[INFO] updating cached repository wilsoniya/filterless
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wilsoniya/filterless
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wilsoniya/filterless" "work/ex/beta-1.37-6/sources/1.36.0/gh/wilsoniya/filterless"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/wilsoniya/filterless'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wilsoniya/filterless" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/wilsoniya/filterless"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/wilsoniya/filterless'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 297ecca998690d103a3c7e20260af868f7c649d0
[INFO] sha for GitHub repo wilsoniya/filterless: 297ecca998690d103a3c7e20260af868f7c649d0
[INFO] validating manifest of wilsoniya/filterless on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wilsoniya/filterless on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wilsoniya/filterless
[INFO] finished frobbing wilsoniya/filterless
[INFO] frobbed toml for wilsoniya/filterless written to work/ex/beta-1.37-6/sources/1.36.0/gh/wilsoniya/filterless/Cargo.toml
[INFO] started frobbing wilsoniya/filterless
[INFO] finished frobbing wilsoniya/filterless
[INFO] frobbed toml for wilsoniya/filterless written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/wilsoniya/filterless/Cargo.toml
[INFO] crate wilsoniya/filterless already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing wilsoniya/filterless against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/wilsoniya/filterless:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 3743562e12c9385c0e7c8323cacfe8ccab55377f3cea26684ccca691a3944ebe
[INFO] running `"docker" "start" "-a" "3743562e12c9385c0e7c8323cacfe8ccab55377f3cea26684ccca691a3944ebe"`
[INFO] [stderr]    Compiling ncurses v5.86.0
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling filterless 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(btree_range)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(collections_bound)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(type_ascription)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:69:53
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn get_input<'a>(_stdin: &'a std::io::Stdin) -> Box<BufRead + 'a> {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn BufRead + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `filterless`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3743562e12c9385c0e7c8323cacfe8ccab55377f3cea26684ccca691a3944ebe"`
[INFO] running `"docker" "rm" "-f" "3743562e12c9385c0e7c8323cacfe8ccab55377f3cea26684ccca691a3944ebe"`
[INFO] [stdout] 3743562e12c9385c0e7c8323cacfe8ccab55377f3cea26684ccca691a3944ebe