[INFO] cloning repository https://github.com/appetrosyan/altman_interview_solution
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/appetrosyan/altman_interview_solution" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fappetrosyan%2Faltman_interview_solution", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fappetrosyan%2Faltman_interview_solution'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e4b1b1e25246bba2dd36e207ce98b7d632ab18f
[INFO] documenting appetrosyan/altman_interview_solution against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fappetrosyan%2Faltman_interview_solution" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/appetrosyan/altman_interview_solution on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/appetrosyan/altman_interview_solution
[INFO] finished tweaking git repo https://github.com/appetrosyan/altman_interview_solution
[INFO] tweaked toml for git repo https://github.com/appetrosyan/altman_interview_solution written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/appetrosyan/altman_interview_solution already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdde277b0404627c8d0fb85812abec3042c2919a241d184530cab6a0fa95676e
[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" "fdde277b0404627c8d0fb85812abec3042c2919a241d184530cab6a0fa95676e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdde277b0404627c8d0fb85812abec3042c2919a241d184530cab6a0fa95676e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdde277b0404627c8d0fb85812abec3042c2919a241d184530cab6a0fa95676e", kill_on_drop: false }`
[INFO] [stdout] fdde277b0404627c8d0fb85812abec3042c2919a241d184530cab6a0fa95676e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 54b58bd3dd7693405e6b227212e0c95dae41f9e022369816c8aab85aeb8b46a9
[INFO] running `Command { std: "docker" "start" "-a" "54b58bd3dd7693405e6b227212e0c95dae41f9e022369816c8aab85aeb8b46a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking tracing-core v0.1.19
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling openssl-sys v0.9.66
[INFO] [stderr]     Checking http-body v0.4.3
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking h2 v0.3.4
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking hyper v0.14.12
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.4
[INFO] [stderr]  Documenting untitled_altman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.45s
[INFO] running `Command { std: "docker" "inspect" "54b58bd3dd7693405e6b227212e0c95dae41f9e022369816c8aab85aeb8b46a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54b58bd3dd7693405e6b227212e0c95dae41f9e022369816c8aab85aeb8b46a9", kill_on_drop: false }`
[INFO] [stdout] 54b58bd3dd7693405e6b227212e0c95dae41f9e022369816c8aab85aeb8b46a9