[INFO] fetching crate rustproof 0.1.0...
[INFO] documenting rustproof-0.1.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate rustproof 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate rustproof 0.1.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustproof 0.1.0
[INFO] finished tweaking crates.io crate rustproof 0.1.0
[INFO] tweaked toml for crates.io crate rustproof 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bit-set v0.3.0
[INFO] [stderr]   Downloaded lalrpop-intern v0.11.0
[INFO] [stderr]   Downloaded itertools v0.3.25
[INFO] [stderr]   Downloaded docopt v0.6.86
[INFO] [stderr]   Downloaded petgraph v0.1.18
[INFO] [stderr]   Downloaded unicode-xid v0.0.2
[INFO] [stderr]   Downloaded regex-syntax v0.2.6
[INFO] [stderr]   Downloaded rustproof-libsmt v0.1.0
[INFO] [stderr]   Downloaded petgraph v0.2.10
[INFO] [stderr]   Downloaded lalrpop-snap v0.11.0
[INFO] [stderr]   Downloaded lalrpop v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8d0d562435aa4e267f6be509fd87de9a1cf0b11d8f760131cc6bd0e3e11559d
[INFO] running `Command { std: "docker" "start" "-a" "b8d0d562435aa4e267f6be509fd87de9a1cf0b11d8f760131cc6bd0e3e11559d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8d0d562435aa4e267f6be509fd87de9a1cf0b11d8f760131cc6bd0e3e11559d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8d0d562435aa4e267f6be509fd87de9a1cf0b11d8f760131cc6bd0e3e11559d", kill_on_drop: false }`
[INFO] [stdout] b8d0d562435aa4e267f6be509fd87de9a1cf0b11d8f760131cc6bd0e3e11559d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49f2a8de4da58714397aa2b3735fe7037e8b67d5c3d556ebf3bc3af6ed9966ad
[INFO] running `Command { std: "docker" "start" "-a" "49f2a8de4da58714397aa2b3735fe7037e8b67d5c3d556ebf3bc3af6ed9966ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking lalrpop-util v0.11.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking petgraph v0.2.10
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking rustproof-libsmt v0.1.0
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]  Documenting rustproof v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | #![feature(plugin_registrar, 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: 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 `rustproof`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type dylib --crate-name rustproof src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b528507d7a6db95a -L dependency=/opt/rustwide/target/debug/deps --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-a3e45dbdc9717328.rmeta --extern lalrpop_util=/opt/rustwide/target/debug/deps/liblalrpop_util-eeebe4862fbacc41.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-eeb227a7545c61fd.rmeta --extern rustproof_libsmt=/opt/rustwide/target/debug/deps/librustproof_libsmt-9937455d248277e1.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "49f2a8de4da58714397aa2b3735fe7037e8b67d5c3d556ebf3bc3af6ed9966ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49f2a8de4da58714397aa2b3735fe7037e8b67d5c3d556ebf3bc3af6ed9966ad", kill_on_drop: false }`
[INFO] [stdout] 49f2a8de4da58714397aa2b3735fe7037e8b67d5c3d556ebf3bc3af6ed9966ad
