Dec 04 23:58:20.194 INFO checking Swoorup/rtasks against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 23:58:20.194 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 23:58:20.687 INFO [stdout] 00af0e9c04de568bb1ca2dc8b854ce535f1bf6c4069768295ac649fe39d38c71
Dec 04 23:58:20.689 INFO running `"docker" "start" "-a" "00af0e9c04de568bb1ca2dc8b854ce535f1bf6c4069768295ac649fe39d38c71"`
Dec 04 23:58:22.386 INFO [stderr] usermod: no changes
Dec 04 23:58:22.643 INFO [stderr]     Checking futures v0.1.25
Dec 04 23:58:25.615 INFO [stderr]     Checking tokio-executor v0.1.5
Dec 04 23:58:25.615 INFO [stderr]     Checking tokio-io v0.1.9
Dec 04 23:58:25.615 INFO [stderr]     Checking futures-cpupool v0.1.8
Dec 04 23:58:25.615 INFO [stderr]     Checking want v0.0.6
Dec 04 23:58:26.767 INFO [stderr]     Checking tokio-threadpool v0.1.7
Dec 04 23:58:26.767 INFO [stderr]     Checking tokio-current-thread v0.1.3
Dec 04 23:58:26.767 INFO [stderr]     Checking tokio-timer v0.2.7
Dec 04 23:58:29.603 INFO [stderr]     Checking tokio-codec v0.1.1
Dec 04 23:58:29.603 INFO [stderr]     Checking tokio-reactor v0.1.6
Dec 04 23:58:29.603 INFO [stderr]     Checking tokio-async-await v0.1.4
Dec 04 23:58:29.603 INFO [stderr]     Checking h2 v0.1.12
Dec 04 23:58:31.618 INFO [stderr]     Checking tokio-fs v0.1.3
Dec 04 23:58:33.115 INFO [stderr]     Checking tokio-uds v0.2.2
Dec 04 23:58:33.115 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 04 23:58:33.115 INFO [stderr]     Checking tokio-udp v0.1.2
Dec 04 23:58:38.937 INFO [stderr]     Checking tokio v0.1.11
Dec 04 23:58:42.238 INFO [stderr]     Checking hyper v0.12.11
Dec 04 23:58:47.608 INFO [stderr]     Checking ctr_test v0.1.0 (/source)
Dec 04 23:58:58.887 INFO [stderr] warning: unreachable expression
Dec 04 23:58:58.887 INFO [stderr]   --> src/echo_client.rs:43:5
Dec 04 23:58:58.887 INFO [stderr]    |
Dec 04 23:58:58.887 INFO [stderr] 43 |     Ok(())
Dec 04 23:58:58.887 INFO [stderr]    |     ^^^^^^
Dec 04 23:58:58.888 INFO [stderr]    |
Dec 04 23:58:58.888 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 04 23:58:58.888 INFO [stderr] 
Dec 04 23:58:59.063 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:58:59.063 INFO [stderr]   --> src/echo_client.rs:30:13
Dec 04 23:58:59.063 INFO [stderr]    |
Dec 04 23:58:59.063 INFO [stderr] 30 |         let mut input = input.replace("\n", "\0");
Dec 04 23:58:59.063 INFO [stderr]    |             ----^^^^^
Dec 04 23:58:59.063 INFO [stderr]    |             |
Dec 04 23:58:59.063 INFO [stderr]    |             help: remove this `mut`
Dec 04 23:58:59.063 INFO [stderr]    |
Dec 04 23:58:59.063 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 23:58:59.063 INFO [stderr] 
Dec 04 23:59:00.855 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:59:00.855 INFO [stderr]   --> src/chat.rs:64:13
Dec 04 23:59:00.855 INFO [stderr]    |
Dec 04 23:59:00.855 INFO [stderr] 64 |             await!(lines_tx.send_async(line));
Dec 04 23:59:00.855 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:59:00.855 INFO [stderr]    |
Dec 04 23:59:00.855 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 23:59:00.855 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:59:00.855 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 04 23:59:00.855 INFO [stderr] 
Dec 04 23:59:01.143 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:59:01.143 INFO [stderr]   --> src/chat.rs:64:13
Dec 04 23:59:01.143 INFO [stderr]    |
Dec 04 23:59:01.143 INFO [stderr] 64 |             await!(lines_tx.send_async(line));
Dec 04 23:59:01.143 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:59:01.143 INFO [stderr]    |
Dec 04 23:59:01.143 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 23:59:01.143 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:59:01.143 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 04 23:59:01.143 INFO [stderr] 
Dec 04 23:59:01.859 INFO [stderr] warning: unreachable expression
Dec 04 23:59:01.859 INFO [stderr]   --> src/echo_client.rs:43:5
Dec 04 23:59:01.859 INFO [stderr]    |
Dec 04 23:59:01.859 INFO [stderr] 43 |     Ok(())
Dec 04 23:59:01.859 INFO [stderr]    |     ^^^^^^
Dec 04 23:59:01.883 INFO [stderr]    |
Dec 04 23:59:01.883 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 04 23:59:01.883 INFO [stderr] 
Dec 04 23:59:01.995 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:59:01.995 INFO [stderr]   --> src/echo_client.rs:30:13
Dec 04 23:59:01.995 INFO [stderr]    |
Dec 04 23:59:01.995 INFO [stderr] 30 |         let mut input = input.replace("\n", "\0");
Dec 04 23:59:01.995 INFO [stderr]    |             ----^^^^^
Dec 04 23:59:01.995 INFO [stderr]    |             |
Dec 04 23:59:01.995 INFO [stderr]    |             help: remove this `mut`
Dec 04 23:59:01.995 INFO [stderr]    |
Dec 04 23:59:01.995 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 23:59:01.995 INFO [stderr] 
Dec 04 23:59:02.527 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.12s
Dec 04 23:59:02.538 INFO [stderr] su: No module specific data is present
Dec 04 23:59:03.580 INFO running `"docker" "inspect" "00af0e9c04de568bb1ca2dc8b854ce535f1bf6c4069768295ac649fe39d38c71"`
Dec 04 23:59:03.873 INFO running `"docker" "rm" "-f" "00af0e9c04de568bb1ca2dc8b854ce535f1bf6c4069768295ac649fe39d38c71"`
Dec 04 23:59:04.203 INFO [stdout] 00af0e9c04de568bb1ca2dc8b854ce535f1bf6c4069768295ac649fe39d38c71