[INFO] updating cached repository https://github.com/txstate-etc/d2l-sync
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 51e65dd0471c7fbb56c64a4659fe9ff80e5dd921
[INFO] checking txstate-etc/d2l-sync against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftxstate-etc%2Fd2l-sync" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/txstate-etc/d2l-sync on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-4/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 `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0382637747cc1c866bc34cae98d6515787a0e008d2e1db3bcb894efb7b268919
[INFO] running `"docker" "start" "-a" "0382637747cc1c866bc34cae98d6515787a0e008d2e1db3bcb894efb7b268919"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] Compiling version_check v0.1.5
[INFO] [stderr] Checking libc v0.2.43
[INFO] [stderr] Checking cfg-if v0.1.5
[INFO] [stderr] Checking byteorder v1.2.6
[INFO] [stderr] Compiling cc v1.0.25
[INFO] [stderr] Checking crossbeam-utils v0.5.0
[INFO] [stderr] Checking slab v0.4.1
[INFO] [stderr] Checking stable_deref_trait v1.1.1
[INFO] [stderr] Checking lazycell v1.2.0
[INFO] [stderr] Compiling pkg-config v0.3.14
[INFO] [stderr] Checking itoa v0.4.3
[INFO] [stderr] Compiling typenum v1.10.0
[INFO] [stderr] Compiling num-traits v0.2.6
[INFO] [stderr] Compiling siphasher v0.2.3
[INFO] [stderr] Compiling serde v1.0.79
[INFO] [stderr] Checking fnv v1.0.6
[INFO] [stderr] Checking matches v0.1.8
[INFO] [stderr] Compiling ryu v0.2.6
[INFO] [stderr] Checking bitflags v1.0.4
[INFO] [stderr] Compiling proc-macro2 v0.4.19
[INFO] [stderr] Compiling openssl v0.10.12
[INFO] [stderr] Checking foreign-types-shared v0.1.1
[INFO] [stderr] Checking string v0.1.1
[INFO] [stderr] Compiling native-tls v0.2.1
[INFO] [stderr] Checking try-lock v0.2.2
[INFO] [stderr] Checking indexmap v1.0.1
[INFO] [stderr] Checking utf8-ranges v1.0.1
[INFO] [stderr] Checking openssl-probe v0.1.2
[INFO] [stderr] Checking uuid v0.5.1
[INFO] [stderr] Checking sha1 v0.2.0
[INFO] [stderr] Checking constant_time_eq v0.1.3
[INFO] [stderr] Checking bitflags v0.9.1
[INFO] [stderr] Checking lazy_static v0.2.11
[INFO] [stderr] Checking smallvec v0.4.5
[INFO] [stderr] Checking unreachable v1.0.0
[INFO] [stderr] Checking log v0.4.5
[INFO] [stderr] Checking encoding_rs v0.8.7
[INFO] [stderr] Checking owning_ref v0.3.3
[INFO] [stderr] Checking unicode-bidi v0.3.4
[INFO] [stderr] Checking regex-syntax v0.5.6
[INFO] [stderr] Checking foreign-types v0.3.2
[INFO] [stderr] Checking base64 v0.9.3
[INFO] [stderr] Compiling rand v0.5.5
[INFO] [stderr] Checking tokio-current-thread v0.1.2
[INFO] [stderr] Checking tokio-timer v0.2.7
[INFO] [stderr] Compiling lazy_static v1.1.0
[INFO] [stderr] Compiling unicase v1.4.2
[INFO] [stderr] Compiling memchr v2.1.0
[INFO] [stderr] Compiling unicase v2.1.0
[INFO] [stderr] Checking iovec v0.1.2
[INFO] [stderr] Checking net2 v0.2.33
[INFO] [stderr] Checking num_cpus v1.8.0
[INFO] [stderr] Checking time v0.1.40
[INFO] [stderr] Checking nix v0.9.0
[INFO] [stderr] Checking smallvec v0.6.5
[INFO] [stderr] Compiling parking_lot_core v0.3.1
[INFO] [stderr] Checking want v0.0.6
[INFO] [stderr] Checking lock_api v0.1.4
[INFO] [stderr] Checking bytes v0.4.10
[INFO] [stderr] Checking idna v0.1.5
[INFO] [stderr] Checking futures-cpupool v0.1.8
[INFO] [stderr] Checking libflate v0.1.18
[INFO] [stderr] Checking mio v0.6.16
[INFO] [stderr] Compiling phf_shared v0.7.23
[INFO] [stderr] Checking tokio-io v0.1.9
[INFO] [stderr] Checking http v0.1.13
[INFO] [stderr] Checking crossbeam-epoch v0.5.2
[INFO] [stderr] Checking thread_local v0.3.6
[INFO] [stderr] Compiling quote v0.6.8
[INFO] [stderr] Checking url v1.7.1
[INFO] [stderr] Compiling phf_generator v0.7.23
[INFO] [stderr] Checking aho-corasick v0.6.8
[INFO] [stderr] Checking mime v0.3.9
[INFO] [stderr] Compiling openssl-sys v0.9.36
[INFO] [stderr] Compiling ring v0.13.2
[INFO] [stderr] Checking twox-hash v1.1.1
[INFO] [stderr] Checking uuid v0.7.1
[INFO] [stderr] Checking phf v0.7.23
[INFO] [stderr] Checking num-integer v0.1.39
[INFO] [stderr] Checking atoi v0.2.3
[INFO] [stderr] Checking generic-array v0.9.0
[INFO] [stderr] Compiling syn v0.15.6
[INFO] [stderr] Checking mio-uds v0.6.7
[INFO] [stderr] Compiling phf_codegen v0.7.23
[INFO] [stderr] Checking crossbeam-deque v0.6.1
[INFO] [stderr] Checking tokio-codec v0.1.1
[INFO] [stderr] Checking chrono v0.4.6
[INFO] [stderr] Checking parking_lot v0.6.4
[INFO] [stderr] Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr] Checking tokio-threadpool v0.1.7
[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-reactor v0.1.6
[INFO] [stderr] Checking regex v0.2.11
[INFO] [stderr] Checking tokio-fs v0.1.3
[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] Compiling serde_derive v1.0.79
[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] 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] Checking d2l-sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr] --> src/main.rs:75:1
[INFO] [stderr] |
[INFO] [stderr] 75 | /// SOURCE environment variable contains
[INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr] |
[INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr]
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr] --> src/main.rs:76:1
[INFO] [stderr] |
[INFO] [stderr] 76 | /// the "warehouse" connection uri.
[INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr] |
[INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr]
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr] --> src/main.rs:77:1
[INFO] [stderr] |
[INFO] [stderr] 77 | /// This database will be used to read
[INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr] |
[INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr]
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr] --> src/main.rs:78:1
[INFO] [stderr] |
[INFO] [stderr] 78 | /// journal entries to find users that
[INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr] |
[INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr]
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr] --> src/main.rs:79:1
[INFO] [stderr] |
[INFO] [stderr] 79 | /// need to be updated as well as pull
[INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr] |
[INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr]
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr] --> src/main.rs:80:1
[INFO] [stderr] |
[INFO] [stderr] 80 | /// user information used to sync d2l
[INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr] |
[INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr]
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr] --> src/main.rs:81:1
[INFO] [stderr] |
[INFO] [stderr] 81 | /// Example: "mysql://usr:pwd@host:port/database?options"
[INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr] |
[INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr]
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr] --> src/sync.rs:45:63
[INFO] [stderr] |
[INFO] [stderr] 45 | pub fn read(&self, user_base: &UserBase) -> Result