[INFO] fetching crate aeiou 0.1.0...
[INFO] testing aeiou-0.1.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate aeiou 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate aeiou 0.1.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aeiou 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate aeiou 0.1.0
[INFO] tweaked toml for crates.io crate aeiou 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate aeiou 0.1.0 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aeiou-macros v0.1.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.28
[INFO] [stderr]   Downloaded quote v1.0.9
[INFO] [stderr]   Downloaded syn v1.0.75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] debc7183646792a4610dede0785a95b59c4ba4206be41d004ecf8a8c827de782
[INFO] running `Command { std: "docker" "start" "-a" "debc7183646792a4610dede0785a95b59c4ba4206be41d004ecf8a8c827de782", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "debc7183646792a4610dede0785a95b59c4ba4206be41d004ecf8a8c827de782", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "debc7183646792a4610dede0785a95b59c4ba4206be41d004ecf8a8c827de782", kill_on_drop: false }`
[INFO] [stdout] debc7183646792a4610dede0785a95b59c4ba4206be41d004ecf8a8c827de782
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 983296a3fa2b83fb37b6273bec0de88028d9aeecf4c0d97318b5f1b7471d313c
[INFO] running `Command { std: "docker" "start" "-a" "983296a3fa2b83fb37b6273bec0de88028d9aeecf4c0d97318b5f1b7471d313c", kill_on_drop: false }`
[INFO] [stderr]    Compiling aeiou v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(generators, generator_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::ops::Generator`, `std::ops::GeneratorState`
[INFO] [stdout]  --> src/computation.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 |     ops::{Generator, GeneratorState},
[INFO] [stdout]   |           ^^^^^^^^^  ^^^^^^^^^^^^^^ no `GeneratorState` in `ops`
[INFO] [stdout]   |           |
[INFO] [stdout]   |           no `Generator` in `ops`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]    --> src/computation.rs:103:33
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   yield unhandled;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(generators, generator_trait)]
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `generator_trait`
[INFO] [stdout]  --> src/lib.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(generators, generator_trait)]
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0557, E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aeiou` (lib) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "983296a3fa2b83fb37b6273bec0de88028d9aeecf4c0d97318b5f1b7471d313c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "983296a3fa2b83fb37b6273bec0de88028d9aeecf4c0d97318b5f1b7471d313c", kill_on_drop: false }`
[INFO] [stdout] 983296a3fa2b83fb37b6273bec0de88028d9aeecf4c0d97318b5f1b7471d313c
