[INFO] fetching crate dst-container 0.1.3...
[INFO] testing dst-container-0.1.3 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate dst-container 0.1.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate dst-container 0.1.3
[INFO] finished tweaking crates.io crate dst-container 0.1.3
[INFO] tweaked toml for crates.io crate dst-container 0.1.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dst-container 0.1.3 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dst-container 0.1.3 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_datetime v0.7.1
[INFO] [stderr]   Downloaded toml_edit v0.23.5
[INFO] [stderr]   Downloaded dst-container-derive v0.1.1
[INFO] [stderr]   Downloaded toml_parser v1.0.2
[INFO] [stderr]   Downloaded serde_core v1.0.225
[INFO] [stderr]   Downloaded serde_derive v1.0.225
[INFO] [stderr]   Downloaded indexmap v2.11.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4d47fdfbc04397d52950e7581a65240a9209fd0dbfc7cf6a7b2e9ecbd9af0f7f
[INFO] running `Command { std: "docker" "start" "4d47fdfbc04397d52950e7581a65240a9209fd0dbfc7cf6a7b2e9ecbd9af0f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d47fdfbc04397d52950e7581a65240a9209fd0dbfc7cf6a7b2e9ecbd9af0f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4d47fdfbc04397d52950e7581a65240a9209fd0dbfc7cf6a7b2e9ecbd9af0f7f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d47fdfbc04397d52950e7581a65240a9209fd0dbfc7cf6a7b2e9ecbd9af0f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4d47fdfbc04397d52950e7581a65240a9209fd0dbfc7cf6a7b2e9ecbd9af0f7f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling toml_datetime v0.7.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling indexmap v2.11.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling toml_parser v1.0.2
[INFO] [stderr]    Compiling toml_edit v0.23.5
[INFO] [stderr]    Compiling proc-macro-crate v3.4.0
[INFO] [stderr]    Compiling dst-container-derive v0.1.1
[INFO] [stderr]    Compiling dst-container v0.1.3 (/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(allocator_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `layout_for_ptr` has been stable since 1.99.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(layout_for_ptr)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `maybe_uninit_write_slice` has been stable since 1.93.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(maybe_uninit_write_slice)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait cannot be implemented outside `core`
[INFO] [stdout]    --> src/fixed_vec.rs:849:1
[INFO] [stdout]     |
[INFO] [stdout] 849 | unsafe impl<T: ?Sized> SliceIndex<FixedVec<T>> for usize {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: trait restricted here
[INFO] [stdout]    --> /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/slice/index.rs:124:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait cannot be implemented outside `core`
[INFO] [stdout]    --> src/fixed_vec.rs:885:1
[INFO] [stdout]     |
[INFO] [stdout] 885 | unsafe impl<T: ?Sized> SliceIndex<FixedVec<T>> for RangeFull {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: trait restricted here
[INFO] [stdout]    --> /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/slice/index.rs:124:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dst-container` (lib) due to 3 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4d47fdfbc04397d52950e7581a65240a9209fd0dbfc7cf6a7b2e9ecbd9af0f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d47fdfbc04397d52950e7581a65240a9209fd0dbfc7cf6a7b2e9ecbd9af0f7f", kill_on_drop: false }`
[INFO] [stdout] 4d47fdfbc04397d52950e7581a65240a9209fd0dbfc7cf6a7b2e9ecbd9af0f7f
