[INFO] updating cached repository Riey/eraym-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] warning: no common commits
[INFO] [stderr] From git://github.com/Riey/eraym-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Riey/eraym-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/Riey/eraym-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Riey/eraym-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Riey/eraym-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Riey/eraym-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Riey/eraym-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] eb7ea4f2394347ed4725ccd9b74e46baa98a8501
[INFO] sha for GitHub repo Riey/eraym-rs: eb7ea4f2394347ed4725ccd9b74e46baa98a8501
[INFO] validating manifest of Riey/eraym-rs 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 Riey/eraym-rs 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 Riey/eraym-rs
[INFO] finished frobbing Riey/eraym-rs
[INFO] frobbed toml for Riey/eraym-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/Riey/eraym-rs/Cargo.toml
[INFO] started frobbing Riey/eraym-rs
[INFO] finished frobbing Riey/eraym-rs
[INFO] frobbed toml for Riey/eraym-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Riey/eraym-rs/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/Riey/rera`
[INFO] [stderr]     Updating git repository `https://github.com/Riey/quicksilver`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/Riey/rera`
[INFO] [stderr]     Updating git repository `https://github.com/Riey/quicksilver`
[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 Riey/eraym-rs 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-3/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/Riey/eraym-rs:/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] 0c03f585393139d4a58fa9804513757db1d1d73bc6e6b4d0161a241e429edddb
[INFO] running `"docker" "start" "-a" "0c03f585393139d4a58fa9804513757db1d1d73bc6e6b4d0161a241e429edddb"`
[INFO] [stderr]    Compiling nonzero_signed v1.0.3
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.2
[INFO] [stderr]    Compiling atomic-option v0.1.2
[INFO] [stderr]    Compiling shrev v1.1.1
[INFO] [stderr]    Compiling strum v0.13.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling pad v0.1.5
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling proc-macro-hack v0.4.2
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling shred-derive v0.5.1
[INFO] [stderr]    Compiling specs-derive v0.4.0
[INFO] [stderr]    Compiling strum_macros v0.13.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling mashup-impl v0.1.9
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling mashup v0.1.9
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling crossbeam v0.4.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling shred v0.7.2
[INFO] [stderr]    Compiling hibitset v0.5.4
[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/shred-0.7.2/src/lib.rs:57:34
[INFO] [stderr]    |
[INFO] [stderr] 57 | #![cfg_attr(feature = "nightly", feature(core_intrinsics))]
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling serde v1.0.99
[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 `shred`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "0c03f585393139d4a58fa9804513757db1d1d73bc6e6b4d0161a241e429edddb"`
[INFO] running `"docker" "rm" "-f" "0c03f585393139d4a58fa9804513757db1d1d73bc6e6b4d0161a241e429edddb"`
[INFO] [stdout] 0c03f585393139d4a58fa9804513757db1d1d73bc6e6b4d0161a241e429edddb