[INFO] fetching crate ltv_derive 0.2.8...
[INFO] testing ltv_derive-0.2.8 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate ltv_derive 0.2.8 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate ltv_derive 0.2.8
[INFO] finished tweaking crates.io crate ltv_derive 0.2.8
[INFO] tweaked toml for crates.io crate ltv_derive 0.2.8 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ltv_derive 0.2.8 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ltv_derive_impl v0.2.11
[INFO] [stderr]   Downloaded ltv_derive v0.2.8
[INFO] [stderr]   Downloaded ltv v0.2.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 256eaf2923d03725a67d2837d1d9ce0f2d68ad3fe0964f18c0bd6468d7316d4b
[INFO] running `Command { std: "docker" "start" "-a" "256eaf2923d03725a67d2837d1d9ce0f2d68ad3fe0964f18c0bd6468d7316d4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "256eaf2923d03725a67d2837d1d9ce0f2d68ad3fe0964f18c0bd6468d7316d4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "256eaf2923d03725a67d2837d1d9ce0f2d68ad3fe0964f18c0bd6468d7316d4b", kill_on_drop: false }`
[INFO] [stdout] 256eaf2923d03725a67d2837d1d9ce0f2d68ad3fe0964f18c0bd6468d7316d4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a9bed529c8907c41059aad8703f3ffc5cc41a722b1b1df8a275e5780a7d3a57
[INFO] running `Command { std: "docker" "start" "-a" "5a9bed529c8907c41059aad8703f3ffc5cc41a722b1b1df8a275e5780a7d3a57", kill_on_drop: false }`
[INFO] [stderr]    Compiling ltv_derive_impl v0.2.11
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ltv_derive_impl-0.2.11/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.56.0; see <https://github.com/rust-lang/rust/pull/88369> for more information
[INFO] [stdout]   = note: removed in favor of `#![feature(adt_const_params)]` and `#![feature(generic_const_exprs)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ltv_derive_impl` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "5a9bed529c8907c41059aad8703f3ffc5cc41a722b1b1df8a275e5780a7d3a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a9bed529c8907c41059aad8703f3ffc5cc41a722b1b1df8a275e5780a7d3a57", kill_on_drop: false }`
[INFO] [stdout] 5a9bed529c8907c41059aad8703f3ffc5cc41a722b1b1df8a275e5780a7d3a57