[INFO] cloning repository https://github.com/kmate/hack-assembler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kmate/hack-assembler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmate%2Fhack-assembler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmate%2Fhack-assembler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7916ac4eadf84d7adbd57482330881ee82d691ec
[INFO] documenting kmate/hack-assembler 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%2Fkmate%2Fhack-assembler" "/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/kmate/hack-assembler 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/kmate/hack-assembler
[INFO] finished tweaking git repo https://github.com/kmate/hack-assembler
[INFO] tweaked toml for git repo https://github.com/kmate/hack-assembler written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/kmate/hack-assembler 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] 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] 34381679e7e3dc909630613f233ab828600ef770830b009ad9d5316208bd204c
[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" "34381679e7e3dc909630613f233ab828600ef770830b009ad9d5316208bd204c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34381679e7e3dc909630613f233ab828600ef770830b009ad9d5316208bd204c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34381679e7e3dc909630613f233ab828600ef770830b009ad9d5316208bd204c", kill_on_drop: false }`
[INFO] [stdout] 34381679e7e3dc909630613f233ab828600ef770830b009ad9d5316208bd204c
[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] fb53fbf4e5a0c211960a0b17be7c7242cf9c371796286f1d9212019cdadc5d57
[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" "fb53fbf4e5a0c211960a0b17be7c7242cf9c371796286f1d9212019cdadc5d57", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.29
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking textwrap v0.7.0
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking clap v2.26.0
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]  Documenting hack-assembler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/parser.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 | /         (Ok(CInst {
[INFO] [stdout] 114 | |             comp: parts.name("comp").unwrap().as_str(),
[INFO] [stdout] 115 | |             dest: parts.name("dest").map(|x| x.as_str()),
[INFO] [stdout] 116 | |             jump: parts.name("jump").map(|x| x.as_str()),
[INFO] [stdout] 117 | |         }))
[INFO] [stdout]     | |___________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 113 |         Ok(CInst {
[INFO] [stdout] 114 |             comp: parts.name("comp").unwrap().as_str(),
[INFO] [stdout] 115 |             dest: parts.name("dest").map(|x| x.as_str()),
[INFO] [stdout] 116 |             jump: parts.name("jump").map(|x| x.as_str()),
[INFO] [stdout] 117 |         })
[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 7.90s
[INFO] running `Command { std: "docker" "inspect" "fb53fbf4e5a0c211960a0b17be7c7242cf9c371796286f1d9212019cdadc5d57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb53fbf4e5a0c211960a0b17be7c7242cf9c371796286f1d9212019cdadc5d57", kill_on_drop: false }`
[INFO] [stdout] fb53fbf4e5a0c211960a0b17be7c7242cf9c371796286f1d9212019cdadc5d57