[INFO] cloning repository https://github.com/tomvidm/rusty-cas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tomvidm/rusty-cas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomvidm%2Frusty-cas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomvidm%2Frusty-cas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e22427513d23384a02bb705850a9930e1a073d3
[INFO] documenting tomvidm/rusty-cas 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%2Ftomvidm%2Frusty-cas" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tomvidm/rusty-cas 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/tomvidm/rusty-cas
[INFO] finished tweaking git repo https://github.com/tomvidm/rusty-cas
[INFO] tweaked toml for git repo https://github.com/tomvidm/rusty-cas written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/tomvidm/rusty-cas 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 8693e19e5ed5127e04c964572a16d0c683b3387051d6cdf9408ca3eac001b7b9
[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" "8693e19e5ed5127e04c964572a16d0c683b3387051d6cdf9408ca3eac001b7b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8693e19e5ed5127e04c964572a16d0c683b3387051d6cdf9408ca3eac001b7b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8693e19e5ed5127e04c964572a16d0c683b3387051d6cdf9408ca3eac001b7b9", kill_on_drop: false }`
[INFO] [stdout] 8693e19e5ed5127e04c964572a16d0c683b3387051d6cdf9408ca3eac001b7b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 7281001242d8c544cd4479a1910a7d8c96e501f712de1cf2f109910383a708d9
[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" "7281001242d8c544cd4479a1910a7d8c96e501f712de1cf2f109910383a708d9", kill_on_drop: false }`
[INFO] [stderr]  Documenting sym v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/symengine.rs:46:61
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn get_index_of_variable(&self, key: &String) -> Option<(usize)> {
[INFO] [stdout]    |                                                             ^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:174:16
[INFO] [stdout]     |
[INFO] [stdout] 174 |             '0'...'9' => tokens.push(Term(TermToken::Number(Numeric::from_integer(ch.to_digit(10).unwrap() as IntegerType)))),
[INFO] [stdout]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:175:16
[INFO] [stdout]     |
[INFO] [stdout] 175 |             'A'...'z' => tokens.push(Term(TermToken::VariableKey(ch.to_string()))),
[INFO] [stdout]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "7281001242d8c544cd4479a1910a7d8c96e501f712de1cf2f109910383a708d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7281001242d8c544cd4479a1910a7d8c96e501f712de1cf2f109910383a708d9", kill_on_drop: false }`
[INFO] [stdout] 7281001242d8c544cd4479a1910a7d8c96e501f712de1cf2f109910383a708d9