Dec 18 12:17:12.905 INFO checking rix-0.3.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 12:17:12.906 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/rix/0.3.0:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 12:17:13.380 INFO [stdout] f0d9054d3f245bd71b7481386ac09053f06221b6fb4de1b8144bdcc701c1cb11
Dec 18 12:17:13.388 INFO running `"docker" "start" "-a" "f0d9054d3f245bd71b7481386ac09053f06221b6fb4de1b8144bdcc701c1cb11"`
Dec 18 12:17:15.452 INFO [stderr]     Checking rix v0.3.0 (/opt/crater/workdir)
Dec 18 12:17:18.156 INFO [stderr] warning: unused import: `error`
Dec 18 12:17:18.156 INFO [stderr]  --> src/client/sync.rs:6:5
Dec 18 12:17:18.156 INFO [stderr]   |
Dec 18 12:17:18.156 INFO [stderr] 6 | use error;
Dec 18 12:17:18.156 INFO [stderr]   |     ^^^^^
Dec 18 12:17:18.156 INFO [stderr]   |
Dec 18 12:17:18.156 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 12:17:18.156 INFO [stderr] 
Dec 18 12:17:18.172 INFO [stderr] warning: unused import: `serde_json`
Dec 18 12:17:18.172 INFO [stderr]  --> src/client/message.rs:3:5
Dec 18 12:17:18.172 INFO [stderr]   |
Dec 18 12:17:18.172 INFO [stderr] 3 | use serde_json;
Dec 18 12:17:18.172 INFO [stderr]   |     ^^^^^^^^^^
Dec 18 12:17:18.172 INFO [stderr] 
Dec 18 12:17:18.172 INFO [stderr] warning: unused import: `std`
Dec 18 12:17:18.172 INFO [stderr]  --> src/client/message.rs:7:5
Dec 18 12:17:18.172 INFO [stderr]   |
Dec 18 12:17:18.172 INFO [stderr] 7 | use std;
Dec 18 12:17:18.172 INFO [stderr]   |     ^^^
Dec 18 12:17:18.172 INFO [stderr] 
Dec 18 12:17:18.172 INFO [stderr] warning: unused import: `error`
Dec 18 12:17:18.172 INFO [stderr]  --> src/client/message.rs:8:5
Dec 18 12:17:18.172 INFO [stderr]   |
Dec 18 12:17:18.172 INFO [stderr] 8 | use error;
Dec 18 12:17:18.172 INFO [stderr]   |     ^^^^^
Dec 18 12:17:18.172 INFO [stderr] 
Dec 18 12:17:18.264 INFO [stderr] warning: unused import: `error`
Dec 18 12:17:18.264 INFO [stderr]  --> src/client/sync.rs:6:5
Dec 18 12:17:18.264 INFO [stderr]   |
Dec 18 12:17:18.265 INFO [stderr] 6 | use error;
Dec 18 12:17:18.265 INFO [stderr]   |     ^^^^^
Dec 18 12:17:18.265 INFO [stderr]   |
Dec 18 12:17:18.265 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 12:17:18.268 INFO [stderr] 
Dec 18 12:17:18.268 INFO [stderr] warning: unused import: `serde_json`
Dec 18 12:17:18.268 INFO [stderr]  --> src/client/message.rs:3:5
Dec 18 12:17:18.268 INFO [stderr]   |
Dec 18 12:17:18.268 INFO [stderr] 3 | use serde_json;
Dec 18 12:17:18.268 INFO [stderr]   |     ^^^^^^^^^^
Dec 18 12:17:18.268 INFO [stderr] 
Dec 18 12:17:18.268 INFO [stderr] warning: unused import: `std`
Dec 18 12:17:18.268 INFO [stderr]  --> src/client/message.rs:7:5
Dec 18 12:17:18.268 INFO [stderr]   |
Dec 18 12:17:18.268 INFO [stderr] 7 | use std;
Dec 18 12:17:18.268 INFO [stderr]   |     ^^^
Dec 18 12:17:18.268 INFO [stderr] 
Dec 18 12:17:18.268 INFO [stderr] warning: unused import: `error`
Dec 18 12:17:18.268 INFO [stderr]  --> src/client/message.rs:8:5
Dec 18 12:17:18.268 INFO [stderr]   |
Dec 18 12:17:18.268 INFO [stderr] 8 | use error;
Dec 18 12:17:18.268 INFO [stderr]   |     ^^^^^
Dec 18 12:17:18.268 INFO [stderr] 
Dec 18 12:17:18.902 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:17:18.902 INFO [stderr]    --> src/client/sync.rs:103:9
Dec 18 12:17:18.903 INFO [stderr]     |
Dec 18 12:17:18.903 INFO [stderr] 103 |     let mut request = hyper::Request::new(hyper::Method::Get,
Dec 18 12:17:18.903 INFO [stderr]     |         ----^^^^^^^
Dec 18 12:17:18.903 INFO [stderr]     |         |
Dec 18 12:17:18.903 INFO [stderr]     |         help: remove this `mut`
Dec 18 12:17:18.903 INFO [stderr]     |
Dec 18 12:17:18.903 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 12:17:18.903 INFO [stderr] 
Dec 18 12:17:19.032 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:17:19.032 INFO [stderr]    --> src/client/sync.rs:103:9
Dec 18 12:17:19.032 INFO [stderr]     |
Dec 18 12:17:19.032 INFO [stderr] 103 |     let mut request = hyper::Request::new(hyper::Method::Get,
Dec 18 12:17:19.032 INFO [stderr]     |         ----^^^^^^^
Dec 18 12:17:19.032 INFO [stderr]     |         |
Dec 18 12:17:19.032 INFO [stderr]     |         help: remove this `mut`
Dec 18 12:17:19.032 INFO [stderr]     |
Dec 18 12:17:19.032 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 12:17:19.032 INFO [stderr] 
Dec 18 12:17:21.744 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.56s
Dec 18 12:17:22.334 INFO running `"docker" "inspect" "f0d9054d3f245bd71b7481386ac09053f06221b6fb4de1b8144bdcc701c1cb11"`
Dec 18 12:17:22.553 INFO running `"docker" "rm" "-f" "f0d9054d3f245bd71b7481386ac09053f06221b6fb4de1b8144bdcc701c1cb11"`
Dec 18 12:17:22.751 INFO [stdout] f0d9054d3f245bd71b7481386ac09053f06221b6fb4de1b8144bdcc701c1cb11