[INFO] fetching crate placid 0.1.1...
[INFO] testing placid-0.1.1 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate placid 0.1.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate placid 0.1.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate placid 0.1.1
[INFO] tweaked toml for crates.io crate placid 0.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate placid 0.1.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate placid 0.1.1 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" "+1.100.0-beta.1" "fetch" "--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: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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] 73349895bc6c306d208a89b0a9afc291ce11d9941b5bfdd30354f071f0114b3a
[INFO] running `Command { std: "docker" "start" "73349895bc6c306d208a89b0a9afc291ce11d9941b5bfdd30354f071f0114b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73349895bc6c306d208a89b0a9afc291ce11d9941b5bfdd30354f071f0114b3a", 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" "73349895bc6c306d208a89b0a9afc291ce11d9941b5bfdd30354f071f0114b3a" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73349895bc6c306d208a89b0a9afc291ce11d9941b5bfdd30354f071f0114b3a", 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" "73349895bc6c306d208a89b0a9afc291ce11d9941b5bfdd30354f071f0114b3a" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling syn v2.0.113
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling placid-macro v0.1.1
[INFO] [stderr]    Compiling placid v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:263:5
[INFO] [stdout]     |
[INFO] [stdout] 263 |     feature(tuple_trait, fn_traits, unboxed_closures, unsized_fn_params)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `allocator_api` has been partially stabilized since 1.100.0 and is succeeded by the feature `allocator_ext`
[INFO] [stdout]    --> src/lib.rs:265:12
[INFO] [stdout]     |
[INFO] [stdout] 265 | #![feature(allocator_api)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] help: if you are using features which are still unstable, change to using `allocator_ext`
[INFO] [stdout]     |
[INFO] [stdout] 265 - #![feature(allocator_api)]
[INFO] [stdout] 265 + #![feature(allocator_ext)]
[INFO] [stdout]     |
[INFO] [stdout] help: if you are using features which are now stable, remove this line
[INFO] [stdout]     |
[INFO] [stdout] 265 - #![feature(allocator_api)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot specialize on trait `Copy`
[INFO] [stdout]   --> src/init/slice.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl<T: Copy> SpecInitSlice<T> for &[T] {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `placid` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "73349895bc6c306d208a89b0a9afc291ce11d9941b5bfdd30354f071f0114b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73349895bc6c306d208a89b0a9afc291ce11d9941b5bfdd30354f071f0114b3a", kill_on_drop: false }`
[INFO] [stdout] 73349895bc6c306d208a89b0a9afc291ce11d9941b5bfdd30354f071f0114b3a
