Nov 28 10:55:36.451 INFO checking Swoorup/rtasks against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 10:55:36.452 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 10:55:36.863 INFO [stdout] 7d41b281d206ce426b63d200fadefb8fa19bed0896c4e2df72da12cd198bf3fc
Nov 28 10:55:36.864 INFO running `"docker" "start" "-a" "7d41b281d206ce426b63d200fadefb8fa19bed0896c4e2df72da12cd198bf3fc"`
Nov 28 10:55:37.974 INFO [stderr] usermod: no changes
Nov 28 10:55:38.300 INFO [stderr]     Checking want v0.0.6
Nov 28 10:55:38.300 INFO [stderr]     Checking tokio-io v0.1.9
Nov 28 10:55:38.303 INFO [stderr]     Checking tokio-threadpool v0.1.7
Nov 28 10:55:41.060 INFO [stderr]     Checking tokio-reactor v0.1.6
Nov 28 10:55:41.060 INFO [stderr]     Checking tokio-codec v0.1.1
Nov 28 10:55:41.060 INFO [stderr]     Checking tokio-async-await v0.1.4
Nov 28 10:55:41.060 INFO [stderr]     Checking h2 v0.1.12
Nov 28 10:55:42.704 INFO [stderr]     Checking tokio-fs v0.1.3
Nov 28 10:55:44.660 INFO [stderr]     Checking tokio-udp v0.1.2
Nov 28 10:55:44.664 INFO [stderr]     Checking tokio-tcp v0.1.2
Nov 28 10:55:44.665 INFO [stderr]     Checking tokio-uds v0.2.2
Nov 28 10:55:48.392 INFO [stderr]     Checking tokio v0.1.11
Nov 28 10:55:51.509 INFO [stderr]     Checking hyper v0.12.11
Nov 28 10:55:57.522 INFO [stderr]     Checking ctr_test v0.1.0 (/source)
Nov 28 10:56:13.193 INFO [stderr] warning: unreachable expression
Nov 28 10:56:13.193 INFO [stderr]   --> src/echo_client.rs:43:5
Nov 28 10:56:13.193 INFO [stderr]    |
Nov 28 10:56:13.193 INFO [stderr] 43 |     Ok(())
Nov 28 10:56:13.193 INFO [stderr]    |     ^^^^^^
Nov 28 10:56:13.193 INFO [stderr]    |
Nov 28 10:56:13.193 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Nov 28 10:56:13.193 INFO [stderr] 
Nov 28 10:56:13.232 INFO [stderr] warning: unreachable expression
Nov 28 10:56:13.232 INFO [stderr]   --> src/echo_client.rs:43:5
Nov 28 10:56:13.232 INFO [stderr]    |
Nov 28 10:56:13.232 INFO [stderr] 43 |     Ok(())
Nov 28 10:56:13.232 INFO [stderr]    |     ^^^^^^
Nov 28 10:56:13.232 INFO [stderr]    |
Nov 28 10:56:13.232 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Nov 28 10:56:13.232 INFO [stderr] 
Nov 28 10:56:13.356 INFO [stderr] warning: variable does not need to be mutable
Nov 28 10:56:13.356 INFO [stderr]   --> src/echo_client.rs:30:13
Nov 28 10:56:13.356 INFO [stderr]    |
Nov 28 10:56:13.356 INFO [stderr] 30 |         let mut input = input.replace("\n", "\0");
Nov 28 10:56:13.356 INFO [stderr]    |             ----^^^^^
Nov 28 10:56:13.356 INFO [stderr]    |             |
Nov 28 10:56:13.356 INFO [stderr]    |             help: remove this `mut`
Nov 28 10:56:13.356 INFO [stderr]    |
Nov 28 10:56:13.356 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 10:56:13.356 INFO [stderr] 
Nov 28 10:56:13.491 INFO [stderr] warning: variable does not need to be mutable
Nov 28 10:56:13.491 INFO [stderr]   --> src/echo_client.rs:30:13
Nov 28 10:56:13.491 INFO [stderr]    |
Nov 28 10:56:13.491 INFO [stderr] 30 |         let mut input = input.replace("\n", "\0");
Nov 28 10:56:13.491 INFO [stderr]    |             ----^^^^^
Nov 28 10:56:13.491 INFO [stderr]    |             |
Nov 28 10:56:13.491 INFO [stderr]    |             help: remove this `mut`
Nov 28 10:56:13.532 INFO [stderr]    |
Nov 28 10:56:13.532 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 10:56:13.532 INFO [stderr] 
Nov 28 10:56:13.556 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:56:13.556 INFO [stderr]   --> src/chat.rs:64:13
Nov 28 10:56:13.556 INFO [stderr]    |
Nov 28 10:56:13.556 INFO [stderr] 64 |             await!(lines_tx.send_async(line));
Nov 28 10:56:13.556 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:56:13.556 INFO [stderr]    |
Nov 28 10:56:13.556 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 10:56:13.556 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:56:13.556 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)
Nov 28 10:56:13.556 INFO [stderr] 
Nov 28 10:56:13.724 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:56:13.724 INFO [stderr]   --> src/chat.rs:64:13
Nov 28 10:56:13.724 INFO [stderr]    |
Nov 28 10:56:13.724 INFO [stderr] 64 |             await!(lines_tx.send_async(line));
Nov 28 10:56:13.724 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:56:13.724 INFO [stderr]    |
Nov 28 10:56:13.724 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 10:56:13.724 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:56:13.724 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)
Nov 28 10:56:13.724 INFO [stderr] 
Nov 28 10:56:14.608 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.60s
Nov 28 10:56:14.612 INFO [stderr] su: No module specific data is present
Nov 28 10:56:15.466 INFO running `"docker" "inspect" "7d41b281d206ce426b63d200fadefb8fa19bed0896c4e2df72da12cd198bf3fc"`
Nov 28 10:56:15.769 INFO running `"docker" "rm" "-f" "7d41b281d206ce426b63d200fadefb8fa19bed0896c4e2df72da12cd198bf3fc"`
Nov 28 10:56:16.184 INFO [stdout] 7d41b281d206ce426b63d200fadefb8fa19bed0896c4e2df72da12cd198bf3fc