[INFO] crate rangeinfo 0.1.1 is already in cache
[INFO] testing rangeinfo-0.1.1 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate rangeinfo 0.1.1 into work/builds/worker-8/source
[INFO] validating manifest of crates.io crate rangeinfo 0.1.1 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rangeinfo 0.1.1
[INFO] finished tweaking crates.io crate rangeinfo 0.1.1
[INFO] tweaked toml for crates.io crate rangeinfo 0.1.1 written to work/builds/worker-8/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] aa7b38b00f8e16f1c2f1861b2d464c963dd5181de19279983425a772c41da2e5
[INFO] running `"docker" "start" "-a" "aa7b38b00f8e16f1c2f1861b2d464c963dd5181de19279983425a772c41da2e5"`
[INFO] [stderr]    Compiling rangeinfo v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(inclusive_range,inclusive_range_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0616]: field `start` of struct `std::ops::RangeInclusive` is private
[INFO] [stderr]   --> src/lib.rs:53:26
[INFO] [stderr]    |
[INFO] [stderr] 53 |             start:Closed(self.start.clone()),
[INFO] [stderr]    |                          ^^^^^-----
[INFO] [stderr]    |                               |
[INFO] [stderr]    |                               help: a method `start` also exists, call it with parentheses: `start()`
[INFO] [stderr] 
[INFO] [stderr] error[E0616]: field `end` of struct `std::ops::RangeInclusive` is private
[INFO] [stderr]   --> src/lib.rs:54:24
[INFO] [stderr]    |
[INFO] [stderr] 54 |             end:Closed(self.end.clone()),
[INFO] [stderr]    |                        ^^^^^---
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: a method `end` also exists, call it with parentheses: `end()`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0616.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `rangeinfo`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "aa7b38b00f8e16f1c2f1861b2d464c963dd5181de19279983425a772c41da2e5"`
[INFO] running `"docker" "rm" "-f" "aa7b38b00f8e16f1c2f1861b2d464c963dd5181de19279983425a772c41da2e5"`
[INFO] [stdout] aa7b38b00f8e16f1c2f1861b2d464c963dd5181de19279983425a772c41da2e5