[INFO] cloning repository https://github.com/Angarsk8/learning_rust_collections_exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Angarsk8/learning_rust_collections_exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngarsk8%2Flearning_rust_collections_exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngarsk8%2Flearning_rust_collections_exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3359894699fa423b3591326ad3fa296816b77e7f
[INFO] documenting Angarsk8/learning_rust_collections_exercises against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngarsk8%2Flearning_rust_collections_exercises" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Angarsk8/learning_rust_collections_exercises on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Angarsk8/learning_rust_collections_exercises
[INFO] finished tweaking git repo https://github.com/Angarsk8/learning_rust_collections_exercises
[INFO] tweaked toml for git repo https://github.com/Angarsk8/learning_rust_collections_exercises written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Angarsk8/learning_rust_collections_exercises already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c91e10c49b4fed8f90ffa865cf00174e31cb7caae36e8796fbf97fb2fb3379ea
[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" "c91e10c49b4fed8f90ffa865cf00174e31cb7caae36e8796fbf97fb2fb3379ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c91e10c49b4fed8f90ffa865cf00174e31cb7caae36e8796fbf97fb2fb3379ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c91e10c49b4fed8f90ffa865cf00174e31cb7caae36e8796fbf97fb2fb3379ea", kill_on_drop: false }`
[INFO] [stdout] c91e10c49b4fed8f90ffa865cf00174e31cb7caae36e8796fbf97fb2fb3379ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61460b019a019e2c973b96c9d4640fdd1e4aa57b7102197a8f8f9c42018ac356
[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" "61460b019a019e2c973b96c9d4640fdd1e4aa57b7102197a8f8f9c42018ac356", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]  Documenting collections v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.34s
[INFO] running `Command { std: "docker" "inspect" "61460b019a019e2c973b96c9d4640fdd1e4aa57b7102197a8f8f9c42018ac356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61460b019a019e2c973b96c9d4640fdd1e4aa57b7102197a8f8f9c42018ac356", kill_on_drop: false }`
[INFO] [stdout] 61460b019a019e2c973b96c9d4640fdd1e4aa57b7102197a8f8f9c42018ac356