[INFO] updating cached repository jackwillis/rtttl
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jackwillis/rtttl
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jackwillis/rtttl" "work/ex/beta-1.38-1/sources/1.37.0/gh/jackwillis/rtttl"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jackwillis/rtttl'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jackwillis/rtttl" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackwillis/rtttl"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackwillis/rtttl'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bc2818e3e3f27b024d283c818ecadb5d4d793697
[INFO] sha for GitHub repo jackwillis/rtttl: bc2818e3e3f27b024d283c818ecadb5d4d793697
[INFO] validating manifest of jackwillis/rtttl 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 jackwillis/rtttl 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 jackwillis/rtttl
[INFO] finished frobbing jackwillis/rtttl
[INFO] frobbed toml for jackwillis/rtttl written to work/ex/beta-1.38-1/sources/1.37.0/gh/jackwillis/rtttl/Cargo.toml
[INFO] started frobbing jackwillis/rtttl
[INFO] finished frobbing jackwillis/rtttl
[INFO] frobbed toml for jackwillis/rtttl written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackwillis/rtttl/Cargo.toml
[INFO] crate jackwillis/rtttl 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 jackwillis/rtttl 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/jackwillis/rtttl:/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] d9bc1fea3de3ca1f139681adcea588df51913a42a7564ab7f4b9194cacc4f1b5
[INFO] running `"docker" "start" "-a" "d9bc1fea3de3ca1f139681adcea588df51913a42a7564ab7f4b9194cacc4f1b5"`
[INFO] [stderr]    Compiling num-bigint v0.1.39
[INFO] [stderr]    Compiling num-rational v0.1.38
[INFO] [stderr]    Compiling rtttl v0.1.0 (/opt/crater/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(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(try_from)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/metadata.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / lazy_static! {
[INFO] [stderr] 13 | |     static ref DEFAULT_METADATA: Metadata = Metadata {
[INFO] [stderr] 14 | |         duration: 4,
[INFO] [stderr] 15 | |         octave: 3,
[INFO] [stderr] 16 | |         bpm: 120
[INFO] [stderr] 17 | |     };
[INFO] [stderr] 18 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/metadata.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / lazy_static! {
[INFO] [stderr] 13 | |     static ref DEFAULT_METADATA: Metadata = Metadata {
[INFO] [stderr] 14 | |         duration: 4,
[INFO] [stderr] 15 | |         octave: 3,
[INFO] [stderr] 16 | |         bpm: 120
[INFO] [stderr] 17 | |     };
[INFO] [stderr] 18 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/note.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | / lazy_static! {
[INFO] [stderr] 30 | |     static ref NOTE_REGEX: Regex = Regex::new(r"(-?\d+)?([a-gp]#?)(-?\d+)?(\.)?").unwrap();
[INFO] [stderr] 31 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/note.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | / lazy_static! {
[INFO] [stderr] 30 | |     static ref NOTE_REGEX: Regex = Regex::new(r"(-?\d+)?([a-gp]#?)(-?\d+)?(\.)?").unwrap();
[INFO] [stderr] 31 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `rtttl`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d9bc1fea3de3ca1f139681adcea588df51913a42a7564ab7f4b9194cacc4f1b5"`
[INFO] running `"docker" "rm" "-f" "d9bc1fea3de3ca1f139681adcea588df51913a42a7564ab7f4b9194cacc4f1b5"`
[INFO] [stdout] d9bc1fea3de3ca1f139681adcea588df51913a42a7564ab7f4b9194cacc4f1b5