[INFO] fetching crate cluConstConcat 1.2.2...
[INFO] testing cluConstConcat-1.2.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate cluConstConcat 1.2.2 into /workspace/builds/worker-99/source
[INFO] validating manifest of crates.io crate cluConstConcat 1.2.2 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cluConstConcat 1.2.2
[INFO] finished tweaking crates.io crate cluConstConcat 1.2.2
[INFO] tweaked toml for crates.io crate cluConstConcat 1.2.2 written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e68c3f14887d22e0c5cb4e7f4986046271c4961534aa3c1c91440a366a3f4221
[INFO] running `Command { std: "docker" "start" "-a" "e68c3f14887d22e0c5cb4e7f4986046271c4961534aa3c1c91440a366a3f4221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e68c3f14887d22e0c5cb4e7f4986046271c4961534aa3c1c91440a366a3f4221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e68c3f14887d22e0c5cb4e7f4986046271c4961534aa3c1c91440a366a3f4221", kill_on_drop: false }`
[INFO] [stdout] e68c3f14887d22e0c5cb4e7f4986046271c4961534aa3c1c91440a366a3f4221
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa2b0e29b5cb1a0d43a3ab0c350778df199509cbdefc84c4507b24a67a6df3b1
[INFO] running `Command { std: "docker" "start" "-a" "fa2b0e29b5cb1a0d43a3ab0c350778df199509cbdefc84c4507b24a67a6df3b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cluConstConcat v1.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]    --> src/lib.rs:187:12
[INFO] [stdout]     |
[INFO] [stdout] 187 | #![feature(const_fn)]
[INFO] [stdout]     |            ^^^^^^^^ feature has been removed
[INFO] [stdout]     |
[INFO] [stdout]     = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `unions_with_drop_fields`
[INFO] [stdout]    --> src/lib.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 | #[allow(unions_with_drop_fields)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:185:1
[INFO] [stdout]     |
[INFO] [stdout] 185 | #![feature(const_fn_union)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]     |
[INFO] [stdout]     = help: the feature `const_fn_union` has been stable since 1.56.0 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:186:1
[INFO] [stdout]     |
[INFO] [stdout] 186 | #![feature(untagged_unions)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:187:1
[INFO] [stdout]     |
[INFO] [stdout] 187 | #![feature(const_fn)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:188:1
[INFO] [stdout]     |
[INFO] [stdout] 188 | #![feature(const_slice_len)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:189:1
[INFO] [stdout]     |
[INFO] [stdout] 189 | #![feature(const_str_as_bytes)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:190:1
[INFO] [stdout]     |
[INFO] [stdout] 190 | #![feature(const_raw_ptr_deref)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]     |
[INFO] [stdout]     = help: the feature `const_raw_ptr_deref` has been stable since 1.58.0 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:191:1
[INFO] [stdout]     |
[INFO] [stdout] 191 | #![feature(const_str_len)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0740]: unions cannot contain fields that may need dropping
[INFO] [stdout]    --> src/lib.rs:195:2
[INFO] [stdout]     |
[INFO] [stdout] 195 |     value: Value,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: a type is guaranteed not to need dropping when it implements `Copy`, or when it is the special `ManuallyDrop<_>` type
[INFO] [stdout] help: when the type does not implement `Copy`, wrap it inside a `ManuallyDrop<_>` and ensure it is manually dropped
[INFO] [stdout]     |
[INFO] [stdout] 195 |     value: std::mem::ManuallyDrop<Value>,
[INFO] [stdout]     |            +++++++++++++++++++++++     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557, E0740.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cluConstConcat` due to 10 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "fa2b0e29b5cb1a0d43a3ab0c350778df199509cbdefc84c4507b24a67a6df3b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa2b0e29b5cb1a0d43a3ab0c350778df199509cbdefc84c4507b24a67a6df3b1", kill_on_drop: false }`
[INFO] [stdout] fa2b0e29b5cb1a0d43a3ab0c350778df199509cbdefc84c4507b24a67a6df3b1