[INFO] cloning repository https://github.com/the8472/bt-dht-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/the8472/bt-dht-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe8472%2Fbt-dht-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe8472%2Fbt-dht-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfd58cad97306449120f1aa693b9c3547dda1fe0
[INFO] documenting the8472/bt-dht-rs against master#d7d9f15be205b45d44700e7ac33b4f79b91f9680 for pr-117450
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe8472%2Fbt-dht-rs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/the8472/bt-dht-rs on toolchain d7d9f15be205b45d44700e7ac33b4f79b91f9680
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/the8472/bt-dht-rs
[INFO] finished tweaking git repo https://github.com/the8472/bt-dht-rs
[INFO] tweaked toml for git repo https://github.com/the8472/bt-dht-rs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/the8472/bt-dht-rs 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" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] documenting the8472/bt-dht-rs against master#50be22964035027398754e54cd3a497efb00f83e for pr-117450
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe8472%2Fbt-dht-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/the8472/bt-dht-rs on toolchain 50be22964035027398754e54cd3a497efb00f83e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/the8472/bt-dht-rs
[INFO] finished tweaking git repo https://github.com/the8472/bt-dht-rs
[INFO] tweaked toml for git repo https://github.com/the8472/bt-dht-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/the8472/bt-dht-rs 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" "+50be22964035027398754e54cd3a497efb00f83e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] documenting the8472/bt-dht-rs against master#50be22964035027398754e54cd3a497efb00f83e for pr-117450
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe8472%2Fbt-dht-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/the8472/bt-dht-rs on toolchain 50be22964035027398754e54cd3a497efb00f83e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/the8472/bt-dht-rs
[INFO] finished tweaking git repo https://github.com/the8472/bt-dht-rs
[INFO] tweaked toml for git repo https://github.com/the8472/bt-dht-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/the8472/bt-dht-rs 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" "+50be22964035027398754e54cd3a497efb00f83e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded btoi v0.4.2
[INFO] [stderr]   Downloaded hashlink v0.8.0
[INFO] [stderr]   Downloaded serde_bencode v0.2.3
[INFO] [stderr]   Downloaded fern v0.6.1
[INFO] [stderr]   Downloaded hdrhistogram v7.5.1
[INFO] [stderr]   Downloaded skip32 v1.0.5
[INFO] [stderr]   Downloaded io-uring v0.5.3
[INFO] [stderr]   Downloaded tokio-uring v0.3.0
[INFO] [stderr]   Downloaded serde_bencoded v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 285de1d07e4927bf444b20f8e5dca12f5d9b7fa9388e30d2bf405856e479a088
[INFO] running `Command { std: "docker" "start" "-a" "285de1d07e4927bf444b20f8e5dca12f5d9b7fa9388e30d2bf405856e479a088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "285de1d07e4927bf444b20f8e5dca12f5d9b7fa9388e30d2bf405856e479a088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "285de1d07e4927bf444b20f8e5dca12f5d9b7fa9388e30d2bf405856e479a088", kill_on_drop: false }`
[INFO] [stdout] 285de1d07e4927bf444b20f8e5dca12f5d9b7fa9388e30d2bf405856e479a088
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+50be22964035027398754e54cd3a497efb00f83e" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b5b60e319adfd1e85cb3bf114b2d2399ff05e8e3b9003ae6e1f486c7f2bd57c
[INFO] running `Command { std: "docker" "start" "-a" "4b5b60e319adfd1e85cb3bf114b2d2399ff05e8e3b9003ae6e1f486c7f2bd57c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling tokio v1.20.1
[INFO] [stderr]    Compiling io-uring v0.5.3
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]    Compiling libsqlite3-sys v0.25.1
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.143
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking hashlink v0.8.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking btoi v0.4.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking crc-catalog v2.1.0
[INFO] [stderr]     Checking nix v0.25.0
[INFO] [stderr]     Checking crc v3.0.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tokio-uring v0.3.0
[INFO] [stderr]     Checking rusqlite v0.28.0
[INFO] [stderr]     Checking blake2 v0.10.4
[INFO] [stderr]     Checking serde_bytes v0.11.7
[INFO] [stderr]     Checking serde_bencoded v0.3.1
[INFO] [stderr]     Checking fern v0.6.1
[INFO] [stderr]     Checking serde_bencode v0.2.3
[INFO] [stderr]     Checking skip32 v1.0.5
[INFO] [stderr]     Checking hdrhistogram v7.5.1
[INFO] [stderr]  Documenting dht-crawler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `hash_drain_filter`
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(hash_drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `dht-crawler`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/50be22964035027398754e54cd3a497efb00f83e/bin/rustdoc --edition=2021 --crate-type bin --crate-name dht_crawler src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=b998be1b7bed5635 -L dependency=/opt/rustwide/target/debug/deps --extern blake2=/opt/rustwide/target/debug/deps/libblake2-0e756fe2dd62a8d6.rmeta --extern crc=/opt/rustwide/target/debug/deps/libcrc-11d10e63a2c16e31.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-9d278544138e3151.rmeta --extern fern=/opt/rustwide/target/debug/deps/libfern-f6c9c3e80267aac8.rmeta --extern hdrhistogram=/opt/rustwide/target/debug/deps/libhdrhistogram-e187d8a2b067115d.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-2ea5a3b595b9e151.rmeta --extern io_uring=/opt/rustwide/target/debug/deps/libio_uring-d20f0467b364ec9b.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-2eca50460818a6c7.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-4114a7e161ab85b2.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-28222875614fb87e.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-aa9b4e642ea71bf6.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-6bf3058f9e7c19ea.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-5ae691f5604056f6.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-2334601c3d7d4ec6.rmeta --extern serde_bencode=/opt/rustwide/target/debug/deps/libserde_bencode-a4c0082a3f0e06f6.rmeta --extern serde_bencoded=/opt/rustwide/target/debug/deps/libserde_bencoded-52f63d2d6134cd45.rmeta --extern serde_bytes=/opt/rustwide/target/debug/deps/libserde_bytes-a6add2ca25d3a607.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-6ebe9155abb64732.so --extern skip32=/opt/rustwide/target/debug/deps/libskip32-2aa4ba90491b40a2.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-10eb0ef10a833e4b.rmeta --extern tokio_uring=/opt/rustwide/target/debug/deps/libtokio_uring-8b441781d71e0a47.rmeta --cap-lints=forbid --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "4b5b60e319adfd1e85cb3bf114b2d2399ff05e8e3b9003ae6e1f486c7f2bd57c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b5b60e319adfd1e85cb3bf114b2d2399ff05e8e3b9003ae6e1f486c7f2bd57c", kill_on_drop: false }`
[INFO] [stdout] 4b5b60e319adfd1e85cb3bf114b2d2399ff05e8e3b9003ae6e1f486c7f2bd57c