[INFO] updating cached repository terrybrashaw/act
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/terrybrashaw/act
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/terrybrashaw/act" "work/ex/beta-1.38-1/sources/1.37.0/gh/terrybrashaw/act"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/terrybrashaw/act'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/terrybrashaw/act" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/terrybrashaw/act"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/terrybrashaw/act'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e17991959d13512574292ed9b45279bd0cd6ac89
[INFO] sha for GitHub repo terrybrashaw/act: e17991959d13512574292ed9b45279bd0cd6ac89
[INFO] validating manifest of terrybrashaw/act 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 terrybrashaw/act 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 terrybrashaw/act
[INFO] finished frobbing terrybrashaw/act
[INFO] frobbed toml for terrybrashaw/act written to work/ex/beta-1.38-1/sources/1.37.0/gh/terrybrashaw/act/Cargo.toml
[INFO] started frobbing terrybrashaw/act
[INFO] finished frobbing terrybrashaw/act
[INFO] frobbed toml for terrybrashaw/act written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/terrybrashaw/act/Cargo.toml
[INFO] crate terrybrashaw/act 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 terrybrashaw/act against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/terrybrashaw/act:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 3cac92a6f8f868e81f85efdab5d618719e0140a8f09434a8912f33898596c262
[INFO] running `"docker" "start" "-a" "3cac92a6f8f868e81f85efdab5d618719e0140a8f09434a8912f33898596c262"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling act v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(duration_as_u128)]
[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 `act`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3cac92a6f8f868e81f85efdab5d618719e0140a8f09434a8912f33898596c262"`
[INFO] running `"docker" "rm" "-f" "3cac92a6f8f868e81f85efdab5d618719e0140a8f09434a8912f33898596c262"`
[INFO] [stdout] 3cac92a6f8f868e81f85efdab5d618719e0140a8f09434a8912f33898596c262