[INFO] updating cached repository porglezomp/vcd-view
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/porglezomp/vcd-view
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/porglezomp/vcd-view" "work/ex/beta-1.37-6/sources/1.36.0/gh/porglezomp/vcd-view"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/porglezomp/vcd-view'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/porglezomp/vcd-view" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/porglezomp/vcd-view"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/porglezomp/vcd-view'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8832ef659fed6b0f841ea70a4dc330ee7bed8398
[INFO] sha for GitHub repo porglezomp/vcd-view: 8832ef659fed6b0f841ea70a4dc330ee7bed8398
[INFO] validating manifest of porglezomp/vcd-view 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 porglezomp/vcd-view 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 porglezomp/vcd-view
[INFO] finished frobbing porglezomp/vcd-view
[INFO] frobbed toml for porglezomp/vcd-view written to work/ex/beta-1.37-6/sources/1.36.0/gh/porglezomp/vcd-view/Cargo.toml
[INFO] started frobbing porglezomp/vcd-view
[INFO] finished frobbing porglezomp/vcd-view
[INFO] frobbed toml for porglezomp/vcd-view written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/porglezomp/vcd-view/Cargo.toml
[INFO] crate porglezomp/vcd-view 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing porglezomp/vcd-view 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-0/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/porglezomp/vcd-view:/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] 94eb51bb85594e5277f551f4a5bb1891064696a427ab43c03c7e11d08dd300ed
[INFO] running `"docker" "start" "-a" "94eb51bb85594e5277f551f4a5bb1891064696a427ab43c03c7e11d08dd300ed"`
[INFO] [stderr]    Compiling pkg-config v0.3.13
[INFO] [stderr]    Compiling cc v1.0.22
[INFO] [stderr]    Compiling vcd v0.4.0
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling webview-sys v0.1.0
[INFO] [stderr]    Compiling web-view v0.2.1
[INFO] [stderr]    Compiling vcd-view v0.2.0 (/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(nll)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[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 `vcd-view`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "94eb51bb85594e5277f551f4a5bb1891064696a427ab43c03c7e11d08dd300ed"`
[INFO] running `"docker" "rm" "-f" "94eb51bb85594e5277f551f4a5bb1891064696a427ab43c03c7e11d08dd300ed"`
[INFO] [stdout] 94eb51bb85594e5277f551f4a5bb1891064696a427ab43c03c7e11d08dd300ed