[INFO] fetching crate rustfft 3.0.1...
[INFO] checking rustfft-3.0.1 against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] extracting crate rustfft 3.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rustfft 3.0.1 on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustfft 3.0.1
[INFO] finished tweaking crates.io crate rustfft 3.0.1
[INFO] tweaked toml for crates.io crate rustfft 3.0.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate rustfft 3.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e467df6c6c76e5e227774fbbb6daa45fae427add881ad606acc8cbf2a458140f
[INFO] running `Command { std: "docker" "start" "-a" "e467df6c6c76e5e227774fbbb6daa45fae427add881ad606acc8cbf2a458140f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e467df6c6c76e5e227774fbbb6daa45fae427add881ad606acc8cbf2a458140f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e467df6c6c76e5e227774fbbb6daa45fae427add881ad606acc8cbf2a458140f", kill_on_drop: false }`
[INFO] [stdout] e467df6c6c76e5e227774fbbb6daa45fae427add881ad606acc8cbf2a458140f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5582a21295e8f76a584d3ddf145f5905e7c091dfaea60de9bd8f92a4ff4ad401
[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" "5582a21295e8f76a584d3ddf145f5905e7c091dfaea60de9bd8f92a4ff4ad401", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking transpose v0.1.0
[INFO] [stderr]     Checking strength_reduce v0.2.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rustfft v3.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/rustfft.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> benches/rustfft.rs:75:19
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let fft : Arc<FFT<_>> = Arc::new(GoodThomasAlgorithm::new(width_fft, height_fft));
[INFO] [stdout]    |                   ^^^^^^ help: use `dyn`: `dyn FFT<_>`
[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]    --> benches/rustfft.rs:100:23
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let fft : Arc<FFT<f32>> = Arc::new(GoodThomasAlgorithm::new(Arc::clone(&width_fft), Arc::clone(&height_fft)));
[INFO] [stdout]     |                       ^^^^^^^^ help: use `dyn`: `dyn FFT<f32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> benches/rustfft.rs:122:19
[INFO] [stdout]     |
[INFO] [stdout] 122 |     let fft : Arc<FFT<_>> = Arc::new(MixedRadix::new(width_fft, height_fft));
[INFO] [stdout]     |                   ^^^^^^ help: use `dyn`: `dyn FFT<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> benches/rustfft.rs:140:38
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn plan_butterfly(len: usize) -> Arc<FFTButterfly<f32>> {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FFTButterfly<f32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> benches/rustfft.rs:162:19
[INFO] [stdout]     |
[INFO] [stdout] 162 |     let fft : Arc<FFT<_>> = Arc::new(MixedRadixDoubleButterfly::new(width_fft, height_fft));
[INFO] [stdout]     |                   ^^^^^^ help: use `dyn`: `dyn FFT<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> benches/rustfft.rs:181:19
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let fft : Arc<FFT<_>> = Arc::new(GoodThomasAlgorithmDoubleButterfly::new(width_fft, height_fft));
[INFO] [stdout]     |                   ^^^^^^ help: use `dyn`: `dyn FFT<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> benches/rustfft.rs:201:19
[INFO] [stdout]     |
[INFO] [stdout] 201 |     let fft : Arc<FFT<_>> = Arc::new(RadersAlgorithm::new(len, inner_fft));
[INFO] [stdout]     |                   ^^^^^^ help: use `dyn`: `dyn FFT<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> benches/rustfft.rs:225:23
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let fft : Arc<FFT<f32>> = Arc::new(RadersAlgorithm::new(len, Arc::clone(&inner_fft)));
[INFO] [stdout]     |                       ^^^^^^^^ help: use `dyn`: `dyn FFT<f32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 8 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 `rustfft`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5582a21295e8f76a584d3ddf145f5905e7c091dfaea60de9bd8f92a4ff4ad401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5582a21295e8f76a584d3ddf145f5905e7c091dfaea60de9bd8f92a4ff4ad401", kill_on_drop: false }`
[INFO] [stdout] 5582a21295e8f76a584d3ddf145f5905e7c091dfaea60de9bd8f92a4ff4ad401
