[INFO] cloning repository https://github.com/IvarWithoutBones/zebra
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/IvarWithoutBones/zebra" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIvarWithoutBones%2Fzebra", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIvarWithoutBones%2Fzebra'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bf8541a4829ecfd2d2303af4e658cfbdf1e4701
[INFO] documenting IvarWithoutBones/zebra 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%2FIvarWithoutBones%2Fzebra" "/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/IvarWithoutBones/zebra 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] removed /workspace/builds/worker-5-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/IvarWithoutBones/zebra
[INFO] finished tweaking git repo https://github.com/IvarWithoutBones/zebra
[INFO] tweaked toml for git repo https://github.com/IvarWithoutBones/zebra written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/IvarWithoutBones/zebra 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] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded binrw_derive v0.11.1
[INFO] [stderr]   Downloaded binrw v0.11.1
[INFO] [stderr]   Downloaded arbitrary-int v1.2.3
[INFO] [stderr]   Downloaded bitbybit v1.1.3
[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] f4b1f0e37d816c6bde84ea96fc04586796e5f6f171bd9c62f15a9047c6314bf4
[INFO] running `Command { std: "docker" "start" "-a" "f4b1f0e37d816c6bde84ea96fc04586796e5f6f171bd9c62f15a9047c6314bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4b1f0e37d816c6bde84ea96fc04586796e5f6f171bd9c62f15a9047c6314bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4b1f0e37d816c6bde84ea96fc04586796e5f6f171bd9c62f15a9047c6314bf4", kill_on_drop: false }`
[INFO] [stdout] f4b1f0e37d816c6bde84ea96fc04586796e5f6f171bd9c62f15a9047c6314bf4
[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] bbe835482b1bc4a722d09eb0980bf1e904a1ff09a31b91b50618a1d2383a4d95
[INFO] running `Command { std: "docker" "start" "-a" "bbe835482b1bc4a722d09eb0980bf1e904a1ff09a31b91b50618a1d2383a4d95", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling arbitrary-int v1.2.3
[INFO] [stderr]    Compiling librs v0.1.0 (/opt/rustwide/workdir/libs/librs)
[INFO] [stderr]    Compiling binrw_derive v0.11.1
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling binrw v0.11.1
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking array-init v2.1.0
[INFO] [stderr]    Compiling virtio v0.1.0 (/opt/rustwide/workdir/apps/virtio)
[INFO] [stderr]    Compiling log-server v0.1.0 (/opt/rustwide/workdir/apps/log)
[INFO] [stderr]    Compiling ustar v0.1.0 (/opt/rustwide/workdir/apps/ustar)
[INFO] [stderr]    Compiling init v0.1.0 (/opt/rustwide/workdir/apps/init)
[INFO] [stderr]    Compiling shell v0.1.0 (/opt/rustwide/workdir/apps/shell)
[INFO] [stderr]    Compiling zebra-kernel v0.1.0 (/opt/rustwide/workdir/kernel)
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir/apps/hello)
[INFO] [stderr]    Compiling bitbybit v1.1.3
[INFO] [stderr]     Checking syscall v0.1.0 (/opt/rustwide/workdir/libs/syscall)
[INFO] [stderr]     Checking uart v0.1.0 (/opt/rustwide/workdir/libs/uart)
[INFO] [stderr]  Documenting uart v0.1.0 (/opt/rustwide/workdir/libs/uart)
[INFO] [stderr]  Documenting syscall v0.1.0 (/opt/rustwide/workdir/libs/syscall)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> libs/syscall/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_test_frameworks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> libs/uart/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_test_frameworks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> libs/uart/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_test_frameworks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> libs/syscall/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_test_frameworks)]
[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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syscall` (lib) due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `syscall`
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[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 syscall libs/syscall/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=8929fc1de289abcf -L dependency=/opt/rustwide/target/debug/deps --extern bitbybit=/opt/rustwide/target/debug/deps/libbitbybit-bc392ac51d9e504d.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] error: could not document `uart`
[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 uart libs/uart/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=85e24ec2a8f2f822 -L dependency=/opt/rustwide/target/debug/deps --extern arbitrary_int=/opt/rustwide/target/debug/deps/libarbitrary_int-ba8965acd5c4ea3d.rmeta --extern bitbybit=/opt/rustwide/target/debug/deps/libbitbybit-bc392ac51d9e504d.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] error: could not compile `uart` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bbe835482b1bc4a722d09eb0980bf1e904a1ff09a31b91b50618a1d2383a4d95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbe835482b1bc4a722d09eb0980bf1e904a1ff09a31b91b50618a1d2383a4d95", kill_on_drop: false }`
[INFO] [stdout] bbe835482b1bc4a722d09eb0980bf1e904a1ff09a31b91b50618a1d2383a4d95
