[INFO] fetching crate lunatic-runtime 0.3.3...
[INFO] documenting lunatic-runtime-0.3.3 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate lunatic-runtime 0.3.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate lunatic-runtime 0.3.3 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lunatic-runtime 0.3.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate lunatic-runtime 0.3.3
[INFO] tweaked toml for crates.io crate lunatic-runtime 0.3.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate lunatic-runtime 0.3.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0147379fd4675c80c877a587d13098396dcd9f61012649834b7b4c51fe7257ac
[INFO] running `Command { std: "docker" "start" "-a" "0147379fd4675c80c877a587d13098396dcd9f61012649834b7b4c51fe7257ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0147379fd4675c80c877a587d13098396dcd9f61012649834b7b4c51fe7257ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0147379fd4675c80c877a587d13098396dcd9f61012649834b7b4c51fe7257ac", kill_on_drop: false }`
[INFO] [stdout] 0147379fd4675c80c877a587d13098396dcd9f61012649834b7b4c51fe7257ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e807bce1b3d2326cd85fe860d59e869eefd573a20b7388493a4d05d59e2ddb0b
[INFO] running `Command { std: "docker" "start" "-a" "e807bce1b3d2326cd85fe860d59e869eefd573a20b7388493a4d05d59e2ddb0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling target-lexicon v0.12.0
[INFO] [stderr]     Checking wasmparser v0.77.0
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling zstd-safe v3.0.1+zstd.1.4.9
[INFO] [stderr]     Checking vec-arena v1.1.0
[INFO] [stderr]    Compiling wasmtime-cache v0.26.0
[INFO] [stderr]    Compiling signal-hook v0.3.8
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking easy-parallel v3.1.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling cpp_demangle v0.3.2
[INFO] [stderr]     Checking wast v35.0.1
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking switcheroo v0.2.8
[INFO] [stderr]     Checking env_logger v0.7.1
[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/switcheroo-0.2.8/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(asm, naked_functions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `rbx`: rbx is used internally by LLVM and cannot be used as an operand for inline asm
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/switcheroo-0.2.8/src/arch/unix_x64.rs:92:23
[INFO] [stdout]    |
[INFO] [stdout] 92 |         out("rax") _, out("rbx") _,
[INFO] [stdout]    |                       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `rbx`: rbx is used internally by LLVM and cannot be used as an operand for inline asm
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/switcheroo-0.2.8/src/arch/unix_x64.rs:143:23
[INFO] [stdout]     |
[INFO] [stdout] 143 |         out("rax") _, out("rbx") _, out("rcx") _,
[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 `switcheroo`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e807bce1b3d2326cd85fe860d59e869eefd573a20b7388493a4d05d59e2ddb0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e807bce1b3d2326cd85fe860d59e869eefd573a20b7388493a4d05d59e2ddb0b", kill_on_drop: false }`
[INFO] [stdout] e807bce1b3d2326cd85fe860d59e869eefd573a20b7388493a4d05d59e2ddb0b
