[INFO] fetching crate pippin 0.1.0...
[INFO] documenting pippin-0.1.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate pippin 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate pippin 0.1.0 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 pippin 0.1.0
[INFO] finished tweaking crates.io crate pippin 0.1.0
[INFO] tweaked toml for crates.io crate pippin 0.1.0 written to /workspace/builds/worker-2-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 vec_map v0.6.0
[INFO] [stderr]   Downloaded docopt v0.6.86
[INFO] [stderr]   Downloaded hashindexed v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f370ef8e2946332a6731230ae4bd1ce237dc66fd1a79fdcf4ce561d643315770
[INFO] running `Command { std: "docker" "start" "-a" "f370ef8e2946332a6731230ae4bd1ce237dc66fd1a79fdcf4ce561d643315770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f370ef8e2946332a6731230ae4bd1ce237dc66fd1a79fdcf4ce561d643315770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f370ef8e2946332a6731230ae4bd1ce237dc66fd1a79fdcf4ce561d643315770", kill_on_drop: false }`
[INFO] [stdout] f370ef8e2946332a6731230ae4bd1ce237dc66fd1a79fdcf4ce561d643315770
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f44486ad18dc52f189034baeb76ed09554835f49ab74fbae947b35c205f54d8d
[INFO] running `Command { std: "docker" "start" "-a" "f44486ad18dc52f189034baeb76ed09554835f49ab74fbae947b35c205f54d8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking hashindexed v0.1.1
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking vec_map v0.6.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]  Documenting pippin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | #![feature(box_syntax)]
[INFO] [stdout]    |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: replaced with `#[rustc_box]`
[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 `pippin`
[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 pippin src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c1053c0404cf9b7a -L dependency=/opt/rustwide/target/debug/deps --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-52f644dab3feedd1.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-8c36311bbc523b05.rmeta --extern hashindexed=/opt/rustwide/target/debug/deps/libhashindexed-68fadec568129034.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-691c330846d7a542.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-31679f334e4dd7e9.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-9a2a3e0dab4d2d97.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-aa87cc47f095cca0.rmeta --extern vec_map=/opt/rustwide/target/debug/deps/libvec_map-fd010082d6a97bc1.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-dd6ec1147ff65e20.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f44486ad18dc52f189034baeb76ed09554835f49ab74fbae947b35c205f54d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f44486ad18dc52f189034baeb76ed09554835f49ab74fbae947b35c205f54d8d", kill_on_drop: false }`
[INFO] [stdout] f44486ad18dc52f189034baeb76ed09554835f49ab74fbae947b35c205f54d8d
