[INFO] fetching crate cpclib-z80emu 0.4.4...
[INFO] documenting cpclib-z80emu-0.4.4 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate cpclib-z80emu 0.4.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate cpclib-z80emu 0.4.4 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cpclib-z80emu 0.4.4
[INFO] finished tweaking crates.io crate cpclib-z80emu 0.4.4
[INFO] tweaked toml for crates.io crate cpclib-z80emu 0.4.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derivative v2.2.0
[INFO] [stderr]   Downloaded getset v0.1.1
[INFO] [stderr]   Downloaded wyz v0.2.0
[INFO] [stderr]   Downloaded num v0.3.1
[INFO] [stderr]   Downloaded num-complex v0.3.1
[INFO] [stderr]   Downloaded radium v0.5.3
[INFO] [stderr]   Downloaded tap v1.0.1
[INFO] [stderr]   Downloaded num_enum_derive v0.5.3
[INFO] [stderr]   Downloaded num_enum v0.5.3
[INFO] [stderr]   Downloaded funty v1.1.0
[INFO] [stderr]   Downloaded nom v6.1.2
[INFO] [stderr]   Downloaded cpclib-basic v0.4.4
[INFO] [stderr]   Downloaded bitsets v0.1.1
[INFO] [stderr]   Downloaded built v0.4.4
[INFO] [stderr]   Downloaded cpclib-sna v0.4.4
[INFO] [stderr]   Downloaded custom_error v1.9.2
[INFO] [stderr]   Downloaded remain v0.2.2
[INFO] [stderr]   Downloaded cpclib-disc v0.4.4
[INFO] [stderr]   Downloaded cpclib-asm v0.4.4
[INFO] [stderr]   Downloaded bitvec v0.19.5
[INFO] [stderr]   Downloaded cargo-lock v4.0.1
[INFO] [stderr]   Downloaded delegate v0.5.2
[INFO] [stderr]   Downloaded cpclib-tokens v0.4.4
[INFO] [stderr]   Downloaded num-bigint v0.3.2
[INFO] [stderr]   Downloaded chardet v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0839b64eb1429815dcbeac82b9f02e65b843350ee28d29182e4efe853c701f3f
[INFO] running `Command { std: "docker" "start" "-a" "0839b64eb1429815dcbeac82b9f02e65b843350ee28d29182e4efe853c701f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0839b64eb1429815dcbeac82b9f02e65b843350ee28d29182e4efe853c701f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0839b64eb1429815dcbeac82b9f02e65b843350ee28d29182e4efe853c701f3f", kill_on_drop: false }`
[INFO] [stdout] 0839b64eb1429815dcbeac82b9f02e65b843350ee28d29182e4efe853c701f3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 844d6bc2f412b312f268b4e6d8cd72a276b1d45ed4add15d1d8e0acde5246cb4
[INFO] running `Command { std: "docker" "start" "-a" "844d6bc2f412b312f268b4e6d8cd72a276b1d45ed4add15d1d8e0acde5246cb4", kill_on_drop: false }`
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]     Checking bitsets v0.1.1
[INFO] [stderr]     Checking custom_error v1.9.2
[INFO] [stderr]     Checking chardet v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling delegate v0.5.2
[INFO] [stderr]    Compiling remain v0.2.2
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]    Compiling cargo-lock v4.0.1
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.3
[INFO] [stderr]    Compiling built v0.4.4
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]    Compiling cpclib-sna v0.4.4
[INFO] [stderr]    Compiling cpclib-tokens v0.4.4
[INFO] [stderr]    Compiling cpclib-disc v0.4.4
[INFO] [stderr]    Compiling cpclib-basic v0.4.4
[INFO] [stderr]    Compiling cpclib-asm v0.4.4
[INFO] [stderr]     Checking num_enum v0.5.3
[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/cpclib-tokens-0.4.4/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(stmt_expr_attributes)]
[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/cpclib-tokens-0.4.4/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_hygiene)]
[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 `cpclib-tokens` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "844d6bc2f412b312f268b4e6d8cd72a276b1d45ed4add15d1d8e0acde5246cb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "844d6bc2f412b312f268b4e6d8cd72a276b1d45ed4add15d1d8e0acde5246cb4", kill_on_drop: false }`
[INFO] [stdout] 844d6bc2f412b312f268b4e6d8cd72a276b1d45ed4add15d1d8e0acde5246cb4
