[INFO] fetching crate dora 0.0.2...
[INFO] documenting dora-0.0.2 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate dora 0.0.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate dora 0.0.2 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 dora 0.0.2
[INFO] finished tweaking crates.io crate dora 0.0.2
[INFO] tweaked toml for crates.io crate dora 0.0.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate dora 0.0.2 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lock_api v0.3.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.7.2
[INFO] [stderr]   Downloaded parking_lot_core v0.3.1
[INFO] [stderr]   Downloaded ucd-util v0.1.5
[INFO] [stderr]   Downloaded parking_lot v0.6.4
[INFO] [stderr]   Downloaded strsim v0.6.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.5
[INFO] [stderr]   Downloaded memoffset v0.5.1
[INFO] [stderr]   Downloaded c2-chacha v0.2.2
[INFO] [stderr]   Downloaded bitflags v1.2.0
[INFO] [stderr]   Downloaded getrandom v0.1.12
[INFO] [stderr]   Downloaded wasi v0.7.0
[INFO] [stderr]   Downloaded rand v0.7.2
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[INFO] [stderr]   Downloaded libc v0.2.62
[INFO] [stderr]   Downloaded backtrace-sys v0.1.31
[INFO] [stderr]   Downloaded aho-corasick v0.7.6
[INFO] [stderr]   Downloaded backtrace v0.3.38
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded docopt v0.7.0
[INFO] [stderr]   Downloaded threadpool v1.7.1
[INFO] [stderr]   Downloaded cc v1.0.45
[INFO] [stderr]   Downloaded utf8-ranges v1.0.4
[INFO] [stderr]   Downloaded smallvec v0.6.10
[INFO] [stderr]   Downloaded parking_lot_core v0.6.2
[INFO] [stderr]   Downloaded capstone v0.6.0
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded num_cpus v1.10.1
[INFO] [stderr]   Downloaded scopeguard v1.0.0
[INFO] [stderr]   Downloaded rand_chacha v0.2.1
[INFO] [stderr]   Downloaded arrayvec v0.4.11
[INFO] [stderr]   Downloaded byteorder v1.3.2
[INFO] [stderr]   Downloaded dora-parser v0.0.2
[INFO] [stderr]   Downloaded capstone-sys v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] da76c62da346178f40ef3e4fed7764dba4364b6e84104c63720141773430348f
[INFO] running `Command { std: "docker" "start" "-a" "da76c62da346178f40ef3e4fed7764dba4364b6e84104c63720141773430348f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da76c62da346178f40ef3e4fed7764dba4364b6e84104c63720141773430348f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da76c62da346178f40ef3e4fed7764dba4364b6e84104c63720141773430348f", kill_on_drop: false }`
[INFO] [stdout] da76c62da346178f40ef3e4fed7764dba4364b6e84104c63720141773430348f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ebfaeb6052b3412f834f077edf2afee88157838cbe749a0975d982b57b334f33
[INFO] running `Command { std: "docker" "start" "-a" "ebfaeb6052b3412f834f077edf2afee88157838cbe749a0975d982b57b334f33", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling capstone-sys v0.10.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]    Compiling dora v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking dora-parser v0.0.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking docopt v0.7.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking capstone v0.6.0
[INFO] [stderr]  Documenting dora v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![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] [stderr] error: could not document `dora`
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[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=2018 --crate-type lib --crate-name dora src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c9d1215844b4f8a7 -L dependency=/opt/rustwide/target/debug/deps --extern backtrace=/opt/rustwide/target/debug/deps/libbacktrace-e4c0299cdaef31d7.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-56cb338e3faebbf4.rmeta --extern capstone=/opt/rustwide/target/debug/deps/libcapstone-133c77a801934483.rmeta --extern crossbeam_deque=/opt/rustwide/target/debug/deps/libcrossbeam_deque-a26cec85d5580a79.rmeta --extern docopt=/opt/rustwide/target/debug/deps/libdocopt-1b5ab1e79fb5d68b.rmeta --extern dora_parser=/opt/rustwide/target/debug/deps/libdora_parser-58631adcfa6283dc.rmeta --extern fixedbitset=/opt/rustwide/target/debug/deps/libfixedbitset-629a773ea4b2993f.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-8268c8d3259aa9b5.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-22302b015bf201f1.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-fa08d5c8ff91c9e5.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-552c3d5480963666.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-b2ac30b20e6736a9.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-6b29f090ab3e79ca.rmeta --extern scoped_threadpool=/opt/rustwide/target/debug/deps/libscoped_threadpool-33d5464174fdaedc.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-f7cd68994f116e3d.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-25650ca5723141c9.rmeta --cap-lints=warn --crate-version 0.0.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ebfaeb6052b3412f834f077edf2afee88157838cbe749a0975d982b57b334f33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebfaeb6052b3412f834f077edf2afee88157838cbe749a0975d982b57b334f33", kill_on_drop: false }`
[INFO] [stdout] ebfaeb6052b3412f834f077edf2afee88157838cbe749a0975d982b57b334f33
