua, 'a> {
[INFO] [stdout] ...
[INFO] [stdout] 947 |     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 `rlua` (lib) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d1b914bd8ec483d5732aaaff49448ba48065fa0bdf4e64a6d5bf776d6602401c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1b914bd8ec483d5732aaaff49448ba48065fa0bdf4e64a6d5bf776d6602401c", kill_on_drop: false }`
[INFO] [stdout] d1b914bd8ec483d5732aaaff49448ba48065fa0bdf4e64a6d5bf776d6602401c
