[INFO] fetching crate ref_clone 0.8.0...
[INFO] testing ref_clone-0.8.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate ref_clone 0.8.0 into /workspace/builds/worker-87/source
[INFO] validating manifest of crates.io crate ref_clone 0.8.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ref_clone 0.8.0
[INFO] finished tweaking crates.io crate ref_clone 0.8.0
[INFO] tweaked toml for crates.io crate ref_clone 0.8.0 written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b54a1078fa3f6d792646abcdc51f3e18aa4062df636fee8704aa8c11b658cf0c
[INFO] running `Command { std: "docker" "start" "-a" "b54a1078fa3f6d792646abcdc51f3e18aa4062df636fee8704aa8c11b658cf0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b54a1078fa3f6d792646abcdc51f3e18aa4062df636fee8704aa8c11b658cf0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b54a1078fa3f6d792646abcdc51f3e18aa4062df636fee8704aa8c11b658cf0c", kill_on_drop: false }`
[INFO] [stdout] b54a1078fa3f6d792646abcdc51f3e18aa4062df636fee8704aa8c11b658cf0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5efc3d68f3f3b0812f50f1fdb8cba4191c913350153b661739cff87f8d2e6151
[INFO] running `Command { std: "docker" "start" "-a" "5efc3d68f3f3b0812f50f1fdb8cba4191c913350153b661739cff87f8d2e6151", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling ref_clone_derive v0.7.0
[INFO] [stderr]    Compiling ref_clone v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | #![feature(const_generics)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in favor of `#![feature(adt_const_params)]` and `#![feature(generic_const_exprs)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Missing required bounds on IntoIter
[INFO] [stdout]   --> src/traits.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     type IntoIter<T: RefType>: Iterator<Item = Ref<'a, Self::Item, T>>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]    |                                                                       |
[INFO] [stdout]    |                                                                       help: add the required where clauses: `where Self: 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ref_clone` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "5efc3d68f3f3b0812f50f1fdb8cba4191c913350153b661739cff87f8d2e6151", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5efc3d68f3f3b0812f50f1fdb8cba4191c913350153b661739cff87f8d2e6151", kill_on_drop: false }`
[INFO] [stdout] 5efc3d68f3f3b0812f50f1fdb8cba4191c913350153b661739cff87f8d2e6151