[INFO] fetching crate lib_composite 0.7.0...
[INFO] documenting lib_composite-0.7.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate lib_composite 0.7.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate lib_composite 0.7.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lib_composite 0.7.0
[INFO] finished tweaking crates.io crate lib_composite 0.7.0
[INFO] tweaked toml for crates.io crate lib_composite 0.7.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const-cstr-fork v0.2.2
[INFO] [stderr]   Downloaded libc-extra v0.0.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cebc60ce88b018e5f1dc6cc8da7026a634d1e421f374cf4b0cb89c36da4b5cf
[INFO] running `Command { std: "docker" "start" "-a" "3cebc60ce88b018e5f1dc6cc8da7026a634d1e421f374cf4b0cb89c36da4b5cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cebc60ce88b018e5f1dc6cc8da7026a634d1e421f374cf4b0cb89c36da4b5cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cebc60ce88b018e5f1dc6cc8da7026a634d1e421f374cf4b0cb89c36da4b5cf", kill_on_drop: false }`
[INFO] [stdout] 3cebc60ce88b018e5f1dc6cc8da7026a634d1e421f374cf4b0cb89c36da4b5cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca48be36208ebe0055d2ce8a05d9d481a3287e62e3ad8d5929f02a13aaa95164
[INFO] running `Command { std: "docker" "start" "-a" "ca48be36208ebe0055d2ce8a05d9d481a3287e62e3ad8d5929f02a13aaa95164", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking libc v0.2.153
[INFO] [stderr]     Checking const-cstr-fork v0.2.2
[INFO] [stderr]     Checking libc-extra v0.0.15
[INFO] [stderr]  Documenting lib_composite v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(optin_builtin_traits)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: renamed to `auto_traits`
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `lib_composite`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --crate-type lib --crate-name lib_composite src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c32e433b4af9e606 -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-20f178ca3607e1d2.rmeta --extern libc_extra=/opt/rustwide/target/debug/deps/liblibc_extra-88287e1fea76d6a1.rmeta --cap-lints=warn --crate-version 0.7.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ca48be36208ebe0055d2ce8a05d9d481a3287e62e3ad8d5929f02a13aaa95164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca48be36208ebe0055d2ce8a05d9d481a3287e62e3ad8d5929f02a13aaa95164", kill_on_drop: false }`
[INFO] [stdout] ca48be36208ebe0055d2ce8a05d9d481a3287e62e3ad8d5929f02a13aaa95164
