[INFO] cloning repository https://github.com/alec-deason/virtual_modular
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alec-deason/virtual_modular" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falec-deason%2Fvirtual_modular", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falec-deason%2Fvirtual_modular'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2108965bab9299f92e991e968802fe016d8bde68
[INFO] checking alec-deason/virtual_modular against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falec-deason%2Fvirtual_modular" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alec-deason/virtual_modular on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/alec-deason/virtual_modular
[INFO] finished tweaking git repo https://github.com/alec-deason/virtual_modular
[INFO] tweaked toml for git repo https://github.com/alec-deason/virtual_modular written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/alec-deason/virtual_modular already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/WeirdConstructor/HexoDSP.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87fe52d3a78edbdcc543af16f2ad70d6d11456c5d53eae3995710d92500e9901
[INFO] running `Command { std: "docker" "start" "-a" "87fe52d3a78edbdcc543af16f2ad70d6d11456c5d53eae3995710d92500e9901", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87fe52d3a78edbdcc543af16f2ad70d6d11456c5d53eae3995710d92500e9901", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87fe52d3a78edbdcc543af16f2ad70d6d11456c5d53eae3995710d92500e9901", kill_on_drop: false }`
[INFO] [stdout] 87fe52d3a78edbdcc543af16f2ad70d6d11456c5d53eae3995710d92500e9901
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8bbde307df43dd90c3d943c70b754279378e54bcb0c760b2659b8752a8a4d87
[INFO] running `Command { std: "docker" "start" "-a" "b8bbde307df43dd90c3d943c70b754279378e54bcb0c760b2659b8752a8a4d87", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling packed_simd_2 v0.3.5
[INFO] [stderr]    Compiling cpal v0.13.3
[INFO] [stderr]     Checking dyn-clone v1.0.4
[INFO] [stderr]     Checking portmidi v0.2.5
[INFO] [stderr]     Checking glam v0.16.0
[INFO] [stderr]     Checking pom v3.2.0
[INFO] [stderr]     Checking wmidi v4.0.6
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]     Checking ringbuf v0.2.6
[INFO] [stderr]     Checking inline_tweak v1.0.8
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.5/src/lib.rs:214:1
[INFO] [stdout]     |
[INFO] [stdout] 214 | / #![feature(
[INFO] [stdout] 215 | |     const_generics,
[INFO] [stdout] 216 | |     repr_simd,
[INFO] [stdout] 217 | |     rustc_attrs,
[INFO] [stdout] ...   |
[INFO] [stdout] 227 | |     llvm_asm
[INFO] [stdout] 228 | | )]
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling linkme-impl v0.2.6
[INFO] [stderr]    Compiling concat-idents v1.1.2
[INFO] [stderr]     Checking gilrs-core v0.3.1
[INFO] [stderr]     Checking alsa v0.5.0
[INFO] [stderr]     Checking gilrs v0.8.1
[INFO] [stderr]     Checking linkme v0.2.6
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `packed_simd_2` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b8bbde307df43dd90c3d943c70b754279378e54bcb0c760b2659b8752a8a4d87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8bbde307df43dd90c3d943c70b754279378e54bcb0c760b2659b8752a8a4d87", kill_on_drop: false }`
[INFO] [stdout] b8bbde307df43dd90c3d943c70b754279378e54bcb0c760b2659b8752a8a4d87
