[INFO] fetching crate SLSR 0.0.1...
[INFO] documenting SLSR-0.0.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate SLSR 0.0.1 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate SLSR 0.0.1 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate SLSR 0.0.1
[INFO] finished tweaking crates.io crate SLSR 0.0.1
[INFO] tweaked toml for crates.io crate SLSR 0.0.1 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bb7affeecbc25669489e10c09953e07de6c14cead533383a33d8a74e8f1236a
[INFO] running `Command { std: "docker" "start" "-a" "2bb7affeecbc25669489e10c09953e07de6c14cead533383a33d8a74e8f1236a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bb7affeecbc25669489e10c09953e07de6c14cead533383a33d8a74e8f1236a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bb7affeecbc25669489e10c09953e07de6c14cead533383a33d8a74e8f1236a", kill_on_drop: false }`
[INFO] [stdout] 2bb7affeecbc25669489e10c09953e07de6c14cead533383a33d8a74e8f1236a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8f1d6d52a1ca7755233f6f0bb24ca887f9f484cce9cafd329f6ae07f9658cb1
[INFO] running `Command { std: "docker" "start" "-a" "e8f1d6d52a1ca7755233f6f0bb24ca887f9f484cce9cafd329f6ae07f9658cb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking union-find v0.3.3
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking docopt v1.1.1
[INFO] [stderr]    Compiling docopt v0.8.3
[INFO] [stderr]    Compiling docopt_macros v0.8.1
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/docopt_macros-0.8.1/src/macro.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(plugin_registrar, quote, rustc_private)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: a __rustc_plugin_registrar symbol must now be defined instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/docopt_macros-0.8.1/src/macro.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(plugin_registrar, quote, rustc_private)]
[INFO] [stdout]   |                              ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/docopt_macros-0.8.1/src/macro.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate syntax;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `rustc_plugin`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/docopt_macros-0.8.1/src/macro.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate rustc_plugin;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe you need to install the missing components with: `rustup component add rust-src rustc-dev llvm-tools-preview`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `plugin_registrar` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/docopt_macros-0.8.1/src/macro.rs:35:3
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[plugin_registrar]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `plugin_registrar` is in scope, but it is a function, not an attribute
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `quote_item` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/docopt_macros-0.8.1/src/macro.rs:70:18
[INFO] [stdout]    |
[INFO] [stdout] 70 |         its.push(quote_item!(cx,
[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/docopt_macros-0.8.1/src/macro.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(plugin_registrar, quote, rustc_private)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `docopt_macros` due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "e8f1d6d52a1ca7755233f6f0bb24ca887f9f484cce9cafd329f6ae07f9658cb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8f1d6d52a1ca7755233f6f0bb24ca887f9f484cce9cafd329f6ae07f9658cb1", kill_on_drop: false }`
[INFO] [stdout] e8f1d6d52a1ca7755233f6f0bb24ca887f9f484cce9cafd329f6ae07f9658cb1