[INFO] fetching crate c-gull 0.15.31...
[INFO] documenting c-gull-0.15.31 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate c-gull 0.15.31 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate c-gull 0.15.31 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 c-gull 0.15.31
[INFO] finished tweaking crates.io crate c-gull 0.15.31
[INFO] tweaked toml for crates.io crate c-gull 0.15.31 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 unwinding v0.2.1
[INFO] [stderr]   Downloaded realpath-ext v0.1.3
[INFO] [stderr]   Downloaded io-lifetimes v2.0.3
[INFO] [stderr]   Downloaded rand_pcg v0.3.1
[INFO] [stderr]   Downloaded cty v0.2.2
[INFO] [stderr]   Downloaded printf-compat v0.1.1
[INFO] [stderr]   Downloaded rustix-openpty v0.1.1
[INFO] [stderr]   Downloaded tz-rs v0.6.14
[INFO] [stderr]   Downloaded libm v0.2.8
[INFO] [stderr]   Downloaded cstr_core v0.2.6
[INFO] [stderr]   Downloaded memoffset v0.9.0
[INFO] [stderr]   Downloaded num-complex v0.4.4
[INFO] [stderr]   Downloaded env_logger v0.10.1
[INFO] [stderr]   Downloaded itertools v0.9.0
[INFO] [stderr]   Downloaded atomic-dbg v0.1.9
[INFO] [stderr]   Downloaded posix-regex v0.1.1
[INFO] [stderr]   Downloaded origin v0.17.0
[INFO] [stderr]   Downloaded rustix-futex-sync v0.2.1
[INFO] [stderr]   Downloaded rustix-dlmalloc v0.1.2
[INFO] [stderr]   Downloaded c-scape v0.15.40
[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] 1b111b6433061be548881e598ba4f2cf11c7bc9a43be2c6bdd8f6f1fc691d912
[INFO] running `Command { std: "docker" "start" "-a" "1b111b6433061be548881e598ba4f2cf11c7bc9a43be2c6bdd8f6f1fc691d912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b111b6433061be548881e598ba4f2cf11c7bc9a43be2c6bdd8f6f1fc691d912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b111b6433061be548881e598ba4f2cf11c7bc9a43be2c6bdd8f6f1fc691d912", kill_on_drop: false }`
[INFO] [stdout] 1b111b6433061be548881e598ba4f2cf11c7bc9a43be2c6bdd8f6f1fc691d912
[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] b077c9f2174654bc00812e6bd4983332378b8e484153fef1a664a84544f5879c
[INFO] running `Command { std: "docker" "start" "-a" "b077c9f2174654bc00812e6bd4983332378b8e484153fef1a664a84544f5879c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking errno v0.3.8
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling c-scape v0.15.40
[INFO] [stderr]     Checking posix-regex v0.1.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking tz-rs v0.6.14
[INFO] [stderr]     Checking realpath-ext v0.1.3
[INFO] [stderr]     Checking rand_core v0.6.4
[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/posix-regex-0.1.1/src/lib.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "no_std", feature(alloc))]
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/posix-regex-0.1.1/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `nll` has been stable since `1.63.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[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/posix-regex-0.1.1/src/lib.rs:2:41
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "no_std", feature(alloc))]
[INFO] [stdout]   |                                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 compile `posix-regex` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b077c9f2174654bc00812e6bd4983332378b8e484153fef1a664a84544f5879c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b077c9f2174654bc00812e6bd4983332378b8e484153fef1a664a84544f5879c", kill_on_drop: false }`
[INFO] [stdout] b077c9f2174654bc00812e6bd4983332378b8e484153fef1a664a84544f5879c
