[INFO] fetching crate llama-wasm 0.5.0...
[INFO] documenting llama-wasm-0.5.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate llama-wasm 0.5.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate llama-wasm 0.5.0 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate llama-wasm 0.5.0
[INFO] finished tweaking crates.io crate llama-wasm 0.5.0
[INFO] tweaked toml for crates.io crate llama-wasm 0.5.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cranelift-bforest v0.62.0
[INFO] [stderr]   Downloaded multi_mut v0.1.3
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.62.0
[INFO] [stderr]   Downloaded llama v0.5.0
[INFO] [stderr]   Downloaded cranelift-entity v0.62.0
[INFO] [stderr]   Downloaded lightbeam v0.15.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.62.0
[INFO] [stderr]   Downloaded cranelift-codegen v0.62.0
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4628cc056e566d7731ac46c6ef3b9bbdcd1080e8a73e82d3fd0e6e2255449d06
[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" "4628cc056e566d7731ac46c6ef3b9bbdcd1080e8a73e82d3fd0e6e2255449d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4628cc056e566d7731ac46c6ef3b9bbdcd1080e8a73e82d3fd0e6e2255449d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4628cc056e566d7731ac46c6ef3b9bbdcd1080e8a73e82d3fd0e6e2255449d06", kill_on_drop: false }`
[INFO] [stdout] 4628cc056e566d7731ac46c6ef3b9bbdcd1080e8a73e82d3fd0e6e2255449d06
[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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38578c218cf48c46763d2a6b59108e8831e2ac646bfe1d6d902678e550df1fc3
[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" "38578c218cf48c46763d2a6b59108e8831e2ac646bfe1d6d902678e550df1fc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.62.0
[INFO] [stderr]    Compiling cranelift-entity v0.62.0
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling llama v0.5.0
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]     Checking wasmparser v0.51.4
[INFO] [stderr]     Checking multi_mut v0.1.3
[INFO] [stderr]    Compiling capstone-sys v0.10.0
[INFO] [stderr]     Checking dynasmrt v0.5.2
[INFO] [stderr]     Checking gimli v0.20.0
[INFO] [stderr]    Compiling llvm-sys v100.2.0
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.62.0
[INFO] [stderr]     Checking cranelift-bforest v0.62.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling dynasm v0.5.2
[INFO] [stderr]    Compiling cranelift-codegen v0.62.0
[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] [stderr]     Checking thiserror v1.0.20
[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`.
[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" "38578c218cf48c46763d2a6b59108e8831e2ac646bfe1d6d902678e550df1fc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38578c218cf48c46763d2a6b59108e8831e2ac646bfe1d6d902678e550df1fc3", kill_on_drop: false }`
[INFO] [stdout] 38578c218cf48c46763d2a6b59108e8831e2ac646bfe1d6d902678e550df1fc3