[INFO] fetching crate srfs 0.1.1...
[INFO] documenting srfs-0.1.1 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate srfs 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate srfs 0.1.1 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate srfs 0.1.1
[INFO] finished tweaking crates.io crate srfs 0.1.1
[INFO] tweaked toml for crates.io crate srfs 0.1.1 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" "+1.76.0" "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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded srfs-core v0.1.2
[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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2161bd5c2146387877f012da1853c16e04d64c18f409cdd73e06c9c63733bb08
[INFO] running `Command { std: "docker" "start" "-a" "2161bd5c2146387877f012da1853c16e04d64c18f409cdd73e06c9c63733bb08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2161bd5c2146387877f012da1853c16e04d64c18f409cdd73e06c9c63733bb08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2161bd5c2146387877f012da1853c16e04d64c18f409cdd73e06c9c63733bb08", kill_on_drop: false }`
[INFO] [stdout] 2161bd5c2146387877f012da1853c16e04d64c18f409cdd73e06c9c63733bb08
[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" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88b341f3273f2b5a73eb1d47f82f22913815870c7136d794fefe5602de8bcfbe
[INFO] running `Command { std: "docker" "start" "-a" "88b341f3273f2b5a73eb1d47f82f22913815870c7136d794fefe5602de8bcfbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling ahash v0.8.8
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking allocator-api2 v0.2.16
[INFO] [stderr]     Checking crc-catalog v2.4.0
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking crc v3.0.1
[INFO] [stderr]     Checking srfs-core v0.1.2
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking lru v0.12.2
[INFO] [stderr]  Documenting srfs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(const_option)]
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | #![feature(io_error_more)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `srfs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name srfs src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=3ff7c1974fef8869 -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-ec19d6b2a53154e2.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-c2b9fe8f0bb60ac5.rmeta --extern lru=/opt/rustwide/target/debug/deps/liblru-d5d46044d28f0443.rmeta --extern srfs_core=/opt/rustwide/target/debug/deps/libsrfs_core-28c0c975cb26957b.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "88b341f3273f2b5a73eb1d47f82f22913815870c7136d794fefe5602de8bcfbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b341f3273f2b5a73eb1d47f82f22913815870c7136d794fefe5602de8bcfbe", kill_on_drop: false }`
[INFO] [stdout] 88b341f3273f2b5a73eb1d47f82f22913815870c7136d794fefe5602de8bcfbe
[INFO] documenting srfs-0.1.1 against beta-2024-02-10 for beta-1.77-rustdoc-1
[INFO] extracting crate srfs 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate srfs 0.1.1 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate srfs 0.1.1
[INFO] finished tweaking crates.io crate srfs 0.1.1
[INFO] tweaked toml for crates.io crate srfs 0.1.1 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-2024-02-10" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-2024-02-10" "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-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8830271fd15bebcc95c0105fd58270cc5eff4ce1fcd708cd00e1398a272e292b
[INFO] running `Command { std: "docker" "start" "-a" "8830271fd15bebcc95c0105fd58270cc5eff4ce1fcd708cd00e1398a272e292b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8830271fd15bebcc95c0105fd58270cc5eff4ce1fcd708cd00e1398a272e292b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8830271fd15bebcc95c0105fd58270cc5eff4ce1fcd708cd00e1398a272e292b", kill_on_drop: false }`
[INFO] [stdout] 8830271fd15bebcc95c0105fd58270cc5eff4ce1fcd708cd00e1398a272e292b
[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-2024-02-10" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 607c675ba726893ce9ea24006531e80bccafe47004bd7b4134eb157e1549c139
[INFO] running `Command { std: "docker" "start" "-a" "607c675ba726893ce9ea24006531e80bccafe47004bd7b4134eb157e1549c139", kill_on_drop: false }`
[INFO] [stderr]    Compiling ahash v0.8.8
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking allocator-api2 v0.2.16
[INFO] [stderr]     Checking crc-catalog v2.4.0
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking crc v3.0.1
[INFO] [stderr]     Checking srfs-core v0.1.2
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking lru v0.12.2
[INFO] [stderr]  Documenting srfs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(const_option)]
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | #![feature(io_error_more)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `srfs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name srfs src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=d04813857656ce07 -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-b5dcbe16d0c57fcb.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-253dd6813867a002.rmeta --extern lru=/opt/rustwide/target/debug/deps/liblru-87209b0acfca3335.rmeta --extern srfs_core=/opt/rustwide/target/debug/deps/libsrfs_core-cf5066221b02d4e9.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "607c675ba726893ce9ea24006531e80bccafe47004bd7b4134eb157e1549c139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "607c675ba726893ce9ea24006531e80bccafe47004bd7b4134eb157e1549c139", kill_on_drop: false }`
[INFO] [stdout] 607c675ba726893ce9ea24006531e80bccafe47004bd7b4134eb157e1549c139
