[INFO] cloning repository https://github.com/mmaslyukov/rust-fsm-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmaslyukov/rust-fsm-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmaslyukov%2Frust-fsm-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmaslyukov%2Frust-fsm-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 71a1eb203d9d12dbbde628c5eadd737186fa149f
[INFO] checking mmaslyukov/rust-fsm-example/71a1eb203d9d12dbbde628c5eadd737186fa149f against master#249cb84316401daf040832cdbb8a45e0f5ab6af8 for pr-138438
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmaslyukov%2Frust-fsm-example" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmaslyukov/rust-fsm-example on toolchain 249cb84316401daf040832cdbb8a45e0f5ab6af8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mmaslyukov/rust-fsm-example
[INFO] finished tweaking git repo https://github.com/mmaslyukov/rust-fsm-example
[INFO] tweaked toml for git repo https://github.com/mmaslyukov/rust-fsm-example written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mmaslyukov/rust-fsm-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e67d659dc1bfa3c94fd02656aeacb8dff9daaaff58facf125c3fa0acb27ee7f
[INFO] running `Command { std: "docker" "start" "-a" "3e67d659dc1bfa3c94fd02656aeacb8dff9daaaff58facf125c3fa0acb27ee7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e67d659dc1bfa3c94fd02656aeacb8dff9daaaff58facf125c3fa0acb27ee7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e67d659dc1bfa3c94fd02656aeacb8dff9daaaff58facf125c3fa0acb27ee7f", kill_on_drop: false }`
[INFO] [stdout] 3e67d659dc1bfa3c94fd02656aeacb8dff9daaaff58facf125c3fa0acb27ee7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4686b9aaebd1faebd847f5ad2e9c3055fc4cba5928d8eb50d74366bc9471593f
[INFO] running `Command { std: "docker" "start" "-a" "4686b9aaebd1faebd847f5ad2e9c3055fc4cba5928d8eb50d74366bc9471593f", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-fsm-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/fsm.rs:50:20
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn wrap<S>(mut self, state: S) -> State
[INFO] [stdout]    |                    ----^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/fsm.rs:130:20
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn transit(mut self) -> State {
[INFO] [stdout]     |                    ----^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]   --> src/fsm.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum State {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]   --> src/fsm.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Data {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `wrap`, `start`, `stop`, and `name` are never used
[INFO] [stdout]   --> src/fsm.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl Data {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 43 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn wrap<S>(mut self, state: S) -> State
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn start(&mut self, _e: Event) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     pub fn stop(&mut self, _e: Event) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub fn name(&mut self, e: Event) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `consume` and `data` are never used
[INFO] [stdout]   --> src/fsm.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl State {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 74 |     pub fn consume(self, e: Event) -> Transition {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88 |     pub fn data(&self) -> &Data {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Wrapper` is never used
[INFO] [stdout]   --> src/fsm.rs:98:6
[INFO] [stdout]    |
[INFO] [stdout] 98 | type Wrapper = fn(Data) -> State;
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Handler` is never used
[INFO] [stdout]   --> src/fsm.rs:99:6
[INFO] [stdout]    |
[INFO] [stdout] 99 | type Handler = fn(&mut Data, Event);
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Transition` is never constructed
[INFO] [stdout]    --> src/fsm.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | struct Transition {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `make_valid`, `make_shallow`, and `transit` are never used
[INFO] [stdout]    --> src/fsm.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 109 | impl Transition {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 110 |     pub fn make_valid(wrap: Wrapper, data: Data, event: Event, func: Handler) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn make_shallow(next: State, event: Event) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub fn transit(mut self) -> State {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/fsm.rs:50:20
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn wrap<S>(mut self, state: S) -> State
[INFO] [stdout]    |                    ----^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/fsm.rs:130:20
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn transit(mut self) -> State {
[INFO] [stdout]     |                    ----^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Surv` is never constructed
[INFO] [stdout]   --> src/fsm.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum State {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 22 |     Surv(Data),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "4686b9aaebd1faebd847f5ad2e9c3055fc4cba5928d8eb50d74366bc9471593f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4686b9aaebd1faebd847f5ad2e9c3055fc4cba5928d8eb50d74366bc9471593f", kill_on_drop: false }`
[INFO] [stdout] 4686b9aaebd1faebd847f5ad2e9c3055fc4cba5928d8eb50d74366bc9471593f