[INFO] fetching crate gen-iter 0.3.0... [INFO] testing gen-iter-0.3.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1 [INFO] extracting crate gen-iter 0.3.0 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate gen-iter 0.3.0 [INFO] finished tweaking crates.io crate gen-iter 0.3.0 [INFO] tweaked toml for crates.io crate gen-iter 0.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate gen-iter 0.3.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 385b135354033ae588617fc2c3c4a0510cd58ca2970e88871afdf143dccd8b09 [INFO] running `Command { std: "docker" "start" "-a" "385b135354033ae588617fc2c3c4a0510cd58ca2970e88871afdf143dccd8b09", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "385b135354033ae588617fc2c3c4a0510cd58ca2970e88871afdf143dccd8b09", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "385b135354033ae588617fc2c3c4a0510cd58ca2970e88871afdf143dccd8b09", kill_on_drop: false }` [INFO] [stdout] 385b135354033ae588617fc2c3c4a0510cd58ca2970e88871afdf143dccd8b09 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 01f4ad62aa9eca02dbe6fa0eb551385dacbddc52fcbd571388d52435a8f4a260 [INFO] running `Command { std: "docker" "start" "-a" "01f4ad62aa9eca02dbe6fa0eb551385dacbddc52fcbd571388d52435a8f4a260", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stderr] Compiling gen-iter v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:60:12 [INFO] [stdout] | [INFO] [stdout] 60 | #![feature(generators, generator_trait)] [INFO] [stdout] | ^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.75.0; see for more information [INFO] [stdout] = note: renamed to `coroutines` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0432]: unresolved imports `core::ops::Generator`, `core::ops::GeneratorState` [INFO] [stdout] --> src/gen_iter.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | use core::ops::{Generator, GeneratorState}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^^^ no `GeneratorState` in `ops` [INFO] [stdout] | | [INFO] [stdout] | no `Generator` in `ops` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0432]: unresolved imports `core::ops::Generator`, `core::ops::GeneratorState` [INFO] [stdout] --> src/gen_iter_return.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | use core::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/gen_iter.rs:86:13 [INFO] [stdout] | [INFO] [stdout] 86 | yield 1; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #43122 for more information [INFO] [stdout] = help: add `#![feature(yield_expr)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: yield syntax is experimental [INFO] [stdout] --> src/gen_iter.rs:87:13 [INFO] [stdout] | [INFO] [stdout] 87 | yield 2; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #43122 for more information [INFO] [stdout] = help: add `#![feature(yield_expr)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: yield syntax is experimental [INFO] [stdout] --> src/gen_iter_return.rs:110:13 [INFO] [stdout] | [INFO] [stdout] 110 | yield 1; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #43122 for more information [INFO] [stdout] = help: add `#![feature(yield_expr)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: yield syntax is experimental [INFO] [stdout] --> src/gen_iter_return.rs:133:13 [INFO] [stdout] | [INFO] [stdout] 133 | yield 1; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #43122 for more information [INFO] [stdout] = help: add `#![feature(yield_expr)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `generator_trait` [INFO] [stdout] --> src/lib.rs:60:24 [INFO] [stdout] | [INFO] [stdout] 60 | #![feature(generators, generator_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0432, 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 `gen-iter` (lib) due to 8 previous errors [INFO] running `Command { std: "docker" "inspect" "01f4ad62aa9eca02dbe6fa0eb551385dacbddc52fcbd571388d52435a8f4a260", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "01f4ad62aa9eca02dbe6fa0eb551385dacbddc52fcbd571388d52435a8f4a260", kill_on_drop: false }` [INFO] [stdout] 01f4ad62aa9eca02dbe6fa0eb551385dacbddc52fcbd571388d52435a8f4a260