[INFO] cloning repository https://github.com/paraexec/ParaOS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paraexec/ParaOS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparaexec%2FParaOS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparaexec%2FParaOS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf3a125cc3e504575e355d49c82f23e9acf1108b
[INFO] testing paraexec/ParaOS against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparaexec%2FParaOS" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paraexec/ParaOS on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paraexec/ParaOS
[INFO] finished tweaking git repo https://github.com/paraexec/ParaOS
[INFO] tweaked toml for git repo https://github.com/paraexec/ParaOS written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/paraexec/ParaOS already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasmparser-nostd v0.83.0
[INFO] [stderr]   Downloaded buddy_system_allocator v0.8.0
[INFO] [stderr]   Downloaded iced-x86 v1.17.0
[INFO] [stderr]   Downloaded x86 v0.46.0
[INFO] [stderr]   Downloaded unicorn-engine v2.0.0-rc5.post1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 2e63dc0baad155b864355bc2e409c1cd9a33c110c800111b0d73cc4b1938fe47
[INFO] running `Command { std: "docker" "start" "-a" "2e63dc0baad155b864355bc2e409c1cd9a33c110c800111b0d73cc4b1938fe47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e63dc0baad155b864355bc2e409c1cd9a33c110c800111b0d73cc4b1938fe47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e63dc0baad155b864355bc2e409c1cd9a33c110c800111b0d73cc4b1938fe47", kill_on_drop: false }`
[INFO] [stdout] 2e63dc0baad155b864355bc2e409c1cd9a33c110c800111b0d73cc4b1938fe47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", 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] 994e25874bc5b8583f8727b8d75b07b4da5aab24956c2d0bdefdcf0457883ac3
[INFO] running `Command { std: "docker" "start" "-a" "994e25874bc5b8583f8727b8d75b07b4da5aab24956c2d0bdefdcf0457883ac3", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling x86 v0.46.0
[INFO] [stderr]    Compiling wasmparser-nostd v0.83.0
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling paraos v0.1.0 (/opt/rustwide/workdir/paraos)
[INFO] [stderr]    Compiling raw-cpuid v10.2.0
[INFO] [stderr]    Compiling buddy_system_allocator v0.8.0
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling build-helper v0.1.1
[INFO] [stderr]    Compiling mio v0.8.0
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling tracing v0.1.31
[INFO] [stderr]    Compiling wast v39.0.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling tar v0.4.38
[INFO] [stderr]    Compiling hashbrown v0.12.0
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling iced-x86 v1.17.0
[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/x86-0.46.0/src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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 `x86` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "994e25874bc5b8583f8727b8d75b07b4da5aab24956c2d0bdefdcf0457883ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "994e25874bc5b8583f8727b8d75b07b4da5aab24956c2d0bdefdcf0457883ac3", kill_on_drop: false }`
[INFO] [stdout] 994e25874bc5b8583f8727b8d75b07b4da5aab24956c2d0bdefdcf0457883ac3