Nov 30 08:27:59.701 INFO checking Swoorup/rtasks against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 08:27:59.701 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 08:27:59.994 INFO [stdout] 573cc9f63a633c60fc5f5be5636e1e0da8c71acd51fae88021f91799142c89c1
Nov 30 08:27:59.995 INFO running `"docker" "start" "-a" "573cc9f63a633c60fc5f5be5636e1e0da8c71acd51fae88021f91799142c89c1"`
Nov 30 08:28:00.705 INFO [stderr] usermod: no changes
Nov 30 08:28:00.908 INFO [stderr]     Checking futures v0.1.25
Nov 30 08:28:03.933 INFO [stderr]     Checking tokio-io v0.1.9
Nov 30 08:28:03.935 INFO [stderr]     Checking tokio-executor v0.1.5
Nov 30 08:28:03.964 INFO [stderr]     Checking futures-cpupool v0.1.8
Nov 30 08:28:03.966 INFO [stderr]     Checking want v0.0.6
Nov 30 08:28:05.726 INFO [stderr]     Checking tokio-threadpool v0.1.7
Nov 30 08:28:05.726 INFO [stderr]     Checking tokio-timer v0.2.7
Nov 30 08:28:05.726 INFO [stderr]     Checking tokio-current-thread v0.1.3
Nov 30 08:28:07.248 INFO [stderr]     Checking tokio-codec v0.1.1
Nov 30 08:28:07.248 INFO [stderr]     Checking tokio-reactor v0.1.6
Nov 30 08:28:07.248 INFO [stderr]     Checking tokio-async-await v0.1.4
Nov 30 08:28:07.248 INFO [stderr]     Checking h2 v0.1.12
Nov 30 08:28:11.325 INFO [stderr]     Checking tokio-fs v0.1.3
Nov 30 08:28:12.488 INFO [stderr]     Checking tokio-uds v0.2.2
Nov 30 08:28:12.489 INFO [stderr]     Checking tokio-udp v0.1.2
Nov 30 08:28:12.491 INFO [stderr]     Checking tokio-tcp v0.1.2
Nov 30 08:28:18.885 INFO [stderr]     Checking tokio v0.1.11
Nov 30 08:28:21.281 INFO [stderr]     Checking hyper v0.12.11
Nov 30 08:28:27.185 INFO [stderr]     Checking ctr_test v0.1.0 (/source)
Nov 30 08:28:39.015 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 08:28:39.015 INFO [stderr]   --> src/chat.rs:64:13
Nov 30 08:28:39.015 INFO [stderr]    |
Nov 30 08:28:39.015 INFO [stderr] 64 |             await!(lines_tx.send_async(line));
Nov 30 08:28:39.015 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:28:39.015 INFO [stderr]    |
Nov 30 08:28:39.015 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 08:28:39.015 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 08:28:39.015 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 30 08:28:39.015 INFO [stderr] 
Nov 30 08:28:40.068 INFO [stderr] warning: unreachable expression
Nov 30 08:28:40.068 INFO [stderr]   --> src/echo_client.rs:43:5
Nov 30 08:28:40.068 INFO [stderr]    |
Nov 30 08:28:40.068 INFO [stderr] 43 |     Ok(())
Nov 30 08:28:40.068 INFO [stderr]    |     ^^^^^^
Nov 30 08:28:40.069 INFO [stderr]    |
Nov 30 08:28:40.069 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Nov 30 08:28:40.069 INFO [stderr] 
Nov 30 08:28:40.177 INFO [stderr] warning: variable does not need to be mutable
Nov 30 08:28:40.177 INFO [stderr]   --> src/echo_client.rs:30:13
Nov 30 08:28:40.177 INFO [stderr]    |
Nov 30 08:28:40.177 INFO [stderr] 30 |         let mut input = input.replace("\n", "\0");
Nov 30 08:28:40.177 INFO [stderr]    |             ----^^^^^
Nov 30 08:28:40.177 INFO [stderr]    |             |
Nov 30 08:28:40.177 INFO [stderr]    |             help: remove this `mut`
Nov 30 08:28:40.184 INFO [stderr]    |
Nov 30 08:28:40.184 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 08:28:40.184 INFO [stderr] 
Nov 30 08:28:42.172 INFO [stderr] warning: unreachable expression
Nov 30 08:28:42.172 INFO [stderr]   --> src/echo_client.rs:43:5
Nov 30 08:28:42.172 INFO [stderr]    |
Nov 30 08:28:42.172 INFO [stderr] 43 |     Ok(())
Nov 30 08:28:42.172 INFO [stderr]    |     ^^^^^^
Nov 30 08:28:42.212 INFO [stderr]    |
Nov 30 08:28:42.212 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Nov 30 08:28:42.212 INFO [stderr] 
Nov 30 08:28:42.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 08:28:42.273 INFO [stderr]   --> src/chat.rs:64:13
Nov 30 08:28:42.273 INFO [stderr]    |
Nov 30 08:28:42.273 INFO [stderr] 64 |             await!(lines_tx.send_async(line));
Nov 30 08:28:42.273 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:28:42.273 INFO [stderr]    |
Nov 30 08:28:42.280 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 08:28:42.280 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 08:28:42.280 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 30 08:28:42.280 INFO [stderr] 
Nov 30 08:28:42.325 INFO [stderr] warning: variable does not need to be mutable
Nov 30 08:28:42.325 INFO [stderr]   --> src/echo_client.rs:30:13
Nov 30 08:28:42.325 INFO [stderr]    |
Nov 30 08:28:42.325 INFO [stderr] 30 |         let mut input = input.replace("\n", "\0");
Nov 30 08:28:42.325 INFO [stderr]    |             ----^^^^^
Nov 30 08:28:42.325 INFO [stderr]    |             |
Nov 30 08:28:42.325 INFO [stderr]    |             help: remove this `mut`
Nov 30 08:28:42.356 INFO [stderr]    |
Nov 30 08:28:42.356 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 08:28:42.356 INFO [stderr] 
Nov 30 08:28:43.252 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.52s
Nov 30 08:28:43.260 INFO [stderr] su: No module specific data is present
Nov 30 08:28:43.916 INFO running `"docker" "inspect" "573cc9f63a633c60fc5f5be5636e1e0da8c71acd51fae88021f91799142c89c1"`
Nov 30 08:28:44.279 INFO running `"docker" "rm" "-f" "573cc9f63a633c60fc5f5be5636e1e0da8c71acd51fae88021f91799142c89c1"`
Nov 30 08:28:44.540 INFO [stdout] 573cc9f63a633c60fc5f5be5636e1e0da8c71acd51fae88021f91799142c89c1