[INFO] fetching crate typestate 0.9.0-rc2...
[INFO] building typestate-0.9.0-rc2 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate typestate 0.9.0-rc2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate typestate 0.9.0-rc2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate typestate 0.9.0-rc2
[INFO] tweaked toml for crates.io crate typestate 0.9.0-rc2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate typestate 0.9.0-rc2 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate typestate 0.9.0-rc2 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa1aae34a443a99e3656b18b0faddf35b068ce3ceaf4d8712c832d69db06031f
[INFO] running `Command { std: "docker" "start" "-a" "fa1aae34a443a99e3656b18b0faddf35b068ce3ceaf4d8712c832d69db06031f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa1aae34a443a99e3656b18b0faddf35b068ce3ceaf4d8712c832d69db06031f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa1aae34a443a99e3656b18b0faddf35b068ce3ceaf4d8712c832d69db06031f", kill_on_drop: false }`
[INFO] [stdout] fa1aae34a443a99e3656b18b0faddf35b068ce3ceaf4d8712c832d69db06031f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca7b9d8480ce120c318e1d6da6e46fcda7b19ec3b7d26c68e46ab0850ab28167
[INFO] running `Command { std: "docker" "start" "-a" "ca7b9d8480ce120c318e1d6da6e46fcda7b19ec3b7d26c68e46ab0850ab28167", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling aquamarine v0.1.9
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling typestate-proc-macro v0.9.0-rc2
[INFO] [stderr]    Compiling typestate v0.9.0-rc2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.74s
[INFO] running `Command { std: "docker" "inspect" "ca7b9d8480ce120c318e1d6da6e46fcda7b19ec3b7d26c68e46ab0850ab28167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca7b9d8480ce120c318e1d6da6e46fcda7b19ec3b7d26c68e46ab0850ab28167", kill_on_drop: false }`
[INFO] [stdout] ca7b9d8480ce120c318e1d6da6e46fcda7b19ec3b7d26c68e46ab0850ab28167
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27b657f4deef6590d5879e58ddb97cc27a96312c0dc6a07e082e05fdb41ed9f1
[INFO] running `Command { std: "docker" "start" "-a" "27b657f4deef6590d5879e58ddb97cc27a96312c0dc6a07e082e05fdb41ed9f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling trybuild v1.0.42
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling dissimilar v1.0.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling typestate v0.9.0-rc2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]  --> examples/lifetime_automata.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     struct Player {}
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/lifetime_automata.rs:24:24
[INFO] [stdout]    |
[INFO] [stdout] 24 |         fn start(name: &str) -> Alive;
[INFO] [stdout]    |                        ^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 24 |         fn start(name: &str) -> Alive<'_>;
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Alive` is never constructed
[INFO] [stdout]  --> examples/lifetime_automata.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     struct Alive<'name> {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dead` is never constructed
[INFO] [stdout]   --> examples/lifetime_automata.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     struct Dead<'name> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PlayerLifeState` is never used
[INFO] [stdout]   --> examples/lifetime_automata.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 |     enum PlayerLifeState {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AliveState` is never used
[INFO] [stdout]   --> examples/lifetime_automata.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 |     trait Alive<'name> {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DeadState` is never used
[INFO] [stdout]   --> examples/lifetime_automata.rs:29:11
[INFO] [stdout]    |
[INFO] [stdout] 29 |     trait Dead {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SmartBulb` is never constructed
[INFO] [stdout]  --> examples/smart_bulb.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     struct SmartBulb {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Off` is never constructed
[INFO] [stdout]   --> examples/smart_bulb.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 |     #[state] struct Off;
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OffState` is never used
[INFO] [stdout]   --> examples/smart_bulb.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 |     trait Off {
[INFO] [stdout]    |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `On` is never constructed
[INFO] [stdout]   --> examples/smart_bulb.rs:17:21
[INFO] [stdout]    |
[INFO] [stdout] 17 |     #[state] struct On;
[INFO] [stdout]    |                     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OnState` is never used
[INFO] [stdout]   --> examples/smart_bulb.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |     trait On {
[INFO] [stdout]    |           ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Unknown` is never used
[INFO] [stdout]   --> examples/smart_bulb.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |     enum Unknown {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bulb`
[INFO] [stdout]   --> examples/light_bulb.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let bulb = bulb.turn_off();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_bulb`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `unscrew` is never used
[INFO] [stdout]   --> examples/light_bulb.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub trait Off {
[INFO] [stdout]    |               --- method in this trait
[INFO] [stdout] 12 |         fn screw() -> Off;
[INFO] [stdout] 13 |         fn unscrew(self);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_either` is never used
[INFO] [stdout]   --> examples/traffic_light.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub trait Red {
[INFO] [stdout]    |               --- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 98 |         fn to_either(self) -> Either;
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Either` is never used
[INFO] [stdout]    --> examples/traffic_light.rs:101:14
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub enum Either {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.85s
[INFO] running `Command { std: "docker" "inspect" "27b657f4deef6590d5879e58ddb97cc27a96312c0dc6a07e082e05fdb41ed9f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b657f4deef6590d5879e58ddb97cc27a96312c0dc6a07e082e05fdb41ed9f1", kill_on_drop: false }`
[INFO] [stdout] 27b657f4deef6590d5879e58ddb97cc27a96312c0dc6a07e082e05fdb41ed9f1