[INFO] fetching crate near-vm-runner 2.0.0...
[INFO] documenting near-vm-runner-2.0.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate near-vm-runner 2.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate near-vm-runner 2.0.0 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 near-vm-runner 2.0.0
[INFO] finished tweaking crates.io crate near-vm-runner 2.0.0
[INFO] tweaked toml for crates.io crate near-vm-runner 2.0.0 written to /workspace/builds/worker-2/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] [stderr]     Blocking waiting for file lock on package cache
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded borsh-derive v0.7.1
[INFO] [stderr]   Downloaded borsh-schema-derive-internal v0.7.1
[INFO] [stderr]   Downloaded borsh v0.7.1
[INFO] [stderr]   Downloaded borsh-derive-internal v0.7.1
[INFO] [stderr]   Downloaded wabt-sys v0.6.1
[INFO] [stderr]   Downloaded wabt v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] d5cd4e77c61e6cc5eaa78b67e1a5fed56a03439e7182a9acd0c9c1b3dec41c03
[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" "d5cd4e77c61e6cc5eaa78b67e1a5fed56a03439e7182a9acd0c9c1b3dec41c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5cd4e77c61e6cc5eaa78b67e1a5fed56a03439e7182a9acd0c9c1b3dec41c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5cd4e77c61e6cc5eaa78b67e1a5fed56a03439e7182a9acd0c9c1b3dec41c03", kill_on_drop: false }`
[INFO] [stdout] d5cd4e77c61e6cc5eaa78b67e1a5fed56a03439e7182a9acd0c9c1b3dec41c03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 93c5402337ae9517aad5d59ac285be210f0ac6cfc40d277d89ca57e9c72c8b79
[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" "93c5402337ae9517aad5d59ac285be210f0ac6cfc40d277d89ca57e9c72c8b79", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling subtle v2.2.3
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]     Checking wasmparser v0.51.4
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking parity-wasm v0.41.0
[INFO] [stderr]     Checking bs58 v0.3.1
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling blake3 v0.3.6
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]     Checking cached v0.12.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking pwasm-utils v0.12.0
[INFO] [stderr]    Compiling wasmer-runtime-core v0.17.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking errno v0.2.6
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking dynasmrt v0.5.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling borsh-derive-internal v0.7.1
[INFO] [stderr]    Compiling borsh-schema-derive-internal v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling borsh-derive v0.7.1
[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] [stderr]     Checking borsh v0.7.1
[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" "93c5402337ae9517aad5d59ac285be210f0ac6cfc40d277d89ca57e9c72c8b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93c5402337ae9517aad5d59ac285be210f0ac6cfc40d277d89ca57e9c72c8b79", kill_on_drop: false }`
[INFO] [stdout] 93c5402337ae9517aad5d59ac285be210f0ac6cfc40d277d89ca57e9c72c8b79