Dec 19 12:56:17.385 INFO checking mattico/hydration-bot against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:56:17.385 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/mattico/hydration-bot:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:56:17.850 INFO [stdout] 51256e1e2a252c5acd170a18b3b5d9830ba16f52fded1d8648fe39ac919f7044
Dec 19 12:56:17.852 INFO running `"docker" "start" "-a" "51256e1e2a252c5acd170a18b3b5d9830ba16f52fded1d8648fe39ac919f7044"`
Dec 19 12:56:19.876 INFO [stderr]    Compiling proc-macro2 v0.4.17
Dec 19 12:56:19.877 INFO [stderr]    Compiling miniz-sys v0.1.10
Dec 19 12:56:19.878 INFO [stderr]     Checking base64 v0.8.0
Dec 19 12:56:19.879 INFO [stderr]     Checking threadpool v1.7.1
Dec 19 12:56:19.879 INFO [stderr]     Checking serde_json v1.0.26
Dec 19 12:56:19.879 INFO [stderr]     Checking chrono v0.4.6
Dec 19 12:56:19.880 INFO [stderr]     Checking parking_lot v0.5.5
Dec 19 12:56:19.880 INFO [stderr]     Checking regex v0.2.11
Dec 19 12:56:23.016 INFO [stderr]     Checking hyper-native-tls v0.2.4
Dec 19 12:56:23.486 INFO [stderr]    Compiling mime_guess v1.8.6
Dec 19 12:56:23.906 INFO [stderr]     Checking evzht9h3nznqzwl v0.0.3
Dec 19 12:56:29.230 INFO [stderr]     Checking flate2 v1.0.2
Dec 19 12:56:30.228 INFO [stderr]     Checking env_logger v0.4.3
Dec 19 12:56:33.136 INFO [stderr]    Compiling quote v0.6.8
Dec 19 12:56:34.741 INFO [stderr]     Checking multipart v0.13.6
Dec 19 12:56:34.794 INFO [stderr]    Compiling syn v0.14.9
Dec 19 12:56:41.461 INFO [stderr]    Compiling serde_derive v1.0.76
Dec 19 12:56:51.132 INFO [stderr]     Checking serenity v0.5.8
Dec 19 12:57:05.020 INFO [stderr]     Checking hydration-bot v0.1.0 (/opt/crater/workdir)
Dec 19 12:57:07.092 INFO [stderr] warning: field is never used: `drated_users`
Dec 19 12:57:07.092 INFO [stderr]   --> src/main.rs:36:5
Dec 19 12:57:07.092 INFO [stderr]    |
Dec 19 12:57:07.092 INFO [stderr] 36 |     drated_users: Mutex<HashSet<UserId>>,
Dec 19 12:57:07.092 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:57:07.092 INFO [stderr]    |
Dec 19 12:57:07.092 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 12:57:07.092 INFO [stderr] 
Dec 19 12:57:07.264 INFO [stderr] warning: field is never used: `drated_users`
Dec 19 12:57:07.264 INFO [stderr]   --> src/main.rs:36:5
Dec 19 12:57:07.264 INFO [stderr]    |
Dec 19 12:57:07.264 INFO [stderr] 36 |     drated_users: Mutex<HashSet<UserId>>,
Dec 19 12:57:07.264 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:57:07.264 INFO [stderr]    |
Dec 19 12:57:07.264 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 12:57:07.264 INFO [stderr] 
Dec 19 12:57:07.300 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.69s
Dec 19 12:57:08.083 INFO running `"docker" "inspect" "51256e1e2a252c5acd170a18b3b5d9830ba16f52fded1d8648fe39ac919f7044"`
Dec 19 12:57:08.238 INFO running `"docker" "rm" "-f" "51256e1e2a252c5acd170a18b3b5d9830ba16f52fded1d8648fe39ac919f7044"`
Dec 19 12:57:08.369 INFO [stdout] 51256e1e2a252c5acd170a18b3b5d9830ba16f52fded1d8648fe39ac919f7044