[INFO] cloning repository https://github.com/patallen/SlangVM
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/patallen/SlangVM" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatallen%2FSlangVM", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatallen%2FSlangVM'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7660c5494308d811895b859bbd512253f72ba01d
[INFO] documenting patallen/SlangVM against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatallen%2FSlangVM" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/patallen/SlangVM on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/patallen/SlangVM
[INFO] finished tweaking git repo https://github.com/patallen/SlangVM
[INFO] tweaked toml for git repo https://github.com/patallen/SlangVM written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/patallen/SlangVM already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f6a5ef11b07299aa57976f9e06ab3db19153d6d82db0274796893757f3e6639
[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" "4f6a5ef11b07299aa57976f9e06ab3db19153d6d82db0274796893757f3e6639", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f6a5ef11b07299aa57976f9e06ab3db19153d6d82db0274796893757f3e6639", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f6a5ef11b07299aa57976f9e06ab3db19153d6d82db0274796893757f3e6639", kill_on_drop: false }`
[INFO] [stdout] 4f6a5ef11b07299aa57976f9e06ab3db19153d6d82db0274796893757f3e6639
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fbbf64938ecbc12ff5946f2c0a502e6213f2f66642d457a1a4d9d886ca43d6d
[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" "9fbbf64938ecbc12ff5946f2c0a502e6213f2f66642d457a1a4d9d886ca43d6d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.22
[INFO] [stderr]    Compiling gcc v0.3.46
[INFO] [stderr]     Checking serde v1.0.4
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking quick-error v1.2.0
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking fnv v1.0.5
[INFO] [stderr]     Checking crossbeam v0.2.10
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.0
[INFO] [stderr]     Checking log v0.3.7
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking unsafe-any v0.4.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking humantime v1.0.0
[INFO] [stderr]     Checking ordered-float v0.4.0
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking itertools v0.6.0
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking thread-id v3.1.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]    Compiling miniz-sys v0.1.9
[INFO] [stderr]     Checking chrono v0.3.1
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr]     Checking flate2 v0.2.19
[INFO] [stderr]    Compiling serde_derive_internals v0.15.0
[INFO] [stderr]    Compiling serde_derive v1.0.4
[INFO] [stderr]     Checking serde_yaml v0.7.0
[INFO] [stderr]     Checking serde-value v0.5.0
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]     Checking log4rs v0.7.0
[INFO] [stderr]  Documenting slang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.10s
[INFO] running `Command { std: "docker" "inspect" "9fbbf64938ecbc12ff5946f2c0a502e6213f2f66642d457a1a4d9d886ca43d6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fbbf64938ecbc12ff5946f2c0a502e6213f2f66642d457a1a4d9d886ca43d6d", kill_on_drop: false }`
[INFO] [stdout] 9fbbf64938ecbc12ff5946f2c0a502e6213f2f66642d457a1a4d9d886ca43d6d