[INFO] cloning repository https://github.com/Septa-Seven/game-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Septa-Seven/game-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSepta-Seven%2Fgame-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSepta-Seven%2Fgame-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86aa0f41f934a901dbd8bd8fb374bce82120b6d1
[INFO] documenting Septa-Seven/game-server against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSepta-Seven%2Fgame-server" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Septa-Seven/game-server on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Septa-Seven/game-server
[INFO] finished tweaking git repo https://github.com/Septa-Seven/game-server
[INFO] tweaked toml for git repo https://github.com/Septa-Seven/game-server written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Septa-Seven/game-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tungstenite v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] dfcffa56e9db7890d6ea98eced26dd24ab2895f0a2d454bab3448129acca5f33
[INFO] running `Command { std: "docker" "start" "-a" "dfcffa56e9db7890d6ea98eced26dd24ab2895f0a2d454bab3448129acca5f33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfcffa56e9db7890d6ea98eced26dd24ab2895f0a2d454bab3448129acca5f33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfcffa56e9db7890d6ea98eced26dd24ab2895f0a2d454bab3448129acca5f33", kill_on_drop: false }`
[INFO] [stdout] dfcffa56e9db7890d6ea98eced26dd24ab2895f0a2d454bab3448129acca5f33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecf8b79414be7120d7f313b2d848a25a1554c0b098204f892a0cab24dd80e7cb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ecf8b79414be7120d7f313b2d848a25a1554c0b098204f892a0cab24dd80e7cb", kill_on_drop: false }`
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking native-tls v0.2.7
[INFO] [stderr]     Checking sha-1 v0.9.4
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking tungstenite v0.13.0
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]  Documenting septa-gameserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[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 `septa-gameserver`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name septa_gameserver src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern mio=/opt/rustwide/target/debug/deps/libmio-276774fcb580d7ce.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-968737d009048a32.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-553a1614dbb19b69.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-7fdf19cd279198bf.rmeta --extern tungstenite=/opt/rustwide/target/debug/deps/libtungstenite-6e8d716d0ed47d7e.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ecf8b79414be7120d7f313b2d848a25a1554c0b098204f892a0cab24dd80e7cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecf8b79414be7120d7f313b2d848a25a1554c0b098204f892a0cab24dd80e7cb", kill_on_drop: false }`
[INFO] [stdout] ecf8b79414be7120d7f313b2d848a25a1554c0b098204f892a0cab24dd80e7cb
