[INFO] cloning repository https://github.com/Oliver-Piorun/koala_chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Oliver-Piorun/koala_chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOliver-Piorun%2Fkoala_chess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOliver-Piorun%2Fkoala_chess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4c3828ba4290ccebabe73567ff14521cc62e767
[INFO] documenting Oliver-Piorun/koala_chess against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOliver-Piorun%2Fkoala_chess" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Oliver-Piorun/koala_chess on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Oliver-Piorun/koala_chess
[INFO] finished tweaking git repo https://github.com/Oliver-Piorun/koala_chess
[INFO] tweaked toml for git repo https://github.com/Oliver-Piorun/koala_chess written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Oliver-Piorun/koala_chess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce980aa7bfc632b83490b61a24dc57dd34e8cac6192a77fdcdb74a385a57091f
[INFO] running `Command { std: "docker" "start" "-a" "ce980aa7bfc632b83490b61a24dc57dd34e8cac6192a77fdcdb74a385a57091f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce980aa7bfc632b83490b61a24dc57dd34e8cac6192a77fdcdb74a385a57091f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce980aa7bfc632b83490b61a24dc57dd34e8cac6192a77fdcdb74a385a57091f", kill_on_drop: false }`
[INFO] [stdout] ce980aa7bfc632b83490b61a24dc57dd34e8cac6192a77fdcdb74a385a57091f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 625d8fcc6549e56dbb6081dde0aec2675d7f3b54b519f206441ca0a7b6afb77b
[INFO] running `Command { std: "docker" "start" "-a" "625d8fcc6549e56dbb6081dde0aec2675d7f3b54b519f206441ca0a7b6afb77b", kill_on_drop: false }`
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling xml-rs v0.8.19
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling time-macros v0.2.16
[INFO] [stderr]     Checking deranged v0.3.10
[INFO] [stderr]    Compiling x11 v2.21.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling glx v0.1.0 (/opt/rustwide/workdir/glx)
[INFO] [stderr]    Compiling gl v0.1.0 (/opt/rustwide/workdir/gl)
[INFO] [stderr]    Compiling wgl v0.1.0 (/opt/rustwide/workdir/wgl)
[INFO] [stderr]     Checking time v0.3.31
[INFO] [stderr]  Documenting wgl v0.1.0 (/opt/rustwide/workdir/wgl)
[INFO] [stderr]  Documenting glx v0.1.0 (/opt/rustwide/workdir/glx)
[INFO] [stderr]     Checking logger v0.1.0 (/opt/rustwide/workdir/logger)
[INFO] [stderr]  Documenting logger v0.1.0 (/opt/rustwide/workdir/logger)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> logger/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(lazy_cell)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> logger/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(lazy_cell)]
[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 `logger` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 document `logger`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name logger logger/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a9bd4497a6f8ab47 -L dependency=/opt/rustwide/target/debug/deps --extern time=/opt/rustwide/target/debug/deps/libtime-ac560cfd4a260c51.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "625d8fcc6549e56dbb6081dde0aec2675d7f3b54b519f206441ca0a7b6afb77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625d8fcc6549e56dbb6081dde0aec2675d7f3b54b519f206441ca0a7b6afb77b", kill_on_drop: false }`
[INFO] [stdout] 625d8fcc6549e56dbb6081dde0aec2675d7f3b54b519f206441ca0a7b6afb77b
