[INFO] fetching crate qecs-core 0.0.17...
[INFO] documenting qecs-core-0.0.17 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate qecs-core 0.0.17 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate qecs-core 0.0.17 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qecs-core 0.0.17
[INFO] finished tweaking crates.io crate qecs-core 0.0.17
[INFO] tweaked toml for crates.io crate qecs-core 0.0.17 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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" "+beta-2022-05-20" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a15db27ada5f559ead475e1973a30d0d0d94b90735329d6c27c2915f827a618
[INFO] running `Command { std: "docker" "start" "-a" "3a15db27ada5f559ead475e1973a30d0d0d94b90735329d6c27c2915f827a618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a15db27ada5f559ead475e1973a30d0d0d94b90735329d6c27c2915f827a618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a15db27ada5f559ead475e1973a30d0d0d94b90735329d6c27c2915f827a618", kill_on_drop: false }`
[INFO] [stdout] 3a15db27ada5f559ead475e1973a30d0d0d94b90735329d6c27c2915f827a618
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5527f5dfa53508d03b31bd2df27f316787521cdf3e2253104767ba3f0229ffce
[INFO] running `Command { std: "docker" "start" "-a" "5527f5dfa53508d03b31bd2df27f316787521cdf3e2253104767ba3f0229ffce", kill_on_drop: false }`
[INFO] [stderr]     Checking downcast v0.2.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/downcast-0.2.3/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(get_type_id)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_type_id` found for reference `&T` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/downcast-0.2.3/src/lib.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     obj.get_type_id()
[INFO] [stdout]    |         ^^^^^^^^^^^ help: there is an associated function with a similar name: `type_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `downcast` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "5527f5dfa53508d03b31bd2df27f316787521cdf3e2253104767ba3f0229ffce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5527f5dfa53508d03b31bd2df27f316787521cdf3e2253104767ba3f0229ffce", kill_on_drop: false }`
[INFO] [stdout] 5527f5dfa53508d03b31bd2df27f316787521cdf3e2253104767ba3f0229ffce