[INFO] updating cached repository rileylyman/bug-free-barnacle
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rileylyman/bug-free-barnacle
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rileylyman/bug-free-barnacle" "work/ex/beta-1.38-1/sources/1.37.0/gh/rileylyman/bug-free-barnacle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rileylyman/bug-free-barnacle'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rileylyman/bug-free-barnacle" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rileylyman/bug-free-barnacle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rileylyman/bug-free-barnacle'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 21753f795d64eae9cb0a52f46c0baf2ed5c1f8eb
[INFO] sha for GitHub repo rileylyman/bug-free-barnacle: 21753f795d64eae9cb0a52f46c0baf2ed5c1f8eb
[INFO] validating manifest of rileylyman/bug-free-barnacle on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rileylyman/bug-free-barnacle on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rileylyman/bug-free-barnacle
[INFO] finished frobbing rileylyman/bug-free-barnacle
[INFO] frobbed toml for rileylyman/bug-free-barnacle written to work/ex/beta-1.38-1/sources/1.37.0/gh/rileylyman/bug-free-barnacle/Cargo.toml
[INFO] started frobbing rileylyman/bug-free-barnacle
[INFO] finished frobbing rileylyman/bug-free-barnacle
[INFO] frobbed toml for rileylyman/bug-free-barnacle written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rileylyman/bug-free-barnacle/Cargo.toml
[INFO] crate rileylyman/bug-free-barnacle already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rileylyman/bug-free-barnacle against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rileylyman/bug-free-barnacle:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 6fde27794d3a183f9ebebb2e6c1259416349dba75d508bf138b0a8f318676b91
[INFO] running `"docker" "start" "-a" "6fde27794d3a183f9ebebb2e6c1259416349dba75d508bf138b0a8f318676b91"`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling cc v1.0.35
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling packed_simd v0.3.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling semver v0.2.3
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]    Compiling cmake v0.1.38
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling glfw-sys v3.2.2
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd-0.3.3/src/lib.rs:202:1
[INFO] [stderr]     |
[INFO] [stderr] 202 | / #![feature(
[INFO] [stderr] 203 | |     repr_simd,
[INFO] [stderr] 204 | |     const_fn,
[INFO] [stderr] 205 | |     platform_intrinsics,
[INFO] [stderr] ...   |
[INFO] [stderr] 215 | |     custom_inner_attributes
[INFO] [stderr] 216 | | )]
[INFO] [stderr]     | |__^
[INFO] [stderr] 
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling simple_logger v1.0.1
[INFO] [stderr]    Compiling glfw v0.26.1 (https://github.com/bjz/glfw-rs.git#8b3cac7d)
[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 `packed_simd`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6fde27794d3a183f9ebebb2e6c1259416349dba75d508bf138b0a8f318676b91"`
[INFO] running `"docker" "rm" "-f" "6fde27794d3a183f9ebebb2e6c1259416349dba75d508bf138b0a8f318676b91"`
[INFO] [stdout] 6fde27794d3a183f9ebebb2e6c1259416349dba75d508bf138b0a8f318676b91