[INFO] fetching crate report-test 0.3.1...
[INFO] documenting report-test-0.3.1 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate report-test 0.3.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate report-test 0.3.1 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 report-test 0.3.1
[INFO] finished tweaking crates.io crate report-test 0.3.1
[INFO] tweaked toml for crates.io crate report-test 0.3.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 00ad95af7c1b1efab3f6f156bcba77cc8235c50c16e8d3ad2ce6716673171171
[INFO] running `Command { std: "docker" "start" "-a" "00ad95af7c1b1efab3f6f156bcba77cc8235c50c16e8d3ad2ce6716673171171", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00ad95af7c1b1efab3f6f156bcba77cc8235c50c16e8d3ad2ce6716673171171", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00ad95af7c1b1efab3f6f156bcba77cc8235c50c16e8d3ad2ce6716673171171", kill_on_drop: false }`
[INFO] [stdout] 00ad95af7c1b1efab3f6f156bcba77cc8235c50c16e8d3ad2ce6716673171171
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 56c07bdb916eeb817e4684d65e34e1b67983feec354027e4dbf3ca9e6297b554
[INFO] running `Command { std: "docker" "start" "-a" "56c07bdb916eeb817e4684d65e34e1b67983feec354027e4dbf3ca9e6297b554", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking fortanix-sgx-abi v0.3.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]     Checking miniz_oxide v0.4.4
[INFO] [stderr]     Checking sgx-isa v0.3.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking sgxs v0.7.2
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking enclave-runner v0.4.1
[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/enclave-runner-0.4.1/src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(llvm_asm)]
[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 `enclave-runner`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "56c07bdb916eeb817e4684d65e34e1b67983feec354027e4dbf3ca9e6297b554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56c07bdb916eeb817e4684d65e34e1b67983feec354027e4dbf3ca9e6297b554", kill_on_drop: false }`
[INFO] [stdout] 56c07bdb916eeb817e4684d65e34e1b67983feec354027e4dbf3ca9e6297b554
