[INFO] cloning repository https://github.com/cmr/multiway-tug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cmr/multiway-tug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmr%2Fmultiway-tug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmr%2Fmultiway-tug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 882fd07e17cab6c53b171c31af2b5831887e02c9
[INFO] documenting cmr/multiway-tug 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%2Fcmr%2Fmultiway-tug" "/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/cmr/multiway-tug 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/cmr/multiway-tug
[INFO] finished tweaking git repo https://github.com/cmr/multiway-tug
[INFO] tweaked toml for git repo https://github.com/cmr/multiway-tug written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/cmr/multiway-tug 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 rustc_version v0.1.7
[INFO] [stderr]   Downloaded rand_pcg v0.2.0
[INFO] [stderr]   Downloaded newtype_derive v0.1.6
[INFO] [stderr]   Downloaded serde_cbor v0.10.0
[INFO] [stderr]   Downloaded backtrace-sys v0.1.30
[INFO] [stderr]   Downloaded tui v0.6.1
[INFO] [stderr]   Downloaded half v1.3.0
[INFO] [stderr]   Downloaded semver v0.1.20
[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" "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] [stdout] d3deeeec268d55757de790a346cc12732c7e8935f7c1218b0265d32b98b61e6c
[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" "d3deeeec268d55757de790a346cc12732c7e8935f7c1218b0265d32b98b61e6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3deeeec268d55757de790a346cc12732c7e8935f7c1218b0265d32b98b61e6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3deeeec268d55757de790a346cc12732c7e8935f7c1218b0265d32b98b61e6c", kill_on_drop: false }`
[INFO] [stdout] d3deeeec268d55757de790a346cc12732c7e8935f7c1218b0265d32b98b61e6c
[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" "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] 9c6497e82fdaedbd61ccf94bc7b3ae1c8b6fff7b6af2f5df5bfad9d6b91b018d
[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" "9c6497e82fdaedbd61ccf94bc7b3ae1c8b6fff7b6af2f5df5bfad9d6b91b018d", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking half v1.3.0
[INFO] [stderr]     Checking unicode-segmentation v1.3.0
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking tui v0.6.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking serde_cbor v0.10.0
[INFO] [stderr]     Checking rand_pcg v0.2.0
[INFO] [stderr]  Documenting multiway-tug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.57s
[INFO] running `Command { std: "docker" "inspect" "9c6497e82fdaedbd61ccf94bc7b3ae1c8b6fff7b6af2f5df5bfad9d6b91b018d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c6497e82fdaedbd61ccf94bc7b3ae1c8b6fff7b6af2f5df5bfad9d6b91b018d", kill_on_drop: false }`
[INFO] [stdout] 9c6497e82fdaedbd61ccf94bc7b3ae1c8b6fff7b6af2f5df5bfad9d6b91b018d