[INFO] fetching crate dyn-context 0.17.2...
[INFO] documenting dyn-context-0.17.2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate dyn-context 0.17.2 into /workspace/builds/worker-98/source
[INFO] validating manifest of crates.io crate dyn-context 0.17.2 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dyn-context 0.17.2
[INFO] finished tweaking crates.io crate dyn-context 0.17.2
[INFO] tweaked toml for crates.io crate dyn-context 0.17.2 written to /workspace/builds/worker-98/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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 macro-attr-2018 v2.1.2
[INFO] [stderr]   Downloaded indoc v1.0.6
[INFO] [stderr]   Downloaded generics v0.4.4
[INFO] [stderr]   Downloaded dyn-context-macro v0.0.4
[INFO] [stderr]   Downloaded phantom-type v0.4.2
[INFO] [stderr]   Downloaded educe v0.4.19
[INFO] [stderr]   Downloaded enum-ordinalize v3.1.11
[INFO] [stderr]   Downloaded panicking v0.1.1
[INFO] [stderr]   Downloaded num-bigint v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b09150db8d318505ebb72426c6e07ae0ddf67700ef1d58835b32ec09c1d1389
[INFO] running `Command { std: "docker" "start" "-a" "0b09150db8d318505ebb72426c6e07ae0ddf67700ef1d58835b32ec09c1d1389", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b09150db8d318505ebb72426c6e07ae0ddf67700ef1d58835b32ec09c1d1389", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b09150db8d318505ebb72426c6e07ae0ddf67700ef1d58835b32ec09c1d1389", kill_on_drop: false }`
[INFO] [stdout] 0b09150db8d318505ebb72426c6e07ae0ddf67700ef1d58835b32ec09c1d1389
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1329f51c9d12cbd03feade2f942996734d6b95eb3d94ac811b7133fdeb6c94f1
[INFO] running `Command { std: "docker" "start" "-a" "1329f51c9d12cbd03feade2f942996734d6b95eb3d94ac811b7133fdeb6c94f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking panicking v0.1.1
[INFO] [stderr]    Compiling indoc v1.0.6
[INFO] [stderr]     Checking generics v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling object v0.28.4
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling enum-ordinalize v3.1.11
[INFO] [stderr]    Compiling try_match_inner v0.4.0
[INFO] [stderr]    Compiling educe v0.4.19
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling try_match v0.3.0
[INFO] [stderr]    Compiling single v1.0.0
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling dyn-context-macro v0.0.4
[INFO] [stderr]     Checking phantom-type v0.4.2
[INFO] [stderr]  Documenting dyn-context v0.17.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature="nightly", feature(never_type))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `dyn-context`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name dyn_context src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="nightly"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=7128af2190a90535 -L dependency=/opt/rustwide/target/debug/deps --extern dyn_context_macro=/opt/rustwide/target/debug/deps/libdyn_context_macro-5b2cddfb49365469.so --extern educe=/opt/rustwide/target/debug/deps/libeduce-4763f82c3bb18a70.so --extern generics=/opt/rustwide/target/debug/deps/libgenerics-1af0e4aa30deb5c1.rmeta --extern indoc=/opt/rustwide/target/debug/deps/libindoc-4f354f9e6ce2f4d0.so --extern panicking=/opt/rustwide/target/debug/deps/libpanicking-39f16aa4f687b452.rmeta --extern paste=/opt/rustwide/target/debug/deps/libpaste-bd6d0284544a8d29.so --extern phantom_type=/opt/rustwide/target/debug/deps/libphantom_type-6f3c7985e787283b.rmeta --cap-lints=warn --crate-version 0.17.2` (exit status: 1)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "1329f51c9d12cbd03feade2f942996734d6b95eb3d94ac811b7133fdeb6c94f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1329f51c9d12cbd03feade2f942996734d6b95eb3d94ac811b7133fdeb6c94f1", kill_on_drop: false }`
[INFO] [stdout] 1329f51c9d12cbd03feade2f942996734d6b95eb3d94ac811b7133fdeb6c94f1