[INFO] cloning repository https://github.com/conundrumer/spectral-decay
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/conundrumer/spectral-decay" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconundrumer%2Fspectral-decay", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconundrumer%2Fspectral-decay'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bdb3a855473b6526658e4c4c6be13bd4bcf4f006
[INFO] documenting conundrumer/spectral-decay against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconundrumer%2Fspectral-decay" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/conundrumer/spectral-decay 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] removed /workspace/builds/worker-21/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/conundrumer/spectral-decay
[INFO] finished tweaking git repo https://github.com/conundrumer/spectral-decay
[INFO] tweaked toml for git repo https://github.com/conundrumer/spectral-decay written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/conundrumer/spectral-decay already has a lockfile, it will not be regenerated
[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]     Updating git repository `https://github.com/wrl/baseplug`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded random-fast-rng v0.1.1
[INFO] [stderr]   Downloaded transpose v0.2.0
[INFO] [stderr]   Downloaded vst v0.2.1
[INFO] [stderr]   Downloaded realfft v0.4.0
[INFO] [stderr]   Downloaded primal-check v0.3.1
[INFO] [stderr]   Downloaded syn v1.0.58
[INFO] [stderr]   Downloaded random-trait v0.1.1
[INFO] [stderr]   Downloaded rustfft v5.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] b25603721ead6473c5246f4be114364a10abc24c59d20a056cb001ba789aab0d
[INFO] running `Command { std: "docker" "start" "-a" "b25603721ead6473c5246f4be114364a10abc24c59d20a056cb001ba789aab0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b25603721ead6473c5246f4be114364a10abc24c59d20a056cb001ba789aab0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b25603721ead6473c5246f4be114364a10abc24c59d20a056cb001ba789aab0d", kill_on_drop: false }`
[INFO] [stdout] b25603721ead6473c5246f4be114364a10abc24c59d20a056cb001ba789aab0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] c3559388f3d196362844a07b9bdd76ed964379611887c6a6dea495fb66082839
[INFO] running `Command { std: "docker" "start" "-a" "c3559388f3d196362844a07b9bdd76ed964379611887c6a6dea495fb66082839", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling random-trait v0.1.1
[INFO] [stderr]     Checking strength_reduce v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking random-fast-rng v0.1.1
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking transpose v0.2.0
[INFO] [stderr]     Checking primal-check v0.3.1
[INFO] [stderr]     Checking rustfft v5.0.0
[INFO] [stderr]     Checking vst v0.2.1
[INFO] [stderr]    Compiling baseplug-derive v0.1.0 (https://github.com/wrl/baseplug?branch=trunk#9cb5cc89)
[INFO] [stderr]     Checking realfft v0.4.0
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]     Checking baseplug v0.1.0 (https://github.com/wrl/baseplug?branch=trunk#9cb5cc89)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/baseplug-941e692cfa0aefee/9cb5cc8/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_associated_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/baseplug-941e692cfa0aefee/9cb5cc8/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `baseplug` due to 3 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c3559388f3d196362844a07b9bdd76ed964379611887c6a6dea495fb66082839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3559388f3d196362844a07b9bdd76ed964379611887c6a6dea495fb66082839", kill_on_drop: false }`
[INFO] [stdout] c3559388f3d196362844a07b9bdd76ed964379611887c6a6dea495fb66082839