[INFO] crate ruse 0.1.0 is already in cache
[INFO] extracting crate ruse 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/ruse/0.1.0
[INFO] extracting crate ruse 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ruse/0.1.0
[INFO] validating manifest of ruse-0.1.0 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 ruse-0.1.0 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 ruse-0.1.0
[INFO] finished frobbing ruse-0.1.0
[INFO] frobbed toml for ruse-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/ruse/0.1.0/Cargo.toml
[INFO] started frobbing ruse-0.1.0
[INFO] finished frobbing ruse-0.1.0
[INFO] frobbed toml for ruse-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ruse/0.1.0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing ruse-0.1.0 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-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ruse/0.1.0:/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] 0ee29d68c972adedbfa8af9b9b355fe5dc75ce833b8e3799e4d289dc477243ef
[INFO] running `"docker" "start" "-a" "0ee29d68c972adedbfa8af9b9b355fe5dc75ce833b8e3799e4d289dc477243ef"`
[INFO] [stderr]    Compiling ruse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/ruse/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(question_mark)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ruse/read/error.rs:30:32
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/ruse/read/lex/token_iterator.rs:70:20
[INFO] [stderr]    |
[INFO] [stderr] 70 |                 '0'...'9' => {
[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/ruse/read/lex/token_iterator.rs:108:20
[INFO] [stderr]     |
[INFO] [stderr] 108 |                 'a'...'z' | 'A'...'Z' | '!' | '$' | '%' | '&' | '*' | '/' | ':' | '<' | '=' |
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/ruse/read/lex/token_iterator.rs:108:32
[INFO] [stderr]     |
[INFO] [stderr] 108 |                 'a'...'z' | 'A'...'Z' | '!' | '$' | '%' | '&' | '*' | '/' | ':' | '<' | '=' |
[INFO] [stderr]     |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/ruse/read/lex/token_iterator.rs:109:50
[INFO] [stderr]     |
[INFO] [stderr] 109 |                 '>' | '?' | '^' | '_' | '~' | '0'...'9' | '+' | '-' | '.' | '@' => {
[INFO] [stderr]     |                                                  ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/ruse/read/lex/token_iterator.rs:144:20
[INFO] [stderr]     |
[INFO] [stderr] 144 |                 '0'...'9' => return Some(self.parse_number(character)),
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/ruse/read/lex/token_iterator.rs:145:20
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 'a'...'z' | 'A'...'Z' | '!' | '$' | '%' | '&' | '*' | '/' | ':' | '<' | '=' |
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/ruse/read/lex/token_iterator.rs:145:32
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 'a'...'z' | 'A'...'Z' | '!' | '$' | '%' | '&' | '*' | '/' | ':' | '<' | '=' |
[INFO] [stderr]     |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ruse/read/parse/error.rs:33:35
[INFO] [stderr]    |
[INFO] [stderr] 33 |         write!(f, "{}", (self as &error::Error).description())
[INFO] [stderr]    |                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[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 `ruse`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0ee29d68c972adedbfa8af9b9b355fe5dc75ce833b8e3799e4d289dc477243ef"`
[INFO] running `"docker" "rm" "-f" "0ee29d68c972adedbfa8af9b9b355fe5dc75ce833b8e3799e4d289dc477243ef"`
[INFO] [stdout] 0ee29d68c972adedbfa8af9b9b355fe5dc75ce833b8e3799e4d289dc477243ef