[INFO] cloning repository https://github.com/lukahasch/mesh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lukahasch/mesh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukahasch%2Fmesh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukahasch%2Fmesh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 245e9ab246912a2a57d032e27febc7fce9aa259d
[INFO] documenting lukahasch/mesh/245e9ab246912a2a57d032e27febc7fce9aa259d against 1.95.0 for beta-1.96-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukahasch%2Fmesh" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lukahasch/mesh
[INFO] finished tweaking git repo https://github.com/lukahasch/mesh
[INFO] tweaked toml for git repo https://github.com/lukahasch/mesh written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lukahasch/mesh on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lukahasch/mesh 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nom-language v0.1.0
[INFO] [stderr]   Downloaded ariadne v0.5.0
[INFO] [stderr]   Downloaded semver v1.0.25
[INFO] [stderr]   Downloaded smallmap v1.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd66127a824fb635bc559eba1843394f944badc9847bac500ca2fca6a944671d
[INFO] running `Command { std: "docker" "start" "-a" "dd66127a824fb635bc559eba1843394f944badc9847bac500ca2fca6a944671d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd66127a824fb635bc559eba1843394f944badc9847bac500ca2fca6a944671d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd66127a824fb635bc559eba1843394f944badc9847bac500ca2fca6a944671d", kill_on_drop: false }`
[INFO] [stdout] dd66127a824fb635bc559eba1843394f944badc9847bac500ca2fca6a944671d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab070ca9c94cd5af9e23eccf7a7fb768c1f072c0119c73be45b391e03f335489
[INFO] running `Command { std: "docker" "start" "-a" "ab070ca9c94cd5af9e23eccf7a7fb768c1f072c0119c73be45b391e03f335489", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.25
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking ariadne v0.5.0
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]    Compiling smallmap v1.4.2
[INFO] [stderr]     Checking nom-language v0.1.0
[INFO] [stderr]  Documenting mesh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(impl_trait_in_assoc_type, impl_trait_in_bindings)]
[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 `mesh`
[INFO] running `Command { std: "docker" "inspect" "ab070ca9c94cd5af9e23eccf7a7fb768c1f072c0119c73be45b391e03f335489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab070ca9c94cd5af9e23eccf7a7fb768c1f072c0119c73be45b391e03f335489", kill_on_drop: false }`
[INFO] [stdout] ab070ca9c94cd5af9e23eccf7a7fb768c1f072c0119c73be45b391e03f335489