[INFO] fetching crate thread-object 0.2.0...
[INFO] testing thread-object-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate thread-object 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate thread-object 0.2.0 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 thread-object 0.2.0
[INFO] finished tweaking crates.io crate thread-object 0.2.0
[INFO] tweaked toml for crates.io crate thread-object 0.2.0 written to /workspace/builds/worker-9/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b81743283389c72696edf76e9f7d2c465072053b305ffc5796c7e1a9d08abe0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7b81743283389c72696edf76e9f7d2c465072053b305ffc5796c7e1a9d08abe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b81743283389c72696edf76e9f7d2c465072053b305ffc5796c7e1a9d08abe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b81743283389c72696edf76e9f7d2c465072053b305ffc5796c7e1a9d08abe0", kill_on_drop: false }`
[INFO] [stdout] 7b81743283389c72696edf76e9f7d2c465072053b305ffc5796c7e1a9d08abe0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1b604091d7ffaf299d519d493642abfb696b843a28585a171e00957c15640db4
[INFO] running `Command { std: "docker" "start" "-a" "1b604091d7ffaf299d519d493642abfb696b843a28585a171e00957c15640db4", kill_on_drop: false }`
[INFO] [stderr]    Compiling thread-object v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![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: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:32:56
[INFO] [stdout]    |
[INFO] [stdout] 32 |     static THREAD_OBJECTS: RefCell<BTreeMap<usize, Box<Any>>> = RefCell::new(BTreeMap::new());
[INFO] [stdout]    |                                                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 -     static THREAD_OBJECTS: RefCell<BTreeMap<usize, Box<Any>>> = RefCell::new(BTreeMap::new());
[INFO] [stdout] 32 +     static THREAD_OBJECTS: RefCell<BTreeMap<usize, Box<dyn Any>>> = RefCell::new(BTreeMap::new());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `thread-object` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1b604091d7ffaf299d519d493642abfb696b843a28585a171e00957c15640db4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b604091d7ffaf299d519d493642abfb696b843a28585a171e00957c15640db4", kill_on_drop: false }`
[INFO] [stdout] 1b604091d7ffaf299d519d493642abfb696b843a28585a171e00957c15640db4