[INFO] fetching crate bern-kernel-macros 0.3.0...
[INFO] documenting bern-kernel-macros-0.3.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate bern-kernel-macros 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate bern-kernel-macros 0.3.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bern-kernel-macros 0.3.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate bern-kernel-macros 0.3.0
[INFO] tweaked toml for crates.io crate bern-kernel-macros 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bern-conf-type v0.2.0
[INFO] [stderr]   Downloaded bern-arch v0.3.0
[INFO] [stderr]   Downloaded bern-conf v0.2.0
[INFO] [stderr]   Downloaded bern-units v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e62d2f28701c83d641972d43d6bf0af9a0c1436fc95415c9b2581ea8da831a03
[INFO] running `Command { std: "docker" "start" "-a" "e62d2f28701c83d641972d43d6bf0af9a0c1436fc95415c9b2581ea8da831a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e62d2f28701c83d641972d43d6bf0af9a0c1436fc95415c9b2581ea8da831a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e62d2f28701c83d641972d43d6bf0af9a0c1436fc95415c9b2581ea8da831a03", kill_on_drop: false }`
[INFO] [stdout] e62d2f28701c83d641972d43d6bf0af9a0c1436fc95415c9b2581ea8da831a03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 514fdc298bd06029b8e4d4482c2b0056ddd017ca87b9adba5c4d80fa32a9a707
[INFO] running `Command { std: "docker" "start" "-a" "514fdc298bd06029b8e4d4482c2b0056ddd017ca87b9adba5c4d80fa32a9a707", kill_on_drop: false }`
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling mockall_derive v0.11.4
[INFO] [stderr]    Compiling bern-arch v0.3.0
[INFO] [stderr]     Checking downcast v0.11.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking fragile v2.0.0
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stderr]     Checking bern-units v0.1.0
[INFO] [stderr]     Checking mockall v0.11.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bern-arch-0.3.0/src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(naked_functions)]
[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/github.com-1ecc6299db9ec823/bern-arch-0.3.0/src/lib.rs:16:38
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![cfg_attr(not(target_os = "none"), feature(never_type))]
[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 compile `bern-arch` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "514fdc298bd06029b8e4d4482c2b0056ddd017ca87b9adba5c4d80fa32a9a707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "514fdc298bd06029b8e4d4482c2b0056ddd017ca87b9adba5c4d80fa32a9a707", kill_on_drop: false }`
[INFO] [stdout] 514fdc298bd06029b8e4d4482c2b0056ddd017ca87b9adba5c4d80fa32a9a707
