[INFO] fetching crate iso 0.0.8...
[INFO] documenting iso-0.0.8 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate iso 0.0.8 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate iso 0.0.8 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 iso 0.0.8
[INFO] finished tweaking crates.io crate iso 0.0.8
[INFO] tweaked toml for crates.io crate iso 0.0.8 written to /workspace/builds/worker-5-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 iso-macro v0.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2e7208a7d8953fbe07fe8d44f2ae5482e17b7353cc14ba4738e0350a4b143531
[INFO] running `Command { std: "docker" "start" "-a" "2e7208a7d8953fbe07fe8d44f2ae5482e17b7353cc14ba4738e0350a4b143531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e7208a7d8953fbe07fe8d44f2ae5482e17b7353cc14ba4738e0350a4b143531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e7208a7d8953fbe07fe8d44f2ae5482e17b7353cc14ba4738e0350a4b143531", kill_on_drop: false }`
[INFO] [stdout] 2e7208a7d8953fbe07fe8d44f2ae5482e17b7353cc14ba4738e0350a4b143531
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] bdf966b8b5e69ace3d73335f889993eeee9108e5b5501d0764909cb60feb98bb
[INFO] running `Command { std: "docker" "start" "-a" "bdf966b8b5e69ace3d73335f889993eeee9108e5b5501d0764909cb60feb98bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling iso-macro v0.0.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/iso-macro-0.0.5/src/lib.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | #![feature(proc_macro_diagnostic)]
[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 `iso-macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bdf966b8b5e69ace3d73335f889993eeee9108e5b5501d0764909cb60feb98bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdf966b8b5e69ace3d73335f889993eeee9108e5b5501d0764909cb60feb98bb", kill_on_drop: false }`
[INFO] [stdout] bdf966b8b5e69ace3d73335f889993eeee9108e5b5501d0764909cb60feb98bb
[INFO] documenting iso-0.0.8 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate iso 0.0.8 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate iso 0.0.8 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 iso 0.0.8
[INFO] finished tweaking crates.io crate iso 0.0.8
[INFO] tweaked toml for crates.io crate iso 0.0.8 written to /workspace/builds/worker-5-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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6883236bcb66cbbe4583a3bb7b9d41b726870e99964ea3cfa973746322c48c01
[INFO] running `Command { std: "docker" "start" "-a" "6883236bcb66cbbe4583a3bb7b9d41b726870e99964ea3cfa973746322c48c01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6883236bcb66cbbe4583a3bb7b9d41b726870e99964ea3cfa973746322c48c01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6883236bcb66cbbe4583a3bb7b9d41b726870e99964ea3cfa973746322c48c01", kill_on_drop: false }`
[INFO] [stdout] 6883236bcb66cbbe4583a3bb7b9d41b726870e99964ea3cfa973746322c48c01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f4ac76a28811be42313bd9353c0615a569d2948c034cf1b02faf7e669ee41d63
[INFO] running `Command { std: "docker" "start" "-a" "f4ac76a28811be42313bd9353c0615a569d2948c034cf1b02faf7e669ee41d63", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling iso-macro v0.0.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/iso-macro-0.0.5/src/lib.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | #![feature(proc_macro_diagnostic)]
[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 `iso-macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f4ac76a28811be42313bd9353c0615a569d2948c034cf1b02faf7e669ee41d63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4ac76a28811be42313bd9353c0615a569d2948c034cf1b02faf7e669ee41d63", kill_on_drop: false }`
[INFO] [stdout] f4ac76a28811be42313bd9353c0615a569d2948c034cf1b02faf7e669ee41d63
