[INFO] cloning repository https://github.com/lgo/rails
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lgo/rails" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flgo%2Frails", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flgo%2Frails'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bfc3a960f22cf6af7e92562886fee49c5fd64721
[INFO] documenting lgo/rails 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%2Flgo%2Frails" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lgo/rails 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-7/source/.cargo/config
[INFO] started tweaking git repo https://github.com/lgo/rails
[INFO] finished tweaking git repo https://github.com/lgo/rails
[INFO] tweaked toml for git repo https://github.com/lgo/rails written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/lgo/rails 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] warning: unused manifest key: target.rpi2.features
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5b8fc68e381561e82817840751066fffbe882561cf9d2dba7fb5f6de0822a60a
[INFO] running `Command { std: "docker" "start" "-a" "5b8fc68e381561e82817840751066fffbe882561cf9d2dba7fb5f6de0822a60a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b8fc68e381561e82817840751066fffbe882561cf9d2dba7fb5f6de0822a60a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b8fc68e381561e82817840751066fffbe882561cf9d2dba7fb5f6de0822a60a", kill_on_drop: false }`
[INFO] [stdout] 5b8fc68e381561e82817840751066fffbe882561cf9d2dba7fb5f6de0822a60a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4a31f22a2e2e3ab017d254c4dc7fabf8fcdf6d745a8deec790f3935e761ede13
[INFO] running `Command { std: "docker" "start" "-a" "4a31f22a2e2e3ab017d254c4dc7fabf8fcdf6d745a8deec790f3935e761ede13", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.rpi2.features
[INFO] [stderr]  Documenting rails v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lang_items)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]  --> src/mach/rpi2/uart.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const GPPUD: u32 = (GPIO_BASE + 0x94);
[INFO] [stdout]   |                        ^                ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 8 - pub const GPPUD: u32 = (GPIO_BASE + 0x94);
[INFO] [stdout] 8 + pub const GPPUD: u32 = GPIO_BASE + 0x94;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:11:28
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub const GPPUDCLK0: u32 = (GPIO_BASE + 0x98);
[INFO] [stdout]    |                            ^                ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 - pub const GPPUDCLK0: u32 = (GPIO_BASE + 0x98);
[INFO] [stdout] 11 + pub const GPPUDCLK0: u32 = GPIO_BASE + 0x98;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:18:27
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub const UART0_DR: u32 = (UART0_BASE + 0x00);
[INFO] [stdout]    |                           ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 18 - pub const UART0_DR: u32 = (UART0_BASE + 0x00);
[INFO] [stdout] 18 + pub const UART0_DR: u32 = UART0_BASE + 0x00;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:20:31
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub const UART0_RSRECR: u32 = (UART0_BASE + 0x04);
[INFO] [stdout]    |                               ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 20 - pub const UART0_RSRECR: u32 = (UART0_BASE + 0x04);
[INFO] [stdout] 20 + pub const UART0_RSRECR: u32 = UART0_BASE + 0x04;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:22:27
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub const UART0_FR: u32 = (UART0_BASE + 0x18);
[INFO] [stdout]    |                           ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 22 - pub const UART0_FR: u32 = (UART0_BASE + 0x18);
[INFO] [stdout] 22 + pub const UART0_FR: u32 = UART0_BASE + 0x18;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:24:29
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub const UART0_ILPR: u32 = (UART0_BASE + 0x20);
[INFO] [stdout]    |                             ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 24 - pub const UART0_ILPR: u32 = (UART0_BASE + 0x20);
[INFO] [stdout] 24 + pub const UART0_ILPR: u32 = UART0_BASE + 0x20;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:25:29
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub const UART0_IBRD: u32 = (UART0_BASE + 0x24);
[INFO] [stdout]    |                             ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 - pub const UART0_IBRD: u32 = (UART0_BASE + 0x24);
[INFO] [stdout] 25 + pub const UART0_IBRD: u32 = UART0_BASE + 0x24;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub const UART0_FBRD: u32 = (UART0_BASE + 0x28);
[INFO] [stdout]    |                             ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 26 - pub const UART0_FBRD: u32 = (UART0_BASE + 0x28);
[INFO] [stdout] 26 + pub const UART0_FBRD: u32 = UART0_BASE + 0x28;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:27:29
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub const UART0_LCRH: u32 = (UART0_BASE + 0x2C);
[INFO] [stdout]    |                             ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 27 - pub const UART0_LCRH: u32 = (UART0_BASE + 0x2C);
[INFO] [stdout] 27 + pub const UART0_LCRH: u32 = UART0_BASE + 0x2C;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub const UART0_CR: u32 = (UART0_BASE + 0x30);
[INFO] [stdout]    |                           ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 - pub const UART0_CR: u32 = (UART0_BASE + 0x30);
[INFO] [stdout] 28 + pub const UART0_CR: u32 = UART0_BASE + 0x30;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:30:29
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub const UART0_IFLS: u32 = (UART0_BASE + 0x34);
[INFO] [stdout]    |                             ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 30 - pub const UART0_IFLS: u32 = (UART0_BASE + 0x34);
[INFO] [stdout] 30 + pub const UART0_IFLS: u32 = UART0_BASE + 0x34;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:31:29
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub const UART0_IMSC: u32 = (UART0_BASE + 0x38);
[INFO] [stdout]    |                             ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 31 - pub const UART0_IMSC: u32 = (UART0_BASE + 0x38);
[INFO] [stdout] 31 + pub const UART0_IMSC: u32 = UART0_BASE + 0x38;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:33:28
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub const UART0_RIS: u32 = (UART0_BASE + 0x3C);
[INFO] [stdout]    |                            ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 33 - pub const UART0_RIS: u32 = (UART0_BASE + 0x3C);
[INFO] [stdout] 33 + pub const UART0_RIS: u32 = UART0_BASE + 0x3C;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub const UART0_MIS: u32 = (UART0_BASE + 0x40);
[INFO] [stdout]    |                            ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 - pub const UART0_MIS: u32 = (UART0_BASE + 0x40);
[INFO] [stdout] 35 + pub const UART0_MIS: u32 = UART0_BASE + 0x40;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:36:28
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub const UART0_ICR: u32 = (UART0_BASE + 0x44);
[INFO] [stdout]    |                            ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 - pub const UART0_ICR: u32 = (UART0_BASE + 0x44);
[INFO] [stdout] 36 + pub const UART0_ICR: u32 = UART0_BASE + 0x44;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:38:30
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub const UART0_DMACR: u32 = (UART0_BASE + 0x48);
[INFO] [stdout]    |                              ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 38 - pub const UART0_DMACR: u32 = (UART0_BASE + 0x48);
[INFO] [stdout] 38 + pub const UART0_DMACR: u32 = UART0_BASE + 0x48;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:40:29
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub const UART0_ITCR: u32 = (UART0_BASE + 0x80);
[INFO] [stdout]    |                             ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 40 - pub const UART0_ITCR: u32 = (UART0_BASE + 0x80);
[INFO] [stdout] 40 + pub const UART0_ITCR: u32 = UART0_BASE + 0x80;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:42:29
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub const UART0_ITIP: u32 = (UART0_BASE + 0x84);
[INFO] [stdout]    |                             ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 42 - pub const UART0_ITIP: u32 = (UART0_BASE + 0x84);
[INFO] [stdout] 42 + pub const UART0_ITIP: u32 = UART0_BASE + 0x84;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:44:29
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub const UART0_ITOP: u32 = (UART0_BASE + 0x88);
[INFO] [stdout]    |                             ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 44 - pub const UART0_ITOP: u32 = (UART0_BASE + 0x88);
[INFO] [stdout] 44 + pub const UART0_ITOP: u32 = UART0_BASE + 0x88;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/mach/rpi2/uart.rs:46:28
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub const UART0_TDR: u32 = (UART0_BASE + 0x8C);
[INFO] [stdout]    |                            ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 46 - pub const UART0_TDR: u32 = (UART0_BASE + 0x8C);
[INFO] [stdout] 46 + pub const UART0_TDR: u32 = UART0_BASE + 0x8C;
[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; 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rails`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name rails src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=74b9803ca14685c8 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "4a31f22a2e2e3ab017d254c4dc7fabf8fcdf6d745a8deec790f3935e761ede13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a31f22a2e2e3ab017d254c4dc7fabf8fcdf6d745a8deec790f3935e761ede13", kill_on_drop: false }`
[INFO] [stdout] 4a31f22a2e2e3ab017d254c4dc7fabf8fcdf6d745a8deec790f3935e761ede13