[INFO] cloning repository https://github.com/vihu/erlang-skiplist
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vihu/erlang-skiplist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvihu%2Ferlang-skiplist", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvihu%2Ferlang-skiplist'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf533ed2578ba7fefc13a9c935b4d9bd81b0921c
[INFO] documenting vihu/erlang-skiplist against try#6ee483316d2e4581572121d60a955affb2032eb3+cargoflags=-Zrustdoc-scrape-examples for scrape-examples
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvihu%2Ferlang-skiplist" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vihu/erlang-skiplist on toolchain 6ee483316d2e4581572121d60a955affb2032eb3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/vihu/erlang-skiplist
[INFO] finished tweaking git repo https://github.com/vihu/erlang-skiplist
[INFO] tweaked toml for git repo https://github.com/vihu/erlang-skiplist written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/vihu/erlang-skiplist already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4470f98b0c61f49c6da0665256d8dc2af542c194c3e29e59beb3fc6fc12809a
[INFO] running `Command { std: "docker" "start" "-a" "f4470f98b0c61f49c6da0665256d8dc2af542c194c3e29e59beb3fc6fc12809a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4470f98b0c61f49c6da0665256d8dc2af542c194c3e29e59beb3fc6fc12809a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4470f98b0c61f49c6da0665256d8dc2af542c194c3e29e59beb3fc6fc12809a", kill_on_drop: false }`
[INFO] [stdout] f4470f98b0c61f49c6da0665256d8dc2af542c194c3e29e59beb3fc6fc12809a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] f6bf6037e8f991100613a70839509f4f73a3f619ba06687fcd73d50d92f9c49b
[INFO] running `Command { std: "docker" "start" "-a" "f6bf6037e8f991100613a70839509f4f73a3f619ba06687fcd73d50d92f9c49b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling rustler v0.23.0 (https://github.com/vihu/rustler.git?branch=rg/unload-upgrade#4ebfdf70)
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling native v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking skiplist v0.4.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling rustler_sys v2.1.1 (https://github.com/vihu/rustler.git?branch=rg/unload-upgrade#4ebfdf70)
[INFO] [stderr]    Compiling rustler_codegen v0.23.0 (https://github.com/vihu/rustler.git?branch=rg/unload-upgrade#4ebfdf70)
[INFO] [stderr]     Scraping native v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting native v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.94s
[INFO] running `Command { std: "docker" "inspect" "f6bf6037e8f991100613a70839509f4f73a3f619ba06687fcd73d50d92f9c49b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6bf6037e8f991100613a70839509f4f73a3f619ba06687fcd73d50d92f9c49b", kill_on_drop: false }`
[INFO] [stdout] f6bf6037e8f991100613a70839509f4f73a3f619ba06687fcd73d50d92f9c49b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] 3a2888c6a0b0002e25e5111ca909c882451d443b9536ef2f61367261448cb489
[INFO] running `Command { std: "docker" "start" "-a" "3a2888c6a0b0002e25e5111ca909c882451d443b9536ef2f61367261448cb489", kill_on_drop: false }`
[INFO] [stderr]    Compiling native v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Scraping native v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting native v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "3a2888c6a0b0002e25e5111ca909c882451d443b9536ef2f61367261448cb489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a2888c6a0b0002e25e5111ca909c882451d443b9536ef2f61367261448cb489", kill_on_drop: false }`
[INFO] [stdout] 3a2888c6a0b0002e25e5111ca909c882451d443b9536ef2f61367261448cb489