[INFO] fetching crate box-iter 0.1.0...
[INFO] checking box-iter-0.1.0 against 1.95.0 for pr-155915
[INFO] extracting crate box-iter 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate box-iter 0.1.0
[INFO] finished tweaking crates.io crate box-iter 0.1.0
[INFO] tweaked toml for crates.io crate box-iter 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate box-iter 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad7ea245a9a90eea4ea7ec5ee969824f86b3a8d8c90d2b1c74e3ac48e1d09cd5
[INFO] running `Command { std: "docker" "start" "-a" "ad7ea245a9a90eea4ea7ec5ee969824f86b3a8d8c90d2b1c74e3ac48e1d09cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad7ea245a9a90eea4ea7ec5ee969824f86b3a8d8c90d2b1c74e3ac48e1d09cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad7ea245a9a90eea4ea7ec5ee969824f86b3a8d8c90d2b1c74e3ac48e1d09cd5", kill_on_drop: false }`
[INFO] [stdout] ad7ea245a9a90eea4ea7ec5ee969824f86b3a8d8c90d2b1c74e3ac48e1d09cd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52b64b0ef670c4a7a0541053591080fb0c89d9a80fdb93afb26bc115676def2b
[INFO] running `Command { std: "docker" "start" "-a" "52b64b0ef670c4a7a0541053591080fb0c89d9a80fdb93afb26bc115676def2b", kill_on_drop: false }`
[INFO] [stderr]     Checking box-iter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `box-iter` (lib) due to 1 previous error
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(layout_for_ptr, allocator_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(layout_for_ptr, allocator_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `into_iter` will become ambiguous in Rust 2024
[INFO] [stdout]    --> src/lib.rs:130:21
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let array = vec!["hello".to_string(), "world".to_string()].into_boxed_slice().into_iter();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: disambiguate the associated function: `BoxIntoIter::into_iter(vec!["hello".to_string(), "world".to_string()].into_boxed_slice())`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/intoiterator-box-slice.html>
[INFO] [stdout]     = note: `#[warn(boxed_slice_into_iter)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `box-iter` (lib test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "52b64b0ef670c4a7a0541053591080fb0c89d9a80fdb93afb26bc115676def2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52b64b0ef670c4a7a0541053591080fb0c89d9a80fdb93afb26bc115676def2b", kill_on_drop: false }`
[INFO] [stdout] 52b64b0ef670c4a7a0541053591080fb0c89d9a80fdb93afb26bc115676def2b
