[INFO] fetching crate timing-shield 0.3.0...
[INFO] testing timing-shield-0.3.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate timing-shield 0.3.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate timing-shield 0.3.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate timing-shield 0.3.0
[INFO] finished tweaking crates.io crate timing-shield 0.3.0
[INFO] tweaked toml for crates.io crate timing-shield 0.3.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22ff8cac671272cde860acbc8a80ac29a11a96010ef2548e2d849e020de3a690
[INFO] running `Command { std: "docker" "start" "-a" "22ff8cac671272cde860acbc8a80ac29a11a96010ef2548e2d849e020de3a690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22ff8cac671272cde860acbc8a80ac29a11a96010ef2548e2d849e020de3a690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22ff8cac671272cde860acbc8a80ac29a11a96010ef2548e2d849e020de3a690", kill_on_drop: false }`
[INFO] [stdout] 22ff8cac671272cde860acbc8a80ac29a11a96010ef2548e2d849e020de3a690
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f0de0ef0a8bc19fe03402479144a42c26cee9404534711ab6b9861866d5a2b7
[INFO] running `Command { std: "docker" "start" "-a" "3f0de0ef0a8bc19fe03402479144a42c26cee9404534711ab6b9861866d5a2b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling timing-shield v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![feature(min_specialization)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `timing-shield` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3f0de0ef0a8bc19fe03402479144a42c26cee9404534711ab6b9861866d5a2b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f0de0ef0a8bc19fe03402479144a42c26cee9404534711ab6b9861866d5a2b7", kill_on_drop: false }`
[INFO] [stdout] 3f0de0ef0a8bc19fe03402479144a42c26cee9404534711ab6b9861866d5a2b7
[INFO] testing timing-shield-0.3.0 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate timing-shield 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate timing-shield 0.3.0 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate timing-shield 0.3.0
[INFO] finished tweaking crates.io crate timing-shield 0.3.0
[INFO] tweaked toml for crates.io crate timing-shield 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 843d48942c2a6421b465f5faae6375c1f3b35c0b883e3c4f3efb95f31ede33bf
[INFO] running `Command { std: "docker" "start" "-a" "843d48942c2a6421b465f5faae6375c1f3b35c0b883e3c4f3efb95f31ede33bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "843d48942c2a6421b465f5faae6375c1f3b35c0b883e3c4f3efb95f31ede33bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "843d48942c2a6421b465f5faae6375c1f3b35c0b883e3c4f3efb95f31ede33bf", kill_on_drop: false }`
[INFO] [stdout] 843d48942c2a6421b465f5faae6375c1f3b35c0b883e3c4f3efb95f31ede33bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87e33e9a2865e9465a449e6f627bdba1c570f6dbbf4ec702879146bbeff01041
[INFO] running `Command { std: "docker" "start" "-a" "87e33e9a2865e9465a449e6f627bdba1c570f6dbbf4ec702879146bbeff01041", kill_on_drop: false }`
[INFO] [stderr]    Compiling timing-shield v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![feature(min_specialization)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `timing-shield` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "87e33e9a2865e9465a449e6f627bdba1c570f6dbbf4ec702879146bbeff01041", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87e33e9a2865e9465a449e6f627bdba1c570f6dbbf4ec702879146bbeff01041", kill_on_drop: false }`
[INFO] [stdout] 87e33e9a2865e9465a449e6f627bdba1c570f6dbbf4ec702879146bbeff01041
