[INFO] cloning repository https://github.com/perlindgren/no_std_generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/perlindgren/no_std_generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Fno_std_generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Fno_std_generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5163188b7ae41136dcad427c7c43abd199245f7b
[INFO] checking perlindgren/no_std_generator against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Fno_std_generator" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/perlindgren/no_std_generator on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/perlindgren/no_std_generator
[INFO] finished tweaking git repo https://github.com/perlindgren/no_std_generator
[INFO] tweaked toml for git repo https://github.com/perlindgren/no_std_generator written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/perlindgren/no_std_generator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96402fc6ffde14c07123c2d94d621a511e7d7772f65d2ed33b1e456603e2ca44
[INFO] running `Command { std: "docker" "start" "-a" "96402fc6ffde14c07123c2d94d621a511e7d7772f65d2ed33b1e456603e2ca44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96402fc6ffde14c07123c2d94d621a511e7d7772f65d2ed33b1e456603e2ca44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96402fc6ffde14c07123c2d94d621a511e7d7772f65d2ed33b1e456603e2ca44", kill_on_drop: false }`
[INFO] [stdout] 96402fc6ffde14c07123c2d94d621a511e7d7772f65d2ed33b1e456603e2ca44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 858cf9535f1b30d413931a16c1994cf26777ea2eba24239b33027fb69af5b461
[INFO] running `Command { std: "docker" "start" "-a" "858cf9535f1b30d413931a16c1994cf26777ea2eba24239b33027fb69af5b461", kill_on_drop: false }`
[INFO] [stderr]     Checking generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]  --> src/main.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | type G = impl Generator<Yield = &'static u32, Return = !>;
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout]   = help: add `#![feature(min_type_alias_impl_trait)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `type_alias_impl_trait` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: type alias impl trait is not permitted here
[INFO] [stdout]   --> src/main.rs:29:32
[INFO] [stdout]    |
[INFO] [stdout] 29 | static mut X: MaybeUninit<G> = MaybeUninit::uninit();
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
[INFO] [stdout]    = help: add `#![feature(impl_trait_in_bindings)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]   --> src/main.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | static mut X: MaybeUninit<G> = MaybeUninit::uninit();
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `[generator@src/main.rs:13:5: 26:6]`, got `[type error]`
[INFO] [stdout]    |
[INFO] [stdout] note: previous use here
[INFO] [stdout]   --> src/main.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn task(x: &'static mut u32) -> G {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/main.rs:37:57
[INFO] [stdout]     |
[INFO] [stdout] 37  |         println!("-- {:?}", Pin::new_unchecked(&mut *g).resume());
[INFO] [stdout]     |                                                         ^^^^^^- supplied 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout] help: expected the unit value `()`; create it with empty parentheses
[INFO] [stdout]     |
[INFO] [stdout] 37  |         println!("-- {:?}", Pin::new_unchecked(&mut *g).resume(()));
[INFO] [stdout]     |                                                                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/main.rs:38:57
[INFO] [stdout]     |
[INFO] [stdout] 38  |         println!("-- {:?}", Pin::new_unchecked(&mut *g).resume());
[INFO] [stdout]     |                                                         ^^^^^^- supplied 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout] help: expected the unit value `()`; create it with empty parentheses
[INFO] [stdout]     |
[INFO] [stdout] 38  |         println!("-- {:?}", Pin::new_unchecked(&mut *g).resume(()));
[INFO] [stdout]     |                                                                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/main.rs:39:57
[INFO] [stdout]     |
[INFO] [stdout] 39  |         println!("-- {:?}", Pin::new_unchecked(&mut *g).resume());
[INFO] [stdout]     |                                                         ^^^^^^- supplied 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout] help: expected the unit value `()`; create it with empty parentheses
[INFO] [stdout]     |
[INFO] [stdout] 39  |         println!("-- {:?}", Pin::new_unchecked(&mut *g).resume(()));
[INFO] [stdout]     |                                                                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]  --> src/main.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | type G = impl Generator<Yield = &'static u32, Return = !>;
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout]   = help: add `#![feature(min_type_alias_impl_trait)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `type_alias_impl_trait` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: type alias impl trait is not permitted here
[INFO] [stdout]   --> src/main.rs:29:32
[INFO] [stdout]    |
[INFO] [stdout] 29 | static mut X: MaybeUninit<G> = MaybeUninit::uninit();
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
[INFO] [stdout]    = help: add `#![feature(impl_trait_in_bindings)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]   --> src/main.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | static mut X: MaybeUninit<G> = MaybeUninit::uninit();
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `[generator@src/main.rs:13:5: 26:6]`, got `[type error]`
[INFO] [stdout]    |
[INFO] [stdout] note: previous use here
[INFO] [stdout]   --> src/main.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn task(x: &'static mut u32) -> G {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `generator` due to 7 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/main.rs:37:57
[INFO] [stdout]     |
[INFO] [stdout] 37  |         println!("-- {:?}", Pin::new_unchecked(&mut *g).resume());
[INFO] [stdout]     |                                                         ^^^^^^- supplied 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout] help: expected the unit value `()`; create it with empty parentheses
[INFO] [stdout]     |
[INFO] [stdout] 37  |         println!("-- {:?}", Pin::new_unchecked(&mut *g).resume(()));
[INFO] [stdout]     |                                                                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/main.rs:38:57
[INFO] [stdout]     |
[INFO] [stdout] 38  |         println!("-- {:?}", Pin::new_unchecked(&mut *g).resume());
[INFO] [stdout]     |                                                         ^^^^^^- supplied 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout] help: expected the unit value `()`; create it with empty parentheses
[INFO] [stdout]     |
[INFO] [stdout] 38  |         println!("-- {:?}", Pin::new_unchecked(&mut *g).resume(()));
[INFO] [stdout]     |                                                                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/main.rs:39:57
[INFO] [stdout]     |
[INFO] [stdout] 39  |         println!("-- {:?}", Pin::new_unchecked(&mut *g).resume());
[INFO] [stdout]     |                                                         ^^^^^^- supplied 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout] help: expected the unit value `()`; create it with empty parentheses
[INFO] [stdout]     |
[INFO] [stdout] 39  |         println!("-- {:?}", Pin::new_unchecked(&mut *g).resume(()));
[INFO] [stdout]     |                                                                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "858cf9535f1b30d413931a16c1994cf26777ea2eba24239b33027fb69af5b461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "858cf9535f1b30d413931a16c1994cf26777ea2eba24239b33027fb69af5b461", kill_on_drop: false }`
[INFO] [stdout] 858cf9535f1b30d413931a16c1994cf26777ea2eba24239b33027fb69af5b461