[INFO] cloning repository https://github.com/Magnap/game-trees-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Magnap/game-trees-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMagnap%2Fgame-trees-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMagnap%2Fgame-trees-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 141a0f2d86fef40cf82dafed7b86f340ec5bec95
[INFO] documenting Magnap/game-trees-rs 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%2FMagnap%2Fgame-trees-rs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Magnap/game-trees-rs 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/Magnap/game-trees-rs
[INFO] finished tweaking git repo https://github.com/Magnap/game-trees-rs
[INFO] tweaked toml for git repo https://github.com/Magnap/game-trees-rs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Magnap/game-trees-rs 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] fbcb11811577a2a97435e0136db110025e571a727973bb2247f223b3fa3f4589
[INFO] running `Command { std: "docker" "start" "-a" "fbcb11811577a2a97435e0136db110025e571a727973bb2247f223b3fa3f4589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbcb11811577a2a97435e0136db110025e571a727973bb2247f223b3fa3f4589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbcb11811577a2a97435e0136db110025e571a727973bb2247f223b3fa3f4589", kill_on_drop: false }`
[INFO] [stdout] fbcb11811577a2a97435e0136db110025e571a727973bb2247f223b3fa3f4589
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f04cdc76d12e548f7e5cb29cdf67ad7ff1d413325283f490c5cc9a51c5844176
[INFO] running `Command { std: "docker" "start" "-a" "f04cdc76d12e548f7e5cb29cdf67ad7ff1d413325283f490c5cc9a51c5844176", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.29
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking fnv v1.0.5
[INFO] [stderr]     Checking itertools v0.6.1
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]  Documenting game-trees v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `.`, `?`, `]`, or an operator, found `:`
[INFO] [stdout]    --> src/game/backgammon.rs:111:61
[INFO] [stdout]     |
[INFO] [stdout] 111 |                         let from = &mut self.counts[l.into(): usize];
[INFO] [stdout]     |                                                             ^ expected one of `.`, `?`, `]`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `:`
[INFO] [stdout]    --> src/game/backgammon.rs:119:59
[INFO] [stdout]     |
[INFO] [stdout] 119 |                         (if l == Bar { 0 } else { l.into(): usize }) as i8 + n as i8
[INFO] [stdout]     |                                                           ^ expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `:`
[INFO] [stdout]    --> src/game/backgammon.rs:121:60
[INFO] [stdout]     |
[INFO] [stdout] 121 |                         (if l == Bar { 25 } else { l.into(): usize }) as i8 - n as i8
[INFO] [stdout]     |                                                            ^ expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `?`, `]`, or an operator, found `:`
[INFO] [stdout]    --> src/game/backgammon.rs:141:68
[INFO] [stdout]     |
[INFO] [stdout] 141 |                         let mut to = &mut self.counts[to_pos.into(): usize];
[INFO] [stdout]     |                                                                    ^ expected one of `.`, `?`, `]`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `?`, `]`, or an operator, found `:`
[INFO] [stdout]    --> src/game/backgammon.rs:156:66
[INFO] [stdout]     |
[INFO] [stdout] 156 |                         let mut bar = &mut self.counts[Bar.into(): usize];
[INFO] [stdout]     |                                                                  ^ expected one of `.`, `?`, `]`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `?`, `]`, or an operator, found `:`
[INFO] [stdout]    --> src/game/backgammon.rs:289:46
[INFO] [stdout]     |
[INFO] [stdout] 289 |         let from_count = self.counts[l.into(): usize];
[INFO] [stdout]     |                                              ^ expected one of `.`, `?`, `]`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `?`, `]`, or an operator, found `:`
[INFO] [stdout]    --> src/game/backgammon.rs:321:50
[INFO] [stdout]     |
[INFO] [stdout] 321 |                 let counts = self.counts[n.into(): usize];
[INFO] [stdout]     |                                                  ^ expected one of `.`, `?`, `]`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `?`, `]`, or an operator, found `:`
[INFO] [stdout]    --> src/game/backgammon.rs:328:42
[INFO] [stdout]     |
[INFO] [stdout] 328 |         let counts = self.counts[l.into(): usize];
[INFO] [stdout]     |                                          ^ expected one of `.`, `?`, `]`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `?`, `]`, or an operator, found `:`
[INFO] [stdout]    --> src/game/backgammon.rs:333:42
[INFO] [stdout]     |
[INFO] [stdout] 333 |         let counts = self.counts[l.into(): usize];
[INFO] [stdout]     |                                          ^ expected one of `.`, `?`, `]`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(type_ascription)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 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 `game-trees`
[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 --crate-type lib --crate-name game_trees src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=bb41af61cbd09601 -L dependency=/opt/rustwide/target/debug/deps --extern fnv=/opt/rustwide/target/debug/deps/libfnv-946cf01f7a5cc3cc.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-2de88b09a3217202.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-bd2ad2a6de14b5a8.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f04cdc76d12e548f7e5cb29cdf67ad7ff1d413325283f490c5cc9a51c5844176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f04cdc76d12e548f7e5cb29cdf67ad7ff1d413325283f490c5cc9a51c5844176", kill_on_drop: false }`
[INFO] [stdout] f04cdc76d12e548f7e5cb29cdf67ad7ff1d413325283f490c5cc9a51c5844176
