[INFO] fetching crate talos 0.1.0...
[INFO] testing talos-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate talos 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate talos 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate talos 0.1.0
[INFO] finished tweaking crates.io crate talos 0.1.0
[INFO] tweaked toml for crates.io crate talos 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate talos 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c007463939769aff829573995f937b28f1615602919f390ff7a998f6bb1022c
[INFO] running `Command { std: "docker" "start" "-a" "9c007463939769aff829573995f937b28f1615602919f390ff7a998f6bb1022c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c007463939769aff829573995f937b28f1615602919f390ff7a998f6bb1022c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c007463939769aff829573995f937b28f1615602919f390ff7a998f6bb1022c", kill_on_drop: false }`
[INFO] [stdout] 9c007463939769aff829573995f937b28f1615602919f390ff7a998f6bb1022c
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d5b78834619a825b7278c9488daddd1ac7c0ca69ba50179c66edeb59903618a
[INFO] running `Command { std: "docker" "start" "-a" "0d5b78834619a825b7278c9488daddd1ac7c0ca69ba50179c66edeb59903618a", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling alea v0.2.2
[INFO] [stderr]    Compiling approx_eq v0.1.8
[INFO] [stderr]    Compiling reverse v0.2.2
[INFO] [stderr]    Compiling impl_ops v0.1.1
[INFO] [stderr]    Compiling seq-macro v0.2.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling compute v0.2.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling talos_procs v0.1.0
[INFO] [stderr]    Compiling talos v0.1.0 (/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(generic_associated_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::functions`
[INFO] [stdout]  --> src/distributions.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::functions;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude::*`
[INFO] [stdout]  --> src/samplers/hmc.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 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 `talos` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0d5b78834619a825b7278c9488daddd1ac7c0ca69ba50179c66edeb59903618a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d5b78834619a825b7278c9488daddd1ac7c0ca69ba50179c66edeb59903618a", kill_on_drop: false }`
[INFO] [stdout] 0d5b78834619a825b7278c9488daddd1ac7c0ca69ba50179c66edeb59903618a