[INFO] cloning repository https://github.com/simtron/rust_bst
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simtron/rust_bst" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimtron%2Frust_bst", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimtron%2Frust_bst'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 05c852f613e40e0b76f4c4b330eaebf22ba1811b
[INFO] documenting simtron/rust_bst against try#6fd27704e643b25711e6a97ec2b04873b411b97d for pr-96676
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimtron%2Frust_bst" "/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/simtron/rust_bst on toolchain 6fd27704e643b25711e6a97ec2b04873b411b97d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simtron/rust_bst
[INFO] finished tweaking git repo https://github.com/simtron/rust_bst
[INFO] tweaked toml for git repo https://github.com/simtron/rust_bst written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/simtron/rust_bst already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "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] 27209c2931eb746edb8cf3a6ab34ddc71f03db4942d0042873680230997e88fd
[INFO] running `Command { std: "docker" "start" "-a" "27209c2931eb746edb8cf3a6ab34ddc71f03db4942d0042873680230997e88fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27209c2931eb746edb8cf3a6ab34ddc71f03db4942d0042873680230997e88fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27209c2931eb746edb8cf3a6ab34ddc71f03db4942d0042873680230997e88fd", kill_on_drop: false }`
[INFO] [stdout] 27209c2931eb746edb8cf3a6ab34ddc71f03db4942d0042873680230997e88fd
[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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "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] 99d511615080bddc88116293c2195c985c5a49e26ee95cd2bfcf6945edea1a5a
[INFO] running `Command { std: "docker" "start" "-a" "99d511615080bddc88116293c2195c985c5a49e26ee95cd2bfcf6945edea1a5a", kill_on_drop: false }`
[INFO] [stderr]     Checking bin_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting bin_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `Command { std: "docker" "inspect" "99d511615080bddc88116293c2195c985c5a49e26ee95cd2bfcf6945edea1a5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99d511615080bddc88116293c2195c985c5a49e26ee95cd2bfcf6945edea1a5a", kill_on_drop: false }`
[INFO] [stdout] 99d511615080bddc88116293c2195c985c5a49e26ee95cd2bfcf6945edea1a5a
[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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", 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] 2a990d5c5bbd8a07e303421dd259fa39b23b494ef51d9d46fbcde994e36154ec
[INFO] running `Command { std: "docker" "start" "-a" "2a990d5c5bbd8a07e303421dd259fa39b23b494ef51d9d46fbcde994e36154ec", kill_on_drop: false }`
[INFO] [stderr]  Documenting bin_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "2a990d5c5bbd8a07e303421dd259fa39b23b494ef51d9d46fbcde994e36154ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a990d5c5bbd8a07e303421dd259fa39b23b494ef51d9d46fbcde994e36154ec", kill_on_drop: false }`
[INFO] [stdout] 2a990d5c5bbd8a07e303421dd259fa39b23b494ef51d9d46fbcde994e36154ec