[INFO] fetching crate fortanix-sgx-tools 0.2.0...
[INFO] extracting crate fortanix-sgx-tools 0.2.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/fortanix-sgx-tools/0.2.0
[INFO] extracting crate fortanix-sgx-tools 0.2.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/fortanix-sgx-tools/0.2.0
[INFO] validating manifest of fortanix-sgx-tools-0.2.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fortanix-sgx-tools-0.2.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fortanix-sgx-tools-0.2.0
[INFO] finished frobbing fortanix-sgx-tools-0.2.0
[INFO] frobbed toml for fortanix-sgx-tools-0.2.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/fortanix-sgx-tools/0.2.0/Cargo.toml
[INFO] started frobbing fortanix-sgx-tools-0.2.0
[INFO] finished frobbing fortanix-sgx-tools-0.2.0
[INFO] frobbed toml for fortanix-sgx-tools-0.2.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/fortanix-sgx-tools/0.2.0/Cargo.toml
[INFO] crate fortanix-sgx-tools-0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing fortanix-sgx-tools-0.2.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/fortanix-sgx-tools/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] b983489d47fd5201143ef9f4a0d8ea406c8654656f3ccc09ed15cc98f29968a1
[INFO] running `"docker" "start" "-a" "b983489d47fd5201143ef9f4a0d8ea406c8654656f3ccc09ed15cc98f29968a1"`
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling byteorder v1.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling unicode-segmentation v1.1.0
[INFO] [stderr]    Compiling fortanix-sgx-abi v0.3.3
[INFO] [stderr]    Compiling zero v0.1.2
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling unix_socket2 v0.5.4
[INFO] [stderr]    Compiling atty v0.2.2
[INFO] [stderr]    Compiling sgx-isa v0.3.0
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling xmas-elf v0.6.2
[INFO] [stderr]    Compiling textwrap v0.6.0
[INFO] [stderr]    Compiling backtrace v0.3.12
[INFO] [stderr]    Compiling protoc v1.7.5
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling openssl-sys v0.9.48
[INFO] [stderr]    Compiling clap v2.25.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling protoc-rust v1.7.5
[INFO] [stderr]    Compiling aesm-client v0.2.0
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling sgxs v0.7.0
[INFO] [stderr]    Compiling sgxs-loaders v0.2.0
[INFO] [stderr]    Compiling enclave-runner v0.2.0
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/enclave-runner-0.2.0/src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(asm)]
[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 `enclave-runner`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "b983489d47fd5201143ef9f4a0d8ea406c8654656f3ccc09ed15cc98f29968a1"`
[INFO] running `"docker" "rm" "-f" "b983489d47fd5201143ef9f4a0d8ea406c8654656f3ccc09ed15cc98f29968a1"`
[INFO] [stdout] b983489d47fd5201143ef9f4a0d8ea406c8654656f3ccc09ed15cc98f29968a1