[INFO] cloning repository https://github.com/iovxw/babel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iovxw/babel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiovxw%2Fbabel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiovxw%2Fbabel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d01d16153443656cfc54338c07c738aca881a401
[INFO] documenting iovxw/babel against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiovxw%2Fbabel" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iovxw/babel 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 git repo https://github.com/iovxw/babel
[INFO] finished tweaking git repo https://github.com/iovxw/babel
[INFO] tweaked toml for git repo https://github.com/iovxw/babel written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/iovxw/babel already has a lockfile, it will not be regenerated
[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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] b4ec9af1cf369f1e77e28d77a5bb34be9be8a82ff45270e940cbd26e0f8b6ed6
[INFO] running `Command { std: "docker" "start" "-a" "b4ec9af1cf369f1e77e28d77a5bb34be9be8a82ff45270e940cbd26e0f8b6ed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4ec9af1cf369f1e77e28d77a5bb34be9be8a82ff45270e940cbd26e0f8b6ed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4ec9af1cf369f1e77e28d77a5bb34be9be8a82ff45270e940cbd26e0f8b6ed6", kill_on_drop: false }`
[INFO] [stdout] b4ec9af1cf369f1e77e28d77a5bb34be9be8a82ff45270e940cbd26e0f8b6ed6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] f7a0d6e0c5c70c135d5b8ac6811b4a97a0e2570f22e6feec38a09bd4e05f441a
[INFO] running `Command { std: "docker" "start" "-a" "f7a0d6e0c5c70c135d5b8ac6811b4a97a0e2570f22e6feec38a09bd4e05f441a", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]     Checking futures v0.1.24
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking lazycell v1.1.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling serde v1.0.78
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.11
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking utf-8 v0.7.4
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.2
[INFO] [stderr]     Checking indexmap v1.0.1
[INFO] [stderr]     Checking string v0.1.1
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking ego-tree v0.5.0
[INFO] [stderr]     Checking termcolor v1.0.3
[INFO] [stderr]     Checking htmlescape v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking encoding_rs v0.8.6
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking base64 v0.9.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[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/pin-utils-0.1.0-alpha.2/src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pin)]
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pin-utils` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f7a0d6e0c5c70c135d5b8ac6811b4a97a0e2570f22e6feec38a09bd4e05f441a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7a0d6e0c5c70c135d5b8ac6811b4a97a0e2570f22e6feec38a09bd4e05f441a", kill_on_drop: false }`
[INFO] [stdout] f7a0d6e0c5c70c135d5b8ac6811b4a97a0e2570f22e6feec38a09bd4e05f441a