[INFO] cloning repository https://github.com/j5ik2o/from-oop-to-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j5ik2o/from-oop-to-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj5ik2o%2Ffrom-oop-to-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj5ik2o%2Ffrom-oop-to-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c331876de5abe7e91d426a4184f720ab150b083b
[INFO] documenting j5ik2o/from-oop-to-rust 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%2Fj5ik2o%2Ffrom-oop-to-rust" "/workspace/builds/worker-33/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-33/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/j5ik2o/from-oop-to-rust 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] removed /workspace/builds/worker-33/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/j5ik2o/from-oop-to-rust
[INFO] finished tweaking git repo https://github.com/j5ik2o/from-oop-to-rust
[INFO] tweaked toml for git repo https://github.com/j5ik2o/from-oop-to-rust written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] crate git repo https://github.com/j5ik2o/from-oop-to-rust 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-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] eff984c1d75a26c29717cce330a3d5c0ecd5d3a7ebacfe32bcc9a4dff9a20c02
[INFO] running `Command { std: "docker" "start" "-a" "eff984c1d75a26c29717cce330a3d5c0ecd5d3a7ebacfe32bcc9a4dff9a20c02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eff984c1d75a26c29717cce330a3d5c0ecd5d3a7ebacfe32bcc9a4dff9a20c02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eff984c1d75a26c29717cce330a3d5c0ecd5d3a7ebacfe32bcc9a4dff9a20c02", kill_on_drop: false }`
[INFO] [stdout] eff984c1d75a26c29717cce330a3d5c0ecd5d3a7ebacfe32bcc9a4dff9a20c02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 2f7dd1fba75db8a6da2c822a427910618843e2f5e8327b5f32fbc210c80dde37
[INFO] running `Command { std: "docker" "start" "-a" "2f7dd1fba75db8a6da2c822a427910618843e2f5e8327b5f32fbc210c80dde37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]  Documenting design-patterns-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(generic_associated_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `design-patterns-in-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name design_patterns_in_rust src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=f378e908fa15c1b4 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-0657bc08aa8032ee.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-313d899bcf59c9b4.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-6a77d5dadf64d1bc.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-a955492495f076af.rmeta --extern timer=/opt/rustwide/target/debug/deps/libtimer-08ff7ecebc2c2a84.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2f7dd1fba75db8a6da2c822a427910618843e2f5e8327b5f32fbc210c80dde37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f7dd1fba75db8a6da2c822a427910618843e2f5e8327b5f32fbc210c80dde37", kill_on_drop: false }`
[INFO] [stdout] 2f7dd1fba75db8a6da2c822a427910618843e2f5e8327b5f32fbc210c80dde37