[INFO] fetching crate hotpatch 0.3.0...
[INFO] documenting hotpatch-0.3.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate hotpatch 0.3.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate hotpatch 0.3.0 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 hotpatch 0.3.0
[INFO] finished tweaking crates.io crate hotpatch 0.3.0
[INFO] tweaked toml for crates.io crate hotpatch 0.3.0 written to /workspace/builds/worker-13/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0bd7b0b7918ad408cc7dba727096eda8381ce0ff9b11e4b4439db67ffc060ac3
[INFO] running `Command { std: "docker" "start" "-a" "0bd7b0b7918ad408cc7dba727096eda8381ce0ff9b11e4b4439db67ffc060ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bd7b0b7918ad408cc7dba727096eda8381ce0ff9b11e4b4439db67ffc060ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bd7b0b7918ad408cc7dba727096eda8381ce0ff9b11e4b4439db67ffc060ac3", kill_on_drop: false }`
[INFO] [stdout] 0bd7b0b7918ad408cc7dba727096eda8381ce0ff9b11e4b4439db67ffc060ac3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 95de34bec6f3471dcfe8c49ef7c07dc737a4c10efd63610621b4220ac3284535
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "95de34bec6f3471dcfe8c49ef7c07dc737a4c10efd63610621b4220ac3284535", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking variadic_generics v0.1.2
[INFO] [stderr]     Checking simple-error v0.2.3
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling hotpatch_macros v0.3.0
[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/hotpatch_macros-0.3.0/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[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 `hotpatch_macros` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "95de34bec6f3471dcfe8c49ef7c07dc737a4c10efd63610621b4220ac3284535", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95de34bec6f3471dcfe8c49ef7c07dc737a4c10efd63610621b4220ac3284535", kill_on_drop: false }`
[INFO] [stdout] 95de34bec6f3471dcfe8c49ef7c07dc737a4c10efd63610621b4220ac3284535