[INFO] fetching crate trait-cast 0.4.0...
[INFO] checking trait-cast-0.4.0 against 1.95.0 for pr-155915
[INFO] extracting crate trait-cast 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate trait-cast 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate trait-cast 0.4.0
[INFO] tweaked toml for crates.io crate trait-cast 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate trait-cast 0.4.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate trait-cast 0.4.0 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trait-cast-macros v0.4.0
[INFO] [stderr]   Downloaded cargo-manifest-proc-macros v0.4.3
[INFO] [stderr]   Downloaded winnow v0.6.24
[INFO] [stderr]   Downloaded toml_edit v0.23.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 375e0b2820b3023340cc61489ddf6783ee1581b04992cdff7c17a59b8823c103
[INFO] running `Command { std: "docker" "start" "-a" "375e0b2820b3023340cc61489ddf6783ee1581b04992cdff7c17a59b8823c103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "375e0b2820b3023340cc61489ddf6783ee1581b04992cdff7c17a59b8823c103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "375e0b2820b3023340cc61489ddf6783ee1581b04992cdff7c17a59b8823c103", kill_on_drop: false }`
[INFO] [stdout] 375e0b2820b3023340cc61489ddf6783ee1581b04992cdff7c17a59b8823c103
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e991d21958d8193b88e0e0523c893641a144d3868fdc4e893081a6ace7f0b054
[INFO] running `Command { std: "docker" "start" "-a" "e991d21958d8193b88e0e0523c893641a144d3868fdc4e893081a6ace7f0b054", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]    Compiling winnow v0.6.24
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling toml_parser v1.0.4
[INFO] [stderr]    Compiling toml_datetime v0.7.3
[INFO] [stderr]    Compiling indexmap v2.12.1
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling toml_edit v0.23.9
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling toml_edit v0.22.22
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]    Compiling cargo-manifest-proc-macros v0.4.3
[INFO] [stderr]    Compiling trait-cast-macros v0.4.0
[INFO] [stderr]     Checking trait-cast v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout]  8 | / #![feature(
[INFO] [stdout]  9 | |   const_type_name,    // Needed for `Debug` implementation
[INFO] [stdout] 10 | |   min_specialization, // Needed to unify the interface between downcast and traitcast (could be avoided with !Trait bounds or trai...
[INFO] [stdout] 11 | |   ptr_metadata,       // Needed to deal with pointer address(and provenance) separately from metadata
[INFO] [stdout] 12 | |   doc_cfg             // For nicer Docs
[INFO] [stdout] 13 | | )]
[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:8:1
[INFO] [stdout]    |
[INFO] [stdout]  8 | / #![feature(
[INFO] [stdout]  9 | |   const_type_name,    // Needed for `Debug` implementation
[INFO] [stdout] 10 | |   min_specialization, // Needed to unify the interface between downcast and traitcast (could be avoided with !Trait bounds or trai...
[INFO] [stdout] 11 | |   ptr_metadata,       // Needed to deal with pointer address(and provenance) separately from metadata
[INFO] [stdout] 12 | |   doc_cfg             // For nicer Docs
[INFO] [stdout] 13 | | )]
[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 `trait-cast` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `trait-cast` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e991d21958d8193b88e0e0523c893641a144d3868fdc4e893081a6ace7f0b054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e991d21958d8193b88e0e0523c893641a144d3868fdc4e893081a6ace7f0b054", kill_on_drop: false }`
[INFO] [stdout] e991d21958d8193b88e0e0523c893641a144d3868fdc4e893081a6ace7f0b054
