[INFO] crate fiveo 0.3.2 is already in cache
[INFO] extracting crate fiveo 0.3.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/fiveo/0.3.2
[INFO] extracting crate fiveo 0.3.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fiveo/0.3.2
[INFO] validating manifest of fiveo-0.3.2 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 fiveo-0.3.2 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 fiveo-0.3.2
[INFO] finished frobbing fiveo-0.3.2
[INFO] frobbed toml for fiveo-0.3.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/fiveo/0.3.2/Cargo.toml
[INFO] started frobbing fiveo-0.3.2
[INFO] finished frobbing fiveo-0.3.2
[INFO] frobbed toml for fiveo-0.3.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fiveo/0.3.2/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 fiveo-0.3.2 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/fiveo/0.3.2:/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] 5728787696bf6f50774fa254ebeff225b00a0c55db048dcf7932d9a12fdc7cdf
[INFO] running `"docker" "start" "-a" "5728787696bf6f50774fa254ebeff225b00a0c55db048dcf7932d9a12fdc7cdf"`
[INFO] [stderr]    Compiling fiveo v0.3.2 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:24:30
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn from(values: &mut Iterator<Item = char>) -> Self {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = char>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lib.rs:315:50
[INFO] [stderr]     |
[INFO] [stderr] 315 |                             '-' | '_' | ' ' | '0'...'9' => self.parameters.separator_bonus,
[INFO] [stderr]     |                                                  ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lib.rs:316:32
[INFO] [stderr]     |
[INFO] [stderr] 316 |                             'a'...'z' if candidate_char.is_uppercase() => {
[INFO] [stderr]     |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[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 `fiveo`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5728787696bf6f50774fa254ebeff225b00a0c55db048dcf7932d9a12fdc7cdf"`
[INFO] running `"docker" "rm" "-f" "5728787696bf6f50774fa254ebeff225b00a0c55db048dcf7932d9a12fdc7cdf"`
[INFO] [stdout] 5728787696bf6f50774fa254ebeff225b00a0c55db048dcf7932d9a12fdc7cdf