[INFO] fetching crate buffered-io 0.4.3...
[INFO] testing buffered-io-0.4.3 against 1.75.0 for beta-1.76-1
[INFO] extracting crate buffered-io 0.4.3 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate buffered-io 0.4.3 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] removed /workspace/builds/worker-7-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate buffered-io 0.4.3
[INFO] finished tweaking crates.io crate buffered-io 0.4.3
[INFO] tweaked toml for crates.io crate buffered-io 0.4.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded embedded-io-async v0.6.1
[INFO] [stderr]   Downloaded embedded-io-adapters v0.6.1
[INFO] [stderr]   Downloaded tokio-test v0.4.3
[INFO] [stderr]   Downloaded embedded-io v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9597d0c116e03a6103b92c337879a738323efb136d3eb6f8a8c311a495f7266c
[INFO] running `Command { std: "docker" "start" "-a" "9597d0c116e03a6103b92c337879a738323efb136d3eb6f8a8c311a495f7266c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9597d0c116e03a6103b92c337879a738323efb136d3eb6f8a8c311a495f7266c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9597d0c116e03a6103b92c337879a738323efb136d3eb6f8a8c311a495f7266c", kill_on_drop: false }`
[INFO] [stdout] 9597d0c116e03a6103b92c337879a738323efb136d3eb6f8a8c311a495f7266c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d5cb303b1b18bdac407d43876923478fea36681900b0de9c3bdbee215f5d739b
[INFO] running `Command { std: "docker" "start" "-a" "d5cb303b1b18bdac407d43876923478fea36681900b0de9c3bdbee215f5d739b", kill_on_drop: false }`
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling buffered-io v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(impl_trait_projections)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `impl_trait_projections` has been stable since `1.74.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(async_fn_in_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `async_fn_in_trait` has been stable since `1.75.0` and no longer requires an attribute to enable
[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 `buffered-io` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "d5cb303b1b18bdac407d43876923478fea36681900b0de9c3bdbee215f5d739b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5cb303b1b18bdac407d43876923478fea36681900b0de9c3bdbee215f5d739b", kill_on_drop: false }`
[INFO] [stdout] d5cb303b1b18bdac407d43876923478fea36681900b0de9c3bdbee215f5d739b
[INFO] testing buffered-io-0.4.3 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate buffered-io 0.4.3 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate buffered-io 0.4.3 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate buffered-io 0.4.3
[INFO] finished tweaking crates.io crate buffered-io 0.4.3
[INFO] tweaked toml for crates.io crate buffered-io 0.4.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5f8c96c7b9506c129a328074d7662f3ea446b9b2f889876a840c41730707c1c
[INFO] running `Command { std: "docker" "start" "-a" "b5f8c96c7b9506c129a328074d7662f3ea446b9b2f889876a840c41730707c1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5f8c96c7b9506c129a328074d7662f3ea446b9b2f889876a840c41730707c1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5f8c96c7b9506c129a328074d7662f3ea446b9b2f889876a840c41730707c1c", kill_on_drop: false }`
[INFO] [stdout] b5f8c96c7b9506c129a328074d7662f3ea446b9b2f889876a840c41730707c1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb6f794562ccf3dd0aaa797c8c52a8988cb0c820a910d124a1242f390b725d4d
[INFO] running `Command { std: "docker" "start" "-a" "cb6f794562ccf3dd0aaa797c8c52a8988cb0c820a910d124a1242f390b725d4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling buffered-io v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(impl_trait_projections)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `impl_trait_projections` has been stable since `1.74.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(async_fn_in_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `async_fn_in_trait` has been stable since `1.75.0` and no longer requires an attribute to enable
[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 `buffered-io` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "cb6f794562ccf3dd0aaa797c8c52a8988cb0c820a910d124a1242f390b725d4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb6f794562ccf3dd0aaa797c8c52a8988cb0c820a910d124a1242f390b725d4d", kill_on_drop: false }`
[INFO] [stdout] cb6f794562ccf3dd0aaa797c8c52a8988cb0c820a910d124a1242f390b725d4d
