[INFO] cloning repository https://github.com/kolloch/reproduce_carnix_21
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kolloch/reproduce_carnix_21" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkolloch%2Freproduce_carnix_21", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkolloch%2Freproduce_carnix_21'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1cc8b4bf680da7978bee2c391573a342413f8a66
[INFO] documenting kolloch/reproduce_carnix_21 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%2Fkolloch%2Freproduce_carnix_21" "/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/kolloch/reproduce_carnix_21 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] started tweaking git repo https://github.com/kolloch/reproduce_carnix_21
[INFO] finished tweaking git repo https://github.com/kolloch/reproduce_carnix_21
[INFO] tweaked toml for git repo https://github.com/kolloch/reproduce_carnix_21 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/kolloch/reproduce_carnix_21 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-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" "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] a3d1d946043837cda863edf850cdcd7f78c9d77160d076fc655cbd2582d2ea59
[INFO] running `Command { std: "docker" "start" "-a" "a3d1d946043837cda863edf850cdcd7f78c9d77160d076fc655cbd2582d2ea59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3d1d946043837cda863edf850cdcd7f78c9d77160d076fc655cbd2582d2ea59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3d1d946043837cda863edf850cdcd7f78c9d77160d076fc655cbd2582d2ea59", kill_on_drop: false }`
[INFO] [stdout] a3d1d946043837cda863edf850cdcd7f78c9d77160d076fc655cbd2582d2ea59
[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" "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] 65af4effe34d055bc55dbfdc55cc306179dfccfb442b61c5b4e13102b05b42aa
[INFO] running `Command { std: "docker" "start" "-a" "65af4effe34d055bc55dbfdc55cc306179dfccfb442b61c5b4e13102b05b42aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]    Compiling diesel_derives v1.3.0
[INFO] [stderr]     Checking diesel v1.3.3
[INFO] [stderr] warning: failed to check lib in package `diesel` as a prerequisite for scraping examples from: bin "reproduce_carnix_21"
[INFO] [stderr]     Try running with `--verbose` to see the error message.
[INFO] [stderr]     If an example or library should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` or `[lib]` definition in /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/diesel-1.3.3/Cargo.toml
[INFO] [stderr] warning: `diesel` (lib) generated 1 warning
[INFO] [stderr]     Scraping reproduce_carnix_21 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting reproduce_carnix_21 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.50s
[INFO] running `Command { std: "docker" "inspect" "65af4effe34d055bc55dbfdc55cc306179dfccfb442b61c5b4e13102b05b42aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65af4effe34d055bc55dbfdc55cc306179dfccfb442b61c5b4e13102b05b42aa", kill_on_drop: false }`
[INFO] [stdout] 65af4effe34d055bc55dbfdc55cc306179dfccfb442b61c5b4e13102b05b42aa