[INFO] fetching crate wasmer-singlepass-backend 0.17.1...
[INFO] checking wasmer-singlepass-backend-0.17.1 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate wasmer-singlepass-backend 0.17.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate wasmer-singlepass-backend 0.17.1 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-singlepass-backend 0.17.1
[INFO] finished tweaking crates.io crate wasmer-singlepass-backend 0.17.1
[INFO] tweaked toml for crates.io crate wasmer-singlepass-backend 0.17.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e450afd3814371ff69ebf5abae9edd195ea1ab7ed31b44a5928f9bbc9f3c30e
[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" "0e450afd3814371ff69ebf5abae9edd195ea1ab7ed31b44a5928f9bbc9f3c30e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e450afd3814371ff69ebf5abae9edd195ea1ab7ed31b44a5928f9bbc9f3c30e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e450afd3814371ff69ebf5abae9edd195ea1ab7ed31b44a5928f9bbc9f3c30e", kill_on_drop: false }`
[INFO] [stdout] 0e450afd3814371ff69ebf5abae9edd195ea1ab7ed31b44a5928f9bbc9f3c30e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--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] 469d4b7ea2069aeff1ca0586a69b3c83d1ab50c89c1d182a999db02f102eccc8
[INFO] running `Command { std: "docker" "start" "-a" "469d4b7ea2069aeff1ca0586a69b3c83d1ab50c89c1d182a999db02f102eccc8", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking indexmap v1.7.0
[INFO] [stderr]     Checking serde-bench v0.0.7
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking dynasmrt v0.5.2
[INFO] [stderr]    Compiling wasmer-runtime-core v0.17.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling dynasm v0.5.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/dynasm-0.5.2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/dynasm-0.5.2/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_span)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dynasm` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "469d4b7ea2069aeff1ca0586a69b3c83d1ab50c89c1d182a999db02f102eccc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "469d4b7ea2069aeff1ca0586a69b3c83d1ab50c89c1d182a999db02f102eccc8", kill_on_drop: false }`
[INFO] [stdout] 469d4b7ea2069aeff1ca0586a69b3c83d1ab50c89c1d182a999db02f102eccc8
