[INFO] fetching crate async-mongodb-session 1.0.0...
[INFO] documenting async-mongodb-session-1.0.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate async-mongodb-session 1.0.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate async-mongodb-session 1.0.0 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 async-mongodb-session 1.0.0
[INFO] finished tweaking crates.io crate async-mongodb-session 1.0.0
[INFO] tweaked toml for crates.io crate async-mongodb-session 1.0.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 21ad819a736f7d3057174b0455e3ad9f82c51e60e3fe69209cd9a9e7af08b044
[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" "21ad819a736f7d3057174b0455e3ad9f82c51e60e3fe69209cd9a9e7af08b044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21ad819a736f7d3057174b0455e3ad9f82c51e60e3fe69209cd9a9e7af08b044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21ad819a736f7d3057174b0455e3ad9f82c51e60e3fe69209cd9a9e7af08b044", kill_on_drop: false }`
[INFO] [stdout] 21ad819a736f7d3057174b0455e3ad9f82c51e60e3fe69209cd9a9e7af08b044
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] acd45c0d07ede42c63d732f9f530489d1a07c671c71ddbb6d996debf471f0c52
[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" "acd45c0d07ede42c63d732f9f530489d1a07c671c71ddbb6d996debf471f0c52", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
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[INFO] [stderr]    Compiling quote v1.0.7
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[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking tokio-rustls v0.13.1
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling serde_with_macros v1.1.0
[INFO] [stderr]    Compiling derivative v2.1.1
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[INFO] [stderr]     Checking async-std v1.6.3
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[INFO] [stderr]     Checking async-session v2.0.1
[INFO] [stderr]     Checking mongodb v1.1.1
[INFO] [stderr]  Documenting async-mongodb-session v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 52s
[INFO] running `Command { std: "docker" "inspect" "acd45c0d07ede42c63d732f9f530489d1a07c671c71ddbb6d996debf471f0c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acd45c0d07ede42c63d732f9f530489d1a07c671c71ddbb6d996debf471f0c52", kill_on_drop: false }`
[INFO] [stdout] acd45c0d07ede42c63d732f9f530489d1a07c671c71ddbb6d996debf471f0c52