[INFO] fetching crate zopfli 0.8.0...
[INFO] documenting zopfli-0.8.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate zopfli 0.8.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate zopfli 0.8.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zopfli 0.8.0
[INFO] finished tweaking crates.io crate zopfli 0.8.0
[INFO] tweaked toml for crates.io crate zopfli 0.8.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate zopfli 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proptest-derive v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbbe5b4d3d5319133aeee8009f63c60609abd61cfde79166821e0eb7f4446302
[INFO] running `Command { std: "docker" "start" "-a" "bbbe5b4d3d5319133aeee8009f63c60609abd61cfde79166821e0eb7f4446302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbbe5b4d3d5319133aeee8009f63c60609abd61cfde79166821e0eb7f4446302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbbe5b4d3d5319133aeee8009f63c60609abd61cfde79166821e0eb7f4446302", kill_on_drop: false }`
[INFO] [stdout] bbbe5b4d3d5319133aeee8009f63c60609abd61cfde79166821e0eb7f4446302
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c81b8bb90e7792f1b9f961f5282c0fea2485541affb175f2da5502929f180187
[INFO] running `Command { std: "docker" "start" "-a" "c81b8bb90e7792f1b9f961f5282c0fea2485541affb175f2da5502929f180187", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]  Documenting zopfli v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `deflate::DeflateEncoder<W>: std::io::Write` is not satisfied
[INFO] [stdout]   --> src/deflate.rs:63:73
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn new_buffered(options: Options, btype: BlockType, sink: W) -> std::io::BufWriter<Self> {
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `deflate::DeflateEncoder<W>`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `std::io::BufWriter`
[INFO] [stdout]   --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/buffered/bufwriter.rs:70:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `gzip::GzipEncoder<W>: std::io::Write` is not satisfied
[INFO] [stdout]   --> src/gzip.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |     ) -> Result<std::io::BufWriter<Self>, Error> {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `gzip::GzipEncoder<W>`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `std::io::BufWriter`
[INFO] [stdout]   --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/buffered/bufwriter.rs:70:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `zlib::ZlibEncoder<W>: std::io::Write` is not satisfied
[INFO] [stdout]   --> src/zlib.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |     ) -> Result<std::io::BufWriter<Self>, Error> {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `zlib::ZlibEncoder<W>`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `std::io::BufWriter`
[INFO] [stdout]   --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/buffered/bufwriter.rs:70:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `zopfli`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name zopfli src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="gzip"' --cfg 'feature="std"' --cfg 'feature="zlib"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=3f5365fabb90792b -L dependency=/opt/rustwide/target/debug/deps --extern crc32fast=/opt/rustwide/target/debug/deps/libcrc32fast-aca29bfe4f71d1d8.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-91e42ebaf8a62e54.rmeta --extern simd_adler32=/opt/rustwide/target/debug/deps/libsimd_adler32-a33d5372fa449611.rmeta --extern typed_arena=/opt/rustwide/target/debug/deps/libtyped_arena-e4d5bdc60187f826.rmeta --cap-lints=warn --crate-version 0.8.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "c81b8bb90e7792f1b9f961f5282c0fea2485541affb175f2da5502929f180187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c81b8bb90e7792f1b9f961f5282c0fea2485541affb175f2da5502929f180187", kill_on_drop: false }`
[INFO] [stdout] c81b8bb90e7792f1b9f961f5282c0fea2485541affb175f2da5502929f180187
