[INFO] updating cached repository nrc/rls-analysis
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nrc/rls-analysis
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nrc/rls-analysis" "work/ex/beta-1.37-6/sources/1.36.0/gh/nrc/rls-analysis"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/nrc/rls-analysis'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nrc/rls-analysis" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nrc/rls-analysis"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nrc/rls-analysis'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fd9939247dae2dbe4c801af4c0c3f82035f88d49
[INFO] sha for GitHub repo nrc/rls-analysis: fd9939247dae2dbe4c801af4c0c3f82035f88d49
[INFO] validating manifest of nrc/rls-analysis 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 nrc/rls-analysis 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 nrc/rls-analysis
[INFO] finished frobbing nrc/rls-analysis
[INFO] frobbed toml for nrc/rls-analysis written to work/ex/beta-1.37-6/sources/1.36.0/gh/nrc/rls-analysis/Cargo.toml
[INFO] started frobbing nrc/rls-analysis
[INFO] finished frobbing nrc/rls-analysis
[INFO] frobbed toml for nrc/rls-analysis written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nrc/rls-analysis/Cargo.toml
[INFO] crate nrc/rls-analysis 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] [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 nrc/rls-analysis 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-4/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/nrc/rls-analysis:/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] 7ec94340e9f6a397efaf7b373f0a8d0c9bb1e88fbc549f747fd30079e1cd397b
[INFO] running `"docker" "start" "-a" "7ec94340e9f6a397efaf7b373f0a8d0c9bb1e88fbc549f747fd30079e1cd397b"`
[INFO] [stderr]    Compiling json v0.11.13
[INFO] [stderr]    Compiling rls-data v0.18.2
[INFO] [stderr]    Compiling fst v0.3.3
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling derive-new v0.5.6
[INFO] [stderr]    Compiling rls-analysis v0.16.12 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![feature(type_ascription)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #![feature(crate_visibility_modifier)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 `rls-analysis`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7ec94340e9f6a397efaf7b373f0a8d0c9bb1e88fbc549f747fd30079e1cd397b"`
[INFO] running `"docker" "rm" "-f" "7ec94340e9f6a397efaf7b373f0a8d0c9bb1e88fbc549f747fd30079e1cd397b"`
[INFO] [stdout] 7ec94340e9f6a397efaf7b373f0a8d0c9bb1e88fbc549f747fd30079e1cd397b