[INFO] cloning repository https://github.com/pzmarzly/x11-input-mirror
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pzmarzly/x11-input-mirror" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpzmarzly%2Fx11-input-mirror", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpzmarzly%2Fx11-input-mirror'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 261dac624f093ce1c0fed9915a68a7f6d3f8f65e
[INFO] documenting pzmarzly/x11-input-mirror 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%2Fpzmarzly%2Fx11-input-mirror" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pzmarzly/x11-input-mirror 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/pzmarzly/x11-input-mirror
[INFO] finished tweaking git repo https://github.com/pzmarzly/x11-input-mirror
[INFO] tweaked toml for git repo https://github.com/pzmarzly/x11-input-mirror written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/pzmarzly/x11-input-mirror 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 1bc8130e6545b7906700c42e241a3a361b026c3b01c15bbdebec8cd300cbc0e1
[INFO] running `Command { std: "docker" "start" "-a" "1bc8130e6545b7906700c42e241a3a361b026c3b01c15bbdebec8cd300cbc0e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bc8130e6545b7906700c42e241a3a361b026c3b01c15bbdebec8cd300cbc0e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bc8130e6545b7906700c42e241a3a361b026c3b01c15bbdebec8cd300cbc0e1", kill_on_drop: false }`
[INFO] [stdout] 1bc8130e6545b7906700c42e241a3a361b026c3b01c15bbdebec8cd300cbc0e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 32eb7f9f52f55ee493d2120f246b3e93004d6958bed7129152d64a869432ec46
[INFO] running `Command { std: "docker" "start" "-a" "32eb7f9f52f55ee493d2120f246b3e93004d6958bed7129152d64a869432ec46", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling serde v1.0.86
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking keystream v1.0.0
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking block-padding v0.1.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking chacha v0.3.0
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking block-buffer v0.7.2
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking sha3 v0.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.86
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking x11-input-mirror v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting 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=49bffefe9d8ae8d7 -L dependency=/opt/rustwide/target/debug/deps --extern chacha=/opt/rustwide/target/debug/deps/libchacha-3b3edd7b4b262fae.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-03887edd47c8a8d4.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-b893712481dc79ae.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-e20082c2d2a74d39.so --extern sha3=/opt/rustwide/target/debug/deps/libsha3-6f2881a6a0d71faf.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-17b502f165ca1c0d.rmeta --cap-lints=warn --crate-version 0.3.6` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "32eb7f9f52f55ee493d2120f246b3e93004d6958bed7129152d64a869432ec46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32eb7f9f52f55ee493d2120f246b3e93004d6958bed7129152d64a869432ec46", kill_on_drop: false }`
[INFO] [stdout] 32eb7f9f52f55ee493d2120f246b3e93004d6958bed7129152d64a869432ec46