Dec 11 14:11:31.042 INFO checking mardiros/janeiro against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 14:11:31.042 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 14:11:31.613 INFO [stdout] 082b4b735feb421ae6c684c8867b845117d5272b7fb25206ccaa267fbbf22bc8
Dec 11 14:11:31.615 INFO running `"docker" "start" "-a" "082b4b735feb421ae6c684c8867b845117d5272b7fb25206ccaa267fbbf22bc8"`
Dec 11 14:11:33.068 INFO [stderr] usermod: no changes
Dec 11 14:11:33.206 INFO [stderr]     Checking janeiro v0.0.1 (/source)
Dec 11 14:11:34.378 INFO [stderr] warning: variable does not need to be mutable
Dec 11 14:11:34.378 INFO [stderr]    --> src/rio.rs:353:17
Dec 11 14:11:34.378 INFO [stderr]     |
Dec 11 14:11:34.378 INFO [stderr] 353 |             let mut client = &mut self.connections[token].client_mut();
Dec 11 14:11:34.378 INFO [stderr]     |                 ----^^^^^^
Dec 11 14:11:34.378 INFO [stderr]     |                 |
Dec 11 14:11:34.378 INFO [stderr]     |                 help: remove this `mut`
Dec 11 14:11:34.378 INFO [stderr]     |
Dec 11 14:11:34.378 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 14:11:34.378 INFO [stderr] 
Dec 11 14:11:34.772 INFO [stderr] warning: variable does not need to be mutable
Dec 11 14:11:34.772 INFO [stderr]    --> src/rio.rs:353:17
Dec 11 14:11:34.772 INFO [stderr]     |
Dec 11 14:11:34.772 INFO [stderr] 353 |             let mut client = &mut self.connections[token].client_mut();
Dec 11 14:11:34.772 INFO [stderr]     |                 ----^^^^^^
Dec 11 14:11:34.772 INFO [stderr]     |                 |
Dec 11 14:11:34.772 INFO [stderr]     |                 help: remove this `mut`
Dec 11 14:11:34.772 INFO [stderr]     |
Dec 11 14:11:34.772 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 14:11:34.772 INFO [stderr] 
Dec 11 14:11:37.220 INFO [stderr] warning: unused import: `std::str`
Dec 11 14:11:37.220 INFO [stderr]  --> tests/test_echo_server.rs:7:5
Dec 11 14:11:37.220 INFO [stderr]   |
Dec 11 14:11:37.220 INFO [stderr] 7 | use std::str;
Dec 11 14:11:37.220 INFO [stderr]   |     ^^^^^^^^
Dec 11 14:11:37.220 INFO [stderr]   |
Dec 11 14:11:37.220 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 14:11:37.220 INFO [stderr] 
Dec 11 14:11:37.352 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.25s
Dec 11 14:11:37.361 INFO [stderr] su: No module specific data is present
Dec 11 14:11:39.092 INFO running `"docker" "inspect" "082b4b735feb421ae6c684c8867b845117d5272b7fb25206ccaa267fbbf22bc8"`
Dec 11 14:11:39.448 INFO running `"docker" "rm" "-f" "082b4b735feb421ae6c684c8867b845117d5272b7fb25206ccaa267fbbf22bc8"`
Dec 11 14:11:39.792 INFO [stdout] 082b4b735feb421ae6c684c8867b845117d5272b7fb25206ccaa267fbbf22bc8