[INFO] fetching crate simple-generators-util 0.1.1...
[INFO] testing simple-generators-util-0.1.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate simple-generators-util 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate simple-generators-util 0.1.1
[INFO] finished tweaking crates.io crate simple-generators-util 0.1.1
[INFO] tweaked toml for crates.io crate simple-generators-util 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple-generators-util 0.1.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding pin-project v0.4.30 (available: v1.1.10)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pin-project-internal v0.4.30
[INFO] [stderr]   Downloaded pin-project v0.4.30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5a748d2835b9f9734681f6946d7924b20ea9e3f8cca6272ee94bc7cdca98411
[INFO] running `Command { std: "docker" "start" "-a" "d5a748d2835b9f9734681f6946d7924b20ea9e3f8cca6272ee94bc7cdca98411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5a748d2835b9f9734681f6946d7924b20ea9e3f8cca6272ee94bc7cdca98411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5a748d2835b9f9734681f6946d7924b20ea9e3f8cca6272ee94bc7cdca98411", kill_on_drop: false }`
[INFO] [stdout] d5a748d2835b9f9734681f6946d7924b20ea9e3f8cca6272ee94bc7cdca98411
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05b3fb0287bb7c062fd791995e8f6acbb44bb4a23111661538b7d2c80660a9da
[INFO] running `Command { std: "docker" "start" "-a" "05b3fb0287bb7c062fd791995e8f6acbb44bb4a23111661538b7d2c80660a9da", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling pin-project-internal v0.4.30
[INFO] [stderr]    Compiling pin-project v0.4.30
[INFO] [stderr]    Compiling simple-generators-util v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `core::ops::Generator`, `core::ops::GeneratorState`
[INFO] [stdout]  --> src/iter.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ops::{Generator, GeneratorState},
[INFO] [stdout]   |           ^^^^^^^^^  ^^^^^^^^^^^^^^ no `GeneratorState` in `ops`
[INFO] [stdout]   |           |
[INFO] [stdout]   |           no `Generator` in `ops`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing this variant instead:
[INFO] [stdout]           crate::FusedGenIterator::Generator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::ops::Generator`, `core::ops::GeneratorState`
[INFO] [stdout]  --> src/map.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 |     ops::{Generator, GeneratorState},
[INFO] [stdout]   |           ^^^^^^^^^  ^^^^^^^^^^^^^^ no `GeneratorState` in `ops`
[INFO] [stdout]   |           |
[INFO] [stdout]   |           no `Generator` in `ops`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing this variant instead:
[INFO] [stdout]           crate::FusedGenIterator::Generator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::ops::Generator`, `core::ops::GeneratorState`
[INFO] [stdout]   --> src/lib.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ops::{Generator, GeneratorState},
[INFO] [stdout]    |           ^^^^^^^^^  ^^^^^^^^^^^^^^ no `GeneratorState` in `ops`
[INFO] [stdout]    |           |
[INFO] [stdout]    |           no `Generator` in `ops`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider importing this variant instead:
[INFO] [stdout]            crate::FusedGenIterator::Generator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Generator` in module `core::ops`
[INFO] [stdout]   --> src/lib.rs:23:39
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub trait GeneratorExt<R>: core::ops::Generator<R> {
[INFO] [stdout]    |                                       ^^^^^^^^^ not found in `core::ops`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `generator_trait`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generator_trait, never_type)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Return` not found for `G`
[INFO] [stdout]   --> src/iter.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Completed(G::Return),
[INFO] [stdout]    |                  ^^^^^^ there is an associated type `Return` in the trait `Coroutine`
[INFO] [stdout]    |
[INFO] [stdout] help: consider further restricting type parameter `G` with unstable trait `Coroutine`
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub enum FusedGenIterator<G: Generator<()> + Coroutine</* R */>> {
[INFO] [stdout]    |                                            ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Return` not found for `G`
[INFO] [stdout]   --> src/iter.rs:77:36
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn into_return(self) -> G::Return {
[INFO] [stdout]    |                                    ^^^^^^ there is an associated type `Return` in the trait `Coroutine`
[INFO] [stdout]    |
[INFO] [stdout] help: consider further restricting type parameter `G` with unstable trait `Coroutine`
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl<G: Generator<()> + Unpin + Coroutine</* R */>> FusedGenIterator<G> {
[INFO] [stdout]    |                               ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0220, E0405, E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0220`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simple-generators-util` (lib) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "05b3fb0287bb7c062fd791995e8f6acbb44bb4a23111661538b7d2c80660a9da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05b3fb0287bb7c062fd791995e8f6acbb44bb4a23111661538b7d2c80660a9da", kill_on_drop: false }`
[INFO] [stdout] 05b3fb0287bb7c062fd791995e8f6acbb44bb4a23111661538b7d2c80660a9da