Dec 19 11:05:27.470 INFO checking peterdelevoryas/io-state-machine-prototype4 against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 11:05:27.470 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/peterdelevoryas/io-state-machine-prototype4:/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 11:05:27.838 INFO [stdout] 75c868bf25e6c39721a7b9f126fe71557dc58efc9a9da0d8a40b49ab385bb90a
Dec 19 11:05:27.839 INFO running `"docker" "start" "-a" "75c868bf25e6c39721a7b9f126fe71557dc58efc9a9da0d8a40b49ab385bb90a"`
Dec 19 11:05:29.368 INFO [stderr]     Checking io-state-machine-prototype4 v0.1.0 (/opt/crater/workdir)
Dec 19 11:05:29.704 INFO [stderr] warning: unreachable expression
Dec 19 11:05:29.704 INFO [stderr]    --> src/main.rs:187:5
Dec 19 11:05:29.704 INFO [stderr]     |
Dec 19 11:05:29.704 INFO [stderr] 187 |     return Ok(())
Dec 19 11:05:29.704 INFO [stderr]     |     ^^^^^^^^^^^^^
Dec 19 11:05:29.704 INFO [stderr]     |
Dec 19 11:05:29.704 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 19 11:05:29.704 INFO [stderr] 
Dec 19 11:05:29.716 INFO [stderr] warning: unused variable: `i`
Dec 19 11:05:29.716 INFO [stderr]    --> src/main.rs:140:47
Dec 19 11:05:29.716 INFO [stderr]     |
Dec 19 11:05:29.716 INFO [stderr] 140 |                 Task::Conn { conn_slab_index: i } => {
Dec 19 11:05:29.716 INFO [stderr]     |                                               ^ help: consider using `_i` instead
Dec 19 11:05:29.716 INFO [stderr]     |
Dec 19 11:05:29.716 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 11:05:29.716 INFO [stderr] 
Dec 19 11:05:29.716 INFO [stderr] warning: unused variable: `result`
Dec 19 11:05:29.716 INFO [stderr]    --> src/main.rs:148:34
Dec 19 11:05:29.716 INFO [stderr]     |
Dec 19 11:05:29.716 INFO [stderr] 148 |                 TaskStatus::Done(result) => {
Dec 19 11:05:29.716 INFO [stderr]     |                                  ^^^^^^ help: consider using `_result` instead
Dec 19 11:05:29.716 INFO [stderr] warning: unreachable expression
Dec 19 11:05:29.716 INFO [stderr]    --> src/main.rs:187:5
Dec 19 11:05:29.716 INFO [stderr]     |
Dec 19 11:05:29.716 INFO [stderr] 187 |     return Ok(())
Dec 19 11:05:29.716 INFO [stderr]     |     ^^^^^^^^^^^^^
Dec 19 11:05:29.716 INFO [stderr]     |
Dec 19 11:05:29.716 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 19 11:05:29.716 INFO [stderr] 
Dec 19 11:05:29.716 INFO [stderr] 
Dec 19 11:05:29.716 INFO [stderr] warning: unused variable: `i`
Dec 19 11:05:29.716 INFO [stderr]    --> src/main.rs:167:47
Dec 19 11:05:29.716 INFO [stderr]     |
Dec 19 11:05:29.716 INFO [stderr] 167 |                 Task::Conn { conn_slab_index: i } => {
Dec 19 11:05:29.716 INFO [stderr]     |                                               ^ help: consider using `_i` instead
Dec 19 11:05:29.716 INFO [stderr] 
Dec 19 11:05:29.716 INFO [stderr] warning: unused variable: `result`
Dec 19 11:05:29.716 INFO [stderr]    --> src/main.rs:175:34
Dec 19 11:05:29.716 INFO [stderr]     |
Dec 19 11:05:29.716 INFO [stderr] 175 |                 TaskStatus::Done(result) => {
Dec 19 11:05:29.717 INFO [stderr]     |                                  ^^^^^^ help: consider using `_result` instead
Dec 19 11:05:29.717 INFO [stderr] 
Dec 19 11:05:29.717 INFO [stderr] warning: unused variable: `ready`
Dec 19 11:05:29.717 INFO [stderr]   --> src/main.rs:23:12
Dec 19 11:05:29.717 INFO [stderr]    |
Dec 19 11:05:29.717 INFO [stderr] 23 |            ready: mio::Ready,
Dec 19 11:05:29.717 INFO [stderr]    |            ^^^^^ help: consider using `_ready` instead
Dec 19 11:05:29.717 INFO [stderr] 
Dec 19 11:05:29.729 INFO [stderr] warning: unused variable: `i`
Dec 19 11:05:29.729 INFO [stderr]    --> src/main.rs:140:47
Dec 19 11:05:29.729 INFO [stderr]     |
Dec 19 11:05:29.729 INFO [stderr] 140 |                 Task::Conn { conn_slab_index: i } => {
Dec 19 11:05:29.729 INFO [stderr]     |                                               ^ help: consider using `_i` instead
Dec 19 11:05:29.729 INFO [stderr]     |
Dec 19 11:05:29.729 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 11:05:29.729 INFO [stderr] 
Dec 19 11:05:29.729 INFO [stderr] warning: unused variable: `result`
Dec 19 11:05:29.729 INFO [stderr]    --> src/main.rs:148:34
Dec 19 11:05:29.729 INFO [stderr]     |
Dec 19 11:05:29.729 INFO [stderr] 148 |                 TaskStatus::Done(result) => {
Dec 19 11:05:29.729 INFO [stderr]     |                                  ^^^^^^ help: consider using `_result` instead
Dec 19 11:05:29.729 INFO [stderr] 
Dec 19 11:05:29.729 INFO [stderr] warning: unused variable: `i`
Dec 19 11:05:29.729 INFO [stderr]    --> src/main.rs:167:47
Dec 19 11:05:29.729 INFO [stderr]     |
Dec 19 11:05:29.729 INFO [stderr] 167 |                 Task::Conn { conn_slab_index: i } => {
Dec 19 11:05:29.729 INFO [stderr]     |                                               ^ help: consider using `_i` instead
Dec 19 11:05:29.729 INFO [stderr] 
Dec 19 11:05:29.729 INFO [stderr] warning: unused variable: `result`
Dec 19 11:05:29.729 INFO [stderr]    --> src/main.rs:175:34
Dec 19 11:05:29.729 INFO [stderr]     |
Dec 19 11:05:29.729 INFO [stderr] 175 |                 TaskStatus::Done(result) => {
Dec 19 11:05:29.729 INFO [stderr]     |                                  ^^^^^^ help: consider using `_result` instead
Dec 19 11:05:29.729 INFO [stderr] 
Dec 19 11:05:29.729 INFO [stderr] warning: unused variable: `ready`
Dec 19 11:05:29.730 INFO [stderr]   --> src/main.rs:23:12
Dec 19 11:05:29.730 INFO [stderr]    |
Dec 19 11:05:29.730 INFO [stderr] 23 |            ready: mio::Ready,
Dec 19 11:05:29.730 INFO [stderr]    |            ^^^^^ help: consider using `_ready` instead
Dec 19 11:05:29.730 INFO [stderr] 
Dec 19 11:05:29.758 INFO [stderr] warning: variant is never constructed: `KineticRequest`
Dec 19 11:05:29.758 INFO [stderr]    --> src/main.rs:108:5
Dec 19 11:05:29.758 INFO [stderr]     |
Dec 19 11:05:29.758 INFO [stderr] 108 |     KineticRequest,
Dec 19 11:05:29.758 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 19 11:05:29.758 INFO [stderr]     |
Dec 19 11:05:29.758 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 11:05:29.758 INFO [stderr] 
Dec 19 11:05:29.776 INFO [stderr] warning: variant is never constructed: `KineticRequest`
Dec 19 11:05:29.776 INFO [stderr]    --> src/main.rs:108:5
Dec 19 11:05:29.776 INFO [stderr]     |
Dec 19 11:05:29.776 INFO [stderr] 108 |     KineticRequest,
Dec 19 11:05:29.776 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 19 11:05:29.776 INFO [stderr]     |
Dec 19 11:05:29.776 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 11:05:29.776 INFO [stderr] 
Dec 19 11:05:29.808 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Dec 19 11:05:30.553 INFO running `"docker" "inspect" "75c868bf25e6c39721a7b9f126fe71557dc58efc9a9da0d8a40b49ab385bb90a"`
Dec 19 11:05:30.753 INFO running `"docker" "rm" "-f" "75c868bf25e6c39721a7b9f126fe71557dc58efc9a9da0d8a40b49ab385bb90a"`
Dec 19 11:05:31.000 INFO [stdout] 75c868bf25e6c39721a7b9f126fe71557dc58efc9a9da0d8a40b49ab385bb90a