[INFO] updating cached repository katis/votebot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/katis/votebot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/katis/votebot" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/katis/votebot"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/katis/votebot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/katis/votebot" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/katis/votebot"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/katis/votebot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cafc0455da6cd158f1ee218e011b718e7c2ca6f2
[INFO] sha for GitHub repo katis/votebot: cafc0455da6cd158f1ee218e011b718e7c2ca6f2
[INFO] validating manifest of katis/votebot on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of katis/votebot on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing katis/votebot
[INFO] finished frobbing katis/votebot
[INFO] frobbed toml for katis/votebot written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/katis/votebot/Cargo.toml
[INFO] started frobbing katis/votebot
[INFO] finished frobbing katis/votebot
[INFO] frobbed toml for katis/votebot written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/katis/votebot/Cargo.toml
[INFO] crate katis/votebot already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking katis/votebot against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/katis/votebot:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 338464e5378e0c2512676046e2b1aa65ffa435bf916b98cd7041cfe79e068802
[INFO] running `"docker" "start" "-a" "338464e5378e0c2512676046e2b1aa65ffa435bf916b98cd7041cfe79e068802"`
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]     Checking miniz_oxide_c_api v0.2.2
[INFO] [stderr]    Compiling syn v0.15.37
[INFO] [stderr]     Checking openssl v0.10.23
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking h2 v0.1.25
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking cookie v0.11.1
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking hyper v0.12.31
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]    Compiling devise_core v0.2.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling diesel_derives v1.4.0
[INFO] [stderr]    Compiling snafu-derive v0.4.1
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling devise_codegen v0.2.0
[INFO] [stderr]    Compiling pear v0.1.2
[INFO] [stderr]    Compiling rocket_http v0.4.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling devise v0.2.0
[INFO] [stderr]     Checking dotenv v0.14.1
[INFO] [stderr]     Checking snafu v0.4.1
[INFO] [stderr]    Compiling rocket_codegen v0.4.2
[INFO] [stderr]     Checking serde v1.0.92
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking diesel v1.4.2
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking handlebars v1.1.0
[INFO] [stderr]     Checking rocket v0.4.2
[INFO] [stderr]     Checking reqwest v0.9.18
[INFO] [stderr]     Checking rocket_contrib v0.4.2
[INFO] [stderr]     Checking votebot v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `poll`
[INFO] [stderr]   --> src/server.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let poll = db_service.find_poll(id.into_inner())?;
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_poll`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_poll`
[INFO] [stderr]    --> src/db.rs:141:5
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub fn update_poll(&self, id: Uuid, poll: UpdatedPoll) -> Result<Poll> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `ok`
[INFO] [stderr]    --> src/slack.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     ok: bool,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `user`
[INFO] [stderr]    --> src/slack.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     user: UserResponse,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]    --> src/slack.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     id: String,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `poll`
[INFO] [stderr]   --> src/server.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let poll = db_service.find_poll(id.into_inner())?;
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_poll`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_poll`
[INFO] [stderr]    --> src/db.rs:141:5
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub fn update_poll(&self, id: Uuid, poll: UpdatedPoll) -> Result<Poll> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `ok`
[INFO] [stderr]    --> src/slack.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     ok: bool,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `user`
[INFO] [stderr]    --> src/slack.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     user: UserResponse,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]    --> src/slack.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     id: String,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 20s
[INFO] running `"docker" "inspect" "338464e5378e0c2512676046e2b1aa65ffa435bf916b98cd7041cfe79e068802"`
[INFO] running `"docker" "rm" "-f" "338464e5378e0c2512676046e2b1aa65ffa435bf916b98cd7041cfe79e068802"`
[INFO] [stdout] 338464e5378e0c2512676046e2b1aa65ffa435bf916b98cd7041cfe79e068802