[INFO] fetching crate coldsnap 0.1.0...
[INFO] documenting coldsnap-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate coldsnap 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate coldsnap 0.1.0 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 coldsnap 0.1.0
[INFO] finished tweaking crates.io crate coldsnap 0.1.0
[INFO] tweaked toml for crates.io crate coldsnap 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate coldsnap 0.1.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusoto_ec2 v0.45.0
[INFO] [stderr]   Downloaded rusoto_ebs v0.45.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 299a7545d1d0df5ff1d0b3220287397b9b0bbdff0198a9816373193f4d619213
[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" "299a7545d1d0df5ff1d0b3220287397b9b0bbdff0198a9816373193f4d619213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "299a7545d1d0df5ff1d0b3220287397b9b0bbdff0198a9816373193f4d619213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "299a7545d1d0df5ff1d0b3220287397b9b0bbdff0198a9816373193f4d619213", kill_on_drop: false }`
[INFO] [stdout] 299a7545d1d0df5ff1d0b3220287397b9b0bbdff0198a9816373193f4d619213
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 63a7a88e43da4ceeaffe3a091d3594aed77c55e8a25398b03077bb36fc096fd8
[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" "63a7a88e43da4ceeaffe3a091d3594aed77c55e8a25398b03077bb36fc096fd8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling argh_shared v0.1.1
[INFO] [stderr]    Compiling generic-array v0.14.3
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]    Compiling standback v0.2.9
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking tracing-core v0.1.13
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling time v0.2.16
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]    Compiling rusoto_core v0.45.0
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking tracing v0.1.18
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]    Compiling snafu-derive v0.6.8
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking argh v0.1.3
[INFO] [stderr]     Checking snafu v0.6.8
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking rusoto_credential v0.45.0
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking rusoto_signature v0.45.0
[INFO] [stderr]     Checking rusoto_ec2 v0.45.0
[INFO] [stderr]     Checking rusoto_ebs v0.45.0
[INFO] [stderr]  Documenting coldsnap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 04s
[INFO] running `Command { std: "docker" "inspect" "63a7a88e43da4ceeaffe3a091d3594aed77c55e8a25398b03077bb36fc096fd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a7a88e43da4ceeaffe3a091d3594aed77c55e8a25398b03077bb36fc096fd8", kill_on_drop: false }`
[INFO] [stdout] 63a7a88e43da4ceeaffe3a091d3594aed77c55e8a25398b03077bb36fc096fd8