[INFO] fetching crate aeiou 0.1.0... [INFO] testing aeiou-0.1.0 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate aeiou 0.1.0 into /workspace/builds/worker-26/source [INFO] validating manifest of crates.io crate aeiou 0.1.0 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-26/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: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bdcc57f6b3137bd4d5d210e4d84a7f90613870af4ec2e9385c85543d529e7c9d [INFO] running `Command { std: "docker" "start" "-a" "bdcc57f6b3137bd4d5d210e4d84a7f90613870af4ec2e9385c85543d529e7c9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bdcc57f6b3137bd4d5d210e4d84a7f90613870af4ec2e9385c85543d529e7c9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bdcc57f6b3137bd4d5d210e4d84a7f90613870af4ec2e9385c85543d529e7c9d", kill_on_drop: false }` [INFO] [stdout] bdcc57f6b3137bd4d5d210e4d84a7f90613870af4ec2e9385c85543d529e7c9d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 04ec57985423b542498cd435a142a9e8ae65ef82e23dba0264538d93a009d51a [INFO] running `Command { std: "docker" "start" "-a" "04ec57985423b542498cd435a142a9e8ae65ef82e23dba0264538d93a009d51a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling aeiou v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:7:1 [INFO] [stdout] | [INFO] [stdout] 7 | #![feature(generators, generator_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta 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: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `aeiou` due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "04ec57985423b542498cd435a142a9e8ae65ef82e23dba0264538d93a009d51a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "04ec57985423b542498cd435a142a9e8ae65ef82e23dba0264538d93a009d51a", kill_on_drop: false }` [INFO] [stdout] 04ec57985423b542498cd435a142a9e8ae65ef82e23dba0264538d93a009d51a