[INFO] fetching crate x11-input-mirror 0.3.6...
[INFO] documenting x11-input-mirror-0.3.6 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate x11-input-mirror 0.3.6 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate x11-input-mirror 0.3.6 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 x11-input-mirror 0.3.6
[INFO] finished tweaking crates.io crate x11-input-mirror 0.3.6
[INFO] tweaked toml for crates.io crate x11-input-mirror 0.3.6 written to /workspace/builds/worker-12/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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] b8ed59b67f67e1b44cc1f926af4fbe8082f324cb117a9fe84da30e9d2cd8dca1
[INFO] running `Command { std: "docker" "start" "-a" "b8ed59b67f67e1b44cc1f926af4fbe8082f324cb117a9fe84da30e9d2cd8dca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8ed59b67f67e1b44cc1f926af4fbe8082f324cb117a9fe84da30e9d2cd8dca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8ed59b67f67e1b44cc1f926af4fbe8082f324cb117a9fe84da30e9d2cd8dca1", kill_on_drop: false }`
[INFO] [stdout] b8ed59b67f67e1b44cc1f926af4fbe8082f324cb117a9fe84da30e9d2cd8dca1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1d678f9e9f3a1eaa2d8a654aeadd430691c1ac2db5a4bc24e3d14538d351664e
[INFO] running `Command { std: "docker" "start" "-a" "1d678f9e9f3a1eaa2d8a654aeadd430691c1ac2db5a4bc24e3d14538d351664e", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking keccak v0.1.2
[INFO] [stderr]     Checking keystream v1.0.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking chacha v0.3.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]  Documenting x11-input-mirror v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking x11-input-mirror v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(panic_info_message)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(int_to_from_bytes)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `int_to_from_bytes` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(int_to_from_bytes)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(panic_info_message)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(int_to_from_bytes)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `x11-input-mirror` due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `x11-input-mirror`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name x11_input_mirror src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=d0f87a9cde293c16 -L dependency=/opt/rustwide/target/debug/deps --extern chacha=/opt/rustwide/target/debug/deps/libchacha-cb88415bd3829846.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-fcfcbf1582f190ee.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-dbdb529db862b224.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-864a219f4e4f97f4.so --extern sha3=/opt/rustwide/target/debug/deps/libsha3-7fc3dc11934e4bfd.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-2feca227ac6870f4.rmeta --cap-lints=warn --crate-version 0.3.6` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "1d678f9e9f3a1eaa2d8a654aeadd430691c1ac2db5a4bc24e3d14538d351664e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d678f9e9f3a1eaa2d8a654aeadd430691c1ac2db5a4bc24e3d14538d351664e", kill_on_drop: false }`
[INFO] [stdout] 1d678f9e9f3a1eaa2d8a654aeadd430691c1ac2db5a4bc24e3d14538d351664e