[INFO] updating cached repository ojhunt/rustrt
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ojhunt/rustrt
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ojhunt/rustrt" "work/ex/beta-1.38-1/sources/1.37.0/gh/ojhunt/rustrt"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ojhunt/rustrt'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  46% (123/263)   
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[INFO] running `"git" "clone" "work/cache/sources/gh/ojhunt/rustrt" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ojhunt/rustrt"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ojhunt/rustrt'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7d53dea5ecd5bef783fd5af927d35efdfe24ca0e
[INFO] sha for GitHub repo ojhunt/rustrt: 7d53dea5ecd5bef783fd5af927d35efdfe24ca0e
[INFO] validating manifest of ojhunt/rustrt 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 ojhunt/rustrt 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 ojhunt/rustrt
[INFO] removed 0 missing examples
[INFO] finished frobbing ojhunt/rustrt
[INFO] frobbed toml for ojhunt/rustrt written to work/ex/beta-1.38-1/sources/1.37.0/gh/ojhunt/rustrt/Cargo.toml
[INFO] started frobbing ojhunt/rustrt
[INFO] removed 0 missing examples
[INFO] finished frobbing ojhunt/rustrt
[INFO] frobbed toml for ojhunt/rustrt written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ojhunt/rustrt/Cargo.toml
[INFO] crate ojhunt/rustrt 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing ojhunt/rustrt against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ojhunt/rustrt:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] c1fe0b50cceda47be51b343d65ef40e4ca21e0ace1cbbfd8daec29fdadc78e80
[INFO] running `"docker" "start" "-a" "c1fe0b50cceda47be51b343d65ef40e4ca21e0ace1cbbfd8daec29fdadc78e80"`
[INFO] [stderr] warning: unused manifest key: example.0.lto
[INFO] [stderr] warning: unused manifest key: lib.lto
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling packed_simd v0.3.3
[INFO] [stderr]    Compiling order-stat v0.1.3
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling clap v2.33.0 (https://github.com/clap-rs/clap.git#784524f7)
[INFO] [stderr]    Compiling png v0.14.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[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/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 genmesh v0.6.2
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]    Compiling obj v0.9.0
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling image v0.21.0
[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" "c1fe0b50cceda47be51b343d65ef40e4ca21e0ace1cbbfd8daec29fdadc78e80"`
[INFO] running `"docker" "rm" "-f" "c1fe0b50cceda47be51b343d65ef40e4ca21e0ace1cbbfd8daec29fdadc78e80"`
[INFO] [stdout] c1fe0b50cceda47be51b343d65ef40e4ca21e0ace1cbbfd8daec29fdadc78e80