[INFO] updating cached repository Fylipp/brainfuck-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Fylipp/brainfuck-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Fylipp/brainfuck-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/Fylipp/brainfuck-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Fylipp/brainfuck-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Fylipp/brainfuck-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Fylipp/brainfuck-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Fylipp/brainfuck-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1226d563ecff611f52e849cba4aa819c7cd56689
[INFO] sha for GitHub repo Fylipp/brainfuck-rs: 1226d563ecff611f52e849cba4aa819c7cd56689
[INFO] validating manifest of Fylipp/brainfuck-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 Fylipp/brainfuck-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 Fylipp/brainfuck-rs
[INFO] finished frobbing Fylipp/brainfuck-rs
[INFO] frobbed toml for Fylipp/brainfuck-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/Fylipp/brainfuck-rs/Cargo.toml
[INFO] started frobbing Fylipp/brainfuck-rs
[INFO] finished frobbing Fylipp/brainfuck-rs
[INFO] frobbed toml for Fylipp/brainfuck-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Fylipp/brainfuck-rs/Cargo.toml
[INFO] crate Fylipp/brainfuck-rs 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 Fylipp/brainfuck-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-2/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/Fylipp/brainfuck-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] 8802b8232afd94ef5a4efafa5da99015e3d0ad184b75acdaeda4f1940f9bc431
[INFO] running `"docker" "start" "-a" "8802b8232afd94ef5a4efafa5da99015e3d0ad184b75acdaeda4f1940f9bc431"`
[INFO] [stderr]    Compiling brainfuck-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(inclusive_range)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing field `is_empty` in initializer of `std::ops::RangeInclusive<_>`
[INFO] [stderr]   --> src/bfr/rt/mod.rs:78:35
[INFO] [stderr]    |
[INFO] [stderr] 78 |                         for i in (std::ops::RangeInclusive {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^ missing `is_empty`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0063, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0063`.
[INFO] [stderr] error: Could not compile `brainfuck-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8802b8232afd94ef5a4efafa5da99015e3d0ad184b75acdaeda4f1940f9bc431"`
[INFO] running `"docker" "rm" "-f" "8802b8232afd94ef5a4efafa5da99015e3d0ad184b75acdaeda4f1940f9bc431"`
[INFO] [stdout] 8802b8232afd94ef5a4efafa5da99015e3d0ad184b75acdaeda4f1940f9bc431