[INFO] cloning repository https://github.com/RafaelBM91/rust-crud
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RafaelBM91/rust-crud" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRafaelBM91%2Frust-crud", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRafaelBM91%2Frust-crud'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 373716fc3fcd5c5e206099aa46bd3f0f1f2ca69b
[INFO] documenting RafaelBM91/rust-crud 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%2FRafaelBM91%2Frust-crud" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RafaelBM91/rust-crud 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/RafaelBM91/rust-crud
[INFO] finished tweaking git repo https://github.com/RafaelBM91/rust-crud
[INFO] tweaked toml for git repo https://github.com/RafaelBM91/rust-crud written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/RafaelBM91/rust-crud 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 mount v0.4.0
[INFO] [stderr]   Downloaded bodyparser v0.8.0
[INFO] [stderr]   Downloaded juniper_codegen v0.11.1
[INFO] [stderr]   Downloaded mime_guess v1.8.7
[INFO] [stderr]   Downloaded logger v0.4.0
[INFO] [stderr]   Downloaded sequence_trie v0.3.6
[INFO] [stderr]   Downloaded persistent v0.4.0
[INFO] [stderr]   Downloaded urlencoded v0.6.0
[INFO] [stderr]   Downloaded juniper v0.11.1
[INFO] [stderr]   Downloaded juniper_iron v0.3.0
[INFO] [stderr]   Downloaded iron v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 04d24e09fb249697c18f9d3600ad1b222a2af8231b090471091e7dd0d36f22ae
[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" "04d24e09fb249697c18f9d3600ad1b222a2af8231b090471091e7dd0d36f22ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04d24e09fb249697c18f9d3600ad1b222a2af8231b090471091e7dd0d36f22ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d24e09fb249697c18f9d3600ad1b222a2af8231b090471091e7dd0d36f22ae", kill_on_drop: false }`
[INFO] [stdout] 04d24e09fb249697c18f9d3600ad1b222a2af8231b090471091e7dd0d36f22ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 9fa494134b71ff111fa367b24312f34f290bfb49fce0224260da4d7ca097ea9d
[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" "9fa494134b71ff111fa367b24312f34f290bfb49fce0224260da4d7ca097ea9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling regex-syntax v0.6.6
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking crypto-mac v0.6.2
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking sha-1 v0.7.0
[INFO] [stderr]     Checking md-5 v0.7.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking hmac v0.6.3
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking scan_fmt v0.1.3
[INFO] [stderr]     Checking pbkdf2 v0.2.3
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking textnonce v0.6.5
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking bson v0.13.0
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking mongodb v0.3.12
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]     Checking iron v0.6.0
[INFO] [stderr]     Checking persistent v0.4.0
[INFO] [stderr]     Checking mount v0.4.0
[INFO] [stderr]     Checking logger v0.4.0
[INFO] [stderr]     Checking bodyparser v0.8.0
[INFO] [stderr]     Checking urlencoded v0.6.0
[INFO] [stderr]    Compiling juniper_codegen v0.11.1
[INFO] [stderr]     Checking juniper v0.11.1
[INFO] [stderr]     Checking juniper_iron v0.3.0
[INFO] [stderr]  Documenting rust-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mongo.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             (value.as_null() == None)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "9fa494134b71ff111fa367b24312f34f290bfb49fce0224260da4d7ca097ea9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fa494134b71ff111fa367b24312f34f290bfb49fce0224260da4d7ca097ea9d", kill_on_drop: false }`
[INFO] [stdout] 9fa494134b71ff111fa367b24312f34f290bfb49fce0224260da4d7ca097ea9d