Dec 17 21:19:17.251 INFO checking knknkn1162/rust_server_test against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 21:19:17.251 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/knknkn1162/rust_server_test:/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 17 21:19:17.428 INFO [stdout] 0fac5aabc2e68be5d815d914cd75597d1b9e595de3ee7897c12a771832f22b44
Dec 17 21:19:17.434 INFO running `"docker" "start" "-a" "0fac5aabc2e68be5d815d914cd75597d1b9e595de3ee7897c12a771832f22b44"`
Dec 17 21:19:18.308 INFO [stderr]     Checking env_logger v0.4.3
Dec 17 21:19:18.706 INFO [stderr]     Checking simple_line v0.1.0 (/opt/crater/workdir)
Dec 17 21:19:19.285 INFO [stderr] warning: unused import: `Future`
Dec 17 21:19:19.285 INFO [stderr]   --> src/main.rs:16:23
Dec 17 21:19:19.285 INFO [stderr]    |
Dec 17 21:19:19.285 INFO [stderr] 16 | use futures::{future, Future};
Dec 17 21:19:19.285 INFO [stderr]    |                       ^^^^^^
Dec 17 21:19:19.285 INFO [stderr]    |
Dec 17 21:19:19.292 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 21:19:19.292 INFO [stderr] 
Dec 17 21:19:19.300 INFO [stderr] warning: unused import: `Future`
Dec 17 21:19:19.300 INFO [stderr]   --> src/main.rs:16:23
Dec 17 21:19:19.300 INFO [stderr]    |
Dec 17 21:19:19.300 INFO [stderr] 16 | use futures::{future, Future};
Dec 17 21:19:19.300 INFO [stderr]    |                       ^^^^^^
Dec 17 21:19:19.300 INFO [stderr]    |
Dec 17 21:19:19.300 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 21:19:19.300 INFO [stderr] 
Dec 17 21:19:19.316 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:19:19.316 INFO [stderr]    --> src/main.rs:151:9
Dec 17 21:19:19.316 INFO [stderr]     |
Dec 17 21:19:19.316 INFO [stderr] 151 |     let mut server = TcpServer::new(Http, addr);
Dec 17 21:19:19.316 INFO [stderr]     |         ----^^^^^^
Dec 17 21:19:19.316 INFO [stderr]     |         |
Dec 17 21:19:19.316 INFO [stderr]     |         help: remove this `mut`
Dec 17 21:19:19.316 INFO [stderr]     |
Dec 17 21:19:19.316 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 21:19:19.316 INFO [stderr] 
Dec 17 21:19:19.360 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:19:19.360 INFO [stderr]    --> src/main.rs:151:9
Dec 17 21:19:19.360 INFO [stderr]     |
Dec 17 21:19:19.360 INFO [stderr] 151 |     let mut server = TcpServer::new(Http, addr);
Dec 17 21:19:19.360 INFO [stderr]     |         ----^^^^^^
Dec 17 21:19:19.360 INFO [stderr]     |         |
Dec 17 21:19:19.360 INFO [stderr]     |         help: remove this `mut`
Dec 17 21:19:19.360 INFO [stderr]     |
Dec 17 21:19:19.360 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 21:19:19.360 INFO [stderr] 
Dec 17 21:19:19.432 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
Dec 17 21:19:19.837 INFO running `"docker" "inspect" "0fac5aabc2e68be5d815d914cd75597d1b9e595de3ee7897c12a771832f22b44"`
Dec 17 21:19:19.982 INFO running `"docker" "rm" "-f" "0fac5aabc2e68be5d815d914cd75597d1b9e595de3ee7897c12a771832f22b44"`
Dec 17 21:19:20.115 INFO [stdout] 0fac5aabc2e68be5d815d914cd75597d1b9e595de3ee7897c12a771832f22b44