[INFO] cloning repository https://github.com/chipsoft/closure01
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chipsoft/closure01" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchipsoft%2Fclosure01", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchipsoft%2Fclosure01'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e4806e2ba2b118d37909a83ba5be4c7b9fbf1313
[INFO] checking chipsoft/closure01 against try#bf5ff6675cf10ce009ac02007b064a7cfc4509ac for pr-140558
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchipsoft%2Fclosure01" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chipsoft/closure01 on toolchain bf5ff6675cf10ce009ac02007b064a7cfc4509ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chipsoft/closure01
[INFO] finished tweaking git repo https://github.com/chipsoft/closure01
[INFO] tweaked toml for git repo https://github.com/chipsoft/closure01 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/chipsoft/closure01 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" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc23f70bae309d9e86a2f8f684b2beb3df4830336d51b838660937b2a7e065bc
[INFO] running `Command { std: "docker" "start" "-a" "dc23f70bae309d9e86a2f8f684b2beb3df4830336d51b838660937b2a7e065bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc23f70bae309d9e86a2f8f684b2beb3df4830336d51b838660937b2a7e065bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc23f70bae309d9e86a2f8f684b2beb3df4830336d51b838660937b2a7e065bc", kill_on_drop: false }`
[INFO] [stdout] dc23f70bae309d9e86a2f8f684b2beb3df4830336d51b838660937b2a7e065bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40a4607314f3e7b0b0c366370efc9d1e02a86a2179c10b15382ed2275434a791
[INFO] running `Command { std: "docker" "start" "-a" "40a4607314f3e7b0b0c366370efc9d1e02a86a2179c10b15382ed2275434a791", kill_on_drop: false }`
[INFO] [stderr]     Checking closure01 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Simple` is never constructed
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Event<F> where F: Fn(), {
[INFO] [stdout]   |      ----- variant in this enum
[INFO] [stdout] 3 |     Simple,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `once_callback_complete` is never read
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct SM<S, U> where U: Fn(usize) {
[INFO] [stdout]    |        -- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     once_callback_complete: Option<fn()>, // This is temproriary callback. It calls only one time and override permanent callback_complete
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_state`, `set_once_callback_complete`, and `run` are never used
[INFO] [stdout]   --> src/main.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl<S, U> SM<S, U> where U: Fn(usize) {
[INFO] [stdout]    | -------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn get_state(&self) -> &Option<S> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn set_once_callback_complete(mut self, once_callback_complete: Option<fn()>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn run<F>(&self, event: Event<F>) where F: Fn() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Simple` is never constructed
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Event<F> where F: Fn(), {
[INFO] [stdout]   |      ----- variant in this enum
[INFO] [stdout] 3 |     Simple,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `once_callback_complete` is never read
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct SM<S, U> where U: Fn(usize) {
[INFO] [stdout]    |        -- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     once_callback_complete: Option<fn()>, // This is temproriary callback. It calls only one time and override permanent callback_complete
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_state`, `set_once_callback_complete`, and `run` are never used
[INFO] [stdout]   --> src/main.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl<S, U> SM<S, U> where U: Fn(usize) {
[INFO] [stdout]    | -------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn get_state(&self) -> &Option<S> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn set_once_callback_complete(mut self, once_callback_complete: Option<fn()>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn run<F>(&self, event: Event<F>) where F: Fn() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "40a4607314f3e7b0b0c366370efc9d1e02a86a2179c10b15382ed2275434a791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40a4607314f3e7b0b0c366370efc9d1e02a86a2179c10b15382ed2275434a791", kill_on_drop: false }`
[INFO] [stdout] 40a4607314f3e7b0b0c366370efc9d1e02a86a2179c10b15382ed2275434a791