[INFO] crate enclave 0.1.4 is already in cache
[INFO] testing enclave-0.1.4 against 1.38.0 for beta-1.39-1
[INFO] extracting crate enclave 0.1.4 into work/builds/worker-2/source
[INFO] validating manifest of crates.io crate enclave 0.1.4 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate enclave 0.1.4
[INFO] finished tweaking crates.io crate enclave 0.1.4
[INFO] tweaked toml for crates.io crate enclave 0.1.4 written to work/builds/worker-2/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] e4bd55c309ead680f3f0f1335b2223e4115ecaa240ed02195a017f1d52f12b66
[INFO] running `"docker" "start" "-a" "e4bd55c309ead680f3f0f1335b2223e4115ecaa240ed02195a017f1d52f12b66"`
[INFO] [stderr]    Compiling spin v0.4.10
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling enclave v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling core_io v0.1.20190701
[INFO] [stderr]    Compiling sgx-isa v0.1.2
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.10/src/lib.rs:6:35
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
[INFO] [stderr]   |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `spin`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: use of deprecated item 'gcc::compile_library': crate has been renamed to `cc`, the `gcc` name is not maintained
[INFO] [stderr]   --> build.rs:93:2
[INFO] [stderr]    |
[INFO] [stderr] 93 |     gcc::compile_library("libaes.a", &["src/aes/asm_impl.S"]);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'gcc::Config': gcc::Config has been renamed to gcc::Build
[INFO] [stderr]   --> build.rs:95:16
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let mut entry=gcc::Config::new();
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'gcc::Build::new': crate has been renamed to `cc`, the `gcc` name is not maintained
[INFO] [stderr]   --> build.rs:95:16
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let mut entry=gcc::Config::new();
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e4bd55c309ead680f3f0f1335b2223e4115ecaa240ed02195a017f1d52f12b66"`
[INFO] running `"docker" "rm" "-f" "e4bd55c309ead680f3f0f1335b2223e4115ecaa240ed02195a017f1d52f12b66"`
[INFO] [stdout] e4bd55c309ead680f3f0f1335b2223e4115ecaa240ed02195a017f1d52f12b66