[INFO] cloning repository https://github.com/kdar/rust-statemachine-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kdar/rust-statemachine-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdar%2Frust-statemachine-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdar%2Frust-statemachine-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1198997a5eadf3a50c55bb9d68677b4392c65871
[INFO] checking kdar/rust-statemachine-examples against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdar%2Frust-statemachine-examples" "/workspace/builds/worker-40/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-40/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kdar/rust-statemachine-examples on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kdar/rust-statemachine-examples
[INFO] finished tweaking git repo https://github.com/kdar/rust-statemachine-examples
[INFO] tweaked toml for git repo https://github.com/kdar/rust-statemachine-examples written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] crate git repo https://github.com/kdar/rust-statemachine-examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bba4fb738db3113e59a1d4e010242b713a5190d4592719d342b8918bd4d76a9
[INFO] running `Command { std: "docker" "start" "-a" "7bba4fb738db3113e59a1d4e010242b713a5190d4592719d342b8918bd4d76a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bba4fb738db3113e59a1d4e010242b713a5190d4592719d342b8918bd4d76a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bba4fb738db3113e59a1d4e010242b713a5190d4592719d342b8918bd4d76a9", kill_on_drop: false }`
[INFO] [stdout] 7bba4fb738db3113e59a1d4e010242b713a5190d4592719d342b8918bd4d76a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc68296867b7927ce57bf8acd5df0c2fd05ca639fac8f5aea968fbe869cec40a
[INFO] running `Command { std: "docker" "start" "-a" "fc68296867b7927ce57bf8acd5df0c2fd05ca639fac8f5aea968fbe869cec40a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust-statemachine-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/sm1.rs:21:34
[INFO] [stdout]    |
[INFO] [stdout] 21 |   fn state2(&mut self) -> Option<(&'static str)> {
[INFO] [stdout]    |                                  ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -   fn state2(&mut self) -> Option<(&'static str)> {
[INFO] [stdout] 21 +   fn state2(&mut self) -> Option<&'static str> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/sm1.rs:26:34
[INFO] [stdout]    |
[INFO] [stdout] 26 |   fn state3(&mut self) -> Option<(&'static str)> {
[INFO] [stdout]    |                                  ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 26 -   fn state3(&mut self) -> Option<(&'static str)> {
[INFO] [stdout] 26 +   fn state3(&mut self) -> Option<&'static str> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/sm1.rs:21:34
[INFO] [stdout]    |
[INFO] [stdout] 21 |   fn state2(&mut self) -> Option<(&'static str)> {
[INFO] [stdout]    |                                  ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -   fn state2(&mut self) -> Option<(&'static str)> {
[INFO] [stdout] 21 +   fn state2(&mut self) -> Option<&'static str> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/sm1.rs:26:34
[INFO] [stdout]    |
[INFO] [stdout] 26 |   fn state3(&mut self) -> Option<(&'static str)> {
[INFO] [stdout]    |                                  ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 26 -   fn state3(&mut self) -> Option<(&'static str)> {
[INFO] [stdout] 26 +   fn state3(&mut self) -> Option<&'static str> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.67s
[INFO] running `Command { std: "docker" "inspect" "fc68296867b7927ce57bf8acd5df0c2fd05ca639fac8f5aea968fbe869cec40a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc68296867b7927ce57bf8acd5df0c2fd05ca639fac8f5aea968fbe869cec40a", kill_on_drop: false }`
[INFO] [stdout] fc68296867b7927ce57bf8acd5df0c2fd05ca639fac8f5aea968fbe869cec40a