[INFO] fetching crate lager 0.2.0...
[INFO] testing lager-0.2.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate lager 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate lager 0.2.0 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 lager 0.2.0
[INFO] finished tweaking crates.io crate lager 0.2.0
[INFO] tweaked toml for crates.io crate lager 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate lager 0.2.0 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 149d8cc61fd878026dda503157f9c03c8dc389f823ab2297d1455165f904c7ee
[INFO] running `Command { std: "docker" "start" "-a" "149d8cc61fd878026dda503157f9c03c8dc389f823ab2297d1455165f904c7ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "149d8cc61fd878026dda503157f9c03c8dc389f823ab2297d1455165f904c7ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "149d8cc61fd878026dda503157f9c03c8dc389f823ab2297d1455165f904c7ee", kill_on_drop: false }`
[INFO] [stdout] 149d8cc61fd878026dda503157f9c03c8dc389f823ab2297d1455165f904c7ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 92321cc5030904ae85c59d35f6d675ddb953dcc59b8c8cebd4e2ae080e07f9ea
[INFO] running `Command { std: "docker" "start" "-a" "92321cc5030904ae85c59d35f6d675ddb953dcc59b8c8cebd4e2ae080e07f9ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling lager v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_const_exprs)]
[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 `lager` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "92321cc5030904ae85c59d35f6d675ddb953dcc59b8c8cebd4e2ae080e07f9ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92321cc5030904ae85c59d35f6d675ddb953dcc59b8c8cebd4e2ae080e07f9ea", kill_on_drop: false }`
[INFO] [stdout] 92321cc5030904ae85c59d35f6d675ddb953dcc59b8c8cebd4e2ae080e07f9ea
[INFO] testing lager-0.2.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate lager 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate lager 0.2.0 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 lager 0.2.0
[INFO] finished tweaking crates.io crate lager 0.2.0
[INFO] tweaked toml for crates.io crate lager 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate lager 0.2.0 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" "+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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] dda3029a2dc25883f24149ef636209eafcaafdf0ddb816407ed755bfedd6076e
[INFO] running `Command { std: "docker" "start" "-a" "dda3029a2dc25883f24149ef636209eafcaafdf0ddb816407ed755bfedd6076e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dda3029a2dc25883f24149ef636209eafcaafdf0ddb816407ed755bfedd6076e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dda3029a2dc25883f24149ef636209eafcaafdf0ddb816407ed755bfedd6076e", kill_on_drop: false }`
[INFO] [stdout] dda3029a2dc25883f24149ef636209eafcaafdf0ddb816407ed755bfedd6076e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c66c20e3c1213ffdf128346fd54b90d70b32db7ac555c14a474ed43528012a3b
[INFO] running `Command { std: "docker" "start" "-a" "c66c20e3c1213ffdf128346fd54b90d70b32db7ac555c14a474ed43528012a3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling lager v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_const_exprs)]
[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 `lager` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c66c20e3c1213ffdf128346fd54b90d70b32db7ac555c14a474ed43528012a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c66c20e3c1213ffdf128346fd54b90d70b32db7ac555c14a474ed43528012a3b", kill_on_drop: false }`
[INFO] [stdout] c66c20e3c1213ffdf128346fd54b90d70b32db7ac555c14a474ed43528012a3b
