[INFO] fetching crate release-manager 0.1.4...
[INFO] documenting release-manager-0.1.4 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate release-manager 0.1.4 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate release-manager 0.1.4 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 release-manager 0.1.4
[INFO] finished tweaking crates.io crate release-manager 0.1.4
[INFO] tweaked toml for crates.io crate release-manager 0.1.4 written to /workspace/builds/worker-9/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]  Downloading crates ...
[INFO] [stderr]   Downloaded zip v0.2.8
[INFO] [stderr]   Downloaded structopt-derive v0.1.6
[INFO] [stderr]   Downloaded structopt v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] b3c5d6035f8aaac42fb10437409a45e60f213808c921c8e7c64c6668f3968020
[INFO] running `Command { std: "docker" "start" "-a" "b3c5d6035f8aaac42fb10437409a45e60f213808c921c8e7c64c6668f3968020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3c5d6035f8aaac42fb10437409a45e60f213808c921c8e7c64c6668f3968020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3c5d6035f8aaac42fb10437409a45e60f213808c921c8e7c64c6668f3968020", kill_on_drop: false }`
[INFO] [stdout] b3c5d6035f8aaac42fb10437409a45e60f213808c921c8e7c64c6668f3968020
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] fd96efcba1c3c7847a0b8e1b42d891c8c2de4a759674bb04680a5a8f32b7e156
[INFO] running `Command { std: "docker" "start" "-a" "fd96efcba1c3c7847a0b8e1b42d891c8c2de4a759674bb04680a5a8f32b7e156", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking podio v0.1.7
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking msdos_time v0.1.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking structopt v0.1.7
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking zip v0.2.8
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]  Documenting release-manager v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(entry_and_modify)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(try_from)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `release-manager`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name release_manager 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 env_logger=/opt/rustwide/target/debug/deps/libenv_logger-4a6ca4560db8b3d1.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-7d3e64e12564167b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-6a5809dcce96c926.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-a66a1fdf9c467eb8.so --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-478747ebf89c79f1.rmeta --extern structopt_derive=/opt/rustwide/target/debug/deps/libstructopt_derive-07ecc964d30474e1.so --extern toml=/opt/rustwide/target/debug/deps/libtoml-dc0a92f3574d8630.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-209acec34e8a5672.rmeta --extern zip=/opt/rustwide/target/debug/deps/libzip-f198d131c4332c5c.rmeta --cap-lints=warn --crate-version 0.1.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "fd96efcba1c3c7847a0b8e1b42d891c8c2de4a759674bb04680a5a8f32b7e156", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd96efcba1c3c7847a0b8e1b42d891c8c2de4a759674bb04680a5a8f32b7e156", kill_on_drop: false }`
[INFO] [stdout] fd96efcba1c3c7847a0b8e1b42d891c8c2de4a759674bb04680a5a8f32b7e156
