[INFO] cloning repository https://github.com/Descent-Studios/async-loopinator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Descent-Studios/async-loopinator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDescent-Studios%2Fasync-loopinator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDescent-Studios%2Fasync-loopinator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c6bd4c1d12880047b75f062b465fee6d08c6105
[INFO] documenting Descent-Studios/async-loopinator 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%2FDescent-Studios%2Fasync-loopinator" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Descent-Studios/async-loopinator
[INFO] finished tweaking git repo https://github.com/Descent-Studios/async-loopinator
[INFO] tweaked toml for git repo https://github.com/Descent-Studios/async-loopinator written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Descent-Studios/async-loopinator 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/Descent-Studios/async-loopinator 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]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/snailmusic/serde_osc.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jack-sys v0.5.1
[INFO] [stderr]   Downloaded jack v0.13.2
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e73cd4df3828f46900e8947f1c008e772f00448fe21a2b78393147b39532850
[INFO] running `Command { std: "docker" "start" "-a" "9e73cd4df3828f46900e8947f1c008e772f00448fe21a2b78393147b39532850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e73cd4df3828f46900e8947f1c008e772f00448fe21a2b78393147b39532850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e73cd4df3828f46900e8947f1c008e772f00448fe21a2b78393147b39532850", kill_on_drop: false }`
[INFO] [stdout] 9e73cd4df3828f46900e8947f1c008e772f00448fe21a2b78393147b39532850
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/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] fb29906eb9871f8eddd20cf7248ceb8bda6e2a4ce9d2cc9c6de7f79e4495f977
[INFO] running `Command { std: "docker" "start" "-a" "fb29906eb9871f8eddd20cf7248ceb8bda6e2a4ce9d2cc9c6de7f79e4495f977", kill_on_drop: false }`
[INFO] [stderr]    Compiling jack v0.13.2
[INFO] [stderr]    Compiling jack-sys v0.5.1
[INFO] [stderr]     Checking serde_bytes v0.11.17
[INFO] [stderr]     Checking serde_osc v0.4.2 (https://github.com/snailmusic/serde_osc.git#cd41566d)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/serde_osc-dc52cddd2702fc12/cd41566/src/lib.rs:88:1
[INFO] [stdout]    |
[INFO] [stdout] 88 | #![feature(try_from)]
[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 compile `serde_osc` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fb29906eb9871f8eddd20cf7248ceb8bda6e2a4ce9d2cc9c6de7f79e4495f977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb29906eb9871f8eddd20cf7248ceb8bda6e2a4ce9d2cc9c6de7f79e4495f977", kill_on_drop: false }`
[INFO] [stdout] fb29906eb9871f8eddd20cf7248ceb8bda6e2a4ce9d2cc9c6de7f79e4495f977
