[INFO] fetching crate panic-no-std 0.0.1...
[INFO] testing panic-no-std-0.0.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate panic-no-std 0.0.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate panic-no-std 0.0.1 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 panic-no-std 0.0.1
[INFO] finished tweaking crates.io crate panic-no-std 0.0.1
[INFO] tweaked toml for crates.io crate panic-no-std 0.0.1 written to /workspace/builds/worker-0-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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pc-ints v0.3.4
[INFO] [stderr]   Downloaded exit-no-std v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a43eeb6f6b73058d1fc13c450475b566dc38cabb5418e0b4a4626b3fc8a4742b
[INFO] running `Command { std: "docker" "start" "-a" "a43eeb6f6b73058d1fc13c450475b566dc38cabb5418e0b4a4626b3fc8a4742b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a43eeb6f6b73058d1fc13c450475b566dc38cabb5418e0b4a4626b3fc8a4742b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a43eeb6f6b73058d1fc13c450475b566dc38cabb5418e0b4a4626b3fc8a4742b", kill_on_drop: false }`
[INFO] [stdout] a43eeb6f6b73058d1fc13c450475b566dc38cabb5418e0b4a4626b3fc8a4742b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e79adc309827bf22b71850d2951000415ff2250aec2831228669ce502ce4caa4
[INFO] running `Command { std: "docker" "start" "-a" "e79adc309827bf22b71850d2951000415ff2250aec2831228669ce502ce4caa4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling exit-no-std v0.2.0
[INFO] [stderr]    Compiling panic-no-std v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(panic_info_message)]
[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 `panic-no-std` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e79adc309827bf22b71850d2951000415ff2250aec2831228669ce502ce4caa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e79adc309827bf22b71850d2951000415ff2250aec2831228669ce502ce4caa4", kill_on_drop: false }`
[INFO] [stdout] e79adc309827bf22b71850d2951000415ff2250aec2831228669ce502ce4caa4
[INFO] testing panic-no-std-0.0.1 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate panic-no-std 0.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate panic-no-std 0.0.1 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 panic-no-std 0.0.1
[INFO] finished tweaking crates.io crate panic-no-std 0.0.1
[INFO] tweaked toml for crates.io crate panic-no-std 0.0.1 written to /workspace/builds/worker-0-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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 45d757ce6085f6c9e665f3436a3290729551fca0fe575531a35be377ef266f21
[INFO] running `Command { std: "docker" "start" "-a" "45d757ce6085f6c9e665f3436a3290729551fca0fe575531a35be377ef266f21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45d757ce6085f6c9e665f3436a3290729551fca0fe575531a35be377ef266f21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45d757ce6085f6c9e665f3436a3290729551fca0fe575531a35be377ef266f21", kill_on_drop: false }`
[INFO] [stdout] 45d757ce6085f6c9e665f3436a3290729551fca0fe575531a35be377ef266f21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8b90885394f32c3e13d0bbf3701653c1aa76799e0d11a5564440360e8384bb5f
[INFO] running `Command { std: "docker" "start" "-a" "8b90885394f32c3e13d0bbf3701653c1aa76799e0d11a5564440360e8384bb5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling exit-no-std v0.2.0
[INFO] [stderr]    Compiling panic-no-std v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(panic_info_message)]
[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 `panic-no-std` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8b90885394f32c3e13d0bbf3701653c1aa76799e0d11a5564440360e8384bb5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b90885394f32c3e13d0bbf3701653c1aa76799e0d11a5564440360e8384bb5f", kill_on_drop: false }`
[INFO] [stdout] 8b90885394f32c3e13d0bbf3701653c1aa76799e0d11a5564440360e8384bb5f
