[INFO] cloning repository https://github.com/98devin/friday
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/98devin/friday" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F98devin%2Ffriday", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F98devin%2Ffriday'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86420da348119b43dd6770f08790881f0cd8697f
[INFO] documenting 98devin/friday against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F98devin%2Ffriday" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/98devin/friday 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 git repo https://github.com/98devin/friday
[INFO] finished tweaking git repo https://github.com/98devin/friday
[INFO] tweaked toml for git repo https://github.com/98devin/friday written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/98devin/friday already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust-argon2 v0.5.1
[INFO] [stderr]   Downloaded redox_users v0.3.1
[INFO] [stderr]   Downloaded constant_time_eq v0.1.4
[INFO] [stderr]   Downloaded blake2b_simd v0.5.9
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.6
[INFO] [stderr]   Downloaded syn v1.0.11
[INFO] [stderr]   Downloaded failure v0.1.6
[INFO] [stderr]   Downloaded docopt v1.1.0
[INFO] [stderr]   Downloaded derive_more v0.99.2
[INFO] [stderr]   Downloaded cc v1.0.47
[INFO] [stderr]   Downloaded sha2 v0.8.0
[INFO] [stderr]   Downloaded serde v1.0.103
[INFO] [stderr]   Downloaded bit-set v0.5.1
[INFO] [stderr]   Downloaded ascii-canvas v2.0.0
[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.3
[INFO] [stderr]   Downloaded bit-vec v0.5.1
[INFO] [stderr]   Downloaded bumpalo v2.6.0
[INFO] [stderr]   Downloaded itertools v0.8.2
[INFO] [stderr]   Downloaded serde_derive v1.0.103
[INFO] [stderr]   Downloaded diff v0.1.11
[INFO] [stderr]   Downloaded strsim v0.9.2
[INFO] [stderr]   Downloaded fixedbitset v0.1.9
[INFO] [stderr]   Downloaded petgraph v0.4.13
[INFO] [stderr]   Downloaded lalrpop v0.17.2
[INFO] [stderr]   Downloaded backtrace v0.3.40
[INFO] [stderr]   Downloaded synstructure v0.12.3
[INFO] [stderr]   Downloaded lalrpop-util v0.17.2
[INFO] [stderr]   Downloaded arrayref v0.3.5
[INFO] [stderr]   Downloaded proc-macro2 v1.0.6
[INFO] [stderr]   Downloaded ena v0.13.1
[INFO] [stderr]   Downloaded failure_derive v0.1.6
[INFO] [stderr]   Downloaded ordermap v0.3.5
[INFO] [stderr]   Downloaded backtrace-sys v0.1.32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 2fe1ff8f9a03ec45a9d439c0647e7b6b1ba62761b47a34d83eb78bf11afa1aa3
[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" "2fe1ff8f9a03ec45a9d439c0647e7b6b1ba62761b47a34d83eb78bf11afa1aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fe1ff8f9a03ec45a9d439c0647e7b6b1ba62761b47a34d83eb78bf11afa1aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fe1ff8f9a03ec45a9d439c0647e7b6b1ba62761b47a34d83eb78bf11afa1aa3", kill_on_drop: false }`
[INFO] [stdout] 2fe1ff8f9a03ec45a9d439c0647e7b6b1ba62761b47a34d83eb78bf11afa1aa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 20eb7bd864f4149d9f2e90fc1034015bf8136fcb73ee4a987df2fbd63e1a516d
[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" "20eb7bd864f4149d9f2e90fc1034015bf8136fcb73ee4a987df2fbd63e1a516d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]     Checking bumpalo v2.6.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]    Compiling friday v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting friday v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/friday-395b4580ceab12eb/out/ast/parser.rs:4161:5
[INFO] [stdout]      |
[INFO] [stdout] 4161 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/friday-395b4580ceab12eb/out/ast/parser.rs:4174:5
[INFO] [stdout]      |
[INFO] [stdout] 4174 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/friday-395b4580ceab12eb/out/ast/parser.rs:4187:5
[INFO] [stdout]      |
[INFO] [stdout] 4187 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/friday-395b4580ceab12eb/out/ast/parser.rs:4200:5
[INFO] [stdout]      |
[INFO] [stdout] 4200 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/friday-395b4580ceab12eb/out/ast/parser.rs:4213:5
[INFO] [stdout]      |
[INFO] [stdout] 4213 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/friday-395b4580ceab12eb/out/ast/parser.rs:4226:5
[INFO] [stdout]      |
[INFO] [stdout] 4226 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/friday-395b4580ceab12eb/out/ast/parser.rs:4278:5
[INFO] [stdout]      |
[INFO] [stdout] 4278 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/friday-395b4580ceab12eb/out/ast/parser.rs:4291:5
[INFO] [stdout]      |
[INFO] [stdout] 4291 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/friday-395b4580ceab12eb/out/ast/parser.rs:4644:5
[INFO] [stdout]      |
[INFO] [stdout] 4644 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/friday-395b4580ceab12eb/out/ast/parser.rs:5033:5
[INFO] [stdout]      |
[INFO] [stdout] 5033 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/friday-395b4580ceab12eb/out/ast/parser.rs:5174:5
[INFO] [stdout]      |
[INFO] [stdout] 5174 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/friday-395b4580ceab12eb/out/ast/parser.rs:5189:5
[INFO] [stdout]      |
[INFO] [stdout] 5189 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `Command { std: "docker" "inspect" "20eb7bd864f4149d9f2e90fc1034015bf8136fcb73ee4a987df2fbd63e1a516d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20eb7bd864f4149d9f2e90fc1034015bf8136fcb73ee4a987df2fbd63e1a516d", kill_on_drop: false }`
[INFO] [stdout] 20eb7bd864f4149d9f2e90fc1034015bf8136fcb73ee4a987df2fbd63e1a516d