[INFO] fetching crate libcoinche 0.2.0...
[INFO] documenting libcoinche-0.2.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate libcoinche 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate libcoinche 0.2.0 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libcoinche 0.2.0
[INFO] finished tweaking crates.io crate libcoinche 0.2.0
[INFO] tweaked toml for crates.io crate libcoinche 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "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] cc9e23664bdecc3adea76c1d72e8b1fc048366377f79baa0c3887af41bd4dd13
[INFO] running `Command { std: "docker" "start" "-a" "cc9e23664bdecc3adea76c1d72e8b1fc048366377f79baa0c3887af41bd4dd13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc9e23664bdecc3adea76c1d72e8b1fc048366377f79baa0c3887af41bd4dd13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc9e23664bdecc3adea76c1d72e8b1fc048366377f79baa0c3887af41bd4dd13", kill_on_drop: false }`
[INFO] [stdout] cc9e23664bdecc3adea76c1d72e8b1fc048366377f79baa0c3887af41bd4dd13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac9284c8a286e511654e1e30488ebf552606ceac8243d6ecf7a2f5f0b9d12a64
[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" "ac9284c8a286e511654e1e30488ebf552606ceac8243d6ecf7a2f5f0b9d12a64", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]  Documenting libcoinche v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/game.rs:225:44
[INFO] [stdout]     |
[INFO] [stdout] 225 |         return Err(PlayError::CardMissing);;
[INFO] [stdout]     |                                            ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/game.rs:251:51
[INFO] [stdout]     |
[INFO] [stdout] 251 |             return Err(PlayError::NonRaisedTrump);;
[INFO] [stdout]     |                                                   ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/trick.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         (player == self.first.prev())
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.71s
[INFO] running `Command { std: "docker" "inspect" "ac9284c8a286e511654e1e30488ebf552606ceac8243d6ecf7a2f5f0b9d12a64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac9284c8a286e511654e1e30488ebf552606ceac8243d6ecf7a2f5f0b9d12a64", kill_on_drop: false }`
[INFO] [stdout] ac9284c8a286e511654e1e30488ebf552606ceac8243d6ecf7a2f5f0b9d12a64