Dec 18 05:19:16.636 INFO checking Swoorup/rtasks against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 05:19:16.636 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/Swoorup/rtasks:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:19:17.156 INFO [stdout] 39eaf8fadf7138117b61888c1b13cc2dcf5747ba46fd88d8bfb83ad88eeb18d6
Dec 18 05:19:17.167 INFO running `"docker" "start" "-a" "39eaf8fadf7138117b61888c1b13cc2dcf5747ba46fd88d8bfb83ad88eeb18d6"`
Dec 18 05:19:18.582 INFO [stderr]     Checking want v0.0.6
Dec 18 05:19:18.585 INFO [stderr]     Checking tokio-io v0.1.9
Dec 18 05:19:18.586 INFO [stderr]     Checking tokio-threadpool v0.1.7
Dec 18 05:19:20.420 INFO [stderr]     Checking tokio-reactor v0.1.6
Dec 18 05:19:20.420 INFO [stderr]     Checking tokio-codec v0.1.1
Dec 18 05:19:20.420 INFO [stderr]     Checking tokio-async-await v0.1.4
Dec 18 05:19:20.420 INFO [stderr]     Checking h2 v0.1.12
Dec 18 05:19:20.496 INFO [stderr]     Checking tokio-fs v0.1.3
Dec 18 05:19:22.209 INFO [stderr]     Checking tokio-udp v0.1.2
Dec 18 05:19:22.209 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 18 05:19:22.209 INFO [stderr]     Checking tokio-uds v0.2.2
Dec 18 05:19:24.732 INFO [stderr]     Checking tokio v0.1.11
Dec 18 05:19:26.800 INFO [stderr]     Checking hyper v0.12.11
Dec 18 05:19:30.936 INFO [stderr]     Checking ctr_test v0.1.0 (/opt/crater/workdir)
Dec 18 05:19:32.936 INFO [stderr] warning: unreachable expression
Dec 18 05:19:32.936 INFO [stderr]   --> src/echo_client.rs:43:5
Dec 18 05:19:32.936 INFO [stderr]    |
Dec 18 05:19:32.936 INFO [stderr] 43 |     Ok(())
Dec 18 05:19:32.936 INFO [stderr]    |     ^^^^^^
Dec 18 05:19:32.936 INFO [stderr]    |
Dec 18 05:19:32.936 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 18 05:19:32.936 INFO [stderr] 
Dec 18 05:19:33.022 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:19:33.022 INFO [stderr]   --> src/echo_client.rs:30:13
Dec 18 05:19:33.022 INFO [stderr]    |
Dec 18 05:19:33.022 INFO [stderr] 30 |         let mut input = input.replace("\n", "\0");
Dec 18 05:19:33.022 INFO [stderr]    |             ----^^^^^
Dec 18 05:19:33.022 INFO [stderr]    |             |
Dec 18 05:19:33.022 INFO [stderr]    |             help: remove this `mut`
Dec 18 05:19:33.057 INFO [stderr]    |
Dec 18 05:19:33.057 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 05:19:33.057 INFO [stderr] 
Dec 18 05:19:33.916 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:19:33.916 INFO [stderr]   --> src/chat.rs:64:13
Dec 18 05:19:33.916 INFO [stderr]    |
Dec 18 05:19:33.916 INFO [stderr] 64 |             await!(lines_tx.send_async(line));
Dec 18 05:19:33.916 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:19:33.916 INFO [stderr]    |
Dec 18 05:19:33.916 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 05:19:33.916 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:19:33.916 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 05:19:33.916 INFO [stderr] 
Dec 18 05:19:34.068 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:19:34.068 INFO [stderr]   --> src/chat.rs:64:13
Dec 18 05:19:34.068 INFO [stderr]    |
Dec 18 05:19:34.068 INFO [stderr] 64 |             await!(lines_tx.send_async(line));
Dec 18 05:19:34.068 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:19:34.068 INFO [stderr]    |
Dec 18 05:19:34.068 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 05:19:34.068 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:19:34.068 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 05:19:34.068 INFO [stderr] 
Dec 18 05:19:34.500 INFO [stderr] warning: unreachable expression
Dec 18 05:19:34.500 INFO [stderr]   --> src/echo_client.rs:43:5
Dec 18 05:19:34.500 INFO [stderr]    |
Dec 18 05:19:34.500 INFO [stderr] 43 |     Ok(())
Dec 18 05:19:34.500 INFO [stderr]    |     ^^^^^^
Dec 18 05:19:34.500 INFO [stderr]    |
Dec 18 05:19:34.500 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 18 05:19:34.500 INFO [stderr] 
Dec 18 05:19:34.532 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:19:34.532 INFO [stderr]   --> src/echo_client.rs:30:13
Dec 18 05:19:34.532 INFO [stderr]    |
Dec 18 05:19:34.532 INFO [stderr] 30 |         let mut input = input.replace("\n", "\0");
Dec 18 05:19:34.532 INFO [stderr]    |             ----^^^^^
Dec 18 05:19:34.532 INFO [stderr]    |             |
Dec 18 05:19:34.532 INFO [stderr]    |             help: remove this `mut`
Dec 18 05:19:34.532 INFO [stderr]    |
Dec 18 05:19:34.532 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 05:19:34.532 INFO [stderr] 
Dec 18 05:19:34.600 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.14s
Dec 18 05:19:35.630 INFO running `"docker" "inspect" "39eaf8fadf7138117b61888c1b13cc2dcf5747ba46fd88d8bfb83ad88eeb18d6"`
Dec 18 05:19:35.881 INFO running `"docker" "rm" "-f" "39eaf8fadf7138117b61888c1b13cc2dcf5747ba46fd88d8bfb83ad88eeb18d6"`
Dec 18 05:19:36.214 INFO [stdout] 39eaf8fadf7138117b61888c1b13cc2dcf5747ba46fd88d8bfb83ad88eeb18d6