[INFO] fetching crate soundchange 0.0.8...
[INFO] documenting soundchange-0.0.8 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate soundchange 0.0.8 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate soundchange 0.0.8 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 soundchange 0.0.8
[INFO] finished tweaking crates.io crate soundchange 0.0.8
[INFO] tweaked toml for crates.io crate soundchange 0.0.8 written to /workspace/builds/worker-27/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 log v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 90b90ec7b84b9ee9bd2c2ae92f95b45aea9d353fa2913b386b44a3b704be14ac
[INFO] running `Command { std: "docker" "start" "-a" "90b90ec7b84b9ee9bd2c2ae92f95b45aea9d353fa2913b386b44a3b704be14ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90b90ec7b84b9ee9bd2c2ae92f95b45aea9d353fa2913b386b44a3b704be14ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90b90ec7b84b9ee9bd2c2ae92f95b45aea9d353fa2913b386b44a3b704be14ac", kill_on_drop: false }`
[INFO] [stdout] 90b90ec7b84b9ee9bd2c2ae92f95b45aea9d353fa2913b386b44a3b704be14ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] bdd72f762455e4b1477388a7e8052c12333f35a1802699b60997b4ef2abfe28e
[INFO] running `Command { std: "docker" "start" "-a" "bdd72f762455e4b1477388a7e8052c12333f35a1802699b60997b4ef2abfe28e", kill_on_drop: false }`
[INFO] [stderr]  Documenting soundchange v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::borrow::IntoCow`
[INFO] [stdout]   --> src/lib.rs:64:24
[INFO] [stdout]    |
[INFO] [stdout] 64 | use std::borrow::{Cow, IntoCow};
[INFO] [stdout]    |                        ^^^^^^^ no `IntoCow` in `borrow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::str::CharRange`
[INFO] [stdout]   --> src/lib.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | use std::str::CharRange;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ no `CharRange` in `str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:62:1
[INFO] [stdout]    |
[INFO] [stdout] 62 | #![feature(unboxed_closures, core, collections)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `soundchange`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name soundchange src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=91c27315ed42a963 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.8` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "bdd72f762455e4b1477388a7e8052c12333f35a1802699b60997b4ef2abfe28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdd72f762455e4b1477388a7e8052c12333f35a1802699b60997b4ef2abfe28e", kill_on_drop: false }`
[INFO] [stdout] bdd72f762455e4b1477388a7e8052c12333f35a1802699b60997b4ef2abfe28e