[INFO] fetching crate panic-no-std 0.0.1...
[INFO] documenting panic-no-std-0.0.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate panic-no-std 0.0.1 into /workspace/builds/worker-1-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-1-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 exit-no-std v0.2.0
[INFO] [stderr]   Downloaded pc-ints v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] abb1ca3f8077204322085ff8efd14f2d796356dbf18abb52e55932f0f63063e8
[INFO] running `Command { std: "docker" "start" "-a" "abb1ca3f8077204322085ff8efd14f2d796356dbf18abb52e55932f0f63063e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abb1ca3f8077204322085ff8efd14f2d796356dbf18abb52e55932f0f63063e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abb1ca3f8077204322085ff8efd14f2d796356dbf18abb52e55932f0f63063e8", kill_on_drop: false }`
[INFO] [stdout] abb1ca3f8077204322085ff8efd14f2d796356dbf18abb52e55932f0f63063e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbd5682297533b5c3c3a092b2ce1ddd3c3a4dd8b429276fbc03fea94a7ae7442
[INFO] running `Command { std: "docker" "start" "-a" "cbd5682297533b5c3c3a092b2ce1ddd3c3a4dd8b429276fbc03fea94a7ae7442", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking exit-no-std v0.2.0
[INFO] [stderr]  Documenting 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 document `panic-no-std`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name panic_no_std src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=52cf717379de0f48 -L dependency=/opt/rustwide/target/debug/deps --extern exit_no_std=/opt/rustwide/target/debug/deps/libexit_no_std-6f9be3e4e62fe575.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-880738df89b4d58c.rmeta --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "cbd5682297533b5c3c3a092b2ce1ddd3c3a4dd8b429276fbc03fea94a7ae7442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbd5682297533b5c3c3a092b2ce1ddd3c3a4dd8b429276fbc03fea94a7ae7442", kill_on_drop: false }`
[INFO] [stdout] cbd5682297533b5c3c3a092b2ce1ddd3c3a4dd8b429276fbc03fea94a7ae7442
[INFO] documenting panic-no-std-0.0.1 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate panic-no-std 0.0.1 into /workspace/builds/worker-1-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-1-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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1251ac3275f2633473bf4e3261ced23754d8b6b35ba105dd2a71110343db0057
[INFO] running `Command { std: "docker" "start" "-a" "1251ac3275f2633473bf4e3261ced23754d8b6b35ba105dd2a71110343db0057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1251ac3275f2633473bf4e3261ced23754d8b6b35ba105dd2a71110343db0057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1251ac3275f2633473bf4e3261ced23754d8b6b35ba105dd2a71110343db0057", kill_on_drop: false }`
[INFO] [stdout] 1251ac3275f2633473bf4e3261ced23754d8b6b35ba105dd2a71110343db0057
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e0cb8689b2257bcd1e6e82fb3406bf769652814496c63dd473ba9d5d724460c
[INFO] running `Command { std: "docker" "start" "-a" "8e0cb8689b2257bcd1e6e82fb3406bf769652814496c63dd473ba9d5d724460c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking exit-no-std v0.2.0
[INFO] [stderr]  Documenting 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 document `panic-no-std`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name panic_no_std src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=72baac1ce2a876e7 -L dependency=/opt/rustwide/target/debug/deps --extern exit_no_std=/opt/rustwide/target/debug/deps/libexit_no_std-18f8e1e548639407.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-8e903a3f53c8fb39.rmeta --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "8e0cb8689b2257bcd1e6e82fb3406bf769652814496c63dd473ba9d5d724460c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e0cb8689b2257bcd1e6e82fb3406bf769652814496c63dd473ba9d5d724460c", kill_on_drop: false }`
[INFO] [stdout] 8e0cb8689b2257bcd1e6e82fb3406bf769652814496c63dd473ba9d5d724460c
