[INFO] fetching crate sha2-const 0.1.2...
[INFO] testing sha2-const-0.1.2 against 1.75.0 for beta-1.76-1
[INFO] extracting crate sha2-const 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate sha2-const 0.1.2 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sha2-const 0.1.2
[INFO] finished tweaking crates.io crate sha2-const 0.1.2
[INFO] tweaked toml for crates.io crate sha2-const 0.1.2 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" "+1.75.0" "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" "+1.75.0" "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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39122545d9bffa1fbda5472b961e5ffea1c5240b08057132412c62dc26a4e52b
[INFO] running `Command { std: "docker" "start" "-a" "39122545d9bffa1fbda5472b961e5ffea1c5240b08057132412c62dc26a4e52b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39122545d9bffa1fbda5472b961e5ffea1c5240b08057132412c62dc26a4e52b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39122545d9bffa1fbda5472b961e5ffea1c5240b08057132412c62dc26a4e52b", kill_on_drop: false }`
[INFO] [stdout] 39122545d9bffa1fbda5472b961e5ffea1c5240b08057132412c62dc26a4e52b
[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" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 899bbf5beae53f9b19ff586722d7204ef258f77e868b04a052152eff106dcaf3
[INFO] running `Command { std: "docker" "start" "-a" "899bbf5beae53f9b19ff586722d7204ef258f77e868b04a052152eff106dcaf3", kill_on_drop: false }`
[INFO] [stderr]    Compiling sha2-const v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | #![feature(const_mut_refs)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `sha2-const` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "899bbf5beae53f9b19ff586722d7204ef258f77e868b04a052152eff106dcaf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "899bbf5beae53f9b19ff586722d7204ef258f77e868b04a052152eff106dcaf3", kill_on_drop: false }`
[INFO] [stdout] 899bbf5beae53f9b19ff586722d7204ef258f77e868b04a052152eff106dcaf3
[INFO] testing sha2-const-0.1.2 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate sha2-const 0.1.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate sha2-const 0.1.2 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sha2-const 0.1.2
[INFO] finished tweaking crates.io crate sha2-const 0.1.2
[INFO] tweaked toml for crates.io crate sha2-const 0.1.2 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-2023-12-22" "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-2023-12-22" "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-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e251f699fddf75ad698382fcb4f66c6f19d84167be55393e6740425c3fea8b6
[INFO] running `Command { std: "docker" "start" "-a" "3e251f699fddf75ad698382fcb4f66c6f19d84167be55393e6740425c3fea8b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e251f699fddf75ad698382fcb4f66c6f19d84167be55393e6740425c3fea8b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e251f699fddf75ad698382fcb4f66c6f19d84167be55393e6740425c3fea8b6", kill_on_drop: false }`
[INFO] [stdout] 3e251f699fddf75ad698382fcb4f66c6f19d84167be55393e6740425c3fea8b6
[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-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18c47a2959dc5011af096353da1a64c16c180c85bf2311bd8e032c6f71a23961
[INFO] running `Command { std: "docker" "start" "-a" "18c47a2959dc5011af096353da1a64c16c180c85bf2311bd8e032c6f71a23961", kill_on_drop: false }`
[INFO] [stderr]    Compiling sha2-const v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | #![feature(const_mut_refs)]
[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 `sha2-const` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "18c47a2959dc5011af096353da1a64c16c180c85bf2311bd8e032c6f71a23961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18c47a2959dc5011af096353da1a64c16c180c85bf2311bd8e032c6f71a23961", kill_on_drop: false }`
[INFO] [stdout] 18c47a2959dc5011af096353da1a64c16c180c85bf2311bd8e032c6f71a23961
