[INFO] cloning repository https://github.com/df5602/interpreter_tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/df5602/interpreter_tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdf5602%2Finterpreter_tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdf5602%2Finterpreter_tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56cce21a7c0ad1d6cbf3bcc5751fc2196ae345b2
[INFO] documenting df5602/interpreter_tutorial 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%2Fdf5602%2Finterpreter_tutorial" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/df5602/interpreter_tutorial 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/df5602/interpreter_tutorial
[INFO] finished tweaking git repo https://github.com/df5602/interpreter_tutorial
[INFO] tweaked toml for git repo https://github.com/df5602/interpreter_tutorial written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/df5602/interpreter_tutorial 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.21
[INFO] [stderr]   Downloaded gcc v0.3.45
[INFO] [stderr]   Downloaded quale v1.0.0
[INFO] [stderr]   Downloaded unicode-width v0.1.4
[INFO] [stderr]   Downloaded afl-plugin v0.1.5
[INFO] [stderr]   Downloaded afl v0.1.5
[INFO] [stderr]   Downloaded leftpad v0.2.0
[INFO] [stderr]   Downloaded afl-sys v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 84fab0b38955a367bd9ebe1648bd94d2813dd4bbe4d527d0cc08137cb976f190
[INFO] running `Command { std: "docker" "start" "-a" "84fab0b38955a367bd9ebe1648bd94d2813dd4bbe4d527d0cc08137cb976f190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84fab0b38955a367bd9ebe1648bd94d2813dd4bbe4d527d0cc08137cb976f190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84fab0b38955a367bd9ebe1648bd94d2813dd4bbe4d527d0cc08137cb976f190", kill_on_drop: false }`
[INFO] [stdout] 84fab0b38955a367bd9ebe1648bd94d2813dd4bbe4d527d0cc08137cb976f190
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] fca1ae8b51eb2365cd1a4d871085072440f31389bd3ec5a4854850d8aff5a48e
[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" "fca1ae8b51eb2365cd1a4d871085072440f31389bd3ec5a4854850d8aff5a48e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking leftpad v0.2.0
[INFO] [stderr]  Documenting interpreter_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.79s
[INFO] running `Command { std: "docker" "inspect" "fca1ae8b51eb2365cd1a4d871085072440f31389bd3ec5a4854850d8aff5a48e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fca1ae8b51eb2365cd1a4d871085072440f31389bd3ec5a4854850d8aff5a48e", kill_on_drop: false }`
[INFO] [stdout] fca1ae8b51eb2365cd1a4d871085072440f31389bd3ec5a4854850d8aff5a48e