[INFO] cloning repository https://github.com/Zeno343/hexen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Zeno343/hexen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZeno343%2Fhexen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZeno343%2Fhexen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 445a5e0e9060757bd34f1ee2ef688129d1f76bb5
[INFO] documenting Zeno343/hexen against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZeno343%2Fhexen" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Zeno343/hexen 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 git repo https://github.com/Zeno343/hexen
[INFO] finished tweaking git repo https://github.com/Zeno343/hexen
[INFO] tweaked toml for git repo https://github.com/Zeno343/hexen written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Zeno343/hexen already has a lockfile, it will not be regenerated
[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] 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] 2cbd95f6df75297645811b8b6c11c2b57ea1fe27dd842524fb4fee9ce6726fd7
[INFO] running `Command { std: "docker" "start" "-a" "2cbd95f6df75297645811b8b6c11c2b57ea1fe27dd842524fb4fee9ce6726fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cbd95f6df75297645811b8b6c11c2b57ea1fe27dd842524fb4fee9ce6726fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cbd95f6df75297645811b8b6c11c2b57ea1fe27dd842524fb4fee9ce6726fd7", kill_on_drop: false }`
[INFO] [stdout] 2cbd95f6df75297645811b8b6c11c2b57ea1fe27dd842524fb4fee9ce6726fd7
[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] 2a4f503ec08f943a714c12ac4c3b13105aedcedb660f5e7f46ca288bb89b93ee
[INFO] running `Command { std: "docker" "start" "-a" "2a4f503ec08f943a714c12ac4c3b13105aedcedb660f5e7f46ca288bb89b93ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling rustix v0.38.25
[INFO] [stderr]    Compiling prettyplease v0.2.15
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling linux-raw-sys v0.4.11
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling home v0.5.5
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling bindgen v0.69.1
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v1.2.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling hexen v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking hex_math v0.0.1 (/opt/rustwide/workdir/crates/math)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> crates/math/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics)]
[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 `hex_math` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2a4f503ec08f943a714c12ac4c3b13105aedcedb660f5e7f46ca288bb89b93ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a4f503ec08f943a714c12ac4c3b13105aedcedb660f5e7f46ca288bb89b93ee", kill_on_drop: false }`
[INFO] [stdout] 2a4f503ec08f943a714c12ac4c3b13105aedcedb660f5e7f46ca288bb89b93ee
