[INFO] fetching crate wasm-core 0.2.15...
[INFO] testing wasm-core-0.2.15 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate wasm-core 0.2.15 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate wasm-core 0.2.15 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasm-core 0.2.15
[INFO] finished tweaking crates.io crate wasm-core 0.2.15
[INFO] tweaked toml for crates.io crate wasm-core 0.2.15 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bincode-no-std v1.0.0
[INFO] [stderr]   Downloaded core_io v0.1.20190701
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97fd4a4ae275671ef2f7afd59fec42f9af43aaee6d3b03db75add6c7891114d2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "97fd4a4ae275671ef2f7afd59fec42f9af43aaee6d3b03db75add6c7891114d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97fd4a4ae275671ef2f7afd59fec42f9af43aaee6d3b03db75add6c7891114d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97fd4a4ae275671ef2f7afd59fec42f9af43aaee6d3b03db75add6c7891114d2", kill_on_drop: false }`
[INFO] [stdout] 97fd4a4ae275671ef2f7afd59fec42f9af43aaee6d3b03db75add6c7891114d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60b6610a0ea5e8780d02f941a39f4f8778e4f0ceec696e57043f150e36f54d56
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "60b6610a0ea5e8780d02f941a39f4f8778e4f0ceec696e57043f150e36f54d56", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling wasm-core v0.2.15 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(alloc)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(underscore_lifetimes)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/executor.rs:63:28
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub type NativeEntry = Box<Fn(&mut GlobalStateProvider, &[Value]) -> ExecuteResult<Option<Value>> + 'static>;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut GlobalStateProvider, &[Value]) -> ExecuteResult<Option<Value>> + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/executor.rs:63:36
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub type NativeEntry = Box<Fn(&mut GlobalStateProvider, &[Value]) -> ExecuteResult<Option<Value>> + 'static>;
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GlobalStateProvider`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/executor.rs:84:30
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub(crate) resolver: Box<NativeResolver>
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn NativeResolver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/executor.rs:90:23
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub resolver: Box<NativeResolver>
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^ help: use `dyn`: `dyn NativeResolver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/executor.rs:94:39
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn invoke(&mut self, rt: &mut GlobalStateProvider, args: &[Value]) -> ExecuteResult<Option<Value>> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GlobalStateProvider`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/executor.rs:118:29
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn builtin_resolve(rt: &GlobalStateProvider, module: &str, field: &str) -> Option<NativeEntry> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GlobalStateProvider`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fp_ops`
[INFO] [stdout]  --> src/value.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use fp_ops;
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExecuteError`, `ExecuteResult`
[INFO] [stdout]  --> src/fp_ops.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use executor::{ExecuteResult, ExecuteError};
[INFO] [stdout]   |                ^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cfgraph.rs:47:19
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let _obj: Box<Optimizer<Return = ()>> = Box::new(Opt {});
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Optimizer<Return = ()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hetrans.rs:162:64
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub fn translate_module(m: &Module, entry_fn: usize, mni: &mut MapNativeInvoke) -> Vec<u8> {
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MapNativeInvoke`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hetrans.rs:261:87
[INFO] [stdout]     |
[INFO] [stdout] 261 | fn translate_function(m: &Module, f: &Function, offset_table: &OffsetTable, mni: &mut MapNativeInvoke) -> TargetFunction {
[INFO] [stdout]     |                                                                                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MapNativeInvoke`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-core`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "60b6610a0ea5e8780d02f941a39f4f8778e4f0ceec696e57043f150e36f54d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60b6610a0ea5e8780d02f941a39f4f8778e4f0ceec696e57043f150e36f54d56", kill_on_drop: false }`
[INFO] [stdout] 60b6610a0ea5e8780d02f941a39f4f8778e4f0ceec696e57043f150e36f54d56