[INFO] fetching crate nyar_valkyrie 0.0.8...
[INFO] documenting nyar_valkyrie-0.0.8 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate nyar_valkyrie 0.0.8 into /workspace/builds/worker-45/source
[INFO] validating manifest of crates.io crate nyar_valkyrie 0.0.8 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 nyar_valkyrie 0.0.8
[INFO] finished tweaking crates.io crate nyar_valkyrie 0.0.8
[INFO] tweaked toml for crates.io crate nyar_valkyrie 0.0.8 written to /workspace/builds/worker-45/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nyar_ast v0.0.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] f7aac8c4667b8915ab82d22c8b4f7321f54035d6d5eb11fda694bf2405d8bd81
[INFO] running `Command { std: "docker" "start" "-a" "f7aac8c4667b8915ab82d22c8b4f7321f54035d6d5eb11fda694bf2405d8bd81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7aac8c4667b8915ab82d22c8b4f7321f54035d6d5eb11fda694bf2405d8bd81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7aac8c4667b8915ab82d22c8b4f7321f54035d6d5eb11fda694bf2405d8bd81", kill_on_drop: false }`
[INFO] [stdout] f7aac8c4667b8915ab82d22c8b4f7321f54035d6d5eb11fda694bf2405d8bd81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 07ed67a18b686ec1d0886223ace0820cf019051c45edb726f0ace1a2de176857
[INFO] running `Command { std: "docker" "start" "-a" "07ed67a18b686ec1d0886223ace0820cf019051c45edb726f0ace1a2de176857", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking nyar_ast v0.0.8
[INFO] [stderr]  Documenting nyar_valkyrie v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(format_args_nl)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[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 document `nyar_valkyrie`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name nyar_valkyrie src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-5e37eee3e84fafab.rmeta --extern nyar_ast=/opt/rustwide/target/debug/deps/libnyar_ast-ca1e57a043b67f88.rmeta --extern pest=/opt/rustwide/target/debug/deps/libpest-58dd7eca9aaa394a.rmeta --cap-lints=warn --crate-version 0.0.8` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "07ed67a18b686ec1d0886223ace0820cf019051c45edb726f0ace1a2de176857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07ed67a18b686ec1d0886223ace0820cf019051c45edb726f0ace1a2de176857", kill_on_drop: false }`
[INFO] [stdout] 07ed67a18b686ec1d0886223ace0820cf019051c45edb726f0ace1a2de176857
