[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] cfaa736a6ca81b09d4c90e6569e27a7a5f3a9e34
[INFO] checking Oliver-Piorun/koala_chess against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOliver-Piorun%2Fkoala_chess" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Oliver-Piorun/koala_chess on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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-8/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: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d80bd169915aa481447fca306fed7cb058fd2c65f826640b2b180894ef939125
[INFO] running `Command { std: "docker" "start" "-a" "d80bd169915aa481447fca306fed7cb058fd2c65f826640b2b180894ef939125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d80bd169915aa481447fca306fed7cb058fd2c65f826640b2b180894ef939125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d80bd169915aa481447fca306fed7cb058fd2c65f826640b2b180894ef939125", kill_on_drop: false }`
[INFO] [stdout] d80bd169915aa481447fca306fed7cb058fd2c65f826640b2b180894ef939125
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c6038bad2595f8923e4e55a29f25bc011e2580767e624f3eedaf1978765c6b8
[INFO] running `Command { std: "docker" "start" "-a" "8c6038bad2595f8923e4e55a29f25bc011e2580767e624f3eedaf1978765c6b8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling gl v0.1.0 (/opt/rustwide/workdir/gl)
[INFO] [stderr]    Compiling glx v0.1.0 (/opt/rustwide/workdir/glx)
[INFO] [stderr]    Compiling wgl v0.1.0 (/opt/rustwide/workdir/wgl)
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking logger v0.1.0 (/opt/rustwide/workdir/logger)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> logger/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(once_cell)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> logger/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(once_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` 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: build failed
[INFO] running `Command { std: "docker" "inspect" "8c6038bad2595f8923e4e55a29f25bc011e2580767e624f3eedaf1978765c6b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c6038bad2595f8923e4e55a29f25bc011e2580767e624f3eedaf1978765c6b8", kill_on_drop: false }`
[INFO] [stdout] 8c6038bad2595f8923e4e55a29f25bc011e2580767e624f3eedaf1978765c6b8
