[INFO] fetching crate sanitizeable 0.1.1...
[INFO] documenting sanitizeable-0.1.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate sanitizeable 0.1.1 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate sanitizeable 0.1.1 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sanitizeable 0.1.1
[INFO] finished tweaking crates.io crate sanitizeable 0.1.1
[INFO] tweaked toml for crates.io crate sanitizeable 0.1.1 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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" "+1.61.0" "fetch" "--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 sanitizeable_derive v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc47fa384cbba92b178654bc56ddb65d23e0db445920a3ffbfea740be730fb4d
[INFO] running `Command { std: "docker" "start" "-a" "dc47fa384cbba92b178654bc56ddb65d23e0db445920a3ffbfea740be730fb4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc47fa384cbba92b178654bc56ddb65d23e0db445920a3ffbfea740be730fb4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc47fa384cbba92b178654bc56ddb65d23e0db445920a3ffbfea740be730fb4d", kill_on_drop: false }`
[INFO] [stdout] dc47fa384cbba92b178654bc56ddb65d23e0db445920a3ffbfea740be730fb4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4796d3279b8308072e5703b16b9409f365cff6ddde94a77a4e8dd85be7cbb417
[INFO] running `Command { std: "docker" "start" "-a" "4796d3279b8308072e5703b16b9409f365cff6ddde94a77a4e8dd85be7cbb417", 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 quote v1.0.18
[INFO] [stderr]    Compiling sanitizeable_derive v0.1.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sanitizeable_derive-0.1.1/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sanitizeable_derive` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4796d3279b8308072e5703b16b9409f365cff6ddde94a77a4e8dd85be7cbb417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4796d3279b8308072e5703b16b9409f365cff6ddde94a77a4e8dd85be7cbb417", kill_on_drop: false }`
[INFO] [stdout] 4796d3279b8308072e5703b16b9409f365cff6ddde94a77a4e8dd85be7cbb417