[INFO] fetching crate kailua_check 1.1.0...
[INFO] documenting kailua_check-1.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate kailua_check 1.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate kailua_check 1.1.0 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 kailua_check 1.1.0
[INFO] removed 0 missing tests
[INFO] removed path dependency kailua_diag from crates.io crate kailua_check 1.1.0
[INFO] removed path dependency kailua_env from crates.io crate kailua_check 1.1.0
[INFO] removed path dependency kailua_syntax from crates.io crate kailua_check 1.1.0
[INFO] removed path dependency kailua_types from crates.io crate kailua_check 1.1.0
[INFO] removed path dependency kailua_test from crates.io crate kailua_check 1.1.0
[INFO] finished tweaking crates.io crate kailua_check 1.1.0
[INFO] tweaked toml for crates.io crate kailua_check 1.1.0 written to /workspace/builds/worker-12/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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] e969d4ffcfd31c21de1c121f10805f4a4b2e3c162cd3a67da80a920ce6894006
[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" "e969d4ffcfd31c21de1c121f10805f4a4b2e3c162cd3a67da80a920ce6894006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e969d4ffcfd31c21de1c121f10805f4a4b2e3c162cd3a67da80a920ce6894006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e969d4ffcfd31c21de1c121f10805f4a4b2e3c162cd3a67da80a920ce6894006", kill_on_drop: false }`
[INFO] [stdout] e969d4ffcfd31c21de1c121f10805f4a4b2e3c162cd3a67da80a920ce6894006
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 96744987a3193de362f64182507689ffb40e09f7873d07562054763560c05610
[INFO] running `Command { std: "docker" "start" "-a" "96744987a3193de362f64182507689ffb40e09f7873d07562054763560c05610", kill_on_drop: false }`
[INFO] [stderr]     Checking kailua_env v1.0.4
[INFO] [stderr]     Checking parse-generics-shim v0.1.1
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking vec_map v0.7.0
[INFO] [stderr]     Checking take_mut v0.1.3
[INFO] [stderr]     Checking atomic v0.3.4
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking kailua_diag v1.0.4
[INFO] [stderr]     Checking kailua_syntax v1.1.0
[INFO] [stderr]     Checking kailua_types v1.1.0
[INFO] [stderr]  Documenting kailua_check v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/class_system/gideros.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 | /         (lgen >= rgen &&
[INFO] [stdout] 296 | |          Ancestors::new(&classes, lhs).nth((lgen - rgen) as usize).map(|e| e.0) == Some(rhs))
[INFO] [stdout]     | |_____________________________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 295 |         lgen >= rgen &&
[INFO] [stdout] 296 |          Ancestors::new(&classes, lhs).nth((lgen - rgen) as usize).map(|e| e.0) == Some(rhs)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.46s
[INFO] running `Command { std: "docker" "inspect" "96744987a3193de362f64182507689ffb40e09f7873d07562054763560c05610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96744987a3193de362f64182507689ffb40e09f7873d07562054763560c05610", kill_on_drop: false }`
[INFO] [stdout] 96744987a3193de362f64182507689ffb40e09f7873d07562054763560c05610