Dec 19 13:09:13.153 INFO checking mardiros/janeiro against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 13:09:13.153 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/mardiros/janeiro:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 13:09:13.692 INFO [stdout] 0388cf16da2885db289cdb6fa4c4f9164045f4c85dd89895a29b59a15b75a3c3
Dec 19 13:09:13.694 INFO running `"docker" "start" "-a" "0388cf16da2885db289cdb6fa4c4f9164045f4c85dd89895a29b59a15b75a3c3"`
Dec 19 13:09:15.511 INFO [stderr]     Checking net2 v0.2.26
Dec 19 13:09:15.511 INFO [stderr]     Checking nix v0.7.0
Dec 19 13:09:19.236 INFO [stderr]     Checking mio v0.6.1
Dec 19 13:09:20.429 INFO [stderr]     Checking janeiro v0.0.1 (/opt/crater/workdir)
Dec 19 13:09:21.064 INFO [stderr] warning: variable does not need to be mutable
Dec 19 13:09:21.064 INFO [stderr]    --> src/rio.rs:353:17
Dec 19 13:09:21.064 INFO [stderr]     |
Dec 19 13:09:21.064 INFO [stderr] 353 |             let mut client = &mut self.connections[token].client_mut();
Dec 19 13:09:21.064 INFO [stderr]     |                 ----^^^^^^
Dec 19 13:09:21.064 INFO [stderr]     |                 |
Dec 19 13:09:21.064 INFO [stderr]     |                 help: remove this `mut`
Dec 19 13:09:21.064 INFO [stderr]     |
Dec 19 13:09:21.064 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 13:09:21.064 INFO [stderr] 
Dec 19 13:09:21.140 INFO [stderr] warning: variable does not need to be mutable
Dec 19 13:09:21.140 INFO [stderr]    --> src/rio.rs:353:17
Dec 19 13:09:21.140 INFO [stderr]     |
Dec 19 13:09:21.140 INFO [stderr] 353 |             let mut client = &mut self.connections[token].client_mut();
Dec 19 13:09:21.140 INFO [stderr]     |                 ----^^^^^^
Dec 19 13:09:21.140 INFO [stderr]     |                 |
Dec 19 13:09:21.140 INFO [stderr]     |                 help: remove this `mut`
Dec 19 13:09:21.140 INFO [stderr]     |
Dec 19 13:09:21.140 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 13:09:21.140 INFO [stderr] 
Dec 19 13:09:22.180 INFO [stderr] warning: unused import: `std::str`
Dec 19 13:09:22.180 INFO [stderr]  --> tests/test_echo_server.rs:7:5
Dec 19 13:09:22.180 INFO [stderr]   |
Dec 19 13:09:22.180 INFO [stderr] 7 | use std::str;
Dec 19 13:09:22.180 INFO [stderr]   |     ^^^^^^^^
Dec 19 13:09:22.180 INFO [stderr]   |
Dec 19 13:09:22.180 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:09:22.180 INFO [stderr] 
Dec 19 13:09:22.475 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.07s
Dec 19 13:09:23.830 INFO running `"docker" "inspect" "0388cf16da2885db289cdb6fa4c4f9164045f4c85dd89895a29b59a15b75a3c3"`
Dec 19 13:09:24.108 INFO running `"docker" "rm" "-f" "0388cf16da2885db289cdb6fa4c4f9164045f4c85dd89895a29b59a15b75a3c3"`
Dec 19 13:09:24.361 INFO [stdout] 0388cf16da2885db289cdb6fa4c4f9164045f4c85dd89895a29b59a15b75a3c3