[INFO] fetching crate ketos 0.12.0...
[INFO] documenting ketos-0.12.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate ketos 0.12.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ketos 0.12.0 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 ketos 0.12.0
[INFO] finished tweaking crates.io crate ketos 0.12.0
[INFO] tweaked toml for crates.io crate ketos 0.12.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate ketos 0.12.0 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 ketos_derive v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] bf8090db318286eeadf6c49e16ae4bc1d6dce675d5a5abdc540e9e17dcbd6ad7
[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" "bf8090db318286eeadf6c49e16ae4bc1d6dce675d5a5abdc540e9e17dcbd6ad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf8090db318286eeadf6c49e16ae4bc1d6dce675d5a5abdc540e9e17dcbd6ad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf8090db318286eeadf6c49e16ae4bc1d6dce675d5a5abdc540e9e17dcbd6ad7", kill_on_drop: false }`
[INFO] [stdout] bf8090db318286eeadf6c49e16ae4bc1d6dce675d5a5abdc540e9e17dcbd6ad7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] c2e2885a1c8752881ca458edce6109f0f770f06342566d0723f9836d14140940
[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" "c2e2885a1c8752881ca458edce6109f0f770f06342566d0723f9836d14140940", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking smallstr v0.1.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling terminfo v0.6.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling gumdrop_derive v0.7.0
[INFO] [stderr]     Checking gumdrop v0.7.0
[INFO] [stderr]     Checking mortal v0.2.1
[INFO] [stderr]     Checking linefeed v0.6.0
[INFO] [stderr]  Documenting ketos v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.90s
[INFO] running `Command { std: "docker" "inspect" "c2e2885a1c8752881ca458edce6109f0f770f06342566d0723f9836d14140940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2e2885a1c8752881ca458edce6109f0f770f06342566d0723f9836d14140940", kill_on_drop: false }`
[INFO] [stdout] c2e2885a1c8752881ca458edce6109f0f770f06342566d0723f9836d14140940