[INFO] fetching crate multican 0.6.0-beta.1...
[INFO] documenting multican-0.6.0-beta.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate multican 0.6.0-beta.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate multican 0.6.0-beta.1 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 crates.io crate multican 0.6.0-beta.1
[INFO] finished tweaking crates.io crate multican 0.6.0-beta.1
[INFO] tweaked toml for crates.io crate multican 0.6.0-beta.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate multican 0.6.0-beta.1 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 quasi_codegen v0.32.0
[INFO] [stderr]   Downloaded syntex v0.58.1
[INFO] [stderr]   Downloaded try_from v0.2.2
[INFO] [stderr]   Downloaded syntex_errors v0.58.1
[INFO] [stderr]   Downloaded miow v0.3.4
[INFO] [stderr]   Downloaded bindgen v0.24.0
[INFO] [stderr]   Downloaded quasi v0.32.0
[INFO] [stderr]   Downloaded clang-sys v0.16.0
[INFO] [stderr]   Downloaded syntex_pos v0.58.1
[INFO] [stderr]   Downloaded pcan-basic-sys v0.2.0
[INFO] [stderr]   Downloaded aster v0.41.0
[INFO] [stderr]   Downloaded syntex_syntax v0.58.1
[INFO] [stderr]   Downloaded socketcan v1.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 1f98f55e4516314dea4b9086d5fdd5678f4c50cfd7c35771969fab05b89b7f09
[INFO] running `Command { std: "docker" "start" "-a" "1f98f55e4516314dea4b9086d5fdd5678f4c50cfd7c35771969fab05b89b7f09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f98f55e4516314dea4b9086d5fdd5678f4c50cfd7c35771969fab05b89b7f09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f98f55e4516314dea4b9086d5fdd5678f4c50cfd7c35771969fab05b89b7f09", kill_on_drop: false }`
[INFO] [stdout] 1f98f55e4516314dea4b9086d5fdd5678f4c50cfd7c35771969fab05b89b7f09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] d6201f67f5c06414be4e5b5bb1ff3897065a26c0cb559ebd5d3867ce46051756
[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" "d6201f67f5c06414be4e5b5bb1ff3897065a26c0cb559ebd5d3867ce46051756", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.64
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking hex v0.2.0
[INFO] [stderr]     Checking try_from v0.2.2
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking socketcan v1.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]  Documenting multican v0.6.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.05s
[INFO] running `Command { std: "docker" "inspect" "d6201f67f5c06414be4e5b5bb1ff3897065a26c0cb559ebd5d3867ce46051756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6201f67f5c06414be4e5b5bb1ff3897065a26c0cb559ebd5d3867ce46051756", kill_on_drop: false }`
[INFO] [stdout] d6201f67f5c06414be4e5b5bb1ff3897065a26c0cb559ebd5d3867ce46051756