[INFO] cloning repository https://github.com/Dolpheyn/dist-rust-buted-2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dolpheyn/dist-rust-buted-2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDolpheyn%2Fdist-rust-buted-2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDolpheyn%2Fdist-rust-buted-2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c67725afbf7e8ded388f71e6fd8ec20a6bc97eab
[INFO] documenting Dolpheyn/dist-rust-buted-2 against 1.91.0 for beta-1.92-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDolpheyn%2Fdist-rust-buted-2" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Dolpheyn/dist-rust-buted-2
[INFO] finished tweaking git repo https://github.com/Dolpheyn/dist-rust-buted-2
[INFO] tweaked toml for git repo https://github.com/Dolpheyn/dist-rust-buted-2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Dolpheyn/dist-rust-buted-2 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Dolpheyn/dist-rust-buted-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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prost-build v0.11.3
[INFO] [stderr]   Downloaded prost v0.11.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62b1f6f58a291a53befbc71bd6f943db7b65df1a4d41d9a8218df0d084c8e7fd
[INFO] running `Command { std: "docker" "start" "-a" "62b1f6f58a291a53befbc71bd6f943db7b65df1a4d41d9a8218df0d084c8e7fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62b1f6f58a291a53befbc71bd6f943db7b65df1a4d41d9a8218df0d084c8e7fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62b1f6f58a291a53befbc71bd6f943db7b65df1a4d41d9a8218df0d084c8e7fd", kill_on_drop: false }`
[INFO] [stdout] 62b1f6f58a291a53befbc71bd6f943db7b65df1a4d41d9a8218df0d084c8e7fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89588c1172927e6b0533ef076ab52efcccaddb742bbf08574a23a3b58d18b4b2
[INFO] running `Command { std: "docker" "start" "-a" "89588c1172927e6b0533ef076ab52efcccaddb742bbf08574a23a3b58d18b4b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling tokio v1.22.0
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]    Compiling bytes v1.3.0
[INFO] [stderr]    Compiling prettyplease v0.1.21
[INFO] [stderr]    Compiling async-trait v0.1.59
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling petgraph v0.6.2
[INFO] [stderr]    Compiling serde v1.0.148
[INFO] [stderr]     Checking matchit v0.7.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling axum-core v0.3.0
[INFO] [stderr]    Compiling axum v0.6.1
[INFO] [stderr]    Compiling which v4.3.0
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]     Checking num_cpus v1.14.0
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling regex v1.7.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling tracing-attributes v0.1.23
[INFO] [stderr]    Compiling prost-derive v0.11.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking async-stream v0.3.3
[INFO] [stderr]     Checking thiserror v1.0.38
[INFO] [stderr]     Checking pin-project v1.0.12
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]    Compiling prost v0.11.3
[INFO] [stderr]    Compiling prost-types v0.11.2
[INFO] [stderr]     Checking futures-executor v0.3.25
[INFO] [stderr]    Compiling prost-build v0.11.3
[INFO] [stderr]     Checking futures v0.3.25
[INFO] [stderr]    Compiling tonic-build v0.8.4
[INFO] [stderr]     Checking tokio-util v0.7.4
[INFO] [stderr]     Checking tokio-io-timeout v1.2.0
[INFO] [stderr]     Checking tokio-stream v0.1.11
[INFO] [stderr]     Checking h2 v0.3.15
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]    Compiling dist-rust-buted v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tower-http v0.3.5
[INFO] [stderr]     Checking hyper v0.14.23
[INFO] [stderr]     Checking hyper-timeout v0.4.1
[INFO] [stderr]     Checking tonic v0.8.3
[INFO] [stderr]  Documenting dist-rust-buted v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/svc_dsc/server/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(hash_drain_filter)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/svc_dsc/server/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(exact_size_is_empty)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `dist-rust-buted`
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "89588c1172927e6b0533ef076ab52efcccaddb742bbf08574a23a3b58d18b4b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89588c1172927e6b0533ef076ab52efcccaddb742bbf08574a23a3b58d18b4b2", kill_on_drop: false }`
[INFO] [stdout] 89588c1172927e6b0533ef076ab52efcccaddb742bbf08574a23a3b58d18b4b2
