[INFO] updating cached repository peterdelevoryas/io-state-machine-prototype4
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/peterdelevoryas/io-state-machine-prototype4
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/peterdelevoryas/io-state-machine-prototype4" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/peterdelevoryas/io-state-machine-prototype4"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/peterdelevoryas/io-state-machine-prototype4'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/peterdelevoryas/io-state-machine-prototype4" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/peterdelevoryas/io-state-machine-prototype4"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/peterdelevoryas/io-state-machine-prototype4'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 59a8fe24ee6aff714d9dfac6abb54d62b80735f4
[INFO] sha for GitHub repo peterdelevoryas/io-state-machine-prototype4: 59a8fe24ee6aff714d9dfac6abb54d62b80735f4
[INFO] validating manifest of peterdelevoryas/io-state-machine-prototype4 on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of peterdelevoryas/io-state-machine-prototype4 on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing peterdelevoryas/io-state-machine-prototype4
[INFO] finished frobbing peterdelevoryas/io-state-machine-prototype4
[INFO] frobbed toml for peterdelevoryas/io-state-machine-prototype4 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/peterdelevoryas/io-state-machine-prototype4/Cargo.toml
[INFO] started frobbing peterdelevoryas/io-state-machine-prototype4
[INFO] finished frobbing peterdelevoryas/io-state-machine-prototype4
[INFO] frobbed toml for peterdelevoryas/io-state-machine-prototype4 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/peterdelevoryas/io-state-machine-prototype4/Cargo.toml
[INFO] crate peterdelevoryas/io-state-machine-prototype4 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking peterdelevoryas/io-state-machine-prototype4 against try#06a150c7d11500b41499224f165e9de1de096768 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-1/try#06a150c7d11500b41499224f165e9de1de096768:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/peterdelevoryas/io-state-machine-prototype4:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+06a150c7d11500b41499224f165e9de1de096768-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4778195a2246bd3dbf9c1915ea6a06598bfcbed1447600c2328fe659aa62abdc
[INFO] running `"docker" "start" "-a" "4778195a2246bd3dbf9c1915ea6a06598bfcbed1447600c2328fe659aa62abdc"`
[INFO] [stderr]     Checking net2 v0.2.26
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]     Checking mio v0.6.2
[INFO] [stderr]     Checking io-state-machine-prototype4 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/main.rs:187:5
[INFO] [stderr]     |
[INFO] [stderr] 187 |     return Ok(())
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:140:47
[INFO] [stderr]     |
[INFO] [stderr] 140 |                 Task::Conn { conn_slab_index: i } => {
[INFO] [stderr]     |                                               ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/main.rs:148:34
[INFO] [stderr]     |
[INFO] [stderr] 148 |                 TaskStatus::Done(result) => {
[INFO] [stderr]     |                                  ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:167:47
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 Task::Conn { conn_slab_index: i } => {
[INFO] [stderr]     |                                               ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/main.rs:175:34
[INFO] [stderr]     |
[INFO] [stderr] 175 |                 TaskStatus::Done(result) => {
[INFO] [stderr]     |                                  ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ready`
[INFO] [stderr]   --> src/main.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |            ready: mio::Ready,
[INFO] [stderr]    |            ^^^^^ help: consider prefixing with an underscore: `_ready`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/main.rs:187:5
[INFO] [stderr]     |
[INFO] [stderr] 187 |     return Ok(())
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:140:47
[INFO] [stderr]     |
[INFO] [stderr] 140 |                 Task::Conn { conn_slab_index: i } => {
[INFO] [stderr]     |                                               ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/main.rs:148:34
[INFO] [stderr]     |
[INFO] [stderr] 148 |                 TaskStatus::Done(result) => {
[INFO] [stderr]     |                                  ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:167:47
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 Task::Conn { conn_slab_index: i } => {
[INFO] [stderr]     |                                               ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/main.rs:175:34
[INFO] [stderr]     |
[INFO] [stderr] 175 |                 TaskStatus::Done(result) => {
[INFO] [stderr]     |                                  ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `KineticRequest`
[INFO] [stderr]    --> src/main.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 |     KineticRequest,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ready`
[INFO] [stderr]   --> src/main.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |            ready: mio::Ready,
[INFO] [stderr]    |            ^^^^^ help: consider prefixing with an underscore: `_ready`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `KineticRequest`
[INFO] [stderr]    --> src/main.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 |     KineticRequest,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.81s
[INFO] running `"docker" "inspect" "4778195a2246bd3dbf9c1915ea6a06598bfcbed1447600c2328fe659aa62abdc"`
[INFO] running `"docker" "rm" "-f" "4778195a2246bd3dbf9c1915ea6a06598bfcbed1447600c2328fe659aa62abdc"`
[INFO] [stdout] 4778195a2246bd3dbf9c1915ea6a06598bfcbed1447600c2328fe659aa62abdc