[INFO] cloning repository https://github.com/txstate-etc/d2l-sync
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/txstate-etc/d2l-sync" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftxstate-etc%2Fd2l-sync", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftxstate-etc%2Fd2l-sync'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51e65dd0471c7fbb56c64a4659fe9ff80e5dd921
[INFO] documenting txstate-etc/d2l-sync 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%2Ftxstate-etc%2Fd2l-sync" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/txstate-etc/d2l-sync 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/txstate-etc/d2l-sync
[INFO] finished tweaking git repo https://github.com/txstate-etc/d2l-sync
[INFO] tweaked toml for git repo https://github.com/txstate-etc/d2l-sync written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/txstate-etc/d2l-sync 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 named_pipe v0.3.0
[INFO] [stderr]   Downloaded tokio v0.1.9
[INFO] [stderr]   Downloaded mysql_common v0.5.0
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.2
[INFO] [stderr]   Downloaded mysql v12.3.1
[INFO] [stderr]   Downloaded reqwest v0.9.2
[INFO] [stderr]   Downloaded webpki v0.18.1
[INFO] [stderr]   Downloaded atoi v0.2.3
[INFO] [stderr]   Downloaded rustls v0.13.1
[INFO] [stderr]   Downloaded syn v0.15.6
[INFO] [stderr]   Downloaded bufstream v0.1.3
[INFO] [stderr]   Downloaded encoding_rs v0.8.7
[INFO] [stderr]   Downloaded sct v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 1dc5e2201fbd3c0834b8c3ff306acce8f3193b90b933f466a00d7218aa059bb5
[INFO] running `Command { std: "docker" "start" "-a" "1dc5e2201fbd3c0834b8c3ff306acce8f3193b90b933f466a00d7218aa059bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dc5e2201fbd3c0834b8c3ff306acce8f3193b90b933f466a00d7218aa059bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dc5e2201fbd3c0834b8c3ff306acce8f3193b90b933f466a00d7218aa059bb5", kill_on_drop: false }`
[INFO] [stdout] 1dc5e2201fbd3c0834b8c3ff306acce8f3193b90b933f466a00d7218aa059bb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 3ac8971b3f2cafd27e0c30fdea9c1316ce2b7fa01767982146aefca0b8399c5c
[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" "3ac8971b3f2cafd27e0c30fdea9c1316ce2b7fa01767982146aefca0b8399c5c", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.5
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[INFO] [stderr]     Checking slab v0.4.1
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[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]    Compiling openssl v0.10.12
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking indexmap v1.0.1
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[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking string v0.1.1
[INFO] [stderr]     Checking utf8-ranges v1.0.1
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[INFO] [stderr]    Compiling memchr v2.1.0
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[INFO] [stderr]    Compiling ring v0.13.2
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[INFO] [stderr]    Compiling openssl-sys v0.9.36
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking encoding_rs v0.8.7
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[INFO] [stderr]     Checking phf v0.7.23
[INFO] [stderr]     Checking mime v0.3.9
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[INFO] [stderr]     Checking futures-cpupool v0.1.8
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[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking twox-hash v1.1.1
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]    Compiling syn v0.15.6
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking tokio-timer v0.2.7
[INFO] [stderr]     Checking tokio-current-thread v0.1.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.7
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[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 hmac v0.6.3
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio v0.1.9
[INFO] [stderr]     Checking h2 v0.1.12
[INFO] [stderr]     Checking sct v0.4.0
[INFO] [stderr]     Checking webpki v0.18.1
[INFO] [stderr]     Checking rustls v0.13.1
[INFO] [stderr]     Checking hyper v0.12.10
[INFO] [stderr]     Checking serde_json v1.0.31
[INFO] [stderr]     Checking serde_urlencoded v0.5.3
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking mysql_common v0.5.0
[INFO] [stderr]     Checking hyper-tls v0.3.0
[INFO] [stderr]     Checking reqwest v0.9.2
[INFO] [stderr]     Checking mysql v12.3.1
[INFO] [stderr]  Documenting d2l-sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/sync.rs:45:63
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn read(&self, user_base: &UserBase) -> Result<Option<(UserReadOrUpdate)>, SyncError> {
[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 24s
[INFO] running `Command { std: "docker" "inspect" "3ac8971b3f2cafd27e0c30fdea9c1316ce2b7fa01767982146aefca0b8399c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ac8971b3f2cafd27e0c30fdea9c1316ce2b7fa01767982146aefca0b8399c5c", kill_on_drop: false }`
[INFO] [stdout] 3ac8971b3f2cafd27e0c30fdea9c1316ce2b7fa01767982146aefca0b8399c5c